Did a new Z4M coupe at the weekend..
Discussion
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)
342bhp (flywheel equivalent)
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 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
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
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
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...
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
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 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....
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
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!
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
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
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