Reply With Quotei got 139 kw at rear hubs,the dyno unit bolts directly to the wheel hubs/and excel interretation of my graph
2 Grand Master
I put my car on the dyno
Here's the dyno graph the power is in KW and the torque in NM, both at the wheels. hmm, I assumed max power was around 5700 rpm, what do you guys think? I'm assuming a 25% drivetrain loss, thats around 177 kw / 237 hp (power) and 332 nm / 245ft/lb (torque) at the crankshaft. I have stock internals with the eat chip and cold air intake running on 98 RON optimax. What power / torque figures are other guys getting here for the m30? I thought I would get around 120kw at the wheels. I'm happy. sorry no video or pics.
Last edited by BigKriss; 12-01-2005 at 09:00 PM.
3 Grand Master
i got 139 kw at rear hubs,the dyno unit bolts directly to the wheel hubs/and excel interretation of my graph
Gone but not forgotten
2 Grand Master
cool, thanks paul. my car had the rear wheels rolling on a drum.
Grand Master
25% driveline loss? come on dude let's be realistic
-inc
'91 e31 850
'90 e34 535
'02 CBR F4i stunt/track bike
'07 gsxr 750 stunt bike
2 Grand Master
Whats bigkriss got that the rest of us dont? Arent 535i's supposed to have 211hp at the crank?
Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
southwest WA
Major Contributor
What's a more realistic loss?Originally Posted by Incantation
Grand Master
EAT chip.
1990 E34 535iA, 215,000kms (130,000 miles).
Dual Climate, Rear Headrests, Rollerblind, M-Tech Wheel,
Memory Seats, EAT Chip, T-Stars.
2 Grand Master
An eat chip really gives that much more power?
Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
southwest WA
3 Grand Master
i dont hink thats a realistic loss,my car is bone stock except for a slightly freeer flowing rear muffler and i got 139 kw at rear whelsmand the factory says its 155 kw at the crank,what was the kw at the rear wheels,i cant read that graph
2 Grand Master
Paul you can see the max figures underneath the graph. I thought the graph is pretty easy to read, power on the left and torque on the right. Incantation - I was assuming a 20% driveline loss for manuals and 25% for autos. What do you say is it? The runs where made in 3rd gear which I think is the 1:1 ratio.
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