06-21-2018, 05:04 PM | #1 |
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VRSF intercooler installed on N55 X3
Managed to install the updated VRSF Street HD front Mount intercooler for F30. Custom fabbed brackets (3/4 inch tubing) to accommodate the single bolt opening and slightly lower position. Not the smoothest or prettiest but they are fully functional!
I weighed the stock iC @ 9 lbs and the vrsf @ 18.4 lbs Props & thanks to FSociety, hardparker, ThomasR http://x3.xbimmers.com/forums/showth...1355232&page=5 Last edited by E90705; 06-21-2018 at 06:06 PM.. |
06-22-2018, 12:25 PM | #2 |
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Awesome! I think i'm going to do this exact thing shortly... any other advice?
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06-22-2018, 03:43 PM | #3 |
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Take your time and make sure you have all the appropriate tools to complete. And a steady hand helps to with cutting metal. If you haven’t been under the car before it will look like a mess. I’d do the charge and boost pipes prior to beginning. Makes bolting up the end tanks much easier as your more familiar with the installation process.
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06-22-2018, 07:04 PM | #4 |
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After couple days, did some logs. It was 61 degrees F, 85% humidity and cloudy.
1st pic shows around 2,500 rpm before the 4th wot pull. IAT 79F 2nd pic is almost at redline. IAT 93F 3rd pic is cruising for about a minute after. IAT 84F Waiting til it gets above 90F next week to see how IAT’s are then. |
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06-22-2018, 08:10 PM | #5 |
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Thanks for the tip! I did full FTP charge pipe and boost pipe last weekend and I come from a long line of doctors so I have the steady hand covered! What tools did you use? Where did you get your 'bracket' material from?
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06-24-2018, 10:25 AM | #6 |
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Nice to see some one else posting logs as well
Try to get a 0-120mph log or so as IAT start rising in multiple gears
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06-25-2018, 07:15 AM | #7 |
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I used a multi-tool and any hardware store with square metal tubing is the material.
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06-25-2018, 07:24 AM | #8 |
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Ambient temps were slightly higher with this log, curious to see how this performs vs the CTS.
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06-25-2018, 11:05 AM | #9 |
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Digging up some logs from most recent hot days
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06-27-2018, 04:54 PM | #10 |
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Today was hot ish , 83F Ambient and sunny. IAT starting at: 115F After redline: 135F 30 secs coasting: 124F |
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06-27-2018, 09:10 PM | #11 |
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What tune ?
How much boost are you pushing through ? That will also be a big factor with IAT More boost more heat
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06-27-2018, 09:35 PM | #12 | |
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Quote:
Peak Boost target 16-18 psi. mods: ftp pipes, catless DP, this intercooler. And mhd ots stage 2 plus tune. Last edited by E90705; 06-27-2018 at 09:41 PM.. |
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06-27-2018, 09:39 PM | #13 |
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Post 2 or 3 logs of Wide Open Throttle (air flowing) because if you let go of pedal IAT usually are not performing as they would under throttle.
1st pic around 3500-4krpm 2nd pic around 5-5500rpm 3rd pic 6-6500 rpm
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06-27-2018, 10:15 PM | #14 |
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👀
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06-27-2018, 10:16 PM | #15 |
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Much better thats what I thought and I had same results
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06-27-2018, 10:19 PM | #16 |
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06-28-2018, 05:38 PM | #17 |
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Thanks a lot for taking the time to post logs. We'll have these brackets available to order as a separate F25 option and we'll be offering a slightly larger core in the next few weeks
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06-29-2018, 03:55 PM | #18 |
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So my last logging/testing this intercooler.
Scorching hot summer day with heat advisory. 96F. ☀️ and 69% humidity. IAT starting after about 30 mins of driving and stop and go traffic. IAT lingered around 118F-130F ish. It would go up and down. First beginning log IAT 126F 2700 rpm. To almost redline IAT 129F Peak IAT 142F Went back down to 131 about 30 seconds after WOT pull. |
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07-03-2018, 06:07 PM | #20 |
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07-03-2018, 07:10 PM | #21 |
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What tune do you have? Does it automatically adjust for the fact that you now have a bigger FMIC, and up boost, etc. so you get more power?
Same with if one gets DP's too. With my old Cobb tune for my 335, you'd pick the Stage 1 tune if you had no extra hardware, stage 1+ with a FMIC or 2 with DP's, and 2+ with both. With a piggyback tune like JB+ or Racechip, I don't think you can do any of that, other than just upping boost (see Racechip manual below), and I don't think either one can automatically adjust for hardware? *** What about the JB Stage 1 or JB4? http://www.burgertuning.com/stage_1_...ce_tuners.html http://www.burgertuning.com/N55_JB4_...BMW_tuner.html I don't want to add hardware if the tune can't fully take advantage of it. |
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07-03-2018, 07:46 PM | #22 | |
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Quote:
All Stage1 tunes are meant for stock cars, but BM3 there's an option to use any map and turn/on off the CEL for catless DP. All Stage2 tunes are meant for cars with Downpipes and FMIC Correct piggyback will not be the best because they only add boost, where the flash adjusts more parameters for better performance.
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