bilt357mag

I am turbocharging my '85 4kq with an engine from an '88 5k (MC2) using the stock 4kq CIS-E. My question is whether the fuel injectors between the 4k and 5k have different flow rates, and if so, which injectors flow more. The numbers on the Bosch injectors are 0 437 502 023 for the 4kq and 0 437 502 032 for the 5k. I would prefer to use the higher-flowing injectors if possible. Any input? Thanks.

EuroTrasher

I'd imagine the turbo injectors wuold flow more. Unless there's a noticable difference (visually), i can see no other reason for differing part #s, and more air in the engine means you need more fuel to run with it. Good luck

Cdn Blue Coupe

I'm basing this on theory as you need to keep a stociatric mixture. So anything that would increas the fuel for the same amount of air will cause a problem.

I'm curious a to what the others say.

EuroTrasher

My roommate has a supra, & in order to upgrade anything relative to fuel flow, they need a Lexus air sensor, but not much else

JaredhCGT

fuel.... but a supplementary fuels injector system would cause less headaches. check out 034efi.... not a bad price... and if you check out featured rides tehre is a cgt running almost exactly what you are talking abour.