RR Tomorrow!

A

Aliv6

Senior member
 Aberdeen
On a rough search, seems most stock M's run between 330-342...not sure on the torque figure. This is a Dastek RR. Looking forward to it actually. Been a while since i've done anything car related. Some nice metal going too, although i think I'll be one of the lower Bhp cars on the day!

FWD:
Greg Law - Focus RS
Kris Mann - Corsa
Josh Knight - 1.8T Polo GTi

RWD:
ViperPict - Viper RT/10
Sandy59 - Porsche 968 CS
Fuzzy Dunlop - MGB V8 Roadster
Ali - Z4M
John Barrie - TR8

4WD:
AK - Impreza
Fee - R32 GTR
CJE - Impreza
D2 - Evo
Richy - Impreza
Eric Holmes - Evo
Fuzzy Dunlop - Audi S3
Laura - RS4
Allan - R35 GTR
John Hanton - R35 GTR
Blair - Impreza
Euan - RS4

Will post pics and print outs next wk!
 
Aye, fairly consistent rollers too. Clio 172 ran 169PS there and V6 ran 253PS. Bang on!
 
i got 507hp @ simpson motorsport @ 8psi boost on 98 octane, i now mix 110 race unleaded and it feels alot better :-)
 
api330 said:
Why 95 ron when you where going on a rr shoot out ?. :?
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I was gutted, hadn't used the car for a while and had a full tank of 95 (only because I'd nearly ran out and no VPower close)... Short of driving 250 miles to use it up I had no choice :(
 
It would be good if we could have a Z4 only RR day, then we can compare against each other
 
Errmmm...interesting day. Pity there wasn't any other M3's/Z4M's there as a back to back.

Car ran..... 317bhp ATF, 276bhp ATW

The ATW's figure is the only one i'm interested in, but seems it's still about 10-15bhp down on most.

I don't really get flustered about RR results as they all differ! The curve was fairly smooth and fueling ok.

Was 23deg, 95RON, car doesn't get much of a run these day sadly, maybe some of that affected the result? Dunno.

RS4's ran 390 & 391 respectively

Will post up graphs tomo.

Ali
 
Maybe if you ran 98 you might get a few more horses. I think 276 is a good result, sadly our engines never post their factory numbers. :thumbsup:
 
The other Z4MR that ran there previously ran 285ATW...So not far away!

Car still feels stong on the road, enough to keep these RS4's at bay! ;)
 
I think you'll find your reading about right on 95RON, when Charlie ran mine at Surrey RR he said he felt it holding back a little at the top end compared with others and was quite sure this due to fuel and nothing to worry about.

srr_atw_z4mr_95RON_Stock.jpg


:thumbsup:
 
Aliv6 said:
Thanks for posting. Yeh, but never really found a difference in performance 95vs98?!
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Well you wont really notice an extra 10hp on your butt dyno but that doesnt mean it wont be there... :)
 
Aliv6 said:
Thanks for posting. Yeh, but never really found a difference in performance 95vs98?!
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My E92 M3 was very different on VPower, to be honest I don't feel much difference with the Z4M... on the dyno the E92 would be c400bhp on 95RON and best was 426bhp on VPower !
 
fuel on these cars is very important, i actually think for the temp on the day and the fuel you were using thats a respectable figure......... BUT all these dyno's should be taken with a pinch of salt imo.... ive seem my results go from 507bhp down to 490 after numerous runs, imo its all about how it feels on the road and its a simple fact dyno's are very easy to manipulate, its just a rough idea of power imo, good results for the conditions........
 
Beedub said:
fuel on these cars is very important, i actually think for the temp on the day and the fuel you were using thats a respectable figure......... BUT all these dyno's should be taken with a pinch of salt imo.... ive seem my results go from 507bhp down to 490 after numerous runs, imo its all about how it feels on the road and its a simple fact dyno's are very easy to manipulate, its just a rough idea of power imo, good results for the conditions........
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With you 100% on this, forget the numbers they give you, just use the same RR when you make modifications to see any losses or gains (and this is very subjective if not done on the same day or if the RR is owned by the Co. that's installing your upgrades!)
 
Good points made by both ^

If i do modifications, i always use the same rollers as a means of 'accurate' comparison.

Was a good day regardless. The 660bhp GTR was outstanding, if a bit loud! At was the 188bhp MGB V8! :)
 
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