[aerokubectl]

Originally Posted by hellrotm

Someone take this offer. Where are the Early SoCal owners at?

I haven't seen a single one on the streets, my guess is that all of our allocations + shipping is delaying shit

[jdub486]

So it probably made 380-390 rwhp? Still solid.

[FSU_Logan]

Originally Posted by zenmaster

Actually, all Dynojets are pretty much the same - as the drum weighs the exact same everwhere. http://imageftp.dynojet.com/CMD/Trut...Runs_Final.pdf Anecdotally, I've seen very consistent results over the years. The difference in metrics accuracy will be largely due to local air temp/humidity/pressure as correction factors.

I have had my car dyno'd on probably 3 different dynojets. If they are not up on calibrations, they will vary... you can also load them to reflect results you seek. I prefer MD.

[M-Pilot]

Originally Posted by FSU_Logan

Oh jeez... that is really lame lol. Only in Europe

Thanks for the information

I mean I would love my M2C to make 440whp from the factory so that I don't even need to tune it but 440whp stock is really unrealistic

[FSU_Logan]

Originally Posted by cntzl

I mean I would love my M2C to make 440whp from the factory so that I don't even need to tune it but 440whp stock is really unrealistic

Yeah, I agree. I only see bench racers ever use bhp, so I didn't expect it to be used. Lol

[cptobvious]

Originally Posted by tom @ eas

Anyone local to Anaheim, CA what would like to see what their M2C does on a dynojet, I'd be happy to sponsor a run.

Awfully generous of you. I'm in San Diego, but happy to drive up to do it if we don't have any others in Orange County area who can do it.

[tom @ eas]

Originally Posted by cptobvious

Awfully generous of you. I'm in San Diego, but happy to drive up to do it if we don't have any others in Orange County area who can do it.

Sounds good - let's make this happen.

[chris719]

Originally Posted by FSU_Logan

Oh jeez... that is really lame lol. Only in Europe

Thanks for the information

If you think about it though it actually makes more sense to call them something like BHP and maybe uncorrected BHP. The terms people commonly call WHP and WTQ are estimated crank HP and TQ numbers without correction for drivetrain loss.

WHP sort of works because the output speed of a gearbox or final drive changes opposite the torque increase by the same factor, so it cancels basically. What most people call WTQ is very badly named because it's actually estimated crank torque without correction. It doesn't take into account final drive ratio and wheel diameter (first gear actual wheel torque is a huge number for most cars, for example).

Yeah we all know what it means, but I can understand why Europeans would finish back-calculating all the way to the crank even though the drivetrain loss is just a guess.

[Karmic Man]

Originally Posted by FSU_Logan

Awesome numbers. I wonder if that 0.1 bar boost severely outweighs the OPF's restriction and euro cars are higher #'s...

Don't think so. 0.1 bar is not much and won't severely outweighs the OPFs. I would say the non OPF version would make a similar amount of power...

[chris719]

Originally Posted by Karmic Man

Don't think so. 0.1 bar is not much and won't severely outweighs the OPFs. I would say the non OPF version would make a similar amount of power...

Agreed, I think there is something else going on if the B58 is losing 40 hp in Euro spec.

Maybe B58 cannot meet the particulate levels needed even with OPF without that change in tune.

[mr_lab_rat]

I don't know why so many people are confused by this:

BHP - crank horsepower. Could be measured by engine dyno or calculated from WHP by adding approx 15%
WHP - measured by roller dyno like Dynojet or Mustang.

There is so much room for bending the numbers. Drivetrain loss is just estimated. Some people use 20%, some use 15%. The weight of the roller drum makes a difference. Dynojet typically reads higher.
Then there are corrections. Not every dyno operator uses them correctly. A 300 whp car can pull 330 on a cold day and 270 on very hot day. Uncorrected numbers should never be used but often are.
One time I got a pull done and the numbers were about 10% more than I expected. The operator said he had the Mustang dyno in "Dynojet emulation mode" so it read higher.

So after all that experience I really stopped caring about dyno charts. When I do something to the car I dyno it at the same shop and try to pick a day with similar weather so the corrections would also be similar.

[FSU_Logan]

Originally Posted by mr_lab_rat

I don't know why so many people are confused by this:

BHP - crank horsepower. Could be measured by engine dyno or calculated from WHP by adding approx 15%
WHP - measured by roller dyno like Dynojet or Mustang.

There is so much room for bending the numbers. Drivetrain loss is just estimated. Some people use 20%, some use 15%. The weight of the roller drum makes a difference. Dynojet typically reads higher.
Then there are corrections. Not every dyno operator uses them correctly. A 300 whp car can pull 330 on a cold day and 270 on very hot day. Uncorrected numbers should never be used but often are.
One time I got a pull done and the numbers were about 10% more than I expected. The operator said he had the Mustang dyno in "Dynojet emulation mode" so it read higher.

So after all that experience I really stopped caring about dyno charts. When I do something to the car I dyno it at the same shop and try to pick a day with similar weather so the corrections would also be similar.

All about them 1/4 mi times

[Craig335d]

But forget about all of that what about the terrible noise..........and requirement for a “massive tune”.

[ChrisK]

Originally Posted by zenmaster

Agreed. Over 50 ppl on this forum have had their M2C for weeks to months, surprising this is the only dyno.

Some of us are struggling to hit the 1200 mile mark before the weather goes to crap lol

We had a frost warning in the Chicago area

[CSBM5]

Originally Posted by ChrisK

Some of us are struggling to hit the 1200 mile mark before the weather goes to crap lol

We had a frost warning in the Chicago area

I bought the M2C from BMW of Barrington on Wednesday and already have over 900 miles on it! Awesome car, and a fantastic dealer experience there. It sure was nice to get away from the oppressive humidity for a day on the trip up there. Another 7+ days of mid to upper 80s and humid coming here. Can't wait for fall weather.

[ChrisK]

Originally Posted by CSBM5

I bought the M2C from BMW of Barrington on Wednesday and already have over 900 miles on it! Awesome car, and a fantastic dealer experience there. It sure was nice to get away from the oppressive humidity for a day on the trip up there.

That's great! Congrats!

I plan on going for a drive tomorrow. Hopefully another 100 or two

[bri1042]

Originally Posted by ChrisK

That's great! Congrats!

I plan on going for a drive tomorrow. Hopefully another 100 or two

I was going to this morning but I got called for work at 1am (on call week...grrr...) and didn't get back to bed until 3. Grr. Grr. Grr. I have friends coming over today, so my Saturday morning plan for a fun drive is blown.

[tom @ eas]

M2C getting strapped to the dyno now, I'll update the thread after the weekend with dynojet results.

[M-Pilot]

Originally Posted by tom @ eas

M2C getting strapped to the dyno now, I'll update the thread after the weekend with dynojet results.

Which throttle mode do you guys use on the dyno? I assume Sport+ because of its more aggressive cooling or does it not really matter on a dyno?

[hellrotm]

Originally Posted by tom @ eas

M2C getting strapped to the dyno now, I'll update the thread after the weekend with dynojet results.

Member from the forum?

[tom @ eas]

Originally Posted by cntzl

Which throttle mode do you guys use on the dyno? I assume Sport+ because of its more aggressive cooling or does it not really matter on a dyno?

Sport+, doesn't really matter much at WOT.

Originally Posted by hellrotm

Member from the forum?

Don't think so, getting last of the cosmetic pieces installed and then dyno time. 1200mi service just completed.

[twboy1999]

looking forward to more dyne results