So I did a thing.

"Desu-San-Desu" (Desu-San-Desu) 07/12/2015 at 12:19 • Filed to: None

0

19

New local shop opened up recently and had a Dyno day yesterday to celebrate their new Mustang AWD Dynanometere. Took my 2006 Mini Cooper S 6MT there to get a baseline and to find out how much, if any, power it has lost since it rolled off the assembly line.

Only mods are M7 Strut-tower defenders and a One-Ball resonator delete. Car has 87,300 miles.

Results were 154whp @ 6,500rpm, 142wtq @ 3,800rpm. Accounting for 12% drivetrain loss, this puts it at 175bhp, 161btq.

desertdog5051 > Desu-San-Desu 07/12/2015 at 12:23

0

Go Mini, Go. How high did they rev it?

LongbowMkII > Desu-San-Desu 07/12/2015 at 12:25

0

What was the stock rating?

Desu-San-Desu > desertdog5051 07/12/2015 at 12:27

1

They rev’d it to 6,700rpm.

Desu-San-Desu > LongbowMkII 07/12/2015 at 12:29

0

That’s a point of contention. Most were 168hp, but the ‘05 and ‘06 were rated at 170, but most publications and sources continued to list it at 168. However, BMW/Mini never specified whether those quoted figures were at the crank, the flywheel, or the wheels. If you go around asking, different sources will give different answers. It’s a little frustrating.

DasWauto > Desu-San-Desu 07/12/2015 at 12:45

0

Horsepower is normally quoted at the crank. I don’t think I’ve ever seen a manufacturer quote wheel horsepower. Ze germans (Mini included because BMW) do often underrate their engines slightly. I’d say yours has held up well.

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > Desu-San-Desu 07/12/2015 at 12:47

0

Probably not at the wheels then, seems like a lot to loose for a newer car?

tromoly > Desu-San-Desu 07/12/2015 at 12:48

2

Keep in mind that the number also has to do with the SAE correction factor, years ago Hot Rod did an article where they went to a few different dynos int he same area and compared the numbers, each one was different by a few numbers (specifically I don’t remember), mostly due to the correction factor.

TwinCharged - Is Now UK Opponaut > Desu-San-Desu 07/12/2015 at 13:00

0

Wow, that’s pretty good!

Desu-San-Desu > tromoly 07/12/2015 at 13:00

0

From what I’ve read, the dyno mine was run on generally gives some of the lowest numbers, to the point it even has the nickname “Heartbreaker dyno”.

Desu-San-Desu > 415s30 W123TSXWaggoIIIIIIo ( •_•))°) 07/12/2015 at 13:02

0

It’s 10 years old at this point, lol. And if the numbers advertised at the crank or flywheel, that means my car is still making more power than rated from the factory.

tromoly > Desu-San-Desu 07/12/2015 at 13:10

2

That’s a plus then.

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > Desu-San-Desu 07/12/2015 at 13:46

0

Oh I see, nevermind. I can’t believe those are ten years old already....

DoYouEvenShift > tromoly 07/12/2015 at 14:07

1

http://www.hotrod.com/how-to/engine/…

tromoly > DoYouEvenShift 07/12/2015 at 14:14

0

That’s the one, thanks for digging it up.

DoYouEvenShift > tromoly 07/12/2015 at 14:55

0

No problem. I immediately knew what you were talking about, that article stuck with me.

Squid > Desu-San-Desu 07/12/2015 at 17:46

1

The numbers on a dyno aren’t what is important. It is the power curve which is important. Each dyno and operator will give you different numbers, but the curve should stay relatively similar. so if you do some tuning that should be what you focus on and not any numbers.

Desu-San-Desu > Squid 07/12/2015 at 17:57

0

The horsepower curve is extremely linear. The torque curve has a very symmetrical curve that peaks at 3,800rpm. I’m pretty happy with the power curves, actually. Wouldn’t mind a tiny bit more low-end torque, though.

Squid > Desu-San-Desu 07/12/2015 at 18:00

0

Low end torque is where it is at. but having it peak at 3,800 isn’t bad at all that is still low enough to power out of turns without the need to downshift to get into the power.

Desu-San-Desu > Squid 07/13/2015 at 04:23

0

Yeah, I know. I just wouldn’t mind being able to be more responsive off the line.