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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > 135i DCT PPK1 / PE dyno



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      11-15-2014, 02:18 PM   #1
gemini.m3
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135i DCT PPK1 / PE dyno

Hey guys


I took my car to a shop w/ a dynojet.. I'm happy w/ the results on horsepower, but the torque doesn't look right to me. I'm fairly inexperienced in the tuner game so pardon my ignorance but I felt the guy operating the dyno didn't know what he was doing or the car wasn't cooperating with him, or maybe just something else is going on! I think the runs were in 3rd or 4th.. not sure.

I did research online most of the PPK1 cars make max torque at around 2500-3100 RPM:

Dyno I found of n55 ppk1 online: look specifically at max torque at about 2600 RPM



it seemed like the dyno was only logging the torque at 3000+ RPM, can that even happen? so my max torque was 282 at about 3800 RPM if I'm reading graph right? he said because the car was DCT everytime he tried to floor it in 3rd/4th gear at that low of an RPM the car would automatically downshift into 2nd or 3rd?

Actually recorded a video of that exact thing happening. Plus for some reason all the ABS lights were on and the car had errors on the navi screen but he said that was normal? heh

VID:


My dyno.. torque curve doesn't start until 3k+?




Any thoughts are welcomed.. considering taking it somewhere else, but can't complain for $60 bux and the car is making the horsepower it should at least. Basically a little confused as to why I can put down 292 HP to the wheels but my torque not be anywhere near the 300+ other PPK1 cars are putting down.
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Last edited by gemini.m3; 11-15-2014 at 03:15 PM..
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      11-16-2014, 03:58 PM   #2
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ne opinions on this? thinking the dyno operator didn't go WOT in 3rd/4th in early RPM's in fear of the auto tranning down-shifting

would explain the ppk1 level expected HP and lower torque.. rest of the torque curve matches the ppk1, just not the max cuz i didnt think he WOT .. driving me crazy thinking something wrong w/ car
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      11-16-2014, 04:51 PM   #3
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I did a baseline dyno this summer when I first got the car. Stock with just ppk1 and did 303/318 in a 3rd gear pull. Try a different dyno maybe. I did the whole way to redline on all the pulls
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