high c

i am hooking up a 5th injector in my car to a psi switch, i dont have any idea on what to get the 5th injector out of but i know i want it to be a cold start injector because they have 100% duty sicals. any ideas?

Bobohc3d

any injectors will make it.
it isnt a bad idea but its like the one nozzle nitrous.
you never know if the gas or fule is equally injected in each cylinder. and you dont want to get lean at any stage.
soo better go for a injector upgrade..
if you got a honda go for the 450cc dsm

Semnos

for low boost you can just put any injector on a 12 volt switch and let it inject in the intake charge pipes for right before the thorttle body for better automization.

high c

ya i was only going to run 4 or 5 psi

Bobohc3d

do it

bambooseven

that's too much work for 4-5 psi, buy a FMU or something. I've seen 4 psi run on no fuel management at all.

:edit: but in no way do I support doing such a thing, if you're going to boost your car, why do it half assed I figure? and if you're gonna do it half assed, why work hard doing it?

high c

i ran a turbo in my car for 1 week this summer on no fuel mods and it leaned out at 1psi. my fuel injectors are 200cc, now i added 300 cc injectors and i am still going to do the 5th injector because i have access to a welder and a pipe bender and all the good stuff

Semnos

adding a 5th injectors isn't much work...if you want it to spray all day long just give it 12 volts voila...a injectors module ...that's another story, but extra injector works well though

high c

i got this switch from a comp. called boostsienses or somthing. it works when it sees .5 psi. i am going to uses that to turn on the 5th injector

Semnos

5 psi is too late IMO try getting a swithc to turn it on at like 1-2 psi