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Ditching the Crossfire

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Old Nov 28, 2006 | 11:11 PM
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Default Ditching the Crossfire

Ditching the x-fire, going with a carb, any suggestions for a brand name from previous experiences? I'm looking for good performance and looks. Thanks
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Old Nov 28, 2006 | 11:21 PM
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Why? problems or trying for more power???

Jim
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Old Nov 28, 2006 | 11:40 PM
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Just wanting some power. I figured this was a good area to start at during the rebuild.
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Old Nov 28, 2006 | 11:42 PM
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I did the same with my '82. You will have to swap the fuel pick-up in the tank with an earlier model due to the higher pressure in the 82's pick-up for the EFI.
Check out my restoration link:
http://forums.corvetteforum.com/show....php?t=1465589
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Old Nov 28, 2006 | 11:43 PM
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I seen some nice ones here. I'm sure someone will be around soon with some suggestions.

If I ever did a change I would probably go TPI or pull the motor...keep the original and buy a crate.

Jim
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Old Nov 28, 2006 | 11:47 PM
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Originally Posted by 82MDVette
I did the same with my '82. You will have to swap the fuel pick-up in the tank with an earlier model due to the higher pressure in the 82's pick-up for the EFI.
Check out my restoration link:
http://forums.corvetteforum.com/show....php?t=1465589
Thats the one!!!

Jim
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Old Nov 29, 2006 | 12:50 AM
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I think I'd go forward, not back. You already have almost all of the wiring to hook up any EFI system. For one example, Corvette Fever had a good article a few months back on installing a TBI system using junkyard parts.
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Old Nov 29, 2006 | 07:11 AM
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Originally Posted by I'm Batman
I think I'd go forward, not back. You already have almost all of the wiring to hook up any EFI system. For one example, Corvette Fever had a good article a few months back on installing a TBI system using junkyard parts.
Fix the Crossfire or swap to TPI, don't go backwards. The Crossfire can be made to run. If you are willing to buy a carb and intake, then just buy ported throttle bodies and a ported intake for the Crossfire instead.
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Old Nov 29, 2006 | 08:37 AM
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Originally Posted by markdtn
Fix the Crossfire or swap to TPI, don't go backwards. The Crossfire can be made to run. If you are willing to buy a carb and intake, then just buy ported throttle bodies and a ported intake for the Crossfire instead.
Also change the heads, cam and up grade the computer. Check out turbo city and x-ram websites. Twin Turbo can tell you what computer to buy.
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Old Nov 29, 2006 | 10:51 AM
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Boy, does crossfire missery love company.

If you want a carb go for it, if you want fuel inj. why start with an outdated system? I say do the carb or do a truly up to date inj. system. I am just too old school to do efi right now. I appreciate the simplicity and challenge of tuning a carb without relying on sensors and computers.

To answer your questions:

You mentioned looks, I like the look of the demon carbs. Performance is no better or worse than the other carbs.

Intakes, take your pick but remember you can't go too tall.

You will need a new distributor.

As far as the fuel pickup goes, you can buy a gauge and regulator and run the stock one. A couple years ago my parts guy looked it up in his book and if I remember right the stock pump from 82 put out only 9 psi, which maybe ok for a carb.

Last edited by kevinator80; Nov 29, 2006 at 10:59 AM.
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Old Nov 29, 2006 | 11:11 AM
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What's the bolt pattern on the manifold, maybe you could go with either 2 carbs or throttle bodies (pro-flow?) on the intake for something different
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Old Nov 29, 2006 | 06:08 PM
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I seem to recall the stock '82 fuel pick-up being 15 PSI instead of the 7-9 PSI used for carb motors.

Originally Posted by kevinator80
Boy, does crossfire missery love company.

If you want a carb go for it, if you want fuel inj. why start with an outdated system? I say do the carb or do a truly up to date inj. system. I am just too old school to do efi right now. I appreciate the simplicity and challenge of tuning a carb without relying on sensors and computers.

To answer your questions:

You mentioned looks, I like the look of the demon carbs. Performance is no better or worse than the other carbs.

Intakes, take your pick but remember you can't go too tall.

You will need a new distributor.

As far as the fuel pickup goes, you can buy a gauge and regulator and run the stock one. A couple years ago my parts guy looked it up in his book and if I remember right the stock pump from 82 put out only 9 psi, which maybe ok for a carb.
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Old Nov 29, 2006 | 06:14 PM
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use a regulator, there already is a return line so use it

if you want modern efi, don't go for tpi, perf. gain is minimal for the money spent. The heads and cam are very weak and limit perf.
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Old Nov 29, 2006 | 07:13 PM
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Default X-Ram?

Have you thought about installing an X-Ram intake system instead? I was considering an '82 before I bought my '80 and had decided that I was going to install an X-Ram if I bought an '82.

It sounds like an economical way to get more HP and torque without a major rebuild or engine swap.

Here's the link to their site:
http://www.x-ram.com/
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Old Nov 29, 2006 | 09:05 PM
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After 2 years, I had all I could take trying to wring performance from a Crossfire.

This link has all the parts listed if you want to go Holley 670 and an Edelbrock package. Hood clearance is very tight. As TT says you can use your existing pump, just put a regulator on the return line and adjust to 6 psi.




http://www.crossfire.homeip.net/cfte...e+and+Upgrades
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Old Nov 29, 2006 | 09:26 PM
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Thanks for the suggestions guys. I have some time to think about it since we are getting snowed in here. I like the Holley 670 idea...How tight was the clearance?
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Old Nov 29, 2006 | 09:36 PM
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I've had good luck with an Edlebrock carb on a Ford I had for years. I wish everything on that car would have been as trouble free as that carb. Mine was just chrome, but their new "endurashine" looks pretty slick and it doesn't tarnish or dull.
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Old Nov 29, 2006 | 10:17 PM
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Originally Posted by Mikey82
Thanks for the suggestions guys. I have some time to think about it since we are getting snowed in here. I like the Holley 670 idea...How tight was the clearance?

Darn tight. I had to use the Performer 2101 manfold vs the Performer RPM which produces more HP but is taller. I added a ZEX nitrous plate which cost me 1/2 inch. I used a 2" tall X 6" D aircleaner housing and had to enlarge the hole in my inner hood panel so the aircleaner would fit inside. Without the ZEX plate you may not have to.

Good luck.
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Old Nov 30, 2006 | 12:14 AM
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Originally Posted by Mikey82
Just wanting some power. I figured this was a good area to start at during the rebuild.
How much more? X-Ram claims 50 HP gain average.
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Old Nov 30, 2006 | 10:29 PM
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I had visited the Corvette Connection in Denver asking about what I could do to get more pony's from the L83. The told me about an intake X-Ram. Website www.x-ram.com. I am currently checking the Forum to see if anyone has used this.
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