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08-02-2011, 12:39 PM | #1 |
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Straight pipe power loss?
Would you guys agree that having straight pipes on the one with jb4, intake and cattless dps would cause a power loss on low end? It seems like it takes a lot longer for the turbos to spool up. In comparison, I used to run a jb+ with a rr exhaust and my car used to spin tires like crazy from a dig in first and second. What do you guys think?
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08-02-2011, 02:20 PM | #3 |
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I think it will lose some little power before the turbo kicks in. Our engine works like NA under 1200 RPM. But of course, once turbo kicks, that's another story.
Just my thought... Kcc
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08-02-2011, 02:36 PM | #5 |
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Is the JB4 in the auto learn mode? What setting you using? Also is your car warmed up when you WOT?
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BMW 135i/6 Speed/Montego Blue/Formula One Ceramic Tint/JB4 G4/AA Sport Intercooler/19 inch Iconz 880Z(19X8.5 & 19X10)/PSS 225/35 & 265/30/E93 M3 front sway bar/TRW front and rear Control Arms/BMS Drop In Filter/Dinan Exhaust/BlackLines/Upgraded \\\M RSFB |
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08-03-2011, 12:14 AM | #6 |
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yes, im running map 5 for auto tune but i dont think that its picking up on how quick it used to be. maybe since im running straight pipes i dont quite hear the sound. but im used to feeling the car sit sideways a bit off the line due to no lsd... but i do agree with losing low end and gaining high end since my friend said the same exact thing about his evo x. i guess i was just wondering if it applied and affected our cars as well.
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08-03-2011, 10:45 PM | #8 |
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try map 2 if you have 93 octane and see if it helps!
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BMW 135i/6 Speed/Montego Blue/Formula One Ceramic Tint/JB4 G4/AA Sport Intercooler/19 inch Iconz 880Z(19X8.5 & 19X10)/PSS 225/35 & 265/30/E93 M3 front sway bar/TRW front and rear Control Arms/BMS Drop In Filter/Dinan Exhaust/BlackLines/Upgraded \\\M RSFB |
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08-05-2011, 12:14 PM | #13 |
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Map 2 IMO!
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BMW 135i/6 Speed/Montego Blue/Formula One Ceramic Tint/JB4 G4/AA Sport Intercooler/19 inch Iconz 880Z(19X8.5 & 19X10)/PSS 225/35 & 265/30/E93 M3 front sway bar/TRW front and rear Control Arms/BMS Drop In Filter/Dinan Exhaust/BlackLines/Upgraded \\\M RSFB |
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08-05-2011, 02:33 PM | #14 |
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08-06-2011, 12:30 AM | #15 |
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well u should at least log map 1 and 2 and make sure your timing isnt droping( aka knock retard).......untill you do that then just run map 5 its protects you from knock,...is it really worth doing long term damage for 20-25 more hp.....log it and report back.....
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