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We've pushed over 800rwhp 800rwtq. Anything above that, and i'd switch to the 80's. Actually, if you haven"t bought them yet, i'd go to the 80's immediatly.
"hard to tune" meaning at WOT and the upper RPM's? Look at your injector pulse width at top RPM's. It is maxed out around 19ms. Even if you command more, it won't pulse any more than the time that's available in that window. The other thing is what is your fuel pressure reading up top? That will affect your ability to tune upper WOT if your pumps are unable to supply the volume.
Mine were AT 110% wot @ 6700 RPM AT 12.5 LBS OF BOOST. That was 770rwhp.
Fuel system is a in tank 255lph and an external 255lph. I now run 80's but have not been to the dyno since.
"hard to tune" meaning at WOT and the upper RPM's? Look at your injector pulse width at top RPM's. It is maxed out around 19ms. Even if you command more, it won't pulse any more than the time that's available in that window. The other thing is what is your fuel pressure reading up top? That will affect your ability to tune upper WOT if your pumps are unable to supply the volume.
Fuel pressure stays at 60 all the way up top. yes its at 19ms so a set of 80lb are what might be needed.
Last edited by denscor; Sep 14, 2009 at 06:42 PM.
Reason: spelling
I think we are just about the cheapest around. We typically stock 5 or 10 sets of each. If you need a set, I'll hook you up.. If you get a set in the month of Sept, ill sell you a set for 369.00 SHIPPED. These are the Mototron (Siemens Deka) 80lb injectors with the EV1/Minitimer connector, and long body design.
That is a serious serious hook up deal.
Just call in to the shop, and tell them that I ok'd it, and they will get them out for you.
Originally Posted by denscor
Fuel pressure stays at 60 all the way up top. yes its at 19ms so a set of 80lb are what might be needed.
I think we are just about the cheapest around. We typically stock 5 or 10 sets of each. If you need a set, I'll hook you up.. If you get a set in the month of Sept, ill sell you a set for 369.00 SHIPPED. These are the Mototron (Siemens Deka) 80lb injectors with the EV1/Minitimer connector, and long body design.
That is a serious serious hook up deal.
Just call in to the shop, and tell them that I ok'd it, and they will get them out for you.
I have a ls7 intake with the adaptors to use the ls1 injectors is this what I need?
My build probably makes 770rwhp @ 13psi w/ a 70/30 water to meth spray and I'm maxing out the mototron 60lbers that are in the car. I have the 80s to put in as well I need to vacuum reference the regulator on my return style fuel system (A&A).