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.

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.

Anyone else notice that on all the pics of the gauges, it seems only the speedo is working? Weird...

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.

Read all of the posts. I called him out on that! I thought I busted him but he's smarter than me after all!

Didn't know that...cool feature.

Only Appleton can run 127mph with his boat off......at half throttle.:D

jima97,
Are you "up to speed now":rolleyes: ?
Steve

He's sandbagging.......it's actually 172......:rolleyes:
Steve

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.