I'm headed back to the track next week and trying to run some low 8's, and whittle down my 60ft. Just installed my shift light last night, and its amazing how off these stock tachs are.
My old 302 motor made 268/304 at the wheels, and the HP peaked pretty flat from about 5100-5300 rpms. TQ peaked around 4100 rpms. I have not dynoed my new motor, but all I did was gain a point of compression, port the heads and valve job, and larger cubes (331). Everything else is the same (GT40, Eddy Performer and TFS 1).
My top end is matched pretty well, with everything making power from idlish to 5500 rpms, which showed with the old dyno. I'm sure that with the larger displacement, I brought the power range down some, given that the heads and intake probably don't feed the stroker as well.
QUESTION: With that said, how low do you think I am making peak power? I think I am going to try shifting around 5500 RPMS. I was shifting around 5800 on stock tach, but after seeing the shift light, I think I was probably 6000+.
Thanks in advance!
Joe
My old 302 motor made 268/304 at the wheels, and the HP peaked pretty flat from about 5100-5300 rpms. TQ peaked around 4100 rpms. I have not dynoed my new motor, but all I did was gain a point of compression, port the heads and valve job, and larger cubes (331). Everything else is the same (GT40, Eddy Performer and TFS 1).
My top end is matched pretty well, with everything making power from idlish to 5500 rpms, which showed with the old dyno. I'm sure that with the larger displacement, I brought the power range down some, given that the heads and intake probably don't feed the stroker as well.
QUESTION: With that said, how low do you think I am making peak power? I think I am going to try shifting around 5500 RPMS. I was shifting around 5800 on stock tach, but after seeing the shift light, I think I was probably 6000+.
Thanks in advance!
Joe