M-Series (M1, M3, M5, M6)General M-Series Discussion - If it does not fit into a more specific M Category above, please place it in here. In addition, previously archived M-Series discussion is located in this section.
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this is a chasis dyno, i removed the wheels...so i have to weigh my wheels to do the equation to get my rough HP and TRQ
a guess is that i subtract about 15-20 hp...as someone on bf.c stated,
Quote:
Originally Posted by SicNA94teggsr
Dynapac's are from NewZeland, they call the rotors flywheels there.
my AFR is retarded, thoughts?
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Last edited by SpeedInfusion; 02-12-2007 at 11:59 PM.
I'd say the cut out at 5500 rpm with the dip in A/F is due to the drop out of the vanos unit... could be a faulty vanos valve... or sensor. Not a big deal...
Dude your putting down some damn good numbers... I'd be happy with those... but add about 30 horses and thats what I got... .. it looks normal... do so research for A/F on other M3's your year and mileage... and you'll probably have the same results... bf.c is a good start to search.
I'd say the cut out at 5500 rpm with the dip in A/F is due to the drop out of the vanos unit... could be a faulty vanos valve... or sensor. Not a big deal...
Dude your putting down some damn good numbers... I'd be happy with those... but add about 30 horses and thats what I got... .. it looks normal... do so research for A/F on other M3's your year and mileage... and you'll probably have the same results... bf.c is a good start to search.
Good luck,
Les
yea, im thinking vanos too, its been making alot of noise, i just picked up one of bf.c, i might pick up one more just in case....
ya check the vanos unit but those numbers are about as good as you will get with a stock S50
__________________ Kyle Sutherland
1995 BMW 540i/6: The Calypso Beast Vid 0-70ish 1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold* 1985 VW Scirocco: Too many mods, money pit*Sold* E34 Plate Filler Wanted!
The numbers look about perfect for the car. I'd expect when you put it on a dynojet you'd put down 200/200.
I'm not a fan of dynapack's because a lot of people (especially on bf.c) try and show these numbers and claim them without telling people it's a chasis dyno. It cannot be used for comparitive purposes.
And those AFR's are all kinds of weird. What did they use? Was it a sniffer? Was it properly placed? Once again this dyno shop can go fuck itself. Go to a real one please because this doesn't look proper at all. And if so you're all kinds of lean to the point where it's scary and unsafe for your motor.
edit: i'm looking at your AFR's once again and that just looks ridiculous. Honestly something wasn't done right and I doubt your car has a problem. It's your dyno shop and their incompentency in my opinion. What was your AFR at idle according to them?
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1995 BMW M3 Turbo - Dakar/Black
Last edited by ///M Power; 02-13-2007 at 09:12 AM.
I completely forgot about A/F sensor placement... good point.
Les
Quote:
Originally Posted by ///M Power
The numbers look about perfect for the car. I'd expect when you put it on a dynojet you'd put down 200/200.
I'm not a fan of dynapack's because a lot of people (especially on bf.c) try and show these numbers and claim them without telling people it's a chasis dyno. It cannot be used for comparitive purposes.
And those AFR's are all kinds of weird. What did they use? Was it a sniffer? Was it properly placed? Once again this dyno shop can go fuck itself. Go to a real one please because this doesn't look proper at all. And if so you're all kinds of lean to the point where it's scary and unsafe for your motor.
edit: i'm looking at your AFR's once again and that just looks ridiculous. Honestly something wasn't done right and I doubt your car has a problem. It's your dyno shop and their incompentency in my opinion. What was your AFR at idle according to them?
The numbers look about perfect for the car. I'd expect when you put it on a dynojet you'd put down 200/200.
I'm not a fan of dynapack's because a lot of people (especially on bf.c) try and show these numbers and claim them without telling people it's a chasis dyno. It cannot be used for comparitive purposes.
And those AFR's are all kinds of weird. What did they use? Was it a sniffer? Was it properly placed? Once again this dyno shop can go fuck itself. Go to a real one please because this doesn't look proper at all. And if so you're all kinds of lean to the point where it's scary and unsafe for your motor.
edit: i'm looking at your AFR's once again and that just looks ridiculous. Honestly something wasn't done right and I doubt your car has a problem. It's your dyno shop and their incompentency in my opinion. What was your AFR at idle according to them?
they say the AFR reads about 1 point higher...which is still high...
M power is the man...I doubt you would be putting up those numbers running that lean...then it runs rich and the power falls off?? Crazy stochiometric ratios
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Dynoed the M3 
.. it looks normal... do so research for A/F on other M3's your year and mileage... and you'll probably have the same results... bf.c is a good start to search.
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