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seroga1986's Avatar
seroga1986 seroga1986 is offline
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Car: 135i
Default Give me some input on 7.5" RACE intercooler for stock turbos - 01-26-2018, 08:32 PM

Pushing stock turbos to the limit and the 7" i have now is just not enough. Will the 7.5" RACE be too big for stock turbos? Any cons of having one with stock turbos? I do have few track events and i think this will be a game changer for long sessions reducing timing drops and knock.


2008 135i Sport 6at
JB4 G5 ISO, MHD E85 KR, Fuel-it S1, E55 Mix, Alpina Trans Flash, afe Scoops, My own custom 2.5" inlets, ER CP, Synapse BOV, 3.5 Tmap, 7.5" Phoenix FMIC, NGK 5992, 3" BMS downtubes, N55 Mids, Berk Race, BMS OCC, 48 plate oil cooler, 36 plate trans fluid cooler, PSS, R888, Hoosier DRs.
11.92@123.6 (JB4 ISO, DCI, IC, **, DR, on e45 & 17psi)(2013)
444whp/481wtq @19psi and e60 (2013)

2013 X3 xDrive28i M-package
JB4, K&N drop-in, ER downtube, Map 2 @ 22psi on 93
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N54QC N54QC is offline
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Car: 07 BMW 335i
Default 01-26-2018, 09:39 PM

Well I kind of think you already decided before this post but if your 7" isn't cutting it, you either have to go bigger or do something like meth to keep IAT's down.


VTT Stage 2+ | JB4 G5 w/ Trebila BEF | Fuel-It Stage 3 | XHP Stage 3 | BL Coils | VTT Inlets | MMP Outlets | BMS Meth Dual 10/5CM | VRSF 7" FMIC | VRSF **'s | BMS CP | BMS DCI | Turbosmart Dual Port | 3.5 TMAP | BMS OCC | VTT PVC | BMS Anti-Lag | NGK 5992 | M3 Rear Upper Controls And Godspeed TB's | Lock-Down Brace | 235/285-18 PSS
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Cloud9Blue Cloud9Blue is offline
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Default 01-27-2018, 07:35 AM

Stock twins are very inefficient at the power level people like to run them these days, so actually a bigger fmic will benefit then more than a big single that is being run within it's efficiency island.


09 BMW E92 335i: EFR 7670 / Motiv / AP Racing / Wavetrac / TC Kline [Full Modlist]
07 BMW R1200S: Shine Yellow / Akrapovic / Ohlins
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seroga1986's Avatar
seroga1986 seroga1986 is offline
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Posts: 408
Join Date: Nov 2012
Car: 135i
Default 01-29-2018, 09:16 AM

Any noticeable lag with stock turbos and this 7.5 HD?


2008 135i Sport 6at
JB4 G5 ISO, MHD E85 KR, Fuel-it S1, E55 Mix, Alpina Trans Flash, afe Scoops, My own custom 2.5" inlets, ER CP, Synapse BOV, 3.5 Tmap, 7.5" Phoenix FMIC, NGK 5992, 3" BMS downtubes, N55 Mids, Berk Race, BMS OCC, 48 plate oil cooler, 36 plate trans fluid cooler, PSS, R888, Hoosier DRs.
11.92@123.6 (JB4 ISO, DCI, IC, **, DR, on e45 & 17psi)(2013)
444whp/481wtq @19psi and e60 (2013)

2013 X3 xDrive28i M-package
JB4, K&N drop-in, ER downtube, Map 2 @ 22psi on 93
Reply With Quote
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kennejp kennejp is offline
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Default 01-29-2018, 10:46 AM

Do you have the standard 7in or the 7in HD?


07 E92 MT RB Turbos-600whp
08 E82 Built engine/trans Speedtech ST 6466
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seroga1986's Avatar
seroga1986 seroga1986 is offline
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Posts: 408
Join Date: Nov 2012
Car: 135i
Default 01-29-2018, 11:00 AM

I have the 7" vrsf now. Upgrading to 7.5HD.


2008 135i Sport 6at
JB4 G5 ISO, MHD E85 KR, Fuel-it S1, E55 Mix, Alpina Trans Flash, afe Scoops, My own custom 2.5" inlets, ER CP, Synapse BOV, 3.5 Tmap, 7.5" Phoenix FMIC, NGK 5992, 3" BMS downtubes, N55 Mids, Berk Race, BMS OCC, 48 plate oil cooler, 36 plate trans fluid cooler, PSS, R888, Hoosier DRs.
11.92@123.6 (JB4 ISO, DCI, IC, **, DR, on e45 & 17psi)(2013)
444whp/481wtq @19psi and e60 (2013)

2013 X3 xDrive28i M-package
JB4, K&N drop-in, ER downtube, Map 2 @ 22psi on 93
Reply With Quote
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