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BMW 3-Series (E90 E92) Forum
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i need help with my jb4 tune
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| 09-18-2012, 09:06 AM | #1 |
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can anybody tell me if this is normal? my boost will peak at around 15-16 psi but it will go done to like 10 psi at the end of the gear. 1st 2nd 3rd gear map 5, 93 octane, afe dual cone intake
Last edited by ilirduka335xi; 09-18-2012 at 09:48 AM.. |
| 09-18-2012, 09:11 AM | #2 |
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what gear is that ? turn off completely traction control and log 3rd gear
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07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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| 09-18-2012, 09:14 AM | #3 |
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First Lieutenant
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It's 1st 2nd and 3rd
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08 335xi e92, JB4 g5, Afe s2 DCI/scoops, AR catless dps, Helix FMIC, H&R sport springs
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| 09-18-2012, 09:17 AM | #4 |
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than do 3rd only and 4th. 1-2 are useless. Its normal that the pressure tapers on high rpm. Also you should always state map, octane , mods etc. etc
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07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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| 09-18-2012, 09:30 AM | #5 |
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First Lieutenant
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Drives: 2008 bmw 335xi space gray
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Ohh I edited it lol and maybe your right, I'll try a 3rd and 4th gear pull with traction control off
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08 335xi e92, JB4 g5, Afe s2 DCI/scoops, AR catless dps, Helix FMIC, H&R sport springs
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