82 performance
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Where do you live? It would help us a lot for you to fill out your profile.
If you live in an emission strict state like CA you may have trouble enhancing the performance without making the car illegal.
Yeah, you, with the 502...that goes for you too.
If you live in an emission strict state like CA you may have trouble enhancing the performance without making the car illegal.
Yeah, you, with the 502...that goes for you too.
Race Director
Joined: Jan 2003
Posts: 15,172
Likes: 86
From: State of Confusion
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Safety Car
Joined: Nov 2005
Posts: 3,533
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Actually...you can do a few things to the CF within reason and make it perform well for what it is. It takes a little know how and patience.
I'm running a 383 CFI motor and it runs rather well at the moment. Of course you probably don't want to spend that much on the motor like I did or do the custom tuning either, but you still can do a good job at a lesser expense. Its all about how fast you wanna go and how deep your pockets are.
Swing on over to the Crossfire forum and learn the secrets of the CFI. http://www.crossfire.homeip.net/
I'm running a 383 CFI motor and it runs rather well at the moment. Of course you probably don't want to spend that much on the motor like I did or do the custom tuning either, but you still can do a good job at a lesser expense. Its all about how fast you wanna go and how deep your pockets are.
Swing on over to the Crossfire forum and learn the secrets of the CFI. http://www.crossfire.homeip.net/
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
You have a lot of options.
You can modify what you have.
You can replace what you have.
You can go small, go big, go carb, go EFI...
...it all depends on budget, and what your goal is.
Any ideas?
You can modify what you have.
You can replace what you have.
You can go small, go big, go carb, go EFI...
...it all depends on budget, and what your goal is.
Any ideas?
Burning Brakes
Joined: Jan 2006
Posts: 1,154
Likes: 1
From: St Augustine FL
Im looking to do the same and I already have the exhaust installed. Im looking for computer friendly head and cam upgrade suggestions. I was told that heads 64cc with 170 runners would work well. I am afriad that 64cc may be too much compression for a stcok computer. I also know that comp cams makes 2 or 3 cams specifficaly for CFI but I am not sure what head/cam combo to go with.
Pro
Joined: Oct 2005
Posts: 658
Likes: 0
From: east rutherford new jersey
i have an 85 fuel pump, and a hyper chip in mine.
supposedly the fuel pump gives it more gas at wot.
i say supposedly because it is my first vette, and have nothing to compare it to, although i believe i have seen mention of it on here before.
supposedly the fuel pump gives it more gas at wot.
i say supposedly because it is my first vette, and have nothing to compare it to, although i believe i have seen mention of it on here before.
Burning Brakes
Joined: Jul 2007
Posts: 1,158
Likes: 277
From: Springfield MA
St. Jude Donor '10-'11-'12, '19, '21
82 performance
Check your local motor vehicle dept. to see what restrictions they have on cars 25 yrs. old and older. I had true duals installed without the cat and wow, what a difference. Also have Flowmaster 40's on this car. If you don't like a lot of noise, skip these. Also have the super chip installed.
Good luck with your car, Firefighter!
Dave
Good luck with your car, Firefighter!
Dave
Race Director
Joined: Jan 2003
Posts: 15,172
Likes: 86
From: State of Confusion
Im looking to do the same and I already have the exhaust installed. Im looking for computer friendly head and cam upgrade suggestions. I was told that heads 64cc with 170 runners would work well. I am afriad that 64cc may be too much compression for a stcok computer. I also know that comp cams makes 2 or 3 cams specifficaly for CFI but I am not sure what head/cam combo to go with.
although the L98 heads don't flow well at high RPM, neither-does a Cross-Fire intake, and while the individual pieces aren't impressive, I believe it was thought that they work-well together .
I think I was leaning-towards CompCams' #252AH-12 with the above cylinder heads before I decided to yank the CFI-entirely, but Marck's site has a wealth of knowledge.
Drifting
Joined: Sep 2003
Posts: 1,325
Likes: 6
From: FRANKLIN GA
You could go for the fancy EFI intakes, the motor swaps, put a carb on it, but......................
The best mod to do to a stock crossfire to get more performance from it is to install 3.73 gears in the rear end. It will give you the most bang for the buck so to say and you can really feel it in the seat of your pants.
Just my $.02
The best mod to do to a stock crossfire to get more performance from it is to install 3.73 gears in the rear end. It will give you the most bang for the buck so to say and you can really feel it in the seat of your pants.
Just my $.02
Le Mans Master
Joined: Jul 2000
Posts: 6,663
Likes: 162
From: columbia city in
i am with eddie
rear gears help a lot .how much do you have ?how hard do you want to work on it .for a 82 ,gears,heads,cam headers ,same as most cars .if you want more than 300 hp the cross-fire is restictive .300hp or less the cross-fire setup works fine .
rear gears help a lot .how much do you have ?how hard do you want to work on it .for a 82 ,gears,heads,cam headers ,same as most cars .if you want more than 300 hp the cross-fire is restictive .300hp or less the cross-fire setup works fine .
Thread Starter
Advanced
Joined: Apr 2007
Posts: 54
Likes: 0
From: Fredonia wisconsin
Firefighter13 say's thanks
Thanks for the info... I have the stk gears 2.87 DANA...
I want to keep the crossfire intact but want to get as much out of it as possible... I no longer have to take through emissions here in wisconsin. Duals sound like a must... chip sounds ok... Can you put a litter better cam in it??? I know I'm limited by the injectors... It sure would be nice to have a kit for the crossfire to deliver some decent fuel... any more tips woud be great
I want to keep the crossfire intact but want to get as much out of it as possible... I no longer have to take through emissions here in wisconsin. Duals sound like a must... chip sounds ok... Can you put a litter better cam in it??? I know I'm limited by the injectors... It sure would be nice to have a kit for the crossfire to deliver some decent fuel... any more tips woud be great
Cruising
Joined: Aug 2007
Posts: 13
Likes: 0
Thanks for the info... I have the stk gears 2.87 DANA...
I want to keep the crossfire intact but want to get as much out of it as possible... I no longer have to take through emissions here in wisconsin. Duals sound like a must... chip sounds ok... Can you put a litter better cam in it??? I know I'm limited by the injectors... It sure would be nice to have a kit for the crossfire to deliver some decent fuel... any more tips woud be great
I want to keep the crossfire intact but want to get as much out of it as possible... I no longer have to take through emissions here in wisconsin. Duals sound like a must... chip sounds ok... Can you put a litter better cam in it??? I know I'm limited by the injectors... It sure would be nice to have a kit for the crossfire to deliver some decent fuel... any more tips woud be great
Comp cams make a couple of cams especially for the crossfire.
Also its a good idea to swop your fuel pump from the standard one to a later 85 c4 one,its a straight foward swop and flows a lot better.
