Someone i know has a 80somethin camaro with the twin TBIs on it( i think its called cross ram or something) i noticed that the TBI units look exactly like the fiero 4 cly TBI except with a larger bore. does any one know if these will work with a fiero 4 cly? it it does is it worth doing? thanks

I am sure it is possible, but there is really no reason doing it, as the injection is plenty accurate for what the duke has to offer anyway.

If you actualy did get it mounted, and working, then you would have to find some way to tune/control it, also a project in itself, to see almost no benifit.

There's someone here who's using one, as their original went out. But again, it doesn't give any performance boosts. The bottlenecks in the 'duke are elsewhere.

the 4.3's had them too and were they were almost too big for them.
My first hopped up 4.3 had one and made over 250 hp with it but
I felt at that point it was about the right size and any more mods
would require the twin holly unit
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87 Fiero GT 5sp with Vortec L35 4300 Turbocharged V6
Bully Stage 2 clutch
Syclone intake manifold and engine management with Moates adapter and chip burner
Air/water intercooler and Devil's Own progressive water/alky injection
50lb injectors, 3 bar map sensor, Walboro fuel pump and Jabasco Intercooler pump
LM1 wideband on custom manifolds and 3" stainless exhaust system
T31/T04B S4 turbo with a Super T61 in the box
S10 caliper conversion.
Murphy's Constant Matter will be damaged in direct proportion to its value
Murphy's Law of Thermodynamics Things get worse under pressure.
Arthur C. Clarke "Any significantly advanced technology is indistinguishable from magic"

[This message has been edited by vortecfiero (edited 03-21-2007).]

hmm, The 4.3 in my dad's Safari had a 2BBL TB with 2 diff sized injectors. This Crossram he's talking about might be the CrossFire (Known as the CeaseFire at some GM plants) that came on early 80s Vettes and F-Birds. Looked a bit like the old 305 Dual 4BBL Chevy engines from the old road racing days. But, these CrossFire injectors are a single barrel like the Duke's. This might work. Would be neat to see someone pull it off. Not sure of the specs on these tho. Should look first.

CrossFire:


4.3 TB: