Maxing out 99 injectors?
Thread Starter
TECH Enthusiast
Joined: Jan 2002
Posts: 597
Likes: 0
From: Orange Park, FL
Maxing out 99 injectors? 99 WS6 w/ Pro Yank, SY3500, LS6 Intake, TR224-114, Lid, JBA's, no cats, 12 bolt (3.73's).
Have been chasing KR since cam install. Removed ASP pulley to no avail. Have tried everything I could think of to get rid of KR. Race gas, lowered timing, adjusted PE vs RPM. Nothing worked. Finally found out that ATAP could read injector pulse width. Logged it today to find that my injectors are maxing out in the 130% range when I had PE vs RPM multiplier at 1.774 and when I went back stock (1.2403) they were maxing out around 100%. Not good.
Anyone else have trouble maxing out the stock 26.4 lb injectors with fairly mild mods? It seems to me that they should be good for a few more mods than just cam, intake and exhaust. Obviously this isnt the case. Time to upgrade now.
Have been chasing KR since cam install. Removed ASP pulley to no avail. Have tried everything I could think of to get rid of KR. Race gas, lowered timing, adjusted PE vs RPM. Nothing worked. Finally found out that ATAP could read injector pulse width. Logged it today to find that my injectors are maxing out in the 130% range when I had PE vs RPM multiplier at 1.774 and when I went back stock (1.2403) they were maxing out around 100%. Not good.
Anyone else have trouble maxing out the stock 26.4 lb injectors with fairly mild mods? It seems to me that they should be good for a few more mods than just cam, intake and exhaust. Obviously this isnt the case. Time to upgrade now.
Re: Maxing out 99 injectors? ARE Stg II H/C here, and I am maxing out the stock injectors. I think it has more to do with how high you are spinning it as well.
I spin mine to 6800, and my injectors begin maxing out over 6000 rpm. If had not chosen to spin it so high, I don't think I would have a problem. If you are cammed, I assume that you are doing the same.
I plan on going with a set of 42# (I see FI or stroker in my future) with an inline pump.
Good Luck
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
I spin mine to 6800, and my injectors begin maxing out over 6000 rpm. If had not chosen to spin it so high, I don't think I would have a problem. If you are cammed, I assume that you are doing the same.
I plan on going with a set of 42# (I see FI or stroker in my future) with an inline pump.
Good Luck
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
