Sound Performance Sequential Turbo

[lobzdik]

As much as I admire Boost Logic's new compound turbo kit for the Supra, I found the Sound Performance's crude quick spool valve achieves similar results in a much less complex package. I just did not care for the amount of plumbing they have. Now I really am looking forward to see the full layout of SPs sequential turbo kit and see if it is much better!!

[runin650]

ok for all who think they know but dont about Sequential turbos go to look up "Toyota Supra - Wikipedia, the free encyclopedia" and then make comments. 2 turbos same size-all E gas go's to one making it spool very fast- and maybe making 14p of boost in the low end-then when spooled it opens a waste gate and spools the next one making another 14p of boost = 28 2 gether - now if u had 1 big turbo it would take a long ass time to spool and make the same power making this power much less usable

[blown4six]

Love supras and all but, that 5 seconds from WOT until the boost hits is what makes me love my supercharged motor :P

[812Mizata]

You shouldn't ever run a car without an air filter. EVER.

[GreatWhite85]

Hey for a Mark IV, what do you suggest: sequential, parallel twin or just single? I've been hearing wonders about how the sequential setups are still able to pull massive boost in the upper rpm's but hear about how much more torque they have. Opinion, anyone?

[DVcustomZ]

Whats the build?

[dwnrety1]

HKS T51r or precision T88 single plz and thanx. :D

[johnyjoe2k]

That is not sequential that is called parallel. Has anyone every tried to do a sequential turbo set up on an inline 4? What what kind of blow off valve or bypass valve do you use or would you use?

[SupraExDriver]

Posted a resonse to this video with this car's updates!

[iTzzEuphoriaaaaaa]

You get more hp if you have non sequentials

[gruneygunnar]

@iTzzEuphoriaaaaaa what are non sequentials?

[iTzzEuphoriaaaaaa]

@gruneygunnar Just tune the ecus and the turbos will spool up at the same time instead of one spooling to a certain rpm then the other taking over

[tkelly27]

@iTzzEuphoriaaaaaa

Sequential twin turbochargers use all the exhaust gas energy to spool up one turbo, then use a diverter/wastegate (whatever you want to call it) to put the exhaust to both turbochargers.

The thinking is, if you can spool up one turbo at say, 3000rpm, by the time it hits 1bar of boost, you should have enough exhaust gas to spool the second instantly.

To spool two of the same turbos at the same time would take until 6000rpm to get an equivalent amount of exhaust energy.

[iTzzEuphoriaaaaaa]

@tkelly27 Isnt that what i just said in laymans terms ?

[tkelly27]

@iTzzEuphoriaaaaaa

I guess so, but you'd rather both turbos spool at 6000 rather than one spool at 3000 and the other spool 500-1000rpm later?

One doesn't take over, they run exactly the same way they would if they were non-sequential when the valve opens. It's just that all the exhaust going through one lets it make boost so the 2nd one can spool up sooner.

[iTzzEuphoriaaaaaa]

@tkelly27 idc dude 

[iTzzEuphoriaaaaaa]

@gruneygunnar Non sequentials are two turbos that spool up at the same time

[G60ed77]

Awesomeness

[TCAOCampbell]

what kinda blow off valve does he/she have in there? sounds sweet....

[dustin19jdm]

@TCAOCampbell it's a hks bov ;) I think the ssqv..

[poncecarra]

this baby will smoke any pussytang!!!!!! IMPORT MUSCLE BABY!!!!!!!!!

[supradave9]

what size are the twins?

[1983Nonchalant]

Just think about how many T3/T4 trims there are. I used to own a scion tc with a .63a/r & 57 comp wheel. Compared to my friends tC with a stock t-netics turbo, it was a world of difference. Either way Tim and Chris from SP I'm sure are trying to balance the power of the supra with the notorious lag.

[thebasics0609]

is it possible there the same turbo housing but the primary has a smaller trim than the secondary?....I think it would stop hideous turbo lag that most single turbo 2jz's have. ITs a great setup but arent you risking it without filters on the turbos?

[scarface4269]

im pretty sure he has filters on the turbo but he just took them off for the dyno run. Worst thing that can happen is specs of dust going in but if he drives it on the road like that, he might get a major problem on his hands.

[ph33x]

It's an application thing.. Yes they're alike, but the manifolds would be in seq setup.

And yes sequential brings boost on early, but only if you use a smaller turbine for the primary.

In this setup, with his controller, he could run it as a bi turbo (parallel) setup, he could also run it as seq for a less violent boost transition.

Or perhaps the 2nd turbo is running off a button, kinda like scramble boost. But with a decent transition.

--

But guess what, for once - Everyone is right.

[soundperformance]

Sequential turbos are always the same size. Compound turbos are the ones that are staggered in size.

[alexserra11]

LOVE THAT TURBO SOUND. DAMN.

[makipsee]

these so look like 2 similar turbos... but at :32 it does sound like a second turbo spools up

[evil2rs]

how can 2 turbos of the same size work as a sequential set up?? the idea of a seq setup is a smaller turbo boosts up at lower rpm then the bigger turbo is fased in and starts making boost when the revs get up to around 4500rpm. these must be in a parallel arrangment on this vid if they the same size.

[VQ35DER]

UR RIGHT

[mymakins]

The supra has a sequential set up, and both of its turbos are the same size. Its a misconception that you need one to be smaller than the 2nd one. Its all on how you direct the exhaust gases and when. These are in sequential.

[haarisa786]

but lyk cant u change it through ecu which one kicks in the most first?

[supradave9]

no because thered be no way to redirect all the exhaust pressure to the desired turbo, it has to be mechanical

[haarisa786]

aww okay thanks:)

[supradave9]

sorry but you are incorrect, a sequential set up is obtain by first routing all of the exhaust gas to on of the turbos, its like having one small turbo at first. this is why it spools so quickly , at a certain rpm/boost pressure the exhaust gas is allowed to be routed to the second turbo of same size this adds additional boost to the intake. this is done via a valve system operated either electronically or normally by vacum

[zenrael]

@supradave9 Is this the same as BL's compound kit?

[supradave9]

no a compound turbocharger is mostly found on large diesel trucks like a an 18 wheeler, in the case of a compound turbocharger, the boost from a smaller turbo feeds the intake to a larger turbo

[gobblejr]

WOW the driver of that supra bogged every gear...how dissappointing

[cyrafari]

So you're suggesting he rips through the gears on the dyno? go sit somewhere and think about what you've said...silly noob!

[lilaznxloverboy]

OMG....

I just shat bricks!

[TheDrew2305]

Looks like bi-turbo not sequental... or is there 4 turbine housings?

[RagingIndian]

Looks like a bi-turbo setup to me as well.

[mtlhd86]

omg thats going to make me cream my pants

[twinturbo1995]

What a lucky guy.Think we can see some high way runs?

[Luiscruz198719]

that shit sound like a baby gurl when it shift gear

[755hp]

Whooo!! I guess the twin turbo upgrades for the Supra is worth it after all!!! I would still go for the single turbos though.

[jbljay]

Sequential in a way is somewhat different from twin. twin means two of the same turbo, sequential is one small and one large. this allows for some nice torque-E power from idle upto around 3,000 rpm and then your larger turbo comes in and just screams. i'm getting ready to do this to a 3SGTE, i would highly suggest this for a 1JZ or 2JZ. it would be insane.

[teddysevo8you]

ammm correct me if im wrong bro...but isnt it 2 58mm turbos? one boosts first then the other boots...as opposed to both boosting like a parallel turbos(300zx,vr4,996tt)

[twinturbo1995]

naw these boost at the same time their not like the stock twins which one boost up then the other follows.

[rb26xs14]

just wondering...but why would you do that to a 3sgte? why not just stick with a single turbo

[N2OHZOH6]

I am also curious, anyone know?

I'm a pushrod guy so I don't know a whole lot about turbos, but doesn't sequential turbos of the same size kind of defeat the purpose?

Please, correct me if I'm wrong (which I surely am).

[sanramondrift]

WTF are you talking about? it's still a 2jzgte

[94SuPraGuY]

This Sequential turbo setup gives you boost as low as 3,500 rpm vs 4,500 or 5,000 rpm.