supercharging 84 vette?
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Joined: Oct 2007
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From: Red Bank New Jersey
supercharging 84 vette?
I have looked around and no one makes supercharger kits for an 84 vette... Is there any kind of supercharger that can be put on this year? Has anyone done it to theres? Just trying to get some ideas
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Joined: Jul 2002
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From: Milwaukee Wi
It can be done.
First off you need to dispose of the stock air cleaner. Then you add two low profile procharger carb bonnets one for each throttle body. Leakage at throttle shaft(s) may occur. Pipe the ducting into a Y which may need to be fabbed up to provide equal boost. That is problematic. That leads to a procharger unit that may be attached to a mounting plate provided by procharger or custom made. I think procharger may have a 350 truck TBI plate that will work. A serpentine belt will need to be located.
You will need a 2 bar MAP sensor. Aftermarket or possibly a typhoon or syclone will work.
The stock ECU will need to be replaced with one that can handle boost dynamicefi.com will provide that.
I have ditched my crossfire induction in total and replaced with a 7.4L TBI unit so that would be an easier application to adapt to.
First off you need to dispose of the stock air cleaner. Then you add two low profile procharger carb bonnets one for each throttle body. Leakage at throttle shaft(s) may occur. Pipe the ducting into a Y which may need to be fabbed up to provide equal boost. That is problematic. That leads to a procharger unit that may be attached to a mounting plate provided by procharger or custom made. I think procharger may have a 350 truck TBI plate that will work. A serpentine belt will need to be located.
You will need a 2 bar MAP sensor. Aftermarket or possibly a typhoon or syclone will work.
The stock ECU will need to be replaced with one that can handle boost dynamicefi.com will provide that.
I have ditched my crossfire induction in total and replaced with a 7.4L TBI unit so that would be an easier application to adapt to.
Pro
Joined: Oct 2005
Posts: 541
Likes: 1
From: Freeport FL
I'm still not sold on boosting stock bottom ends. I've broken a forged piston with boost and so I would never do it with cast ones, which I assume you have.
Compression ratio is also an issue. What's the stock CR on a 84 ? It's pretty easy to hit some large effective CR numbers under boost. I would plug the stock specs into a dynamic CR calculator, and then plug that result into a boost indexed, effective CR calculator.
Just something to think about.
Also, you might want to post this in the C4 FI/N2 section.....
Compression ratio is also an issue. What's the stock CR on a 84 ? It's pretty easy to hit some large effective CR numbers under boost. I would plug the stock specs into a dynamic CR calculator, and then plug that result into a boost indexed, effective CR calculator.
Just something to think about.
Also, you might want to post this in the C4 FI/N2 section.....
Last edited by Droshki; Dec 12, 2008 at 09:34 AM.
Pro
Joined: Jul 2002
Posts: 703
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From: Milwaukee Wi
My manifold is a Holley Projection TBI.
You are right on compression possibly being too high. A large cam may bleed off some dynamic compression. Are not Vette pistons forged?
I am guessing stock CR is 9.0/1.
E85 might be a possibility but as we know it is corrosive.
Procharger has a chart. 9.0/1 static suggests 19 psi boost MAX with intercooler 14 without. 10.0/1 7psi W/O IC and 12 psi with. That is with aluminum heads and 92 octane.
You are right on compression possibly being too high. A large cam may bleed off some dynamic compression. Are not Vette pistons forged?
I am guessing stock CR is 9.0/1.
E85 might be a possibility but as we know it is corrosive.
Procharger has a chart. 9.0/1 static suggests 19 psi boost MAX with intercooler 14 without. 10.0/1 7psi W/O IC and 12 psi with. That is with aluminum heads and 92 octane.
Last edited by Rohn; Dec 15, 2008 at 05:08 PM.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Originally Posted by Droshki
I'm still not sold on boosting stock bottom ends. I've broken a forged piston with boost and so I would never do it with cast ones, which I assume you have.
Originally Posted by Droshki
Compression ratio is also an issue. What's the stock CR on a 84 ?
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