Refresh 1982 crossfire vette

yes the newer EFI controllers and EFI intakes and direct port injection are superior,
that does not mean the the older system can't be improved or modified, the renegade intake is a much improved intake, as is the OFFY
ofy11.jpg

http://store.summitracing.com/partdetail.asp?autofilter=1&part=OFY-5893&N=700+115&autoview=sku

http://garage.grumpysperformance.com/index.php?threads/crossfire-swap-to-carb.1914/#post-39877
ofy-5903_w.jpg


http://store.summitracing.com/partdetail.asp?part=OFY-5902

http://store.summitracing.com/partdetail.asp?part=OFY-5903


there are new throttle bodys that can be adapted to work with the new controllers
Obviously the condition of the existing system should be considered, it usually pays to carefully inspect the condition of those Crossfire throttle blade shafts that ride right on the aluminum housing,
they can be repaired with pressed in brass bushings after drilling the housing out to fit the bushings, yeah, precision work best done by ,
someone with skills and a mill.
if it was my corvette ID be looking at the newer dual throttle body self learning EFI systems on an offanhauser intake


https://www.jegs.com/i/FITech+Fuel+...VQvbjBx01jgicEAQYASABEgIQJvD_BwE&gclsrc=aw.ds


http://garage.grumpysperformance.co...intake-on-a-383-small-block.13100/#post-68255

http://garage.grumpysperformance.com/index.php?threads/renegade-intake-for-cross-fires.2796/
 
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Guys I'm done with E.B.L. AND TBI. What do I need to convert to carb and manifold and distributor, and how about the trany?
 
what is your budget? what transmission are you looking to work on/with?
what is the rear differential gear ratio?
what horse power are you looking to be dealing with?
what cam duration,compression,
converter stall speed and any other info you can provide?
 
budget, I want it to run good the EBL and TBI RUNS LIKE JUNK so not worried about budget, 700 r4 tranny,standard torque converter, 3:73s. cam 284/292
 
Guys, any ideas on a carb and manifold combo, and what do I do about the distributor that now is computer controlled and do I need to do anything with the tranny?? thanks
 
Ahh . my first car was a 305 crossfire camaro. Remember to keep your upgrades in harmony with each other. High flow heads do nothing on restrictive intake or headers too large of a cam etc.
 
jac1892 can you post pictures of your spark plugs and post your ignition advance curve,
fuel pressure and plenum vacuum readings at different rpms.
and what exactly is not running as expected?
in most cases the cross fire corvettes CAN be tuned to run correctly, and well,
yes you can convert too a carburetor,
but if its not running correctly you should investigate more thoroughly,
lots of 350-383 crossfire corvettes with decent heads and renegade intakes,
and matching cams, decent headers and exhaust systems
are running mid to lower 12 second quarter mile , or a few even high 11 second time slips

http://garage.grumpysperformance.com/index.php?threads/1982-vette-idle-issues.10822/#post-47363

http://garage.grumpysperformance.co...sfire-vette-won-t-run-right.10096/#post-39710
 
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Well I guess there is no alternative for the E.B.L.. If I switch to a carb and carb manifold do I need to get a different distributor?
 
Do you have to pass emissions where you are located? If not, then
you will need an intake manifold and air cleaner combo that is short enough to clear your hood.
The Weiand 8000 is a good choice. Or a ZZ4 or Performer intake (not RPM or Air Gap - too tall).
You need an old school HEI distributor with a vacuum advance canister.
You can get these new now from many sources for about $80.
But now would be a good time to consider switching to the smaller body version to gain extra space/clearance.
And if you have a 700R4 auto transmission, you need an aftermarket way to lock the torque converter.
 
Thanks, Love302Chevy, you are the only one to answer. Is there any advantage to a distributor with a mechanical advance? The e.b.l. just doesn't work for me I put the O.E. ecm with a upgraded chip,back in, so I could drive it . But it wont ideal at a long light without keeping the engine speed up and my foot on the break .
 
Can you advance the timing at idle? It will make better "stronger" idle, and maybe open up the throttle blades a little, i have done that on "old" efi engines after cam swaps to make them idle ok, it may not be the optimal solution but can make it drivable for now.
 
Thanks,I tried advancing the timing it didn't help. I changed the IAC's and messed with the timing no change it idells in drive for a few seconds ok, but, slowly the r.p.m. go down till it stalls.
 
jac1892 said:
Thanks, Love302Chevy, you are the only one to answer. Is there any advantage to a distributor with a mechanical advance? The e.b.l. just doesn't work for me I put the O.E. ecm with a upgraded chip,back in, so I could drive it . But it wont ideal at a long light without keeping the engine speed up and my foot on the break .
Click to expand...
Mechanical advance springs and weights IS old school, but it works and there is no electronics to die and leave you stranded.
There are ignition boxes available where your advance curve is done electronically, but using them, to me, is just like replacing the factory system with nearly the same in an aftermarket system. There are also distributors that have "the box" already built into the distributor itself - no additional box needed.
 
Guys, I put the stock E.C.M. with a Hyper chip back in so we could drive it. It runs pretty good the only thing is , at a light the R.P.M. starts to decrease and you have to have your foot on the break and give it a little gas so it won't stall. Do you have any ideas? thanks
 
jac1892 said:
Guys, I put the stock E.C.M. with a Hyper chip back in so we could drive it. It runs pretty good the only thing is , at a light the R.P.M. starts to decrease and you have to have your foot on the break and give it a little gas so it won't stall. Do you have any ideas? thanks
Click to expand...
Refresh our memory's - what does the setup consist of now?
 
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