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      11-14-2013, 02:47 AM   #1108
Beedub
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Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

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Quote:
Originally Posted by ZStig View Post
fuel pump install done, car pulls strong to redline. Either my boost gauge connector is leaking, or my belt is slipping after 6000rpm. Not going past 7-8psi. Doesn't feel like it, but it seems like after 6000rpm the pressure doesn't climb on the gauge, but then again early boost staying level will still feel strong on the butt dyno as you go from 6k to 8krpm

I'm really hoping its NOT belt slip, and that its a gauge issue. There is a small crack in the rubber on the connector, so I'll get a new one and re-test. I have a gut feeling I don't have enough tension from the hydraulic tensioner, and will either have to move to a mechanical tensioner or a big crank pulley

Still, the car definitely feels strong. Stronger than its ever been. Wants to rip through the tires in 2nd gear from 5000rpm to redline. The diff is pulling the car left and right with the traction control going crazy. I didn't realize that near the top of 4th gear is a pretty damn high speed
tom has this car been tuned yet??

great news on the FP install :-) well done for getting in and having ago yourself!!!
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