07-20-2020, 09:07 AM | #1 |
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0-60 and 1/4 mile times for M340xi with Tunes
Does anyone have real numbers on what a tune will do for a M340xi?
I’ve seen tons of dyno results but no before and after 0-60 and 1/4 mile. I’m seriously looking at the Mission Stage 2 and would love to see some track data |
07-20-2020, 01:44 PM | #3 | |
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Last edited by chenry; 07-20-2020 at 01:53 PM.. |
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07-20-2020, 01:48 PM | #5 | |
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07-20-2020, 01:52 PM | #6 |
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not much - my car is putting down a conservative 463 wheel with a catted DP - I've seen Alex with M340's on the dyno 100% stock putting down 470+ .
While I'm sure it helps with time to spool - I don't personally think with a stage 1/2 it's a drastic difference. Last edited by chenry; 07-20-2020 at 01:57 PM.. |
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07-20-2020, 01:53 PM | #7 |
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Did you upgrade and space your spark plugs?
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07-20-2020, 02:03 PM | #8 |
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No and yes - my car came from the factory with NGK plugs and given I had less than 1000 miles on the car (meaning plugs were almost new) I simply regapped my oem plugs to 0.022.
Interesting thing with re-gapping the plugs. On my last car (a 340) I had the car tuned (stage 2 MP) for several thousand miles and a couple autoX events before I regapped the plugs so I had some decent seat time to compare before and after. I didn't really think I would notice a difference - figured it was more for engine health than anything - but I did. While the car was really great before it was just a little better with the plugs gapped - the power delivery was a bit smoother and the overall pull was a little bit more linear. I was pleasantly surprised |
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07-20-2020, 03:18 PM | #9 | |
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I really really appreciate your feedback on this. Extremely helpful |
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07-20-2020, 03:31 PM | #10 | ||
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no we didn't know until we pulled a plug - my car was a pretty early build so i got lucky with the plugs |
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07-27-2020, 12:43 AM | #11 | |
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11,87 on 1/4mile with JB4, meth, DP. Had just removed BMS intake back to stock. At altitude! Not the coast |
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08-12-2020, 02:27 PM | #13 |
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Holy hell. That is probably the fastest M340i time I've seen so far! Details on the mods?
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08-12-2020, 02:50 PM | #14 |
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Oh I was expecting to see a video of some 0-60 runs with hard rockin' tunes in the background!
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08-15-2020, 05:51 PM | #17 |
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08-15-2020, 10:10 PM | #18 |
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Holy balls that's quick
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08-26-2020, 02:21 AM | #19 |
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08-30-2020, 03:47 AM | #21 |
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This was on 23psi, turned the wick up since then.
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08-30-2020, 09:27 AM | #22 |
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