Speed de-restrictor ponderings

R1000K3 · 07-10-2009, 05:08 AM

Has any member been thinking on, or even tried to remove the speed limiter DYI? It is common to calibrate bikes speedo meter after change of gearings by a so called Speedohealer.

http://www.pashnit.com/product/speedohealer.html

It may perhaps be possible to fool the 335i ECU the car is running e.g. 10 % slower than it does, thus raising the top speed by 10%?

Zeph · 07-10-2009, 07:59 AM

I wouldn't want to de-calibrate my speedo in order to get a few more top speed mph's. I can't imagine many would?

R1000K3 · 07-10-2009, 08:50 AM

I foresee a top speed improvement of about 20 mph on a JB+ car, but it is not the nicest solution around. The complex functionality of the ECU may also hinder a cheap and dirty trick like this.

David1 · 07-10-2009, 09:50 AM

You can't trick the car. It picks up road speed multiple ways.

vladster · 07-10-2009, 09:57 AM

Funny I have a 335i 2006 completly stock without the speed limiter I'm doing almost 280km/h

R1000K3 · 07-10-2009, 10:46 AM

That's why you end up in gravel :-) Damn fast car, Congrats !

vladster · 07-10-2009, 03:26 PM

I just don't understand why my car doesn't have a limiter

07-10-2009, 05:08 AM	#1
R1000K3 Major 56 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	Speed de-restrictor ponderings Has any member been thinking on, or even tried to remove the speed limiter DYI? It is common to calibrate bikes speedo meter after change of gearings by a so called Speedohealer. http://www.pashnit.com/product/speedohealer.html It may perhaps be possible to fool the 335i ECU the car is running e.g. 10 % slower than it does, thus raising the top speed by 10%?
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07-10-2009, 07:59 AM	#2
Zeph Major 27 Rep 1,410 Posts Drives: 2008 E92 335i 6MT SGM CR/BD Join Date: Jul 2008 Location: Southeast USA iTrader: (0)	I wouldn't want to de-calibrate my speedo in order to get a few more top speed mph's. I can't imagine many would?
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07-10-2009, 08:50 AM	#3
R1000K3 Major 56 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	I foresee a top speed improvement of about 20 mph on a JB+ car, but it is not the nicest solution around. The complex functionality of the ECU may also hinder a cheap and dirty trick like this.
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07-10-2009, 09:50 AM	#4
David1 Brigadier General 814 Rep 3,953 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	You can't trick the car. It picks up road speed multiple ways. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
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07-10-2009, 09:57 AM	#5
vladster Private First Class 12 Rep 190 Posts Drives: BMW 335 ci Join Date: Mar 2007 Location: Slovenia iTrader: (0)	Funny I have a 335i 2006 completly stock without the speed limiter I'm doing almost 280km/h
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07-10-2009, 10:46 AM	#6
R1000K3 Major 56 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	That's why you end up in gravel :-) Damn fast car, Congrats !
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07-10-2009, 03:26 PM	#7
vladster Private First Class 12 Rep 190 Posts Drives: BMW 335 ci Join Date: Mar 2007 Location: Slovenia iTrader: (0)	I just don't understand why my car doesn't have a limiter
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