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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Maybe one of the Fastest F30 0-100km/h acceleration 3.27s
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      10-20-2017, 01:17 PM   #23
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Originally Posted by stormlv View Post
Awesome time! Congrats!

Small note: the GPS is 10Hz not 10GHz
Thank you for your correction
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      10-20-2017, 01:18 PM   #24
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Originally Posted by razzy530 View Post
that engine won't last very long.
Runing this power for 1.5 year, only changed one fuel injector
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      10-20-2017, 01:19 PM   #25
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Originally Posted by kern417 View Post
Nice time.

Easiest ways to reduce weight:
Go down to a quarter tank of fuel
Remove rear seats
Remove trunk Lining
Remove catback

If you get really serious, definitely swap smaller brakes/wheels. Find a salvage 320i and take the set off of it.
Thank you for pointing out the importance of rotational weight
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      10-20-2017, 01:28 PM   #26
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honestly thats a good time and all but my 320i with stock run flats(75% tread) runs this time..
320i? what hp?
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      10-20-2017, 01:29 PM   #27
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Originally Posted by Extirpate View Post
That's some serious speed man, congratulations
Thank you very much!
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      10-20-2017, 05:37 PM   #28
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Quote:
Originally Posted by Mike. View Post
honestly thats a good time and all but my 320i with stock run flats(75% tread) runs this time..
320i? what hp?
800 hp plz see dyno sheet
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      10-21-2017, 07:54 PM   #29
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Originally Posted by jnecr View Post
It's more than just absolute weight though. It's also about Rotational Inertia, which the 20" wheels will have a much great moment of inertia than 17" wheels even given the exact same weight.

If he's really searching for 1/4 mile times then those brakes need to go as well. He'd probably save 50 lbs just dropping down to base calipers, then another 20-30lbs dropping down to base size rotors. This doesn't even factor in the lower moment of inertia on the smaller rotors..

Edit: I'm guessing he'll find much better drag tires with smaller wheels as well. Proper drag tires will help his time more than any weight savings.
if he could find some 15lb 17s with some 255/45 tires (or better if he can fit them) and drop the pressure to ~20psi, he'd be in the 10's. just let the x-drive do the rest.
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As long as 3-pedals are an option, I will exercise my right to suffer the handicap and indignity of slower shifts and reaction times.
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      11-06-2017, 05:17 PM   #30
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what's the weight without the driver?
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      11-06-2017, 11:18 PM   #31
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Quote:
Originally Posted by kern417 View Post
Nice time.

Easiest ways to reduce weight:
Go down to a quarter tank of fuel
Remove rear seats
Remove trunk Lining
Remove catback

If you get really serious, definitely swap smaller brakes/wheels. Find a salvage 320i and take the set off of it.
Dude is in China, the last thing he should do is remove the catalytic converter!!! :
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      11-07-2017, 07:27 AM   #32
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Dude is in China, the last thing he should do is remove the catalytic converter!!! :
i said catback, not catalytic converter. but even then, i think we can manage if he just removes it for 11 seconds lol
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