ok i dont know if this will work because i've been hearing different things about it. i have a 92 MR2 n/a for those who didnt know.. not like you care.. but eh. anyway we're makin it a 5SFTE and i need supra MKIII injectors but cant find them anywhere. so my friend used to have a turbo crx and ran a 5th injector and was runnin stoich, it was workin for him. i'm just wondering if it will work for me?

 

it all depends. how much fp you are running, what size is the 5th injector, how much boost. everyhtign plays a role you have to just try it and tune it. stay stoich not under boost and make sure it stays rich under boost and doesnt go lean in order to stay away from detonation. try it with the fmu first and if it doesnt keep you rich enough wire up a 5th injector to kick in at WOT.

 

the proper way to control additional injectors is with an AIC like the greddy rubic or the haltec f5

 

we are talking old fashioned and on a budget.... therefore micro switch

 

AKA ghetto =P

 

Go to the junkyard and find a volvo, they have a "cold start" injector, you can use the hardwear but I think you would want a little bit more fuel so you can put a bigger injector..

 

well those cold start valves jsut dump raw fuel in. i ahve volvo so i know it wont be atomized at all if u want to run it only when certian pressure gets meet then u could have it stay n all the tiem and have it interupted by a pressure switch....

 

yea i'm definately poor.. well not so much poor as to having to pay off the MR2, and i dont give a shit if it's 'ghetto' as long as it works right. then later i'll upgrade it to whatever. and so exactly how do i do it ryan

 

I have put on 5th injectors with pressurized switches attached to them, so that they come on after a certain amount of boost. I have switches that I have sold before, but only have 1 now. They are easy to set and also I put on a light with them, just so you know that they are in working order. You can set these from like .5 to 20 psi. they are good and reliable. I might use a 5th and 6th injector setup in the future just to try it.

 

sweet, i appreciate that cuz i'm about to say fuck the supra injectors and run a 5th injector. so now that i know it'll work i'm gonna do that