Quote:
Originally Posted by KingLT1
Right but we have to consider his elevation. a 427 would only need 15-16psi to make 1000 instead of the 22psi he was pushing. 427 @ 15-16psi with the right cam might actually be more useable than his SBE with the 2650 being way overspun and making 980wtq @ 2800 rpm. He was making 21-22psi @ over 7k DA. That would probably be 25+ at sea level. Hence why the thrust bearing let go.
Normally I wouldn't advise going bigger cubes but in this case it might be the way to go since he was maxing out the Eddie 2650 at his elevation. He really needs a bigger supercharger for that altitude or a bigger motor and less boost. Jm2c...
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The additional cubic inches is the way to go up here as I found out with my Sonny's 740 engine which was much more consistent than the smaller engines I competed against and here it makes sense because as King says I can put a 3-in pulley back on the supercharger. Slow it down to say 17,000 RPMs, shift the motor at say 6500 RPMs and make the same or more power plus having the primary benefit of a built bottom end
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
Last edited by JSH; 10-31-2023 at 11:01 AM.
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