cosworth injectors in an LET
i have just bought kit to take my let to over 300 bhp. but a friend says to get a cossie over that you have to change the injectors. i know they are similar engines but is this the truth!! ive got a 4.5 bar fpr so if i can use cossie injectors what colour/ flow rate should i go for.
competition charge cooler
wallace performance evo 5 chipset
courtenay uprated actuator
4.5 bar fuel reg
its 266bhp now (proven) and i havnt fitted the chips, fuel reg and actuator
any help will be greatly appreciated
also you cant run cossie injectors without changing management cos motronic doesnt power low impedence injectors even with ballasts (they still blow in the end)
you still have far to go mod wise before you need to think about injectors
The Evo kits are designed to run on standard LET injectors, any more and you will overfuel and get bore wash - like I did with my phase 3.
Cossie injectors are of very low impedance. You'd risk buring out the drive stage of the ECU.
The Saab reds are right on the edge for Motronic.
withh evo kits u have two options, pumping 4.5 bar through yellows to achieve 426cc or buy new injectors that flow the sane amount at 3 bar
the second option is best as u will not stress out your std injectors by running them close to max injector duty!..