Very weird problem fuel experts inside please.
03-10-2006, 06:17 PM
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Very weird problem fuel experts inside please. Some background info:
My car just got a basic fuel system installed with a Racetronix P&P -6 lines for supply and return, RC 50 lb injectors, Aeromotive boost sensitive rising rate regulator and FAST injector rails.
Now here is where it gets weird.. Under w.o.t. the car is going rich and under part throttle its going very lean. According to the shop they're adding 15-20% more fuel and its still lean on part throttle.
What would cause this happen? This seems pretty strange to me.
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edit* if the regulator was hooked up wrong would this happen??
My car just got a basic fuel system installed with a Racetronix P&P -6 lines for supply and return, RC 50 lb injectors, Aeromotive boost sensitive rising rate regulator and FAST injector rails.
Now here is where it gets weird.. Under w.o.t. the car is going rich and under part throttle its going very lean. According to the shop they're adding 15-20% more fuel and its still lean on part throttle.
What would cause this happen? This seems pretty strange to me.
__________________
edit* if the regulator was hooked up wrong would this happen??
03-10-2006, 09:14 PM
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Originally Posted by Got Me SOM
Some background info:
My car just got a basic fuel system installed with a Racetronix P&P -6 lines for supply and return, RC 50 lb injectors, Aeromotive boost sensitive rising rate regulator and FAST injector rails.
Now here is where it gets weird.. Under w.o.t. the car is going rich and under part throttle its going very lean. According to the shop they're adding 15-20% more fuel and its still lean on part throttle.
What would cause this happen? This seems pretty strange to me.
__________________
edit* if the regulator was hooked up wrong would this happen??
My car just got a basic fuel system installed with a Racetronix P&P -6 lines for supply and return, RC 50 lb injectors, Aeromotive boost sensitive rising rate regulator and FAST injector rails.
Now here is where it gets weird.. Under w.o.t. the car is going rich and under part throttle its going very lean. According to the shop they're adding 15-20% more fuel and its still lean on part throttle.
What would cause this happen? This seems pretty strange to me.
__________________
edit* if the regulator was hooked up wrong would this happen??
Hawk
03-10-2006, 09:48 PM
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I would say the two variables are the injectors & the regulator. The injector flow rate will have to be set correctly + you will have to adjust the tune to compensate for the rising rate regulator which will cause a richening effect. FWIW with my Aeromotive boost reference regulator I run 52# base pressure and rise to appr. 63#. Is there a decent LS1 tuning shop around you? It sounds like something that an experienced LS1 FI tuner would have no problem with.
03-11-2006, 06:44 AM
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if its the regulator do you guys think its hooked up wrong?
There is a shop that the car is at now, I'm going to mention this to them.
I'll ask what the base pressure is on the regulator obviously it can't be 60 at base now.
I'll see if they have the right flow rate too. Its just weird what its doing.
Thanks guys.
There is a shop that the car is at now, I'm going to mention this to them.
I'll ask what the base pressure is on the regulator obviously it can't be 60 at base now.
I'll see if they have the right flow rate too. Its just weird what its doing.
Thanks guys.