sS07NA

Going to throw on a after market intake manifold next week and was wondering if I should go ahead and replace my injectors?? Read somewhere they are maxed out with full bolt ons.. feed back

Jesse

iTrader: (4)

What is the altitude of your location? Sure, stock injectors are maxed at sea level but at 4000ft running a fully bolted L61 on ethanol I'm only at 80% duty cycle. Altitude has a lot of sway.

sS07NA

Less then 400ft average daily driving

chevygirl2006

They won't be maxed out with bolt ons.

sS07NA

https://www.cobaltss.net/forums/tuning-131/le5-injector-duty-cycle-62560/

Jesse

iTrader: (4)

This. 400ft is pushing it. LSJ injectors are a safe, cheap upgrade.

sS07NA

Bought zzp 33#

chevygirl2006

I'm at sea level and I had full bolt ons and a tune and my injectors were at 93%

sS07NA

And thats too high from what I understand

Jesse

iTrader: (4)

Yes, that kind of idc you risk your injectors going static. I am a strong believer in 80% max, but then again I've always been that way, even with finances.

chevygirl2006

Was fine for 5 years. Had no issues with my car but I get what you're saying. Better safe than sorry. My 60s right now are at 89%

southal cobalt

iTrader: (3)

no one really follows that 80% rule. especially not gm. its really more like a guideline that helps injector manufacturers sell the **** out of 1000 cc injectors that cost double that of 80 #ers

my gms2 injectors on my lsj would run over 100% from the factory by 6k rpm. as long as the air to fuel isnt running too lean then your fine