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N55 5" CPE Downpipe Dyno
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01-16-2013, 01:42 PM | #1 |
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N55 5" CPE Downpipe Dyno
N55 JB4 ISO, BMS intake, and around 50% E85 and the CPE 5" DPs
Peak power gains were around 12whp with as much as 25whp in areas under the curve. Peak torque gains were around 20wtq with as much as 40wtq in areas under the curve. |
01-16-2013, 08:07 PM | #4 |
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01-16-2013, 08:07 PM | #5 |
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01-16-2013, 08:11 PM | #6 | |
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Also, real quick... What the best amount of e85 to use on my 2012 e92 335xi N55. Jb4 stg 2, BMS dp, BMS intake, exhaust, ER cp. Most likely running map 5. No ISO mod yet, I don't know of that will affect it. But, I've been doing 40/60... e85/93 octane. Intercooler soon. Maybe 50/50?
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01-16-2013, 08:35 PM | #7 | |
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01-16-2013, 10:20 PM | #8 | |
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What do you mean when you say alternate every 2 fill ups works straight up 93 octane?
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01-17-2013, 04:14 AM | #10 |
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They are technically part of the exhaust but no system is going to include the downpipes. They all use stock mounting points and hardware so there is no issue mating them up.
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01-17-2013, 10:11 AM | #11 |
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I mean not to go 50/50 on every fill up. One or two times of 50/50 fill up and then flush it out with one or two fill ups of straight 91/93 (whichever available in your area).
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01-17-2013, 10:16 AM | #12 |
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Thanks for clearing that up. You run map 7 on 50/50 as well? Isn't map 7 race gas? 100+ octane? How is that compared to map 5 (other than boost levels).
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01-17-2013, 10:34 AM | #13 |
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Map7 is for race gas but I figure since e85 and 93 mix should increase the octane level then why not try it once in a while. Map 7 runs great with even better turbo feedback and car feels even quicker than map5. The ISO and e85 has made the acceleration, less turbo lag and torque a lot more noticable.
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01-17-2013, 10:40 AM | #14 | |
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01-17-2013, 01:48 PM | #15 |
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What are you waiting for?
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2011 e90 KW V1, JB4, BMS Dp, BMS Intake, CP, Alpina Flash, ISO, E85
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01-17-2013, 03:19 PM | #17 |
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