F10 M5 underrated claims backed up with 534 wheel horsepower Mustang dyno in SAE

Originally Posted by Sorena

Shouldn't a Mustang read lower than DJ?

That's a general rule but it doesn't always hold true. Look at this Mustang dyno for the F10 M5 that does agree with that. I think this Mustang just happens to read like a dynojet or is set that way as this is how it "should" be:

dyno didn't go to redline?

Originally Posted by spool twice

dyno didn't go to redline?

Guess not.

Originally Posted by Sticky

Guess not.

a monster indeed nonetheless.

Originally Posted by Sorena

Shouldn't a Mustang read lower than DJ? And IND used 3rd while this is done in 4th. Maybe it's a happy Mustang or IND's DJ read low.

Eitherway it's great to see this engine is so powerful.

Wouldn't a 4th gear pull read higher than 3rd since it gives the turbos more time to load? I think I saw that when inside line tested an S63 using 4th and 5th. I wonder how close this motor is to the limit since this is a 4.4 outpowering the 5.5 M157.

What was the correction factor?

We are finding them to be very close to the power quoted.

Remember, correction factor (SAE, DIN, STD) can sometimes have a very skewing effect on the power.

Here's our graph on a Dyno Dynamics. 4th gear on 99 Euro Octane. Correction Factor was around 0.97 (minus 3%). So uncorrected around 456 whp. Done in shoot out mode.

It's simply not possible that one car here is making almost 100hp less.

An E60 M5 makes just under 400 whp on our dyno. The difference on paper and dyno is consistent at around 50hp.

Originally Posted by evolve

What was the correction factor?

We are finding them to be very close to the power quoted.

Remember, correction factor (SAE, DIN, STD) can sometimes have a very skewing effect on the power.

Here's our graph on a Dyno Dynamics. 4th gear on 99 Euro Octane. Correction Factor was around 0.97 (minus 3%). So uncorrected around 456 whp. Done in shoot out mode.

It's simply not possible that one car here is making almost 100hp less.

An E60 M5 makes just under 400 whp on our dyno. The difference on paper and dyno is consistent at around 50hp.






http://www.bimmerboost.com/images/im...e74f11_b-1.jpg

Not sure on the mustang but on dynojets it seems the new M5/M6 are in the 520-530 range which is stout.

Dynojets read really much higher than DD when it comes to FI cars.

The difference can be staggering.

Originally Posted by Sticky

That's a general rule but it doesn't always hold true. Look at this Mustang dyno for the F10 M5 that does agree with that. I think this Mustang just happens to read like a dynojet or is set that way as this is how it "should" be:

A dyno operator can make a Mustang show 700whp for a stock F10 M5 if you wish.

I can say with confidence that our Mustang is 100% 'stock' That's why it reads low, typically lower than most Mustangs.

I will never forget the first time I ran my Supra on a dyno. The tech asks me, "so Mike, how much power do you want to make today?" He then explained that dyno numbers are easily manipulated and ONLY good for the delta (on the same dyno).

Originally Posted by Mike@VAC

A dyno operator can make a Mustang show 700whp for a stock F10 M5 if you wish.

I can say with confidence that our Mustang is 100% 'stock' That's why it reads low, typically lower than most Mustangs.

I will never forget the first time I ran my Supra on a dyno. The tech asks me, "so Mike, how much power do you want to make today?" He then explained that dyno numbers are easily manipulated and ONLY good for the delta (on the same dyno).

Definitely valid to keep in consideration how dyno numbers can be manipulated.

Yep. Acceleration numbers and weight show true power assuming no traction issues.

Originally Posted by Mike@VAC

A dyno operator can make a Mustang show 700whp for a stock F10 M5 if you wish.

I can say with confidence that our Mustang is 100% 'stock' That's why it reads low, typically lower than most Mustangs.

I will never forget the first time I ran my Supra on a dyno. The tech asks me, "so Mike, how much power do you want to make today?" He then explained that dyno numbers are easily manipulated and ONLY good for the delta (on the same dyno).

Well said.

I have been over this subject some time back.

Without a correction factor - dyno results belong in the bin.

Anyone can set the correction factor upto around +30%!

I for one do not believe that an F10 M5 can produce 530+ wheel consistently on a Mustang when they read so close to a DD normally.

Delta is what it's all about but people mess with the correction factor for the 'after tuned' runs to bump them up.

Too much of that goes on.

Anyway, I do not believe the F10 is either over or under rated.

We will dyno another one on our machine with correction factors shown clearly.

Originally Posted by evolve

Well said.

I have been over this subject some time back.

Without a correction factor - dyno results belong in the bin.

Anyone can set the correction factor upto around +30%!

I for one do not believe that an F10 M5 can produce 530+ wheel consistently on a Mustang when they read so close to a DD normally.

Delta is what it's all about but people mess with the correction factor for the 'after tuned' runs to bump them up.

Too much of that goes on.

Anyway, I do not believe the F10 is either over or under rated.

We will dyno another one on our machine with correction factors shown clearly.

Amen!

Originally Posted by evolve

Anyway, I do not believe the F10 is either over or under rated.

I strongly believe it is underrated .