Reduce power

Discussion and support for MoTeC's previous generation ECUs.

Reduce power

Postby sphilips on Thu May 15, 2014 7:08 am

We race a 1000cc motorcycle. I want to reduce power in the lower gears because it is impossible to give full throttle without wheelies. Thus the TC grabs in. I think it s better to reduce the power. But how can I achieve this the best way?
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Re: Reduce power

Postby David Ferguson on Thu May 15, 2014 7:13 am

I would suggest just reducing the ignition timing as the best way to reduce the power.
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Re: Reduce power

Postby sphilips on Thu May 15, 2014 7:35 am

And by how much degrees?
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Re: Reduce power

Postby stevieturbo on Fri May 16, 2014 3:34 am

sphilips wrote:And by how much degrees?


Trial and error.
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Re: Reduce power

Postby sphilips on Mon May 19, 2014 7:12 am

Anyone that uses this way to reduce power in the lower gears?
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Re: Reduce power

Postby Scott@FP on Tue May 20, 2014 9:29 am

If gear detection is already set up correctly it would be simple to set up an ignition comp, X axis RPM, Y axis gear or MPH.
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Re: Reduce power

Postby Holmz on Tue May 20, 2014 8:32 pm

Retarding the ignition by 20 degrees will likely put some energy (heat) into the exhaust, which may not be desired.

Does it have a cable throttle or DBW?
Either way, the controller of the throttle is a classic way to limit power.
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Re: Reduce power

Postby sphilips on Wed May 21, 2014 8:12 am

gear detection is correctly setup. I'll try this.

It uses a classic cable. Honda cbr1000rr 2012 model.

In the hrc unit there is a way off limiting power in the lower gears. This is used to temper the power and making the drivers life a bit easier.

Now the TC is cutting in all the time because the front wheel is lifting alot. So I thought it would be beter to reduce the power and lower the chance of making a wheelie.
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