So he said all these good qualities about this setup or Z31 but then he mentioned that "its not designed for power..". Was he talking about the car or the setup?
that is one sick fucken manifold setup!!! if your just watching this video and have never seen any of streetfighters pull vids, def go check them out now!!! there just nasty. straight nasty.
@seandobbs21 Not even close. A sequential setup runs one turbo, and then the other, separately. This one actually feeds the intake and exhaust from one turbo directly into the other one. Compound, not sequential.
In short does this takes away the need to run NOS. I noticed one of Boost Logic cars running NOS to spool the turbo at launch. Does anyone know what is done to his engine?
I have rode in a 7 second Grand National, stage 2 block, which was last produced in 1985. It didn't have AC or power steering, full weight 3600lbs car. Holly hell, when that thing launches, if your neck isn't braced it could possibly be broken. 0 - 100 in about 4s. We ran it on 696 in Roseville Michigan, tires heated 1st.
That's not 'Turbo Compound', that's 'Sequential Turbos'. Turbo Compounding extracts power from the turbine and sends it back to the engine crank or output. There's a few large diesel truck engines that have come out with turbo compounding lately (Detroit DD15, Scania...) for more power and mileage. Marc's running the same style as the Cat ACERT engines or the more recent Ford PowerStrokes.
@mrZdude Someone down the list said 'google it'. Go check Wikipedia: "Turbo-compound engine" and "Twin Turbo". Pay special attention to the first line of the 'Staged Turbos' paragraph.
I'm not wrong, and I'm not going to do anyone else's homework.
Marc's car is a monster. I remember the first time I saw it at a meet, I thought to myself "man that car looks like hell". But then I saw it run on the street, that changed my mind real fast. I love everything about it, right down to the beat to hell paint job. And it just goes to show. You can't judge a book by its cover.
since the exhaust passes through the hot side of the larger turbo then through the hot side of the smaller then out the tail end of the car. the intake side is just an air multiplier. the intake air from the larger turbo get multiplied in the larger turbo then multiplied again in the second turbo. with the larger being first the second turbo will see greater then ambient pressure entering and further multiply that before it enters the intake mani. hope that makes sense
Its simple to understand the small turbo is so to pick up the big ones lag because and bigger turbo isnt gonna hit full boost till a higher rpm so you got a clean powerband threw the hole rpm range
@1jzdrift1 it must not be that simple because he still has it backward and i think you do to. the larger(primary) turbo should be first then followed by the smaller(secondary) to reduce lag and make big power. this might help people understand, the exhaust gases spool a turbo. the compressed air from the intake side have nothing to do with spooling. they are 2 separate tracks. the small turbo will spool just as fast being 2nd in line, so you will still get the insta boost of the smaller one
Man, I ALWAYS confuse the 2. RX7 has a stock sequential setup and I THINK the Supra does too? Or is that a different kinda of stock setup? I know this setup is a whole new ball game. Can't find the comments from a year ago w/ me and some others explaining the differences and putting it to rest. Go figure.
umm is it me or does he have it set up backwards. for a true compound set up, wouldt you want the large turbo as the primary and the smaller as the secondary?
@nallen100 i think hes looking at reducing lag, so the small turbo wil act first as it ill spool alot faster, then once the larger turbo comes in the smaller one is made redundant. The large turbo is still the primary turbo in a sense
@wwwNooBcom hmm i just dont see how that could work properly. i mean i dont see any gain from running it like that. diesels run the larger turbo through the smaller to reduce lag and make a nice torque curve. not that it applies here but when people dont know how to properly run a compound set up they usually try or ask about running it the way op's video is. with the smaller one being the primary your limiting the max hp to the hp limit of the smaller turbo.
@nallen100 Hes looking to get max hp from the larger one without having to raise the rpm to a stupid level i think so the smaller on is just to reduce lag, like someone said on this video maybe running the smaller turbo into the lager one would have been a better idea then using it to power the engin lower down untill the lager one makes boost
hey, maybe somebody can clear my thoughts up... is it just me or does this set up look weird? IDK, but wouldnt running the smaller turbos compressor to the largers intake work better? this way its pushing a small turbo, and seems like itd stress the small turbo a bit with the bigger pushing thru, the way i think it is using the engine to spool the small and small is spoolin the large and large pushes engine... independantly, sort of... help me out
@evoryda Yeah I see what you mean, but it works similarly either way. The air has to go through both compressors, so it doesn't really matter which is first. In a perfect world where space wasn't a problem, you'd run a bypass valve on the outlet of the big turbo, so that when it comes on boost, the air runs straight from the compressor of the big turbo, into the intercooler rather than through the small turbo, because that small turbo would be a restriction, but obviously its not too bad here.
I don't know if that's entirely correct, this is how I understand it: Basically, a sequential turbo setup has a small turbo and a big turbo. The small turbo spools, then the increase in the air flow increases exhaust gas flow and spools the bigger turbo but that small turbo never stops boosting. On this setup the 67 boosts then when at peak boost the air is routed around the 67 into the larger turbo so the 67 isn't used any longer. But that's what I gather from all of this. I may be wrong.
@BattousaiRyuu88 SW = pure badass. He's a really cool guy. I talked with him at TX2k10. He's just chill and down to earth, awsbakerordie he is far from a douche
@ngbanks I didn't have the chance to meet with him when I was in Austin but I did get to look around Boost Logic and talk to a few friends of his. The man is a pure badass.
@BattousaiRyuu88 no big deal man, at least you have the balls to admit when you are mistaken, which is much more than you can say for some of the Youtube users.
Caterpillar has been running compound turbocharging on its diesel engines for many years, the principals are exactly the same. A very linear torque curve and power delivery is the result. Running this setup also decreases cartridge bush wear (or rollers if you run them). This is not a sequential turbo setup. This is 100% compounded.
Marc is explaining this wrong, which I can tell is confusing people, hes over simplifing. it.
Both turbos are always working and spinning, but when the smaller turbo spooing up, and hits its wastegate setting, and its waste gate opens, its still making/using boost, and maintaining its rated PSI, but now its diverting the extra exhaust gas into the bigger/second turbo.
But just because the WG is open does not mean the small turbo isn't doing any work, its still working.
@viniebobareeno Very good and easy take on how they all create boost in their own way. Parrallel, Sequential, AND Compound (just like a Supercharged+Turbo setup people see/read in magazines like on that ATI Scion). Very cool. Any cars out there that have Sequential STOCK? Supras have this method or Parrallel? I think I'm confusing this with aftermarket V8 or V10 Twin Turbo setups.
But your setup looks awsome as well, one day i will build an r32gtr with my setup and race you Considering our BIG turbos are similar I wander who will spool the fastest .
I had a twincharged setup on my acura integra, It had a jackson racing screw type supercharger (the kind that sits under the intake manifold) witch I used to give me more low end horse power and exhaust pressure to spool my big turbo. I think that my setup was much simpler and probably easier to build, but produced the same result (i,e no lag) in a compact B20b with a GSR head integra.
@nismoman0712 I don't think anyone is hating. They're just being wrong about their ideas on a compound turbo setup. I researched (more thank wiki) before I posted my previous comment.
Wow, Wikipedia it or read this (it's my summary of what I read from it)..
Parallel: Two identical turbo's doing exactly the same thing the whole time. The idea is they spool up quicker than one big turbo.
Sequential: Meaning in sequence (1, 2). A small turbo spools up by itself, then a valve opens when required boost is reached, letting the larger turbo take over or add it's power.
Compound: One small turbo feeds a larger turbo, which multiplies the boost rather than adding.
In a way this IS a sequential compound turbo set, in the way that when the small turbo's exhaust housing gets choked out and exhaust reroutes to the big turbo.
Either way, im glad that not only the diesel guys see the advantage of compounds.
this is not a turbo compound! A turbo compound is like an inverse supercharger. In a turbo compound the exhaust spins a turbine which is geared down and connected to the crankshaft, resulting in more torque.
This is not Turbo compound, Turbo compound is feeding kinetic energy from the exhaust gasses back to the crankshaft through a blow-down turbine, not a pressure turbine. Google "naca report 786", the Turbo-compound wiki and the info about the Curtiss-Wright R-3350 Duplex Cyclone Turbo-Compound available at enginehistory
tumdeax, sequential is two of the same turbo (hence twin) It's using two smaller turbos instead of one big one. slightly less power, less lag.
compound uses a small turbo to boost spool the big turbo, then the small turbo is bypassed with a valve so the big turbo can take over completely without over boosting the small turbo. same power, much less lag.
Sequential is one turbo being used to make power before a bigger one can spool and either take over or add its airflow. They don't have to be identical and they don't have to both be used at the same time.
Compounds have a high and low pressure turbo. The big turbo compresses the air and the small turbo compresses that air again.
What boost logic has made is a simple sequential system. At 22psi the small turbo is doing nothing, not a compound function.
@Turbo617 sequential, sequenced means two turbo's working together as one system. compound is like having TWO DIFFERENT KITS. so you are correcting nothing.
@Turbo617 You are the one who doesn't know shit. Listen to the video and shut the fuck up. You are saying different things each time you respond. Boost Logic's "COMPOUND TURBO SYSTEM" is what this video is about. COMPOUND BOOST is using a small turbo or supercharger to spool a large turbo to cut down the lag. "SEQUENTIAL TURBO" is the same as "TWIN TURBO" meaning TWO SMALLER TURBO'S in place of a LARGER TURBO to get a large boost with less lag. Get your facts straight. You fucking dirt bag.
would it be possible or in any ways efficient to run a twin turbo setup, say on a LS1, with one side running maybe a T25 small turbo and the other running a T4 trim turbo? Would it pretty much be the same as a compound turbo setup without the diverter valve for the exhaust manifold where the higher boost from the T4 would just take over and out boost the T2, or would it cause an overboost situation?
God I want one on my Supra and I want one now. BoostLogic is doing some great things. I can't wait until they can ship these things. Otherwise I might have to take a road trip.
the Y would divert filtered air into either the small to then pass through the big... or divert fresh air into the big while cutting the flow after the small
same for the exhaust side y right after the small turbo that diverts exhuast into the big while cutting the small..
basically a 3rd gen rx7 sequential style turbo
cuz if your not actually compounding the boost then whats the point of this setup?
run the small turbo into the big turbo upto the boost threshold of the bigger turbo... then cut the smaller turbo off completely, route the filtered air and exhuast straight to the big turbo via valves.
do a Y valve after the smaller turbo on both intake and exhaust
hmm... wouldn't the smaller turbo act as a restriction to the bigger turbo on the intake side... i dont see how the wastegate setup would work... that seems like the majority of the exhaust would go into the smaller turbo and over spool it...
does it just help with the compressor efficiency range? (compressor map shifting to the right/up?)
does it limit the heat generated from a smaller turbo being at the upper range of its efficiency at 20psi compared to the bigger turbo at 20psi?
so im guessing those turbos are externally wastegated and don't have internal wastegates?
kelldog44 2 weeks ago
@kelldog44 go back to 18 secs, what do you think?? simple questions get simple answers!
preprodigy 2 weeks ago
looks like 2 spiders fuckin
indianabackwoodsboy1 1 month ago 2
This is one "pretty" video. =p
ughkane614h 1 month ago
This has been flagged as spam show
This vid is popular on Botswana
jesusgray922 1 month ago
Your wastegate pipes are as bigger then my intakes :(
wilsonhill12 2 months ago
Oh MY GOD!
Trippy20100 2 months ago
where do you get that spark plug cover for a 2jzge i want one bad can anyone help!!!!!
airsoftboy14 2 months ago
can the turbos be replaces by Garrett turbos?
lobzdik 2 months ago
"KIND OF A SLEEPER"
300zx
REALLY DUDE
"ITS REALLY PRETTY!"
"ITS PREDICTABLE"
YEAH THATS A SLEEPER ALRIGHT
7194690 2 months ago
So he said all these good qualities about this setup or Z31 but then he mentioned that "its not designed for power..". Was he talking about the car or the setup?
holafceja 2 months ago
@holafceja He said the handling wasn't that good, but that it didn't matter because the car was designed for power.
rustyATV 2 months ago
omg can i have one?! :) Sure would look pretty on a DSM!
buckeyebrothas 3 months ago 2
@buckeyebrothas It sure WOULD look pretty on a DSM!!!
cxbra 3 months ago
that is one sick fucken manifold setup!!! if your just watching this video and have never seen any of streetfighters pull vids, def go check them out now!!! there just nasty. straight nasty.
preprodigy 4 months ago
wwhere did you get the top cover for the engine
airsoftboy14 6 months ago
This is a sequential turbo set-up similar to the OEM set-up on the FD3
seandobbs21 7 months ago
@seandobbs21 Not even close. A sequential setup runs one turbo, and then the other, separately. This one actually feeds the intake and exhaust from one turbo directly into the other one. Compound, not sequential.
787Bisurdaddy 6 months ago
In short does this takes away the need to run NOS. I noticed one of Boost Logic cars running NOS to spool the turbo at launch. Does anyone know what is done to his engine?
I have rode in a 7 second Grand National, stage 2 block, which was last produced in 1985. It didn't have AC or power steering, full weight 3600lbs car. Holly hell, when that thing launches, if your neck isn't braced it could possibly be broken. 0 - 100 in about 4s. We ran it on 696 in Roseville Michigan, tires heated 1st.
sinusbradycardia 7 months ago
@ernie750 Good Compound Turbo.
Semantics aside, you don't know what you're talking about.
mrZdude 8 months ago 2
@mrZdude nah hes right, jus got the words mixed up, wat hes talking about is turbo compounding. he explaind it right too.
firat123456789 6 months ago
@firat123456789 I wasn't talking about Marc, I was talking about ernie750. And that was supposed to say Google Compound turbo, not good...LOL
mrZdude 6 months ago
@mrZdude lol im talking about ernie750 too lool, turbo compounding does exist. but he just mixed up the words lol
firat123456789 6 months ago
if its have a/c i would love it
even if it doesnt i love it
2jz!!!!!
Hebert6760 8 months ago
Sweet set-up! but:
That's not 'Turbo Compound', that's 'Sequential Turbos'. Turbo Compounding extracts power from the turbine and sends it back to the engine crank or output. There's a few large diesel truck engines that have come out with turbo compounding lately (Detroit DD15, Scania...) for more power and mileage. Marc's running the same style as the Cat ACERT engines or the more recent Ford PowerStrokes.
Semantics aside, I bet it's a hell of a fun car.
ernie750 8 months ago
@ernie750 You're wrong.
mrZdude 8 months ago
@mrZdude Someone down the list said 'google it'. Go check Wikipedia: "Turbo-compound engine" and "Twin Turbo". Pay special attention to the first line of the 'Staged Turbos' paragraph.
I'm not wrong, and I'm not going to do anyone else's homework.
ernie750 4 months ago
@ernie750 Wikipedia is hardly a credible source, for all I know you just edited it to say what you believe.
mrZdude 4 months ago
@mrZdude What a cynical tit you are...
ernie750 3 months ago
Marc's car is a monster. I remember the first time I saw it at a meet, I thought to myself "man that car looks like hell". But then I saw it run on the street, that changed my mind real fast. I love everything about it, right down to the beat to hell paint job. And it just goes to show. You can't judge a book by its cover.
BOCGTO 9 months ago
Looks beautiful.....and looks like a clusterfuck at the same time.
rex3453 9 months ago
really isn't this the same supra sequential turbo just larger? same with porsche and new powerful diesel engines like the bmw 545d's?
mongoosecage 9 months ago
thats sick
jhaze918 10 months ago
I lost track after the 4th or 5th turbo.
storytellproductions 10 months ago
its the same thing that ford does on the superduty
rchotrodder1 10 months ago
Very nice. Small turbo boosting the big turbo for more boost. Hahah sick. I had a similar idea once. Never did it though.
ROCKNAIRFORCES 11 months ago
I have personally ridden in this car and this compound setup works QUITE well. If anyone thinks it's done wrong, bring money and set up a race.
satanz31 1 year ago 2
since the exhaust passes through the hot side of the larger turbo then through the hot side of the smaller then out the tail end of the car. the intake side is just an air multiplier. the intake air from the larger turbo get multiplied in the larger turbo then multiplied again in the second turbo. with the larger being first the second turbo will see greater then ambient pressure entering and further multiply that before it enters the intake mani. hope that makes sense
nallen100 1 year ago
Its simple to understand the small turbo is so to pick up the big ones lag because and bigger turbo isnt gonna hit full boost till a higher rpm so you got a clean powerband threw the hole rpm range
1jzdrift1 1 year ago
@1jzdrift1 it must not be that simple because he still has it backward and i think you do to. the larger(primary) turbo should be first then followed by the smaller(secondary) to reduce lag and make big power. this might help people understand, the exhaust gases spool a turbo. the compressed air from the intake side have nothing to do with spooling. they are 2 separate tracks. the small turbo will spool just as fast being 2nd in line, so you will still get the insta boost of the smaller one
nallen100 1 year ago
Man, I ALWAYS confuse the 2. RX7 has a stock sequential setup and I THINK the Supra does too? Or is that a different kinda of stock setup? I know this setup is a whole new ball game. Can't find the comments from a year ago w/ me and some others explaining the differences and putting it to rest. Go figure.
Millertalon 1 year ago
umm is it me or does he have it set up backwards. for a true compound set up, wouldt you want the large turbo as the primary and the smaller as the secondary?
nallen100 1 year ago
@nallen100 i think hes looking at reducing lag, so the small turbo wil act first as it ill spool alot faster, then once the larger turbo comes in the smaller one is made redundant. The large turbo is still the primary turbo in a sense
wwwNooBcom 1 year ago
@wwwNooBcom hmm i just dont see how that could work properly. i mean i dont see any gain from running it like that. diesels run the larger turbo through the smaller to reduce lag and make a nice torque curve. not that it applies here but when people dont know how to properly run a compound set up they usually try or ask about running it the way op's video is. with the smaller one being the primary your limiting the max hp to the hp limit of the smaller turbo.
nallen100 1 year ago
@nallen100 Hes looking to get max hp from the larger one without having to raise the rpm to a stupid level i think so the smaller on is just to reduce lag, like someone said on this video maybe running the smaller turbo into the lager one would have been a better idea then using it to power the engin lower down untill the lager one makes boost
wwwNooBcom 1 year ago
@wwwNooBcom isnt he trying to run the smaller into the larger? which is what i was trying to say is backwards.
nallen100 1 year ago
hey, maybe somebody can clear my thoughts up... is it just me or does this set up look weird? IDK, but wouldnt running the smaller turbos compressor to the largers intake work better? this way its pushing a small turbo, and seems like itd stress the small turbo a bit with the bigger pushing thru, the way i think it is using the engine to spool the small and small is spoolin the large and large pushes engine... independantly, sort of... help me out
evoryda 1 year ago
@evoryda Yeah I see what you mean, but it works similarly either way. The air has to go through both compressors, so it doesn't really matter which is first. In a perfect world where space wasn't a problem, you'd run a bypass valve on the outlet of the big turbo, so that when it comes on boost, the air runs straight from the compressor of the big turbo, into the intercooler rather than through the small turbo, because that small turbo would be a restriction, but obviously its not too bad here.
hiimcam 1 year ago
@hiimcam The smaller turbo would bottleneck the larger turbo if it had to pass the airflow from the bigger turbo.
silicosys4 8 months ago
THOUGHT, How about using a wastegate to bypass around the small turbo on the intake side to keep it from over spinning?
OceanStateTuning 1 year ago
I don't know if that's entirely correct, this is how I understand it: Basically, a sequential turbo setup has a small turbo and a big turbo. The small turbo spools, then the increase in the air flow increases exhaust gas flow and spools the bigger turbo but that small turbo never stops boosting. On this setup the 67 boosts then when at peak boost the air is routed around the 67 into the larger turbo so the 67 isn't used any longer. But that's what I gather from all of this. I may be wrong.
ngbanks 1 year ago
can someone explain me whats the difference between a sequential and compound???!?!?
bassist199214 1 year ago
@bassist199214 where u not listening?
compound turbos blow hot air from 1 turbo to the other for quicker spool, but u gotta have the mods to cool the engine
twins dont do t
ddavid993 1 year ago
@bassist199214 im a z32 fan to the heart but i must admit compound set is the way to go
Z32spdstr 1 year ago
Isnt this kinda what Porsche did with the late model 911 turbos?
foxxrider250r 1 year ago
omg very nice work
KillarXoNe 1 year ago
@ 2:00
he's like "oh I'll just sit on the FORD GT"
what a douche...
awsbakerordie 1 year ago
@awsbakerordie That's the owner sitting on that GT. SW, look him up.
BattousaiRyuu88 1 year ago
@BattousaiRyuu88 SW = pure badass. He's a really cool guy. I talked with him at TX2k10. He's just chill and down to earth, awsbakerordie he is far from a douche
ngbanks 1 year ago
@ngbanks I didn't have the chance to meet with him when I was in Austin but I did get to look around Boost Logic and talk to a few friends of his. The man is a pure badass.
BattousaiRyuu88 1 year ago
@BattousaiRyuu88 I was talking about SW not Marc....
ngbanks 1 year ago
@ngbanks My bad
BattousaiRyuu88 1 year ago
Comment removed
ngbanks 1 year ago
@BattousaiRyuu88 no big deal man, at least you have the balls to admit when you are mistaken, which is much more than you can say for some of the Youtube users.
ngbanks 1 year ago
@BattousaiRyuu88
my bad. i just thought it was funny. i'd never sit on an exotic...
awsbakerordie 1 year ago
@BattousaiRyuu88
and you've gotta admit, the way he looked down before he sat down said "perfect. i need to sit down." haha sorry SW. didn't know that was yours! :D
awsbakerordie 1 year ago
@awsbakerordie I"ll admit it definitely looked that way. Had I not known it was SW's I would have thought the same thing.
BattousaiRyuu88 1 year ago
This is very cool!..... Dont confuse this with a "sequential" setup.... this is "compound"
marek0086 1 year ago
Your a beast! a lot of inspiration here!
laotioncutie21 1 year ago
That dude might be the coolest guy ever. and I'm not even kidding. Dogdove
dogdove 1 year ago
Caterpillar has been running compound turbocharging on its diesel engines for many years, the principals are exactly the same. A very linear torque curve and power delivery is the result. Running this setup also decreases cartridge bush wear (or rollers if you run them). This is not a sequential turbo setup. This is 100% compounded.
MrBenCleaver 1 year ago
its a 2jzge+T , one of the better Plus t kits ive seen
kur715 1 year ago
Comment removed
marek0086 1 year ago
@marek0086
Supercharger + Turbo = Twincharged
240sxdriver 1 year ago
Comment removed
marek0086 1 year ago
Marc is explaining this wrong, which I can tell is confusing people, hes over simplifing. it.
Both turbos are always working and spinning, but when the smaller turbo spooing up, and hits its wastegate setting, and its waste gate opens, its still making/using boost, and maintaining its rated PSI, but now its diverting the extra exhaust gas into the bigger/second turbo.
But just because the WG is open does not mean the small turbo isn't doing any work, its still working.
RustspecS13 1 year ago
@RustspecS13 So is the smaller turbo using a lower A/R and the larger turbo is using a higher A/R?
LRG06 1 year ago
@viniebobareeno Very good and easy take on how they all create boost in their own way. Parrallel, Sequential, AND Compound (just like a Supercharged+Turbo setup people see/read in magazines like on that ATI Scion). Very cool. Any cars out there that have Sequential STOCK? Supras have this method or Parrallel? I think I'm confusing this with aftermarket V8 or V10 Twin Turbo setups.
Millertalon 1 year ago
@Millertalon " Any cars out there that have Sequential STOCK? "
The 3rd generation FD RX-7 did.
Surannhealz 1 year ago
@Surannhealz 2JZ-GTE'S have sequential for stock
240sxdriver 1 year ago
lol how bout that retard sitting on the GT40?
Foozer1337 1 year ago
@Foozer1337 That "retard" happens to be SW.
Red01WS6 1 year ago
But your setup looks awsome as well, one day i will build an r32gtr with my setup and race you Considering our BIG turbos are similar I wander who will spool the fastest .
syprix 1 year ago
I had a twincharged setup on my acura integra, It had a jackson racing screw type supercharger (the kind that sits under the intake manifold) witch I used to give me more low end horse power and exhaust pressure to spool my big turbo. I think that my setup was much simpler and probably easier to build, but produced the same result (i,e no lag) in a compact B20b with a GSR head integra.
syprix 1 year ago
i know Marc personally. he knows what he is talking bout.
haters can piss off.
nismoman0712 1 year ago
@nismoman0712 I don't think anyone is hating. They're just being wrong about their ideas on a compound turbo setup. I researched (more thank wiki) before I posted my previous comment.
viniebobareeno 1 year ago
@nismoman0712 more than wiki**
viniebobareeno 1 year ago
Wow, Wikipedia it or read this (it's my summary of what I read from it)..
Parallel: Two identical turbo's doing exactly the same thing the whole time. The idea is they spool up quicker than one big turbo.
Sequential: Meaning in sequence (1, 2). A small turbo spools up by itself, then a valve opens when required boost is reached, letting the larger turbo take over or add it's power.
Compound: One small turbo feeds a larger turbo, which multiplies the boost rather than adding.
Rant over.
viniebobareeno 1 year ago
i know Marc personally. he knows what he is talking bout.
haters can only catchup if they are quick enough . haha
nismoman0712 1 year ago
20lbs out of the small turbo..lol
firesquare16 1 year ago
In a way this IS a sequential compound turbo set, in the way that when the small turbo's exhaust housing gets choked out and exhaust reroutes to the big turbo.
Either way, im glad that not only the diesel guys see the advantage of compounds.
And dont get me wrong, im a diesel tech.
psychotikpaisano 1 year ago
We know it's not a turbo compound. It's compound turbocharging.
positech123 2 years ago
this is not a turbo compound! A turbo compound is like an inverse supercharger. In a turbo compound the exhaust spins a turbine which is geared down and connected to the crankshaft, resulting in more torque.
Z0mbeSlayer 2 years ago
could you do this set up for a 00 or an 01 s4??? i would so want that for mine??? how much you think?
aldo263 2 years ago
Does anyone know how much it would be to swap a 2JZ into a Z31, and also how much this "compound turbo" setup would cost to add on?
need4speed39566 2 years ago
This is not Turbo compound, Turbo compound is feeding kinetic energy from the exhaust gasses back to the crankshaft through a blow-down turbine, not a pressure turbine. Google "naca report 786", the Turbo-compound wiki and the info about the Curtiss-Wright R-3350 Duplex Cyclone Turbo-Compound available at enginehistory
flexyco 2 years ago 2
Wait this is the same turbo set-up as the 98 RX-7 and 98' supra. And isn't it called a sequential twin turbo?
tumdeax 2 years ago
no. go do homework
chrisjjwilson 2 years ago
This has been flagged as spam show
lol chris, that comment is a win!
tumdeax, sequential is two of the same turbo (hence twin) It's using two smaller turbos instead of one big one. slightly less power, less lag.
compound uses a small turbo to boost spool the big turbo, then the small turbo is bypassed with a valve so the big turbo can take over completely without over boosting the small turbo. same power, much less lag.
HeavyGhost 2 years ago
@HeavyGhost Your descriptions are wrong.
Sequential is one turbo being used to make power before a bigger one can spool and either take over or add its airflow. They don't have to be identical and they don't have to both be used at the same time.
Compounds have a high and low pressure turbo. The big turbo compresses the air and the small turbo compresses that air again.
What boost logic has made is a simple sequential system. At 22psi the small turbo is doing nothing, not a compound function.
Turbo617 1 year ago 2
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@Turbo617 sequential, sequenced means two turbo's working together as one system. compound is like having TWO DIFFERENT KITS. so you are correcting nothing.
HeavyGhost 1 year ago
@HeavyGhost Incorrect.
Sequential means either two identical turbos working together in parallel or a small letting a bigger turbo take over.
Compound is two turbos working in series, both compressing air but the small one compressing the already compressed air even further.
Its hard NOT to correct you, you don't have a clue what you're talking about.
Turbo617 1 year ago
@Turbo617 You are the one who doesn't know shit. Listen to the video and shut the fuck up. You are saying different things each time you respond. Boost Logic's "COMPOUND TURBO SYSTEM" is what this video is about. COMPOUND BOOST is using a small turbo or supercharger to spool a large turbo to cut down the lag. "SEQUENTIAL TURBO" is the same as "TWIN TURBO" meaning TWO SMALLER TURBO'S in place of a LARGER TURBO to get a large boost with less lag. Get your facts straight. You fucking dirt bag.
HeavyGhost 1 year ago
no sequential does not flow boost directly into the large turbocharger compressor but this does thats the difference
shinobistyle86 2 years ago
@shinobistyle86 That does not automatically make it a compound.
Turbo617 1 year ago
i want one so bad. I love hearing them spool twice
Enigma82465 2 years ago
quick question for you guys....
would it be possible or in any ways efficient to run a twin turbo setup, say on a LS1, with one side running maybe a T25 small turbo and the other running a T4 trim turbo? Would it pretty much be the same as a compound turbo setup without the diverter valve for the exhaust manifold where the higher boost from the T4 would just take over and out boost the T2, or would it cause an overboost situation?
just curious here, thanks.
mtooshort20 2 years ago
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jeremybrons56693 2 years ago
Do want!!!!!
jonnytann09 2 years ago
Very nice kit, we still need a few things: DYNOCHART of the kit on an ORIGINAL ENGINE, and a DYNOCHART of the kit on a MODDED ENGINE (with mod-list).
robbedoes1985 2 years ago
God I want one on my Supra and I want one now. BoostLogic is doing some great things. I can't wait until they can ship these things. Otherwise I might have to take a road trip.
lazysan 2 years ago
yo i got a z31 are u selling motor and turbo kit commercially?
Myers1987 2 years ago
Looks like it's going to be the New Turbo setup on the Block.......... Literly on the Block .... LOL
mexicanracer03 2 years ago
the Y would divert filtered air into either the small to then pass through the big... or divert fresh air into the big while cutting the flow after the small
same for the exhaust side y right after the small turbo that diverts exhuast into the big while cutting the small..
basically a 3rd gen rx7 sequential style turbo
cuz if your not actually compounding the boost then whats the point of this setup?
ImRichRu 2 years ago
to minimize lag.
he said that at the beginning.
FreedomMix 2 years ago
@FreedomMix unfortunately the small turbo is choking flow (high exhaust backpressure) by not having the intake air bypassed as well.
OfficialAppleChannel 1 year ago
why not run the turbos indepentdley of each other
run the small turbo into the big turbo upto the boost threshold of the bigger turbo... then cut the smaller turbo off completely, route the filtered air and exhuast straight to the big turbo via valves.
do a Y valve after the smaller turbo on both intake and exhaust
ImRichRu 2 years ago
hmm... wouldn't the smaller turbo act as a restriction to the bigger turbo on the intake side... i dont see how the wastegate setup would work... that seems like the majority of the exhaust would go into the smaller turbo and over spool it...
does it just help with the compressor efficiency range? (compressor map shifting to the right/up?)
does it limit the heat generated from a smaller turbo being at the upper range of its efficiency at 20psi compared to the bigger turbo at 20psi?
ImRichRu 2 years ago
don't fd rx7's come with a compound turbo set-up? Anyway that's awesome and would love to see that thing in action
85turboS12 2 years ago
No, sequential. One turbo doesn't spool the other
shmacklepap 2 years ago
got it thanks
85turboS12 2 years ago
where do i get a wastegate lie that to build my own compounding turbo setup for my vg30?
ImRichRu 2 years ago
Amazing . Mark you always bring the heat with you street fighter :) Keep the great work and we want to see some new videos .
Monester2JZ 2 years ago
What a Nerd....
haha just kidding, cant wait for a ride with this new setup
shmacklepap 2 years ago