Thread: Only 77mph
07-06-2010, 08:24 AM #1
I'm installing my new ET 68-140EXTREME with 60lb injectors walbro fuel pump fuel regulator Les coke 8650 ECU 15/22r open loop Riva ride plate pump wedge ,4" air filter
Pump cone and 82 ring head porting riva valve train upgrade trottle body 61mm xs intercooler.The fuel ratio is 11,8-12,3 (full throttle).
The boost pressure is 14,5psi (7920rpm)
The water in the sea is very hot 30'celcius.
I use to the pump cone the two bigger spacers.
The problem is that i see on GPS only 77MPH at 7900rpm.
I thing i should be at the 82MPH minimum.
Do you guys imagine the problem?
07-06-2010, 08:32 AM #2
Remove the pump cone spacers and open up the ventury to 83-84mm or install a 15/20 Solas, you are overproped for salt water and hot weather.
07-06-2010, 08:43 AM #3
07-06-2010, 11:24 AM #4
07-06-2010, 02:12 PM #5
Ok thank you vern i will try to remove the spacers first and after that the nozzel.
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