Boost '82 performance
Thread Starter
1st Gear
Joined: Jan 2008
Posts: 1
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Boost '82 performance
I have an '82 and I like this model year for many reasons. However, I would like to improve the horsepower and torque without sacrificing reliability or gas mileage. I live in CA so it needs to remain smog legal. Any suggestions?
Last edited by CRVTMAN; Jan 10, 2008 at 02:25 PM. Reason: Addl info
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Check out the Crossfire forum...
http://www.crossfire.homeip.net/cftest/startdefault.asp
...but off of the top of my head, head work, cam, and maybe a computer chip ???
Instructor
Joined: Aug 2003
Posts: 238
Likes: 33
From: Olathe KS
Might also want to check out www.x-ram.com . Its an interesting read about the crossfire manifolds. Its pricey, but a manifold and rocker replacement can be done without digging into the engine. And, it has a 30 day money back guarantee if you don't think it delivered what they promised.
I've read old forum posts and PM'd a couple of forum members who bought it. For the most part they say yeah its pricey, but it delivered the performance increase they were looking for.
I have an '82 and am considering this upgrade, combined with exhaust mods. I'm not looking for a radical performance gain, just something on the order of L98 ('80's C4) HP and torque. If I do it, I'll probably take a before and after dyno read to see what it did for me.
If you decide to do it, please drop me a PM and let me know how it goes.
Good luck -- Dave
I've read old forum posts and PM'd a couple of forum members who bought it. For the most part they say yeah its pricey, but it delivered the performance increase they were looking for.
I have an '82 and am considering this upgrade, combined with exhaust mods. I'm not looking for a radical performance gain, just something on the order of L98 ('80's C4) HP and torque. If I do it, I'll probably take a before and after dyno read to see what it did for me.
If you decide to do it, please drop me a PM and let me know how it goes.
Good luck -- Dave
Drifting
Joined: Jul 2007
Posts: 1,712
Likes: 0
From: Tampa FL
If gas mileage is a concern, your options are going to be limited with that motor no matter what you do. However since you have the 700 R4 in there, you still have an edge over the other vettes in the gas mileage department. There are some things you can do for performance that WILL decrease your gas mileage, but it will still be better than the earlier vettes.
Easiest and cheapest way to pick up some extra HP's is the exhaust system - cut out the stock catalytic converter and go to a true dual exhaust. Doesn't cost much and you'll notice a difference immediately without it affecting gas mileage at all. In California you'll still need to have a cat in there, but you can pick up the high-flow performance ones.
Second thing to do (this will affect gas mileage) is change your gear ratios. I think your stock gears are 3.08 or 2.76 (someone can correct me, I know its pretty low though). You could go to 3.70 or even 3.90 and see a noticeable change in performance. It will affect your gas mileage some, but the 700 R4's have the overdrive gear in them so it's not so bad.
Easiest and cheapest way to pick up some extra HP's is the exhaust system - cut out the stock catalytic converter and go to a true dual exhaust. Doesn't cost much and you'll notice a difference immediately without it affecting gas mileage at all. In California you'll still need to have a cat in there, but you can pick up the high-flow performance ones.
Second thing to do (this will affect gas mileage) is change your gear ratios. I think your stock gears are 3.08 or 2.76 (someone can correct me, I know its pretty low though). You could go to 3.70 or even 3.90 and see a noticeable change in performance. It will affect your gas mileage some, but the 700 R4's have the overdrive gear in them so it's not so bad.
