The Official Dyno Thread

Air, fuel, and a spark, thats what makes every one of these Bavarian powerhouses churn at up to 7000RPM. Discuss all 1992-1999 BMW 3 series motors here. Including all M50, S50, M52, S52, M42, and M44 variants.

Postby loonibab///m3 » Sun Jan 20, 2008 3:51 am

dude all dynos differ, it's really hard to judge different dyno sheets on different dynos.. some dyno higher then others and some dyno lower then others. 202 is not a bad number at all, i would be worried though if it was at like 190 or some shit like that, but 200-215 is normal numbers for a stock m3 on a dyno!
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sirius680 (Caligula): ok, how the hell do i bump a e36tech thread with a e36tech logo in my sig WITHOUT looking suspicious
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Postby veriest1 » Sun Jan 20, 2008 1:26 pm

I guess I'll go ahead and up my post count by putting this in here. My latest dyno:

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It was done with a kink in an aftercooler line and a leak around the intake manifold gasket that we didn't know about. The car pulls much smoother now and should be making a bit more power.

Relevant info is as follows.
-OBDII s52 with 155,xxx miles on it
-OBDI intake manifold
-Custom midpipe
-Borla Catback
-Vortech s/c (my guage peaks at about 11 but doing the math and comparing setups says I should only be making 9.5-10psi)
-RMS aftercooler
-Eurosport underdrive pullies.
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"Stg. 3" Vortech @ 17psi
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Re: Official dyno thread

Postby Patrón » Fri Feb 15, 2008 9:39 pm

damn it Veriest, your graphs make me hungry for f/i.
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Re: Official dyno thread

Postby fcvapor05 » Sat Feb 16, 2008 3:07 am

Me too. Such a straight, pretty power curve..
There are only 3 real sports in this world: bull fighting, mountain climbing, and motor racing. The rest are just games. -Ernest Hemingway
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Re: Official dyno thread

Postby SpasticDwarf » Sat Feb 16, 2008 8:56 am

Mmmm thats tasty.
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Re: Official dyno thread

Postby veriest1 » Mon Feb 18, 2008 5:32 pm

Gimme about 2 weeks and I'll raise that.

Random Update: The shop finally got to my car.
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"Stg. 3" Vortech @ 17psi
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Re: Official dyno thread

Postby ali » Tue Feb 19, 2008 12:13 am

veriest1 wrote:Gimme about 2 weeks and I'll raise that.

Random Update: The shop finally got to my car.


Nice! I can't wait to see/hear this thing. Vids when finished or :bigban

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Re: Official dyno thread

Postby veriest1 » Tue Feb 19, 2008 3:37 pm

Haha, I have a camera now so that shouldn't be a problem.
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"Stg. 3" Vortech @ 17psi
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Re: Official dyno thread

Postby ali » Wed Feb 20, 2008 2:46 am

veriest1 wrote:Haha, I have a camera now so that shouldn't be a problem.


:twisted:

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Re: Official dyno thread

Postby Volfinator » Mon Feb 25, 2008 11:02 pm

veriest1 wrote:Haha, I have a camera now so that shouldn't be a problem.



Speaking of... I need a new camera badly
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Re:

Postby kaiv » Wed Mar 05, 2008 5:50 am

MIKEGTR wrote:Car Year: 1998
Model: ///M3
Mods: None
Max HP: 202.96
Max Torque: 207.05
Mileage: 37,504

Image

That dynojet reads low on all cars... so don't hate please... just seeing an STi's max power on that dyno makes you want to sell it...

Mike


That's sounds like the dyno I went on ahah. Everybody was pulling low numbers. Dyno guy said to add 10%. Not sure about that but it was the hottest day of the summer. A vortech SC guy pulled 310 when he had pulled 340+ another day on another dyno. AA TS stage 2 only pulled 325.

I pulled a 221/210 which compared to some could seem low for a modded S52 obd1 but luckily there was a bone stock manual m3 sedan at the dyno that day. He pulled a 194/201. Made me feel great about my numbers !

Image


loonibab///m3 wrote:dude all dynos differ, it's really hard to judge different dyno sheets on different dynos.. some dyno higher then others and some dyno lower then others. 202 is not a bad number at all, i would be worried though if it was at like 190 or some shit like that, but 200-215 is normal numbers for a stock m3 on a dyno!


Very true !
I'm envious of some of you guys numbers, stock or modded but we really can only compare accurately numbers of the same dyno the same day.
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Re: Official dyno thread

Postby Patrón » Wed Mar 05, 2008 10:08 am

In my opinion your torque curve takes a dive because of your 24# injectors and tune. Nice hp curve, but I think with another tune OR 21.5 injectors you'll see that curve stay consistant from where it's reading at 4,500.

I've always preached that the tuners (AA karl hugh and conforti ) went way too conservative at and after 4,500 rpms.

my goal in life is to find a way into tricking the air temp, knocksensors, water temp sensors into thinking different and fixing the a/f curves after 4,500. cracking the dme to trick it into doing this will be impossible for a retard like me.
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TRM custom sw~Eurosport carbon 3.5 CAI~Euro 3.5 hfm~21.5# inj.~ BMP merged headers~Eurosport pullies~AAtrackpipe~UUC catback~Zimmerman xdrilled~Axxis pads~Bilstein/H&R sport~GC shims & 96+rtabs~3.38 Motorsport lsd
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Re: Official dyno thread

Postby kaiv » Wed Mar 05, 2008 9:29 pm

Aaron, your torque curve looks much better than mine. Have you dynoed since the 21.5 and AA software ?

I'm gonna ask Turner to exchange my chip for the one for 21.5 inj. and sell my 24s. It'll still be a conservative tune but won't hurt I guess.
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Re: Official dyno thread

Postby Patrón » Wed Mar 05, 2008 10:03 pm

I will dyno it very soon, I have not with the 21.5s but there are a few indications that it is not running as rich as it was with the 24# setup.
Image
TRM custom sw~Eurosport carbon 3.5 CAI~Euro 3.5 hfm~21.5# inj.~ BMP merged headers~Eurosport pullies~AAtrackpipe~UUC catback~Zimmerman xdrilled~Axxis pads~Bilstein/H&R sport~GC shims & 96+rtabs~3.38 Motorsport lsd
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Re: Official dyno thread

Postby kaiv » Sun Mar 09, 2008 6:03 am

Cool man, better dyno soon before it gets too hot !
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