Originally Posted by cobraleo' post='805463

First post on this forum, I'd like to bring my E39 M5 to do some runs (dynoed @ 370whp a few mods ago) but my clutch is slipping in that car.

I posted this response on bimmerforums, I'll post it here too:

David, I think something is up if that M5 is only making 430whp.

Originally Posted by joe@raceprecision' post='805541' date='Mar 2 2009, 03:56 PM

http://www.youtube.com/watch?v=WWgLuAXRuOg.



All the RPi Stage 1 and Stage 2 M5s are dynoed on a Dyno Dynamics which reads lower than a Dyno Jet. For comparison, 432 rwhp equates ~488 rwhp on a Dyno Jet.

Originally Posted by PedM5' post='805534' date='Mar 2 2009, 11:49 AM

It's an ESPRIT not an ELISE! lol. I don't want a head start, I'd rather just do 3rd gear runs even if it's at a lower RPM. I've got 6,000 miles on the car and it has the original tires from 2003 on there. Shitty dunlops to begin with, add being hard and old and I have a disaster waiting to happen.

Originally Posted by MPower82' post='805499

First post on this forum, I'd like to bring my E39 M5 to do some runs (dynoed @ 370whp a few mods ago) but my clutch is slipping in that car.

I posted this response on bimmerforums, I'll post it here too:

David, I think something is up if that M5 is only making 430whp. I was talking to Leo earlier, I might be down on power. In retrospect I should've gone to the dyno! If you check out the video of our run last time me and Leo ran (keeping in mind he was making 10whp more, significantly more TQ and is in a lighter car than the M5) it seems that I've got some power missing.

http://www.youtube.com/watch?v=4Jr8EyQyaF4

I've had issues with my throttle cable having slack and not getting full throttle as well as CEL due to the cats being taken off. I had a CEL during the runs, but it didn't feel very sluggish so I ran anyway. (Last time I cleared CEL it showed 48 cat efficiency codes, ECU cuts boost in an attempt to limit damage)

You can see in the other perspective vids the M5 gets a jump everytime because of my wheel spin, I'd rather lose the race than end up getting sideways on the freeway and taking both cars out. The Esprit is really sensitive and it can't take the abuse a lot of other cars can, I have to shift slow and absolutely will not floor it on a turn at 100mph+ because of the imperfections in the road, the suspension is really rough and boost build up is violent, so I don't want to end up in a wall.

The first time I lined up with the M5 we did a 3rd gear run and were dead even and that was without hearing the honks. Every subsequent run was in 2nd gear, the first couple of runs were without hearing honks, the last 2, I did the honking. As soon as boost kicked in I had to fight to keep the car in a straight line with my wheel spin. With NA you can modulate throttle and continue on your way, for me it's power ON or power OFF I had to either let off the throttle or do an early up shift which makes it impossible for me to catch up because I have to build boost again. At any rate, that M5 was fast and sounded great, it was good meeting you guys and hopefully we can do it again soon.

Originally Posted by PedM5' post='805534

LOL VERY nice editing work. You literally picked and chose a mishift run and late start run and cut it out right away? Does anybody notice that the video clips showing me NOT losing get cut out before anything can be shown? I'm sorry but this is rediculous, some fair sportsmanship. Next time we should do in car clips from each car, at the same time.

I have alot of respect for RPI, they truely do quality work and have dyno proven performance products. If anybody feels my mustang interferes with your market, that is a shame.

If I keep talking I will disrespect and offend, and I would rather not stoop down.

Leo