Not sure what to think
Couple of things: LS3 topend on a 4" bore doesn't run nearly as well as it does on the 4.065" LS3 bore because of valve shrouding. LS3 heads and a cam that size on an LS3 motor is damn near 500rwhp through an M6 so the cam is fine.
Going to the smaller bore and through the A4 would probably yeild closer to 450rwhp. So you should be trapping around 123-124 in the car tuned. Put the shift point back at 7100... the cam isn't running out of steam there.
1-7/8" headers would also help.
Going to the smaller bore and through the A4 would probably yeild closer to 450rwhp. So you should be trapping around 123-124 in the car tuned. Put the shift point back at 7100... the cam isn't running out of steam there.
1-7/8" headers would also help.
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Joined: Jun 2014
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Couple of things: LS3 topend on a 4" bore doesn't run nearly as well as it does on the 4.065" LS3 bore because of valve shrouding. LS3 heads and a cam that size on an LS3 motor is damn near 500rwhp through an M6 so the cam is fine.
Going to the smaller bore and through the A4 would probably yeild closer to 450rwhp. So you should be trapping around 123-124 in the car tuned. Put the shift point back at 7100... the cam isn't running out of steam there.
1-7/8" headers would also help.
Going to the smaller bore and through the A4 would probably yeild closer to 450rwhp. So you should be trapping around 123-124 in the car tuned. Put the shift point back at 7100... the cam isn't running out of steam there.
1-7/8" headers would also help.
