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      10-27-2012, 01:29 PM   #2
CJ421
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Drives: 2011 E92 335i
Join Date: Feb 2011
Location: PA

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2011 BMW 335i  [4.66]
I can share some data but nothing formal with my N55.

My coolant temperature went from ~253*F after a session to 205*F with the ETS 5" intercooler (track conditions: sunny/humid, 90-100*F). Measured via the readout on my BMW Performance electric steering V2.

In terms of feel; I had no overheating with the stock intercooler but the throttle responsiveness would taper off throughout the session. It wasn't too bad because the intercooler has time to partially recover on the long straightaways at the tracks I visit, but it was there. The responsiveness is noticeably better with the ETS intercooler; I've yet to have it heatsoak to the point where I notice lag. It was a nice upgrade.
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2011 BMW E92 335i, 6MT, Le Mans blue - Quaife LSD, JRZ RS Pro, JRZ camber plates, Eibach ERS, full M3 susp, custom toe arms, Powergrid end-links, SS brake lines, brake ducting, Michelin PSS, UUC SSK, ETS FMIC, ER CP, Perf. Exhaust, VAC RSIK, Sparcos; work by VAC Motorsports in Philadelphia

Last edited by CJ421; 10-27-2012 at 01:34 PM.