OK guys I TESTED mods today and want your thoughts.

[Water4fire]

Well this is what I got.

RRIC
Riva Vortec with Les's washiers
4inch intake
PPG powerpipe
Riva grate
Hole's filled
Solas 14-19


Take off is just extreme in my mind. MEAN.
I think boost is LOW. 7.3 to 7.5 Dynotune gauge.
I was able to pull 8100RPM's at 72.5 mph. I was really hoping for more. this was with about 1/3 tank of gas.

Before with just RRIC and stock airbox and 14-19 70.5 at 8100
and stock I was 68 at 8000.

Anyway what do ya'll think?

OH yea and I lost my UMI steering today??? I didn't tighten the nut enough and in a turn it pulled wright out. Found everything but the nut.


.

[Vern]

That is about exactly what I got last year with a similar setup ... same rpm, speed, boost, etc ... sounds normal to me.

[Green Hulk]

Boost is about right in the heat at 8100 RPM's

[Shibby1485]

what's the temps down there now? with 65 degree air, i'm running 8.2 psi of boost with the STOCK s/c impeller ... i was pretty shocked myself... but that's with 4" intake for only 100% outside 65 degree air on a dynotune gauge

[Green Hulk]

Shib, we are in the 90 degree range, i suspect Austin is too.

[Kinchyle]

A 14/19 on a stage II RXP ? I thought the stage 2 was like a 15/20

[Sirhc7897]

Those speeds seem right in line for that prop at those rpms but overall it seems low for a ski with a external intercooler...

Maybe that's just me though?

[GPR/STX-15F/RXT]

This are the same rpm's and top end speed numbers that most of our locals stage II RXP'S are running in our mid 80 to 90 deg air.

[Water4fire]

Yes, I was out in a cool 93 today. But I thought I should see 8p.s.i of boost?
I guess not in the Heat?

I will say this much, this thing has some awesome holeshot. It was by far the fastest it has ever felt, but my goal was 75in summer heat.

So what do I do next?




Oh, Jerry! This UMI setup felt awesome. I loved it. I was able to ride standing up better and boy can I take a turn now.



.

[Rendog]

Those speeds seem right in line for that prop at those rpms but overall it seems low for a ski with a external intercooler...

Maybe that's just me though?

Yeah, my thought also. i would try a 15/20 and see what rpm,s your able to pull, then maybe have a repitch done do find the sweet spot!