any word on the rms supercharger?

[phillym5]

i remember when it got fired up, but havent heard if it running or what. any info for a curious m5er?

[BostonRocket]

I spoke to Black M5 on the phone a few days ago, and he said that they dynoed the car. They are just finishing up the ECU work, and it's all good to go.

'Rocket

[farcknorf]

What's the dyno result ???

[BostonRocket]

I think it was 502 hp at the wheel.

'Rocket

[Adam]

Originally posted by BostonRocket
I think it was 502 hp at the wheel.

'Rocket

wow thats a lot of power at the wheels...its going to be a serious beast!

all the best
adam

[farcknorf]

502 at the wheels !!!

[atomic80]

502 RWHP makes mine seem pathetic.

Mine was 348.2 RWHP which translates into approximately 409 hp. That means that Black M5's car has something like 550-560 hp at the crank if you factor in the 15% power loss from crank to the wheel.

[lebouf]

In this day and age 348.2 doesn't sound like much

No seriously, 502 at the wheels is insane! How long has his car been in the shop anyway?

[CM5GO]

502 at the wheels does'nt mean much sitting in the shop for two years.

Get it on the street and make it run for a year and then I will be impressed.

Dont mean to be negative. I just think RMS is real sketchy. They have been doing their last minute fine tuning for 6 months now.

[bobafett]

Jason,

while I'm not sure which estimate is correct, your math is off. If you have 502 horsepower @ the wheels, with a 15% loss, that means you have to divide 502 by .85, which translates into 590bhp @ the crank. The method of 502 * 1.15 is incorrect because it isn't 15% from the wheels, but the crank. The relative measurement will result in the skew (which actually comes out to 577).

--Dan