the initial #s are in
05-31-2007 | 11:04 AM
#91
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From: Spicewood, Texas USA
I made a lot of changes so there's no way to really say what made the difference. I lowered the compression from 9.5 to 8.5, had a custom cam ground and of course the head work. I also ported the throttle body quite a bit. Before the throttle body mods it made just slightly more HP than before. So, it would appear the cam and head work offset the compression reduction. Then I was able to increase the boost to get back to where I was, compression wise.
05-31-2007 | 11:07 AM
#92
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From: Spicewood, Texas USA
That was with the 29 P5X. But, I didn't even look at the tach or do a data log. I know, sounds crazy but there was a lot of debris in the lake, so that's all I was watching for. Just made a short blast and looked at the GPS to see what it read afterwards. I should get some good numbers this week.
! Sounds like there's plenty left. What prop were you running? See you at the Jamboree!
05-31-2007 | 12:33 PM
#94
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From: Spicewood, Texas USA
That's because it is a GPS speedo with recall. Just flip a switch and it shows the maximum speed you hit. A lot easier to take a picture of that than when you are running 90+MPH.
05-31-2007 | 01:14 PM
#95
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From: MT. JULIET, TN.
?
06-01-2007 | 09:43 AM
#100
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From: Spicewood, Texas USA
I did a little more testing yesterday and got some data. It ran 92.2 right at 6000 RPM with the 29 P5X. Smooth water, 90 degree temp, 2 people, full fuel. I think I'm going to order a 32 B1 and try it. I'd like to get the rpm to around 5800.
