Rev Limiter
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- Carter
- Posts: 29
- Joined: Tue Oct 21, 2008 4:31 pm
- My Bike: Ducati 1098s, zxr 400 H1
- Location: Hull
Rev Limiter
i know that you can over ride the rev limiter in the speedo but does it have any consequence on the running if you remove it all together? i don't have to do anything else other than unplug it do i?
Life is like a grind stone; it'll grind you down or polish you up, depending on what you're made of.
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- Posts: 222
- Joined: Thu May 26, 2005 10:50 am
- My Bike: ZXR400 , ZXR950
- Location: Australia
Re: Rev Limiter
all this has been answered many times before in many threads.
check out "SPEEDO CLOCKS" thread.
you can not just disconnect it. you need to insert a resistor. If you need I can post out what you need for 5 pounds or can modify your CDI internally to derestrict it. The cheapest alternative is to do it yourself, just get a 10 K ohm resistor of 1 watt rating and pull it to gnd. cheers
regards TK400
check out "SPEEDO CLOCKS" thread.
you can not just disconnect it. you need to insert a resistor. If you need I can post out what you need for 5 pounds or can modify your CDI internally to derestrict it. The cheapest alternative is to do it yourself, just get a 10 K ohm resistor of 1 watt rating and pull it to gnd. cheers
regards TK400
- Carter
- Posts: 29
- Joined: Tue Oct 21, 2008 4:31 pm
- My Bike: Ducati 1098s, zxr 400 H1
- Location: Hull
Re: Rev Limiter
tk, you out there sent ya a message.....how important is the 1 watt bit? can only get 0.6 0r 2. cheerstk400 wrote:just get a 10 K ohm resistor of 1 watt rating and pull it to gnd. cheers
Life is like a grind stone; it'll grind you down or polish you up, depending on what you're made of.
- RedexRobB
- Site Admin
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Re: Rev Limiter
the 0.6watt will probably be fine as your not pulling mega amounts of current, but 2 watt will do that job no problem. All it means is how much current you can pull through for a given voltage, VxI = P
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Re: Rev Limiter
Sorry for the delay. yeah 0.6 watt would be fine for the 10K ohm. But 1 watt minimum for the 100 ohm ignition switch by pass. I only suggested the 1 watt for the 10K ohm as its more sturdy and easier to reliably graft into the harness. cheers
regards TK400
regards TK400
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Re: Rev Limiter
how high can the revs go if there is no limiter,
i dont quite understand,you plug out the speedo and insert something else?is this correct ?
or else modify the cdi unit,which will have the same effect.?
please help
i dont quite understand,you plug out the speedo and insert something else?is this correct ?
or else modify the cdi unit,which will have the same effect.?
please help
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- Posts: 222
- Joined: Thu May 26, 2005 10:50 am
- My Bike: ZXR400 , ZXR950
- Location: Australia
Re: Rev Limiter
the speedo has an trip circuit that cuts in at 180Kph due to japanese law. So that people just could not disable it by removing the plug, they made it restrict RPM if unplugged hence one way or the other you were not going to exceed 180. However due to the simplicity of the circuit it is easily satisfied using a resistor as discussed above.
Once this is done the standard rev limit applies which depends on the CDI you have. As for modifying the CDI this is just internally bypassing the external speedo circuit. I can do this while doing other work on the CDI. cheers.
regards Tk400
Once this is done the standard rev limit applies which depends on the CDI you have. As for modifying the CDI this is just internally bypassing the external speedo circuit. I can do this while doing other work on the CDI. cheers.
regards Tk400
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- L-plate hell
- Posts: 285
- Joined: Fri May 18, 2007 8:33 am
- My Bike: zxr 400 h1
- Location: Norwich , norfolk
Re: Rev Limiter
is this something just for top end restriction. My H1 revs lovely up to 15k so presume its been de-restricted as ive heard importsd only go to 10k.
But, just reading the bit about the 180kph, mine seems to cut back a bit when i get to that speed, just thought it was as fast as it can go??
DO i do this to raise my top end at all?
But, just reading the bit about the 180kph, mine seems to cut back a bit when i get to that speed, just thought it was as fast as it can go??
DO i do this to raise my top end at all?
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- zxr400 oc member
- Posts: 284
- Joined: Sun Mar 09, 2008 9:46 pm
Re: Rev Limiter
tng21 wrote:is this something just for top end restriction. My H1 revs lovely up to 15k so presume its been de-restricted as ive heard importsd only go to 10k.
But, just reading the bit about the 180kph, mine seems to cut back a bit when i get to that speed, just thought it was as fast as it can go??
DO i do this to raise my top end at all?
no the rev limiter is there if you remove the cable that comes out of the rear fo the clocks. all imports are restricted to 180kmph , easiset fix is just get a mph converter that goes on the cable