As many of you know the 460 stock crank engine I built yielded some spectacular power and torque numbers using the new exhaust camshafts. To verify that it all wasnt just in the porting and cp piston I ran the exhaust cam in the 470 stroker motor a few weeks ago and then reinstalled the stock cams back in it for yesterdays runs. Everything was the same including the cam timing and gas that in the tank which was 110 pump gas. I kind of figured the results would be this way. The SAS has lost several Hp from last year. I would atribute it to having wear on the rings and piston from a normal wear and tear plus having all that metal from 2 case failures and one main bearing failure.(thanks winky ) Yes the old wiseco and sleeve wasnt looking the greatest but its a dyno engine and premium parts are never to be . Looks like the dyno shows the high lift exhaust cams are worth 3 hp on this engine with a little extra boost on top end. I would like to see some intake cams that would compliment the exhausts.
Runs 77,78,79 are with the prototype cams . The other 3 are stock.
Prototype exhaust camshaft results.
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Yes look at red,blue, green they start off so rich its off chart and majority of range are full point away from your cam test runs.They also follow the hp curve really close.Actually the 83,84,and 85 Look like a hp curve not a AFR.You have that one oddball AFR from the prototype cams and that one is also the lowest hp of that test.It cannot be a coincidence.Back to the dyno with you.Gotta have as good a AFR with the FX cams as you did with Prototypes.I could go friday.Oh and bring bigger Jets
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