Hey guys. Im looking to get a little more torque and HP out of my grizz. I knew it was a little low on power compaired to other big bore bikes, but everything else was right, and figured I could make up power else where to make it the perfect bike for me.

So I have been browsing around. I know trinity has a 734BBK, but keep seeing them taking a beating on forums around the web. So what other kits are there. Id like more power, without losing reliability. Figure maybe some of you raptor boys can help me out.

Thanks.

 

Start w/ exhaust and a efi commander, air filter then go from there.

 

Thats a given. I have plans to go with the VDI (already had one on my king quad) for my fuel, and HMF swamp Series exhaust. Ill be putting in an EPI clutch kit with competition stall springs to help with my 27s. I was orginally look at the JE piston, and a cam. But all the cams are for the raptor, and its tranny. Not a grizz and its CVT. If I could get a good cam built for the CVT, and a high compression piston then that might be the way to go for me. I also dont wanna run race fuel all day. So the trinity kit with 12:1 might not do so hot for me.

 

check out grizzlycentral.com I'm sure there is someone there with engine work that can help you.

 

Check with FST www.fourstroketech.net
Four Stroke Tech, Inc.
460 Hogback Rd.
Hyndman, PA 15545

Phone (814)842-6159
Fax (814)842-9221

I am very happy with the bbk that I installed from them and I am sure he will be coming out with something(if its not already there). I know he has a kit for the old 660 to make it a 740, plus cam and everything.

 

Nothing yet. sent off an email. see what comes back