I know that this has cam up b4, and i've heard good and bad things about it. if you have it or know someone who has it please tell me your mods and how you like it. I ride alot in the woods, but we also ride fast so i want top end, but i don't want to sacrafice much lowend. any help is appriciated. thx

 

I have a lot of thought on this. With the blaster and cant remember the gearing so I think I would go up one tooth in the Rear so you dont have to worry about clearance on the case. I know that sometime clearance of the skid plate is in order as well. I guess you should tell us what size rears you are running.

 

stock gearing is 13/40 and i have 20 x 11 x 8 xcr holeshots on the back

 

Stock Blaster gearing is 13/40. The Blaster is somewhat under-geared, so with some mods such as you have, you would have no problems pulling a 14 tooth front sprocket.

We ran 14/38 on my son's Blaster for TT/Flattrack before we sold it. For recreational riding, MX racing or other types of riding, and depending on the rear tire size, we would run either 13/38 or 14/40 gearing.

The largest front sprocket you can run is a 14t without modifying the left side cover to provide some clearance.

I am not aware of any bad side to running a 14T front.

The mods we had on the Blaster's motor: Toomey B1, K&N air filter, extensively ported cylinder, Wiseco Pro-lite +0.060 piston, vito's high compression head gasket, shaved head w/ re-cut combustion chamber, V-Force reeds, 35 PWK A/S carb, carb adaptor for airbox, Pro-Design aluminum intake port matched to the reed cage, timing advanced +4 degrees, shaved & lightened flywheel and perhaps some others I've forgotten about.

We only time we ever ran a 13 tooth front was with a 38 tooth rear in conjunction with 20" rear tires. All other times we ran either 14/38 or 14/40 gearing.


Regards,

Rog

 

ok thx. that helps me a bit. The only thing is yours is alot more moded than mine and i hope i won't loose alot of power

 

I'd put a 14 tooth even on a mildly moddied Blaster. As I mentioned in my previous post, they are somewhat under geared and do benefit from taller gearing (just as 400EX's do by going to a 16t from a stock 15t front).

I've run into a lot of Blasters that have 14t fronts.

For the cost of a front sprocket, you can't go wrong.

Regards,

Rog

 

ya i think that i'm going to go to a 14t

 

I had a 14 tooth front sprocket on my Blaster. My only mods were a K&N and a Pro Circuit pipe. The 14 tooth made it feel alot better. I only rode my Blaster in the woods and on fire roads and it worked out great. You gain top speed and the acceleration still is great.