12-21-2013, 11:46 AM | #1 |
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Map7 JB4-stage2
I have Jb4 stage 2 with high flow downpipe (200cell) from ChallengeUSA
i'm constantly using map2(14.psi) i might go to a circuit nearby and want to try out Map7(18.5psi) out there, btw i have new ER F30 chargepipe, do you recommend me to install the chargepipe before going and testing map7 i know it requires race gas but which and how can i know which one is the best for me i know that there are different type of them leaded/unleaded and diff octane ratings.., what's the least number of octane rating should i use,(e.g: 105+octane .)?
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12-21-2013, 04:30 PM | #2 |
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If you have the chargepipe, then you might as well install it. I'm curious to hear your impression of it.
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12-21-2013, 05:34 PM | #4 |
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Who did your downpipe? Maybe use the same person?
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12-22-2013, 10:19 AM | #5 |
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well the one who did my downpipes is a small garage an old guy with his 30yrs old son who do weld exhausts and fix if there any leak in the exhaust system , his specialized in this i guess his not experienced with this stuff.
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12-22-2013, 12:46 PM | #6 |
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Ok, well just my opinion - If you can install a downpipe, then you can install a chargepipe NO PROBLEM. I guess maybe the only odd part of the chargepipe install is that bmw uses an odd clamp but that shouldn't be too tricky.
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01-14-2014, 10:33 AM | #8 |
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Just curious what your tire specs are. I think in stock form you'll only benefit on the straights and might actually suffer in corner exit.
That said i look forward to hearing results!
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01-15-2014, 03:55 PM | #10 |
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Drives: 2013 F30 335i 8SA M-Adaptive
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the engine will pull timing when it senses detonation or pre-detonation and run the wastegate will run wide open dumping all the boost
Translation, you'll get way less power than running it at a map it (the fuel) can handle
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Last edited by utenigma; 01-28-2014 at 02:20 PM.. |
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18.5psi, jb4, map7, racegas |
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