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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 2008 Sedan JB4/Meth Vbox Test Results



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      03-24-2011, 01:38 PM   #67
Jeff@TopGearSolutions
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Ive heard more then once that the CM 10 Nozzle has been great and performance differences noted. Even compared to other M10 nozzles.

I think its atomization and flow characteristics make it flow much better then a general M10/ 10 GPH nozzle.
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      04-04-2011, 07:19 PM   #68
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so hotrod im all stock except jb4 i have a dci in my garage but what should i do next from the looks of it meth right? also what kit should i buy and what nozzles do you suggest?
sorry for all the questions
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      04-12-2011, 04:46 AM   #69
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Originally Posted by WDBi View Post
so hotrod im all stock except jb4 i have a dci in my garage but what should i do next from the looks of it meth right? also what kit should i buy and what nozzles do you suggest?
sorry for all the questions
I have been using the basic Coolingmist meth kit. The boost switch is set to come on around 7-8psi. Thats it, pretty simple setup, actually plugged into my lighter socket still. I was was using the CM5, then went to the CM10m, didn't really notice much difference. I turned on the second nozzle, (CM8?), and timing and traps got worse for some reason. Right now I am back to my silicone nozzle with the CM5 nozzle.

I just did some test runs on my map#6, on higher octane Unocal pump (approx 97).

This is with 2.5" UR DPs, 95% Meth using a CM5 nozzle, and previous Silicone Intake Elbow. Otherwise same BMS DCI, same WR (approx 3500 race weight) And no nitrous bottle was in the car during these runs.

Pretty impressive results.

Run #1
11.8 at 122.5mph, 1.9 sec 60'
0-60 3.5 sec, 0-100 8.2 sec,

Run #2
11.7 at 123.0 mph,2.0 sec 60' (Short shifting 6200rpm)
0-60 3.6 sec, 0-100 8.0 sec

Remember, with Sac being about 2.7mph faster this time last year, this would have been 125.7 mph, and approaching the 335i trap speed record. Not bad for stock intercooler, and stock rear exhaust/cats.

It is quite evident that achieving a 11.7 with a lousy 2.0 sec 60' time puts this right up there with the strongest recorded 335i runs. It seems that short shifting brough quite an improvement, as none of my other test results have been short shifting for consistant comparisons. (I just had to try it since I was running out of my high octane, LOL). But couple this with a better launch, and it would have been 11.5-11.6 runs. Again, right there in the realm of the quickest 335i non nitrous times. Here is the Vbox screen shots. Level ground,. (Graph available on request). I used to get so excited just to runs 11's on the street. Now it seems like getting 11 second runs on the the street with my daily driver NT555Rs, no burn out, regular 28psim, etc, is a walk in the park now! 11.7 is pretty decent for those conditions. I'm not even sure how much the 97 octane helped, but will report back results when I'm fully on 91 octane again,
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2011 Alpine 335d M-Sport 12.34 @ 110.48mph
2012 LEAF 130MPGe
2008 Black 335i Sedan. 11.11@ 129.47 mph,(8.39 sec 60-130 stock turboWR)
2008 Monaco Blue JB3 2.0 335i Coupe. 11.33 @ 132.77 mph (N54 trap speed WR)
60-130mph: 6.95 seconds stock turbo WR (.16% slope)
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