I do not concur:



On a Mustang that statement might be true. On a Dynojet, 1000s and one "modded" 255 will support that on pumpgas and 615whp on racegas before its out of fuel.

Aaron

 

Apples to Oranges.....

 

Better datalog your fuel pressure Aaron, as I guarantee it is falling off and we both made it clear we are talking about numbers on our Mustang Dyno.

 

Dave,

The fuel pressure is definitely at the edge and starting to drop at that level on our dyno. The 615 number it was obvious that it was out of fuel at 31psi. Mine is at 29psi so my pressure out the top is what 72...or at least should be? It was still maintaining 11.5s with no issue, whereas the 615 was going 12.2 or so out the top. EvoScan reports 115% at static flow, the 574 was 97% and the 615 was 113% as I recall. I am not debating the need for a double pumper setup at all in order to make best use of the money spent on injectors. I strongly believe in a second parallel pump to make the fuel system work the best (or a dedicated fuel system and 8 injectors if possible). Thank you for the advice as well

Jrod-

I had originally posted but edited out that the OP hadnt stated whether he was interested in Mustang, DJ, Dynapack, Dynomite, or any other brand of dyno numbers. My intent is not to start a debate since I believe you guys are one of the few people that keep an honest Mustang. However using the word "actual" is heavyhanded I think since "actual" horsepower needs to be calculated by moving 550 lbs per ft per sec.

 

i am happy someone posted this info