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Old Jun 24, 2010 | 01:05 AM
  #39 (permalink)  
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Infinite
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Joined: Feb 2008
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From: Atlanta, GA
Default Re: Turbo kit mockup update

Yea, his FIC info is spot on. He's actually the one that led me towards the FIC for engine management. Turbos will work on any motor. The problem we have is that most traditional turbo setups are mounted on manifolds very near to the motor (ft or less away) to take advantage of the high heat from the exhaust gasses (higher egt's = quicker spool, to a point) but if you've looked under your hood, youd see theres really 0 room for a simple turbo kit such as you'd normally see.

Rear mounts have become popular for such problems as we have. The main issue is ground clearance with our cars, especially if you're lowered.

On the drivers side rear of the car, just in front of the subframe theres this nice little boxed out area that is the perfect size for a turbo (where the resonator resides on srt's) The issue is intercooler piping. Minimum size needs to be around 2.5" to meet airflow veolcity and quantity. Factory ground clearance is somewhere in the 5" range IIRC so you can see that with a stock car its tight already. If you look at my car, my swaybar is 3" off the ground, Theres no way I could swing that.


What I'm tossing around right now is this... I can do a rear mount, I would just have the exhaust merge into one way sooner (right as it clears the transmission) that way I could run exhaust piping down one side of the tunnel and intercooler piping down the other side, which would keep it tucked away safe and sound. The disadvantage, even with ceramic coating and wrapping the exhaust before the turbo (and the turbine housing) is that it loses heat and velocity, which makes the turbo laggier than normal, not to mention the 10ft or so of intercooler piping that has to be run.

Or. I can relocate the batt. to the trunk and move the PCM, BCM, and RCM inside the car, effectively clearing out the entire passenger side from shock tower - firewall. I've alrady measured and theres enough room for almost any turbo you'd want to run, save for a gt42r or bigger. Plus the intercooler piping would be less than 24" in length, which would eliminate alot of the turbo lag you'd normally see. Intercooler would be air-water, so other than running 2 hoses to the front of the car, the heat exchanger and associated parts, its a more power friendly setup.

So its either go the easier route and make a little less power a little later in the powerband, or do it the more common way and have a beast of a street car. My gt37 would see 10psi by 3k which would basically mean 375ish at the wheels or so till redline.
 
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