TWIN TURBO 1971 CHEVELLE OVERVIEW AND DRAGSTRIP RUN

[2xchrome]

That's sad! Waste of money. 12 seconds. Lol

[yandusud]

sound ??????



[69Cutlass385]

Huh, my 350 runs 12.8 on motor. You have a power adder. How is that possible?

[klains]

Money and time. I ran the last motor for about 5 years without turbos and then about 3 years with turbos before too high of compression ultimately caused the pistons to go. If the compression hadn't been 10.3:1 instead of the 8.5:1 the receipt said I got when I had the motor built then maybe the theory that I didn't need an intercooler would have been fine. But in retrospect the intercooler would have helped possibly save the higher compression pistons from melting down due to detonation.

[DVcustomZ]

@klains All that could have been solved with meth injection right after the turbo working as A chemical intercooler have seen a couple ppl run a 76mm w/out intercooler with thatset up

[TWBouska]

thinking about running a TT on the 383 im building for my El Camino, just curious, why no intercooler? im still new to turbos,superchargers, etc, but the elco is a daily driver so ive ruled out putting a big block in it.

[klains]

The original reason for not installing an intercooler was I didn't plan on running the boost very high. I was trying for a mild 600hp street motor with quick spool (little lag) and still decent high end. But as with anyone, I got greedy, trying to test the limits. Bigger Garrett GT turbos turned up to 12psi was too much. Intercoolers are good insurance but I'm not sure an intercooler would have saved the motor. It ran great and intake temps were checked and reasonable at about 10psi.

[Gingerw00ki3]

@TWBouska : Don't use turbo's on a standard stroker setup. usually stroker kits will want to push the compression ratio 10:1+... for a chevy 350, get a forged crank; stock stroke; run a mild cam ground for high rpms; get some good aluminum heads (helps dissipate the heat); and don't be cheap with the turbo components... that ebay crap will blow after a year or two... Tune your car and keep a close eye on the AFR...

[klains]

Both do work. Some guys use a blow off at the turbo and at the plenum to unload the turbo and to unload the pressure at the throttle plate(s). The reason they both work is that they open by the vacuum signal coming off the intake manifold when the throttle plates close. I could probably get by with one but making sure not to bend the throttle plates is very important. The column of air the turbos produce needs somewhere to go when you close the throttle. The symmetrical look is a bonus.

[Gingerw00ki3]

@klains : If you are bending TB plates... you've got something WAY more wrong with your setup than too high of boost... the only thing BOV's and Wastegates are used for is to stop compressor surge... where the TB slams shut, a crap load of air gets jammed into the charge pipping, and forces the turbo to snap backwards... Most K03's or TD04 setups will produce 12lbs of boost, so why the bigger turbos?

[cuteguyinmn]

I'm curious, two blow off valves would work fine but only the weaker of the two would ever open up and exhaust excess pressure. Do you have both working or is one actually non functioning. I understand why you have it. Keeps everything semetrical under the hood and all. By the way looks very nice

[powerbrakeservice]

I like superchargers over turbos, but I'll humble myself, shut up, and take it if it were offered to me. Pretty clean.

[sr20boostjunkie]

Looks clean you may want to think about a fmic ( front mount intercooler) your just shoveing hot air into there you should gain a few h.p from that but it allso will be a bit more laggy if it's just a drag car they have those water to water cooled intercoolers I think ther good for a few runs then u gotta let them cool good luck buddy

[mikewashere01]

nice work love the fabrication and dont let those hatters get you down

[hadeseol]

@klains nice car, what was the total cost of the turbo conversion?

[camaroking250]

Easy build considering how much room is under the hood, I guess most ppl just dont got the balls to do it. Great job dude!!

[maxredgizmo]

Wow really? 12.5's? thats it out of a tt big block? not impressive...

[TWBouska]

@maxredgizmo 350 is a small block. also, considering he doesnt have slicks 12.5 for a DAILY DRIVER with no slicks is pretty damn good.

[gsamuel42]

That's not impressive at all. I could twin turbo my v6 firebird and run quicker than that

[Domman56]

how much would you charge to build up and twin turbo a 305?

[TorcoOil]

Nice, no inter coolers?

[yayitsmegannbby]

get real turbos

[klains]

WOWWWWW (is five cool but six too much?) , I think I should just scrap the car then. Maybe I should buy a Mopar???

Wait, I have a better one.

REALYYYYY! I have a Chevette with a solid fuel rocket that will do the quarter in 4 seconds and make your Mopar shit itself with fear!

I'm such a poser for designing and building my own twin turbo setup, welding up my own frame so I could fit 335 tires and building a car that I have repeatedly taken to the road racing track. Not a drag car dude.

[TURBOMAGNUM]

@klains At 113 mph in the 1/4, it should be in the mid-high 11s, if it could hook up. But like you say, its not set up for the 1/4. I have a turbo 80 GMC truck that ran 12.98@113mph, like yours, its not set up for the track. I set it up for the street.

Dont let these morons who know nothing about drag racing or turbos get you down. People who know better that see this video understand what you are doing.

[MSAMANDAMARIE1]

@klains you know banks made that turbo setup stfu

[MrMaddart]

Damn that car is a DOGGGGG! My little Mopar SB, NA would spit that thing out!

[stylinwiley]

Wow i wounder what that heat will do to the break fluid?

?

[moscowmeetsmiami]

can anybody tell me how to turbo a carburetor? im not saying it cant be done but i just cant find anyone to tell me how

[Fofox92]

where's the audio??

[ozzyvanhalenrox]

I had to turn the sound all the way up

[alexhc09]

That car is beautiful. Getting that body to run 12's is awesome. Good work

[klains]

Ran for 20 minutes at full throttle on a road course multiple times and didn't have any issues. But I agree it does look close.

[PUNCHARD800ftlb]

it looks good but if that was in oz you would melt your brake reservoir

[cv0lv0g0]

lol i was look at this kit for my 327

[klains]

I cut all the pieces, started to weld it and warped the hell out of it.

Then a guy that worked with me, who had been a fabricator/welder for most of his life, finished it. He had to make a mandrel to hammerform it as he welded it. Not something I would try again on my own. I thought that the blowoffs looked pretty awesome myself. I have two Synapse blowoffs on a new stainless plenum that will blow this setup out of the water as far as looks and performance. Stay tuned...

[kewkew2]

OMG!! It lives!! how the FU*& did you make that intake with the 2 blow valves on the side>?!?!?

[RAF92Warhawk]

So no intercooler? Are you using meth injection? Or just no cooling at all? Sorry, I know nothing about domestics. It's unheard of to not use any cooling in the import world.

[peterward85]

life starts at 30 pounds of boost

[RamblinAround]

Awesome turbo set-up, wish I could drop that thing in my studebaker. I think it's cool that you built to handle the curves, not just go fast in a straight line.

[UBERKron]

nice to see blow thru,

[1minitoy]

very clean setup, i like how the bovs are mounted

[billofatlier]

any concern that brake fluid might cook in the master cylinder? looks kinda tight to the exhaust turbo.

[rockyghfdet2000]

Very nice and clean install.

[Sparkinrailz]

For 800 on the torque ; Mickey Thompsons !!!! Awesome Vehicle !!!1

[91cannibal]

ok help me out here. im trying to boost my 89 iroc but its carburated. how exactly does a blow thru work?

[20PsiNow]

@91cannibal GOOGLE!!

[Flapding]

Sweet setup. I had twin TO4B's like yours, but switched to some hybrids. Lots better response and lost no top end. Your car is really nice, and sounds mellow.

[454sskilla]

can someone help me i have a 1993 chevy silverado "my background of my youtube account" and it has 116k miles and i wanna turbo it. it has a 350 in it and i just wanna know what i will have to do to turbo it so please help me. "motors all origanal"

[drjim86]

12.5 on street tires and stock suspension in a 4000lb car is not exactly what I would call disappointing. Nice clean setup.

[jmood162]

super-clean install.

[alamrisa]

not intercooled... still, pretty impressive

[hardy339]

What did you do with the internals, anything special to hold up against the boost?

[grafitti0807]

TT SBC only 12.50's that's dissapointing.

[klains]

Alright guys I get that 12.5 wasn't that good. I decreased the plug gap, upped boost to 10psi and got 621hp and 778ft-lbs of torque. No wonder I couldn't get it to hook with almost 800ft-lbs of torque at 3000rpm. I had a 2.1sec 60-ft time, which killed me. I need some drag radials so I can post a new run but don't know if I'll get to it this year. You should have seen this baby at the Autobahn Country Club road racing track in Joliet,IL this summer though, almost as much fun as the 1320.

[bobaganoushe1]

@klains love your set up i am going blow throught with my nova next year ..

[camaroking250]

@klains Hey im tryin to turbo a camaro, im wondering how did you set up your carb for blow thru, did you follow a guide or what?

Thanks, nice car! and 12.5 is pretty good for a car that you normally drive on the street which isnt set up for drag racing.

[6digitz]

@grafitti0807 There is much more to a car than it's 1/4 mile time. This car was obviously not set up to run at the dragstrip. You noobs need to wake up. The owner built this to be a fun street car, which it obviously is.

[gzoetmulder]

kinda sad for how fast it only went.

[klains]

It's not setup for drag racing.

12 year old street tires, 1.25" solid mount sway bars, low&stiff and absolutely no weight transfer. I had to idle it off the line to not spin the tires to shreds.

[Aeonswins]

@klains bro just sell that thing and buy 5 or 10 turbo hondas and call me tomorrow, no sense in beating dead horses american muscle is gone forever

[clifford0818]

@Aeonswins No man in his right mind would ever trade a tt chevelle for any amount of hondas. Are you crazy?

[Aeonswins]

@clifford0818 sorry my first comment seemed rude, I didnt mean it to be . What I was really tryin to get at is the fact that a honda with this kinda work into would run 10's maybe faster, beautiful car either way

[102rancid]

twin turbos are more efficient then a supercharger because it is not being ran off the crank thus less parasitic drain but it doesnt give some back pressure but for a 350 its nothing you should stroke that bitch out with the turbos

[21April853BC]

NICE! This is like porn but viewing engines!

[GSxxxRGirl]

Agreed.

=)

[kikomonsta13]

Nice choice with the SSQ BOV.

[phxkid]

hey bro nice ass car. I just got a 69 elcamino with a 350 and I am torn....blower or twin t!?  lol how difficult was the install and getting the parts for this set up?

[sk8forlife90]

blower dude, you will get more power out of it. seriously, twin turbo is homo. not good for a good ol american muscle engine. 8 psi! please 8psi is before you even need to get perfomance pistons and other stuff for civic! that's sad

[WOODSON71190]

You can get more power with twin turbos than a supercharger, blowers will kill ur engine quicker. But to be honest, Im most likely gunna put a blower on mine, looks better in the show room.

[dectrone]

your full retard

[sk8forlife90]

really? are you sure? i didn't know i swear

[dectrone]

yes really. twin turbo is just as good as a s/c

[bmx214racer]

Did you make any decisions? Look into ProChargers!!!! kinda like a belt driven turbo..... They make a shit ton more power! and Turbos do make more power than superchargers...

[moneymax3]

Not true at all prochargers are good and better in some cases especially with big blocks, but for a 350 a twin turbo set up with get you a 50% hp increase at 5 psi but with a procharger at 7 psi you only get 40% more hp. Plus if one knows what they are doing they can set up twin turbos for less cash then a procharger.

[bmx214racer]

alrighty... I would agree that twin turbo setup is the way to go for small engines.

[allroundpower]

Depends on which Procharger and which Turbo.

Procharger just released the new F4. Which puts out 3200+ hp at 45psi.

You need a minimum 900hp N/A motor for it!

watch?v=14Dg7mjjx4w

[FalconXE302]

Beautiful car, great setup. One guy commented on your 1/4 time.... obviously with some slicks (I'm assuming you were on streets) you would make much better times.

Also... what is the rear end diff gearing?

Could you share the 60ft and Terminal speed with me?... that would give us a good indication of what it's capable of.

With only 8psi boost, you got plenty left in the "bank" should you ever want to install an intercooler.

Lovely car... and credit to you

[codyschuyler]

nice. my bro's got a 71 chevelle, we are thinking of turboing it.

[wasouski03]

i've never seen anything like it!! it looks really cool

[TURBOMAGNUM]

Dont feel bad about the run. My turbo truck did a 12.98 @ 113mph because I couldnt launch it hard. mainly because its set up for street duty, not track.

with 112mph it should be in the 11's, if you could launch it.

Beautiful car!

[juttin15]

you shouldn't fell bad either my turbo truck only does 18.58 on the 1/4, thats because its a one ton dually with a 12 valve cummins though.

[06C6Z06]

Beautiful car man but 12.50et seems to be really slow for your set up, no offense but what gives?

[klains]

Couldn't get it to launch. The 12.5 was the last of four attempts and the only 12 second run, all the others were high 13's. You can hear my rev limiter kicking in going into second. I think I was so surprised I wasn't spinning the tires I forgot to shift. I truely easied onto the gas, you can tell by watching the stock M3 in the other lane walk away from me off the line. Credit the 1.25" sway bars, low stance, stiff springs and 10 year old street tires for the lack of launch.

[klains]

.6 Compressor (Inlet) /.84 Turbine (Exhaust)

You have to jack up the sound to hear the engine idling or the drag run. Check out my other video of an in car view, that has better sound.

[klains]

I did... used a j-bend exhaust pipe, trimmed one side of the j,rewelded the cut piece onto the short side of the j, slit the pipe on a band saw so just the outer curve of the mandrel bent pipe was left, plasma cut the top, bottom and back, made a custom riser with a radiused inlet to the carb, welded on the bulkhead fittings for the boost lines, welded on the custom blow-off mounts and the inlet pipes. The custom aluminum carb nut on top has an o-ring in it to seal the top at the carb shaft.

[mma850]

who made the carb hat?

[klains]

Just posted twin turbo setup on Ebay