Just out of curiousity, has anyone taken their TPI setup and switched to a cc quad setup (A full switch using a cc quad ecm by splicing the harness amoung everything else)?
If one was to have the Quad ECM, wiring harness ends for the Quad ECM/pinouts, an HEI cc distributor, a carb manifold, and the necc. fuel regulator (plus odds and ends, like bracket changes etc etc) --- this seems the ideal way to switch to a daily-driven/no brainer carb setup so you can retain knock sensors, computer-specific control; ie all the ammenities of the stock cc carb setup; and have a unrestricted intake for hp for much less money then mini-ram/super-ram/etc etc (Comparatively). This is all assuming one could get the cc quad components cheaply).
I always wondered if this had been done at all or if everyone just goes non-cc carb setup for switches... Overall, is this good idea? Bad idea? Uneccessary? In any case, thanks in advance for your thoughts.



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1987 Trans am GTA
5.7 liter TPI / 700R4
Aus 9-bolt + 3.70 gear

 

It would be easier and probably better in the long run to just go with a non CC setup.

 

I'm also wondering why you would do this. You can do quite a bit to improve the TPI without spending much money (port plenum & intake, home-made adjustable FPR), and the money you do have to spend for runners, chip, etc., would be money not spent on the CC carb equipment.

Many more people have converted from CC carb to TPI. That should tell you something.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2200 stall TC. Ported World 305 heads, Crane PowerMax cam. ZZ4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster. 2.93 limited slip, Spohn SFCs. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

Dont go to computer controlled carb - it sux. Take my advice, i have this setup. If you want to go to carbed, go to non computer controlled. Even do non emissions if possible.

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1983 Firebird
TH700R4 Auto
Small Block 400
LG4 ECM, Intake, Carb, Distributor, etc.
Soon to be non-computer.
Clarion Head Unit 45X4
2 Pioneer 400W 12" Subs
Third Gen Performance
"A four cylinder is half an engine."
"Ponies can run, but birds can fly..."

 

Thanks for the input on that curiousity of mine. It seems the general opinion is to go non-cc carb period (if one was to move to a carb set-up from FI). This brings up some more questions on my end though... Assuming that all one had, carb wise, was a cc Quadrajet -- could you use that in a non-cc application? I know only the most basic info about carbs in general, so forgive me if this sounds elementary. I believe the cc-quad uses electronic choke and one computer controlled device; does this correct at all? Thanks again.



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1987 Trans am GTA
5.7 liter TPI / 700R4
Aus 9-bolt + 3.70 gear

 

The feedback Q-jet can't be used without computer control. Without the computer controlling the mixture solenoid, the primaries will be rich all the time.