Turbo kit thread

^^^ yeah, last thing I want it for my ls to be out another month.
 
Well it shouldn't anytime soon, but I was thinking about buying a spare engine, putting some money into it and evetually being able to increase the boost a little more.
 
The max the turbo can do or what it will be set at on the ls?
 
turbos can make tons of boost...the internals of the engine and how good the cooling system is what limits how much boost you run.
 
BlackLS06 said:
turbos can make tons of boost...the internals of the engine and how good the cooling system is what limits how much boost you run.
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And what the transmission can handle. That could very well be the weak point here.
 
Yeah you can get shift kits and torque converters that are built for lots of power so thats not a problem.

At least we have a mustang tranny and not a jag.
 
the max fot the turbo itself, should be good for over 20 psi, however im sure it will only be tuned between 5-8 psi.
 
I figured the car would handle around 8 psi, i just wasnt sure of what type of boost the turbo used on this car would push. 20+ psi is pretty insane though
 
It depends entirely on the turbos size. A small frame t2 such as a gt28 will have a great low end and run out of steam at the top end and the boost limitations are more evident. At a certain point in raising boost you will actually lose power because you are past the point of compressor efficiency. The compressor housing size is a deciding factor.

For example when I went from a gt2871r at 20 lbs making a little over 420 at the wheels to a Precision 6262 billet wheel at 30 plus psi I made 664 to the wheels. I gained over 240 whp, my lag increased by 2k rpms or so and was a handful even with my Boost by Gear settings. I switched back to my old setup .

I laugh at the Subarus and VW GTI guys who turn their boost up to 30 on a stock turbo and wonder why their car is slower.
 
ChrisLS8 said:
It depends entirely on the turbos size. A small frame t2 such as a gt28 will have a great low end and run out of steam at the top end and the boost limitations are more evident. At a certain point in raising boost you will actually lose power because you are past the point of compressor efficiency. The compressor housing size is a deciding factor.

For example when I went from a gt2871r at 20 lbs making a little over 420 at the wheels to a Precision 6262 billet wheel at 30 plus psi I made 664 to the wheels. I gained over 240 whp, my lag increased by 2k rpms or so and was a handful even with my Boost by Gear settings. I switched back to my old setup .

I laugh at the Subarus and VW GTI guys who turn their boost up to 30 on a stock turbo and wonder why their car is slower.
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tell me about it, i just got done helping a friend at work swap out his EVO snail for a Forced Performance Green turbo, and the shop that was tuning it got it set up to 24 PSI, they did a few runs at 26 PSI but it only made an average of 5hp more because of the extra heat it was creating, it looks like his next step is a bigger intercooler because he is pretty much at the max of what it can handle for a stock FMIC. after they put it back down to 24, they put some ice water in a sprayer and was soaking the hell out of it during a couple of pulls and it made over 30 hp more just from cooling the air a little more. the car actually has a FMIC sprayer from the factory but it just sprays washer fluid out and that sh!t is already hot as hell from being under the hood.
 
^^^ although I know a guy here in my area John shepard runs about 40 pounds or so in his talon and it does sub 8 second passes in the quarter.

But like you said just because you have a huge snail doesn't mean a whole lot if the rest of the car is not set up for it.
 
Turbo 2.3

De-marko said:
Cammer, what was your set-up on your Mustang and what year?
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The car in question started life as a '79 Mustang Pace Car. It came from the factory with a carbureted 2.3. I started tinkering with it, by first installing a header, and modifying the factory intake manifold to be able to bolt on a fabricated adapter and a side-draught 45 DCOE Weber. Then a Reed cam and roller followers, and MSD & Mallory ignition components

One of the advantages of living in the 'Motor City' is the ease of contact with the guys in the engineering sections of the car companies. I'd met one such individual, who was part of the team creating the new EFI package to replace the carb'd version of the 2.3. SVO was very involved---you'll remember the early SVO Mustang. Ultimately, he 'liberated' a complete set of 'XE' components that had been part of an 'engineering exercise'. He showed up one afternoon with a trunk-full of 'stuff' and I did a swap exercise and wrote-up the result for Super Ford Magazine. As is typical of parts so-sourced, the identifications consisted of a small swipe of blue lay-out dye with the XE number scratched in. So I can't tell you the details of the Garrett turbo, but the result was more than a match for any Corvette I ever encountered. Particularly when you factor-in the also-installed NOS components.

KS
 
Oh Cool, the 2.3 is good little engine. Any horsepower estimates?

A friend of mine had Merkur XR4Ti and my Brother had a black '84 SVO for a short time till he lunched the head gasket...that was the end of that car. :rolleyes:
 
I never dyno'd it, but the 'vettes I played with all had HP ratings in the mid-300s. It was a DD and although I didn't granny it, I was never hard on it just for the sake of creating abuse. The clutch and trans worked all right, but I did do a swap to an 8" axle with a 4.62 gear-set in it.

KS
 
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