Hi guys,
I will be working on installing microsquirt v3 in my California edition '76 280z stock car which came with EGR/catalytic converter and an exhaust manifold. The car runs fine with the exception of typical lean conditions which gets resolved with a potentiometer pot.
The plan is to do it in 2 stages:
Stage 1 (getting "my feet wet" with learning to tune the car with TS):
Milkfab's 36-1 wheel (crank pulley mounted)
Microsquirt v3 + IAC stepper adapter
LM7 truck ignition coils
Pro Tunerz fuel rail (14mm) intake/throttle body/GM ICV
14point7 spartan 3 v2 wb
keeping stock exhaust + LSU 4.9
high impedance injectors
Stage 2
Headers + Turbo upgrade
In my infinite wisdom I figured I would kill both birds, aka project stages, with one stone - and purchased the Bosch 440cc 'green giants' injectors EV1 (part 0280155968), length 65 mm, Long style. Flow: 43,5 PSI (3 bar) 430cc / min = 41 lb / h. My assumption was to use them on a stock engine, get a turbo installed later, and re-use them. I got a great deal on them and they are authentic Bosch.
After reading the mega manual, now I am concerned about the idle pulse width issues and fighting over enrichment conditions running a stock L6 engine. I spent a lot of time going through this forum looking for anyone running similar injectors on an n/a engine and found that in almost all cases guys are running turbo engines with large injectors (supra injectors are popular).
The stock engine needs 15 lbs/hr or 158cc injectors. Obviously the 440cc ones I got are a major overkill.
Am I over stressing over the issue? Will i be able to tune these injectors for the time being?
Or I should keep on looking for 190-200cc injectors on Stan Weiss's site at http://users.erols.com/srweiss/tableifc.htm ? I found a few leads by cross referencing the part numbers and what rockauto has in stock. A lot of GB reman and BWD ones.
Do you have any recommendations? I'd like to keep 14mm/14mm top/base long, high impedance injectors, preferably Bosch.
Thanks!
Den