Does anybody know procom website?

 

www.procomengineering.com

I saw it from something on ebay. Some possibilities there, but I'll wait for some guinea pigs to try this stuff out before I drop any money there. I hadn't ever heard about it until today.

 

just checked these guys out, looks interesting, anyone whom has done this mod, it would be nice to hear your feed back because if it works it's on the next plane here....

 

Procom = Junk. Do a search on these forums and you will find plenty of proof why.

 

well you can do alot of things to the grizz. I think the cdi is out but there are numerous big bore kits on the market you can do a stage 3 690 kit with ported head for 750us dollars. Or the other option for raw power is the 725cc kit for 1600 or the 800cc for a bit more but will definately give you that extra kick you need to race.

 

Even if the Procom CDI yields only mild gains, it will still give me 1000 rpm to play with. Reducing the gearing will give me the power to utilize it. I don't really want any more top end. I just want to get more low range torque so it will launch off the line and really rip coming out of turns. Plenty of people install a couple of mods and then think that it is as good as it can get. Don't forget that some really small engines can be moded to yield massive H.P. and I think that this griz can be tuned up quite a bit more than I have it now, without doing a piston and cam.

 

I would think the raptor 660 mods would work, ive been looking for grizzly mods and couldn't find anything substantional

 

You arent making any power at the stock rev limit, so why do people think that revving another 1k over it is going to give them any performance increase?

 

I am making enough power to maintain 66 mph before I hit the limiter. If I lower the gear ratio by making the driven pulley smaller/wider at a given rpm (with lighter clutch weights) it will reduce the load on the engine so it will get to the rev limiter easier (with a slower top speed). I don't want to ride the rev limiter so I will give it more rpm with the cdi (which should get me back to my 66 to 67 top speed). Because the machine can rev quicker due to the lighter load at lower rpms, it should have considerably more torque at lower engine rpm and it will be farther into the power band at slow speed. I could be wrong, but I am going to try it.

 

they offer 2 procom cdi boxes for the grizzly. a few guys have tested them, and the proof in them is they work. the b cdi box is for stock and the c cdi box is for a built engine. and yes, the 1000 rpm's does matter. the belt system allows for full rpm at throttle up, so 1000 more rpm means more throttle up! these guys have done timed runs with them, and have shown increases over all in all area's of power band.