Quik Posted September 14, 2008 Report Posted September 14, 2008 tonight i did a WOT run in 3rd and noticed my duty cycle at 82%. i have motron 60s with 58psi with 0 vaccum. this was at 15psi of boost. fuel system is dual 255s -8 feed -6 return. does thsi sound reasonable? also is there any reference to HP that is being made with this much duty cycle on properly setup fuel system? Quote
04CHASE Posted September 14, 2008 Report Posted September 14, 2008 i get mine to about 95% idc when only running boost at 15 psi and also using a bit of meth. id say thats about right, i dont have a big motor only a 370 so with a 4.8 id guess thats a about right, my fuel pressure is 58 psi boost referenced. so at 15 psi boost the pumps are actually making 73-75 psi . Quote
Quik Posted September 14, 2008 Author Report Posted September 14, 2008 i get mine to about 95% idc when only running boost at 15 psi and also using a bit of meth. id say thats about right, i dont have a big motor only a 370 so with a 4.8 id guess thats a about right, my fuel pressure is 58 psi boost referenced. so at 15 psi boost the pumps are actually making 73-75 psi . i didnt hink that the 4.8 would use that kind of duty cycle. but i guess in the case of turbo size of motor doesnt matter all that much. this thing is violent Quote
04CHASE Posted September 14, 2008 Report Posted September 14, 2008 whats your afr? get that thing on a dyno and youll know for sure. Quote
Quik Posted September 14, 2008 Author Report Posted September 14, 2008 whats your afr? get that thing on a dyno and youll know for sure. lean, my scaling for my map is off and didnt know. so i guess all my tables arent right so it wont go into the higher kpa levels Quote
kelleyperformance Posted September 14, 2008 Report Posted September 14, 2008 ya that sounds right, mine are in the 70s and im still 364 with a 112 maggie. i do run in like 11.6-11.8:1 tho... also, my fuel pressure drops about 3-4 psi between 5k-6k rpms Quote
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