jdnca1

Just Dyno'd the 632 with Schubeck Radius lifters yesterday and was plesantly suprised by the results. I left everything as it was with the motor, put in the same duration cam, installed the same, etc. The only variable changed was I took .045 lift out of the cam. I picked up about 15 ft/# of TQ and about 10hp down low (5000) and lost about 10-20Hp on top. Probably due to a little less lift. What amazed me is we did not have to work at all to find the power. Now we'll just hope these things last. Here are the results;

RPM TQ HP
4800 815 741
4900 818 763
5000 820 780
5100 819 795
5200 812 804
5300 800 804
5400 790 808
5500 774 810
5600 769 820
5700 755 825
5800 742 832
5900 738 840
6000 734 850
6100 733 852
6200 725 855
6300 717 860
6400 712 867
6500 706 874
6600 690 877

wannabe

Blown motor or NA?

Is this a p[leasure or Racing motor, I think racing due to high rpm?

Wannabe

Tantrum

What is the target RPM on this boat. The torque seems to drop off pretty quick after 5100.
800 HP

Ike

Keep us posted on how they hold up, I was thinking about putting a set in when i do mine. Thanks, Ike.

jdnca1

NA motor. Racing engine, pleasure boat... Most of the time.... I'll turn 59-6100 Natural....6700 on the squeeze.