Guido

Guido

another

Guido

last one

Dan8289gta

WOW

Timz2882

iTrader: (1)

tease

83 Crossfire TA

iTrader: (2)

Are you scared?

Z28ricer

iTrader: (2)

You know, its bad when you need chains to hold your turbo up.

daverr

iTrader: (1)

why not go twin turbo?

JayB

I dont think I could fit two of those into my engine bay!

mw66nova

iTrader: (13)

hey, just to let you know, if you didn't already notice, your intake manifold is on backwards....









i'm guessing a big intercooler in the passenger side seat?

Kenwood

iTrader: (1)

HMMMM not saying anything..but your getting warmer...its backwards on purpose..

Why not twins..LOL... because that block would explode with 2 of those... DONT NEED TWINS....He will be good for at least 8's with that..WTF would he want even more... IF you get below 8.50 then you have to have an SFI spec chassis...which means tearing everything out and starting over for him..


I dont see the fascination with twins anyway... with the way the newer turbos spool up>>>and the fact that they make them the diameter of a sewer lid now...there is no need for twins..

Guido

Wood is exactly right. I built this thing to race not to drive on the street. If I built it for the street, I might put twins on it for more low end fun but this thing should make enough power to push me into the 8's.

And I have a water intercooler core that is 6" x 12 1/2" x 13" that I need to get some aluminum for to make the end tanks with.

Im going to be finish welding a bracket to hold the turbo this weekend and starting on the headers. Im excited!

MrDude_1

daverr:
twins only apply if you have a small displacement V8 that isnt very powerful N/A.... otherwise, a large single is better....


hmmm.. i donno.. seems obvious to me that the compressor housing is going to aim the boost into the cabin, where a air/water intercooler of some sort would cool the air and send it back thru the firewall to the now backwards intake.




of course, thats just a guess based off all the pics shown.... oh, and its how all the other LS1 fbodys do it...

Guido

It wasnt invented by the LS1 crowd. The mustang people started doing it first. It just makes sense. Its going into the passenger compartment to an intercooler where the passenger seat is.

The only thing in the way on the LS1 is the oil pressure sender and thats not a big priority for me anyway. Ill just tap in with a mechanical gauge anyway. Ive got that on my daily driver and it works just fine. lol

Dewey316

Not getting into this fight.... As I see both sides of this. But, in Corky Bells book, he states that for engines with displacement above 5 liters, twins is more desirable.... I am at work, so I can't quote the exact text.

Guido

Frankly, thats crap.

Tell that to the people that are out there in their 10.5 tire mustangs with 347 inches running a single turbo and running mid to low 7's in the quarter.

Obviously, two will make more power than one but to say that one cannot feed a V8 is just flat wrong and has been proven time and again

paul_huryk

Even though twins are more piping, its probably a lot easier getting two 3" pipes bent to fit around stuff than it is for a single 4".

mw66nova

iTrader: (13)

Jim Filipowski went 7.91 at 188ish earlier this year with a 101mm single turbo and 360 cubes of sbc and a carb. oh, this was in a stock suspension 93 camaro with bfg drag radials.

MrDude_1

you dont have to quote it....i have that book.. and i read it a few times. i even recall where he goes into it after talking about the Porsche

i'll just say this:

Corky is a very opinionated individual.... lol


i'll leave it at that.

MrDude_1

you've never tried it... have you? lol (not being mean, but our cars were designed with the exhaust as a afterthought.)

Kenwood

iTrader: (1)

Not to mention that turbos now have come a long way since that book was written...Some of the stuff Ive seen releassed in the past couple of years is just nuts.

single 4" tubing is not hard to route...I routed mine fine...guido had his routed fine... and if you need to go above 4" thats what they make OVALIZED tubing for...

Guido

twins are still better guys. EVERYONE knows that.

:P

Kenwood

iTrader: (1)

OH>>> I see... Is Twins whats hot on the street now.. Is Twins where its at... well guess what..Ive got some bad news....Im shutting the studio down.. Unless you go up to queens and get me some cambodian breast milk..

Guido

100% pure cambodian. You did it. You got me my breat milk.

Breeeeaaaaaaaaast Milk. You make my daaAAAAAAAAAAAAaaayyy

83 Crossfire TA

iTrader: (2)

That’s being very kind.

I’m not sure what the issue is… If you’re building something like this just cut everything up and put things where you need them. It’s not like it has to be streetable.

As far as single vs twins… a larger turbo tends to be more efficient, so as long as you can get one big enough for the application that will spool sufficiently quickly…

MrDude_1

ahhh... thats where the hardpart comes in.

sometimes they have to be streetable.

Z28ricer

iTrader: (2)

I think by "like this" he means a turbo thats 1/2 the size of your engine block, and an intercooler where your passenger would normally be.

Guido

Still need to add some bracing to the main plate, but thats prety much how its going to be.

1 5/8" diameter chromoly vertically, 1" piece horizontally, and a 3/8" thick steel plate for the mount.

paul_huryk

I wasn't referring to the exhaust - I was talking about running pipe for the turbos under the hood.

Kenwood

iTrader: (1)

My 4" downpipe fits easily under the hood and in the car...In fact I have room to go with a bigger diameter downpipe if necessary... besides with twin 3" where on the DS can you go with that...with all the crap thats in the way on the DS Id just as soon route 1 4" pipe..

Guido

Some more progress this weekend

91GTABird

Ive read throughout this whole thing waiting on an answer.

Can someone please tell me why guidos intake is on backwards?

grover85

iTrader: (1)

I will take a stab at that. He put it on backwards cause he is probably going to run a intercooler on the inside of the car. So if you look how the turbo is pointed the pipeing will go through the firewall through the intercooler and into the intake. So with the intake backwards it accually makes for less intercooler piping.

Kenwood

iTrader: (1)

No actually the TB is pointing backwards because Guido wanted to compete in Front wheel drive class at the NOPI nats...the rules state must be front wheel drive and must have forward facing throttle body.. soooo he is turing the intake and the seats around and will be driving it backwards....

Guido

LMAO @ Wood!!

grover is right. The intercooler is going to be where the passenger seat was located.

D's89IROCZ

WOW ...that IS a big turbo


I am a newb at turbo's .....but I started off right ....went and got one :P . I read that book too. when I llok at the BSS kit I got ( application specific ) I think the sinlge is the way to go for me . I am running the TPI with mine so it negates the need for a turbo for the bottom end .....

I still have NO clue what I am going to do for my down pipe and wastegate emmissions ( I need the perfectly legal and streetable setup )

Very nice man ! I keep bumping into your name when I do searches

1bad91Z

iTrader: (1)

Damn Guido, I thought you sold that pile! J/k


And to all you single turbo non-believers:

My buddy just went 9.13 in the 1/4 with ONE single T-76

('90 mustang /351 windsor/ 850 DP/ T-76 / water injection (no intercooler) And we could only get it to 12.0:1 AFR watching the LM-1. I think I can get it into the 8's if I can lean it out to 12.8:1 or so.

That T-88 looks WAY bigger than my bud's turbo! Can't wait to see if complete!

Free Bird

iTrader: (1)

where's the radiator going?

CRZYTRN-92Z28

Yah ive been waiting to see the result of this little project. Defenitly gonna scream.

vejatabul

bigger turbo

mw66nova

iTrader: (13)

is that a 101mm or a 106?

1bad91Z

iTrader: (1)

Shiiaaat, I could spool that with my 5 hp briggs & stratton!

Damn, that looks like the Turbo's I've seen on 18 wheelers!

83 Crossfire TA

iTrader: (2)

No, most large diesels use fairly small turbos... they don't have to move that much air since they are mostly tuned for torque at extreme low end... most aren't even bigger then 60mm inducers

MrDude_1

i donno about that... you should see the size of some of the holset turbos ive seen.. lol

83 Crossfire TA

iTrader: (2)

I’ve got a holset HX40/H1E off of a freightliner wrecker (you know, the ones that they use to tow busses, loaded semis...), and an HX50 and HX55 off of an 11L and 14L Cummins stationary diesel… all are relatively small, physically. The 40 is about the size of something in the T60 range, the 50 and 55 are about the same as something in the T76-t88 range.

In most cases the HX50 and larger are from stationary diesels or serious heavy equipment, and I’m guessing that the really big holsets you’ve seen were like HT60’s or HX80 or 88’s (which are somewhere in the 80lb range)

Guido

The turbo i have was originally designed for deisel truck service and it had a 65mm inducer I believe. The wheel in it now is an 88mm inducer 116mm exducer. Its a hos. LOL