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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Pure s2 n55 thoughts?



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      05-29-2015, 02:25 PM   #1
deemarr 335i
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Pure s2 n55 thoughts?

Ran a stage 3 b5 s4 and jb4 dct m4 on pump and lost to both(3 cars by 130) with my FBO/backend flash stg2 n55 e90 manual on 17.5 psi across the board....sounds about right ?......ordered the dv+, plugs and stg2 fuel pump from Steve and n20 tmap...... I had one passenger they had none, M4 might have had dps was really loud.

Also me and the m4 ran it again wit no passengers and he got me by like 2 cars. Pure stage 2 is the truth, don't even bother with stage 1 lol.
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      05-29-2015, 02:36 PM   #2
weehe126
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At 17.5 psi im guessing you are at ~460-475whp? So sounds about right.
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      05-29-2015, 02:53 PM   #3
deemarr 335i
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Aight cool.....after n20 tmap I'll run again
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      05-29-2015, 03:43 PM   #4
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Originally Posted by weehe126 View Post
At 17.5 psi im guessing you are at ~460-475whp? So sounds about right.
at 17.5 psi id guess 430-450 depending on fuel and a few other things dct M4 with jb4 is 480-530 whp. sounds right for sure turn that boost up to 20-23 re run him
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      05-29-2015, 03:46 PM   #5
deemarr 335i
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Originally Posted by Newguy123 View Post
at 17.5 psi id guess 430-450 depending on fuel and a few other things dct M4 with jb4 is 480-530 whp. sounds right for sure turn that boost up to 20-23 re run him
Will do.....I had a a 60/40 e85 mix
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      05-29-2015, 04:00 PM   #6
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original clutch and flywheel??
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      05-29-2015, 04:05 PM   #7
deemarr 335i
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original clutch and flywheel??
Stock flywheel/335is clutch
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      05-30-2015, 09:20 AM   #8
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Wait I'm confused, so you already have stage 2? Sorry I'm on the mobile app can't see sigs lol

My boy has the stage 2s and it's no joke
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      05-30-2015, 12:15 PM   #9
deemarr 335i
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Wait I'm confused, so you already have stage 2? Sorry I'm on the mobile app can't see sigs lol

My boy has the stage 2s and it's no joke
Yea that shit pulls lol
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      05-30-2015, 12:41 PM   #10
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Quote:
Originally Posted by deemarr 335i
Quote:
Originally Posted by 924er View Post
Wait I'm confused, so you already have stage 2? Sorry I'm on the mobile app can't see sigs lol

My boy has the stage 2s and it's no joke
Yea that shit pulls lol
So you did have stage 2 and still lost ?
I mean the m4 with jb4 is crazy fast tho
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      05-30-2015, 03:22 PM   #11
deemarr 335i
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Originally Posted by 924er View Post
So you did have stage 2 and still lost ?
I mean the m4 with jb4 is crazy fast tho
Yea but I was on low boost 17psi
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      05-30-2015, 10:53 PM   #12
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Manual vs dct plays big part .. And then 17psi isn't enough to pull on jb4 m4 I guess you'll need to be at least 22-23psi being manual to Yank on modded m4 ..
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      05-31-2015, 01:18 AM   #13
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Quote:
Originally Posted by ShlemonboostedM
Manual vs dct plays big part .. And then 17psi isn't enough to pull on jb4 m4 I guess you'll need to be at least 22-23psi being manual to Yank on modded m4 ..
Yup being manual makes a big difference.
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      05-31-2015, 02:44 PM   #14
deemarr 335i
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Quote:
Originally Posted by ShlemonboostedM View Post
Manual vs dct plays big part .. And then 17psi isn't enough to pull on jb4 m4 I guess you'll need to be at least 22-23psi being manual to Yank on modded m4 ..
This is tru.....just found out my boost solenoid jb4 connection was loose smh, car holds 20psi to redline now no problem, slight missfire tho at 6500rpm so I'm gonna back it down to 19psi till I get my stage 2 lpfp and ngk plugs installed next week. Car is a beast now
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