Author Topic: Ignitor unit  (Read 353 times)

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Offline bwaller

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Ignitor unit
« on: February 12, 2019, 05:03:47 pm »
Hi guys, I've heard there are people out there that can make setting changes/repairs to OEM ignition units.

Namely the Suzuki GSX1100 box I'm using on the race engine, and I'd like to change the rev limit cutout.

I searched around but wonder if anyone could make a recommendation.
« Last Edit: February 12, 2019, 05:06:38 pm by bwaller »

Offline Rocketman

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Re: Ignitor unit
« Reply #1 on: February 13, 2019, 05:37:09 pm »
I used Carmo Electronics USA to repair the unobtainable CDI box for my RG.  The price was reasonable and it has worked flawlessly for 3 seasons.  They also have a European location.  Checked and one of the services they offer is to shift or remove rev limiters.

https://www.carmousa.com/index.php?main_page=index&pg=home&zenid=jkehcfu38o09n4hc19nbp8c6k4

Offline turboguzzi

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Re: Ignitor unit
« Reply #2 on: February 15, 2019, 06:57:25 am »
hei brent, in case you wan to increase rpm limit, boxes off the 750-600 should allow higher revs. might be cheaper than modifying IMHO.

my quick search found this too

http://www.nyco-systems.com/Products/mfr.php?mfg=1011

Offline Rocketman

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Re: Ignitor unit
« Reply #3 on: February 15, 2019, 01:52:47 pm »
If you are looking for another 500 rpm’s the 89 to 92 or 93 to 98 GSXR 1100 appears to be limited to 11,500 rpm’s.

Offline bwaller

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Re: Ignitor unit
« Reply #4 on: February 16, 2019, 04:21:52 am »
Thanks guys, this might be the easiest route. The GSX1100 box is supposed to cut out @11,200, but by the dyno it's actually only 10,800. Good for engine management, but for Mosport we have to bounce off the limiter for a long way at the top of the straight. An extra 5-600 rpm would help there. Gearing any taller would hurt it elsewhere. 

Offline turboguzzi

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Re: Ignitor unit
« Reply #5 on: February 16, 2019, 09:03:36 am »
88-91 gsxr 750 limit is 12,500, nice for those instances that you want to carry a gear a bit longer.....

Offline bwaller

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Re: Ignitor unit
« Reply #6 on: February 16, 2019, 02:27:09 pm »
We don't drop out of power at the current rev limit , so an extra 1K rpm makes sense. By 12500 it will be dropping off so I might rather save the wear & tear, although they certainly don't mind spinning up there. Good ign boxes are cheap, I'll try one to 11.5 first.  ;D

Thanks again.
« Last Edit: February 16, 2019, 02:29:36 pm by bwaller »

Offline Rocketman

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Re: Ignitor unit
« Reply #7 on: February 16, 2019, 06:21:13 pm »
The GSX1100 igniter unit I am using seems to limit revs to 10,700 or so also.

 

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