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Old 13th August 2007, 23:13   #1
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Question Speed Locks in bikes

Hi,
i have heard recently that all the company sold bikes have a Speed lock fitted into them and if we are able to remove it we can reach great speeds on lower gears even.....So i would like to know whether this is true or not....And is the REV-LIMITER the same thing......And if its tru then how can i remove it from my Honda Unicorn....Will this have any adverse effect on the performance??
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Old 14th August 2007, 00:55   #2
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As far as i know there is no such thing, called speed lock. Especialy for indian bikes. If your are talking about Revlimiter, it's used to stop engine from over reving which leads to serious damage to the engine. Of course there are Speedlimiters , but they are only used in Superbikes.
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Old 14th August 2007, 14:00   #3
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Yes they are called revlimiters. Good to have them if you arent a speed freak.
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Old 14th August 2007, 16:12   #4
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Does you Unicorn goes till 9500rpm in 5th gear?

If no then there will be no use of removing the revlimiter. If it does hits the rev limiter in top gear, then you should concentrate on sprocketing to get a better top end.

Ps. to remove the revlimiter, you need to get a custom CDI made.
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Old 19th February 2010, 05:03   #5
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i think removing the accelerator sensor will do the job
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Old 19th February 2010, 16:50   #6
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Quote:
Originally Posted by yogesh sarkar View Post
Does you Unicorn goes till 9500rpm in 5th gear?

If no then there will be no use of removing the revlimiter. If it does hits the rev limiter in top gear, then you should concentrate on sprocketing to get a better top end.

Ps. to remove the revlimiter, you need to get a custom CDI made.
Sprocketing for a better top end on a Unicorn won't work. Higher gearing without a bump in power will make you go slower, not faster. So, don't bother.

About removing the rev limiter for the Unicorn, there are a few chaps in Malaysia/Singapore who sell them. Will check and let you know.

That said, removing the rev limiter is not an intelligent thing to do, especially since the gains involed might not last more than a few overrevs. It is there for a purpose, and the purpose is to prevent the engine exceeding it's safe rpm beyond which all hell could break loose in the engine.

Cheers,

Jay
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Old 19th February 2010, 17:16   #7
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Please don’t try this you may risk your engine life/performance.
A rev limiter is a device fitted to an engine to restrict its maximum rotational speed. This is usually carried out to prevent damage to the engine, however sometimes these devices are fitted to prevent an engine reaching the point at which it develops maximum power.
Rev Limiters prevent damage to an engine by interrupting the power that is distributed to the spark plugs, this prevents the engine from operating above a pre-determined RPM level known as the red-line.
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Old 19th February 2010, 21:00   #8
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thread starter might have finished with whatever he wanted. This' a 2 yr old thread dug up for what?
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Old 19th February 2010, 21:54   #9
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Quote:
Originally Posted by sreerama View Post
i think removing the accelerator sensor will do the job
What on earth is a Accelerator Sensor
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Old 21st February 2010, 14:50   #10
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I think he means a TPS (throttle position sensor), although it won't have any effect whatsoever
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