a little insight please 2003 trailblazer 250 pipe , clutch, filter, jetted
NOT FAST ENOUGHT ( i know should have bought bigger quad!!!)
anybody doing engine swaps on these too 400 im sure some motor
head has done this kind before. also any links to rebuildable engine
cores?

 

It would be cheaper to do a full HPD race mod. This is equal to a 400 with out a doubt. I have a full trail mod and can beat one up to about 50mph. Then I can hang along side it.

 

It's time to port that thing for sure! The swap would not be easy due to the 250 bike not having liquid cooling. Anything can be done if you want,though/

 

Az Bad Boyz has a reed conversion for the 250's.

 

head porting ? does anyone had a link too somewhere i can get a template for porting the head on my TB250 i see hot seat having carb 34mm , allready have good pipe
anyone?

 

How fast you want to go depends on your budget. No limits??? I would do the full HPD race mod.

You could get porting templates, but porting not as easy as it may seem. Not just some handy work with the dremal. It involves raising/ widening, lowering sometimes guys will even fill areas with epoxy...transfer ports, exhaust port, intake port, roof angles and a lot of math. It really is a job that should be done by someone with experience.

I wouldn't use Hotseatperformance for motor mods, HPD for sure.
If you don't know HPD's site: it's
http://www.hpd-inc.com/

 

hey engine9680 i am thinking about getting a 2003 trail blazer 250 and i was wondering how fast do they go becuz i want a machine that can jump and race so tell me how fast they go!