04-27-2016, 08:36 AM | #45 | |
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04-27-2016, 10:36 AM | #47 |
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Wow, 388/393 with hp peaking 400 rpm before redline is so exactly perfect.
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04-27-2016, 03:03 PM | #49 | ||
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This is with an aftermarket down pipe with a bench flash at 17 psi. |
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04-27-2016, 04:41 PM | #50 | |
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04-27-2016, 10:11 PM | #51 |
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My biggest question is how motor longevity is affected by a boost pressure increase to 20psi? I would think that the internals would need to be modified at some point in order to ensure reliability over a long period of time.
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04-28-2016, 02:58 AM | #52 |
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Blue,
Given that M2 chargepipe is same as M235i, this will fail at ~20psi well before you wreck your engines guts !!! BP
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Fettled M135i EB AT then AW M2 DCT - both gone but not forgotten:
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04-28-2016, 09:33 AM | #53 | |
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04-28-2016, 11:06 AM | #54 | |
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There's still a lot we don't know about the turbocharger, and there are a lot of open questions, so until a tuner tears one down and takes measurements, we won't have a good idea of the turbocharger mechanicals. We can infer from the limits though. If tuners are topping the turbo out (in terms of boost), that means it's at its limit. That's not good for longevity. Honestly, if you really care about longevity, just drive the car stock. The M2 is plenty fast. The real benefit is in the handling, which sounds superb.
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04-28-2016, 11:19 AM | #55 | |
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05-01-2016, 11:24 AM | #58 |
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Yeah, a turbo swap is always an option, but you're looking at a pretty big leap in commitment from a price perspective. A tune is a few hundred dollars, while a turbo is thousands. I do agree that the N55 + turbo swap has been a fantastic platform though, so on that insight.
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05-01-2016, 09:04 PM | #59 | |
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05-02-2016, 09:35 AM | #60 |
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I am still planning on going stage 2, but honestly the more I drive it the more I appreciate the wonderful balance that the car has between sheer power and playfulness. I think even a flash tune for 390whp would be just perfect if it held power to redline; there is something to be said for the a nice match between power and the chassis.
The M2 is already significantly faster than most cars with equivalent horsepower due to the DCT and the way it puts power down. It feels quick. I think a Pure Stage 1 will prove to be a very popular option for this platform. The really nice thing about this flash tune dyno chart I like is that power doesn't fall off even near 7krpm. Last edited by paradoxical3; 05-02-2016 at 09:49 AM.. |
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05-02-2016, 10:42 AM | #61 | |
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05-02-2016, 12:25 PM | #62 |
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WUT!? Damn, that is an amazing price point.
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05-08-2016, 07:37 PM | #65 |
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It was raining and foggy that entire weekend. Unfortunately we did not participate.
Last edited by TTFS; 05-09-2016 at 10:18 AM.. |
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05-11-2016, 05:01 PM | #66 |
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Here is our most recent dyno done last night with 21 Psi on 93 pump gas with downpipe and ECU tuning. We plan on upgrading the intercooler and perhaps turbo later. The first run were done back to back starting with green, light blue, and last run was orange.
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