Did a new Z4M coupe at the weekend..

[vixpy1]

Guess what it made... 1400 miles on the clock..

[off_again]

Oh, dont know - guess it will be low though. Say 260BHP?

[phatgixer]

Assuming corrected figure with run downs and the ABS chip fooled so it can go to 8,000 on the right fuel / ignition / vanos map (not sure if anyone can actually do this, mucho bullshit spoken by dyno operaters that they can, only to find they in fact can not...)

342bhp (flywheel equivalent)

[john_r]

Don't the M cars electronics prevent accurate rolling road readings? Might be an urban myth...

[vixpy1]

BMW Claim 338, and 269 ft/lb's

[vixpy1]

john_r said:

Don't the M cars electronics prevent accurate rolling road readings? Might be an urban myth...

No.. only the CSL, never had a problem with anything else..

[rassi]

So, what did it make?

[vixpy1]

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

[phatgixer]

vixpy1 said:

john_r said:

Don't the M cars electronics prevent accurate rolling road readings? Might be an urban myth...

No.. only the CSL, never had a problem with anything else..

Oh! It was a CSL that happened to, to be fair. Bloody thing. I took it to 3 'experts', all of which professed to be able to run it to 8,000 rpm and all of the failed... Still made 347 at 6,250 though.

[phatgixer]

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

342 was only 4bhp out. Do I win a prize?

[vixpy1]

phatgixer said:

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

342 was only 4bhp out. Do I win a prize?

Yes.. I shall tell you this.. I did a 535D at the weekend with a tuneit box.. 330bhp and 480 ft lb's of torque..

Very nice

[phatgixer]

....My wife has a 535d.

mmmm.


Tick tick tick tick tick tick tick tick.

What is a tuneit box?

[vixpy1]

Same this as a DMS map, though i've done a DMS equipped car as well and the map was better, more torque..

get the DMS one

[phatgixer]

Young Robert...hmmm.

Yesh, I think I might.

[john_r]

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

The BHP ain't far off; what's the torque in Nm? Was it run in or brand new?

Charlie - whens the next PH RR day? I may come and have a run...

[trackdemon]

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

Very good, so it should! Would be interesting to RR one with 20k on the clock....

[vixpy1]

john_r said:

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

The BHP ain't far off; what's the torque in Nm? Was it run in or brand new?

Charlie - whens the next PH RR day? I may come and have a run...

Jan.. thread running in general Gassing..

Despite what is stated in various articles, BMW only claim 338bhp for the Z4m coupe i believe.

[off_again]

off_again said:

Oh, dont know - guess it will be low though. Say 260BHP?

Totally bloody wrong then....

I did read a Z3M rolling road report in BMWCar magazine a while ago - most struggled to get close to the mark and many with very low miles were off by quite a bit. Even the ones with small modifications like changed air filters / boxes and sports exhausts struggled to get to the standard figures. I will see if I can find the magazine in a bit!

I guess the new ones are bang on then....

[john_r]

vixpy1 said:

john_r said:

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

The BHP ain't far off; what's the torque in Nm? Was it run in or brand new?

Charlie - whens the next PH RR day? I may come and have a run...

Jan.. thread running in general Gassing..

Despite what is stated in various articles, BMW only claim 338bhp for the Z4m coupe i believe.

Max output (bhp/rpm) 343/7900
Max torque (Nm/rpm) 365/4900 (Which is 269.3 Lb-Ft)

Almost spot on - pretty good for a new car just run in!

[Zod]

vixpy1 said:

phatgixer said:

vixpy1 said:

Well, after much shaking of heads by us .. saying.. its an M car.. it will never make the power..

It made.. 338bhp and 270 ft/lbs..

Then the guy drove it back to the dealer

342 was only 4bhp out. Do I win a prize?

Yes.. I shall tell you this.. I did a 535D at the weekend with a tuneit box.. 330bhp and 480 ft lb's of torque..

Very nice

Done an M5 yet? Rumour has it (and of course I want to believe this) that they all make more than the 501/507 bhp claim.