06-20-2017, 10:03 PM | #1 |
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To those of you tracking your FBO 335's...
Looking for some advice from those of you that have upgraded your intercooler. Which brand did you go with and why?
I'm running a JB4, and I've found that even on just Map 2 and 93 octane fuel, I am heat soaking in the later sessions. I can see/feel the JB pulling boost and timing. I would like to be able to run E40 on Map7 for future track days, so I need a larger intercooler. On the street the OE one is fine for a few pulls but will heat soak shorty after. I'm leaning towards the VRSF intercooler because of it's price. Anyone with any firsthand experience?
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06-21-2017, 07:32 AM | #2 | |
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06-21-2017, 09:26 AM | #3 |
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Actual tracking, I frequent Pocono Raceway a couple times throughout the summer. I'm hoping to make it to NJMP too this summer.
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06-21-2017, 12:09 PM | #4 | ||
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Running a car at 7/10ths+ for multiple 20-30 minute sessions is a different animal than most FBO users who are just doing a quick 20 second straight line pull at most. Your use case is going to be exceeding the engineering envelope of the car with far higher frequency than most other owners. |
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06-25-2017, 07:37 AM | #5 | |
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06-25-2017, 07:52 AM | #6 | |
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I placed an order for Pure stage 2, so I'll make more power reliably with less boost. |
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06-25-2017, 09:09 AM | #7 | |
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07-13-2017, 11:18 AM | #8 | |
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i believe the "best" intercoolers are wagner and ambient thermal management. not sure better performance (if any?) is worth the price. the ambient thermal management looks the nicest however i'm not sure if it performs as good as it looks... just read the wagner evo2 competition (tube fin/light weight), may be the "best". they're all better than stock, just depends how hardcore you are and how much you want to spend. i have a cts turbo fmic and ftp charge pipe which i have yet to install so i can't give you any real opinion of it Last edited by alohasurftoad; 07-13-2017 at 11:47 AM.. |
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08-01-2017, 07:51 PM | #9 | |
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These tunes arent really made for circuit racing. I had a full bolt on 435i with an upgraded intercooler and upgraded oil cooler but I always ran map 0 at the track. Chances are, unless you are a professional, you wont be able to use the extra power unless you are maxing out the car I track multiple times a month and I would advise to never run JB4 on the track. The stock tune with 93 octane is all you need I eventually got bored of map 0 so i went and got an m4 lol
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08-02-2017, 08:31 AM | #10 | ||
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+1. If you're actually tracking your car, all roads lead to an M car. And then an M car leads to a P car... |
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08-07-2017, 02:37 PM | #11 | |
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My 335i is pretty well modded at this point (intake, charge pipes, DP, exhaust... plus coil overs, f/r control arms, ASBs, LSD, etc.), but the last couple things I've been considering are a mild flash tune, and a Wagner FMIC. My goal with the flash tune would be to tweak throttle mapping so it's more linear (similar in Sport/Sport+ to Comfort), instant throttle response, and a little more headroom at high rpms... I'm open to a bit more boost, but nothing that would push it in terms of reliability at the track. To date, even on hot days at Summit Point, WV, going hard in the Adv run groups, the only engine issue I've had was the stock charge pipe fitting failing (which killed boost, and instantly turned me into a big momentum car ; )
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08-07-2017, 07:07 PM | #12 | |
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08-28-2017, 03:39 PM | #13 |
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No doubt BM3 is as more complete package, but my JB4 did just fine the last few times I tracked the car. Later sessions I could feel it pulling boost due to heat soak, but that's exactly what you want your tune to do given those conditions. I see no reason to run without it, especially on a big track like Pocono.
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