Thread: Alex Alpine ECU Tune
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      03-30-2018, 05:13 PM   #191
Alex@Alpine
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Drives: E90 M3
Join Date: Feb 2010
Location: United States

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Originally Posted by ///M3Fresh View Post
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Originally Posted by M3ANMACHINE View Post
Personally i am not a huge fan. The burbles sound artificial and don't quite fit the car in my opinion.

Lastly, wanted to mention, went thru my first full tank of gas on this time and picked up an easy 1.5-2mpg with zero change to my normal driving habits! Love it!
I go in swings, under the lowest RPM's and it does it once or twice I love it, but when its aggressive and its like someone empting out a 30 round magazine its annoying.

Good to hear on the increase in MPG! Means more down low tq!


Quote:
Originally Posted by Alex@Alpine View Post
I generally have a practice of not comparing to other companies.

The basic idea is to mist unburnt fuel into the exhaust.

Problems with drivability can factor from multiple things including your exhaust setup, injectors, spark plugs and etc. Most of my customers with great success have been straight piped. Keep in mind the E9X is a low pressure (non injected) fuel system compared to the F8X that are direct injection high pressure fuel system. On a low pressure fuel system the injectors spray fuel onto intake valves so therefore if the spray times get adjusted to aggressively, it can backfire into the intake plenum and damage it since it's made out of plastic. On direct high pressure fuel injection systems, it can be adjusted more to mist and won't cause any damage. I always side with caution vs squeezing out the last bit of power or in this case sound effects. If you ask any customer here I always cover the basics with everyone; like hey did you get your bearings checked.

IMO burbles for this platform should not be for a daily driver, just for a quick weekend show off.
Thanks for the follow-up. I am aware, I've had you do some coding on a few of my vehicles and you are up front from the start! Like I said I am was looking for a general idea from those with the over-run feature. Definitely isn't for everyone.
Sounds good, good luck
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