cr 250 pipe?
- Thread starter x-man
- Start date
Dude you have already started a topic about this, and it went nowhere fast becuase its not something that shouldnt be done......
here is the last thread you started
http://www.blasterforum.com/threads/whats-the-deal-with-cr-250-pipe.64337/
here is the last thread you started
http://www.blasterforum.com/threads/whats-the-deal-with-cr-250-pipe.64337/
Couple things X-man. Biggest is that O.P. of the pipe thread never updated his "experiment" even though he was on a month ago.
I suggest you P.M. him for results. I bet a buck it didn't work very well, which is why no results posted. The wrong pipe is likely worse than a stock pipe !!
I have a great idea X-man , get a pipe, mod it to fit and give us an azz dyno report.
What do you have against using a YZ pipe?
Little experiment I stumbled upon, used a Vito's super stock piston in a flipper Blaster. FYI, the piston has a exhaust cutaway, similar to.raising the exhaust.
Used stock exhaust. It had fantastic bottom end
!! But just as the revs got to the point of really putting a two stroke smile on your, it would fall flat on its face, just stopped pulling 
, wouldn't rev higher no matter what.
Which is exactly how Yamaha would have designed the pipe. To keep inexperienced riders from over revving in a to low of gear.
I have actually thought of modifying a stock exhaust. Cut it open, remove the baffle, and sound deadening material, replace the "neck down" between front and rear cones, and maybe even shorten it a bit.
But time is money.
Plus my little wire welder isn't the best
, but it was free !!
Nothing wrong with asking questions. Best answer I can give is research
, start with Gorden Jennings, Two stroke tuners handbook.
When you (or anyone) can explain the degrees of difference between a MX pipe and road race/drag pipe , then we'll be on to something
!!
I suggest you P.M. him for results. I bet a buck it didn't work very well, which is why no results posted. The wrong pipe is likely worse than a stock pipe !!
I have a great idea X-man , get a pipe, mod it to fit and give us an azz dyno report.
What do you have against using a YZ pipe?
Little experiment I stumbled upon, used a Vito's super stock piston in a flipper Blaster. FYI, the piston has a exhaust cutaway, similar to.raising the exhaust.
Used stock exhaust. It had fantastic bottom end
!! But just as the revs got to the point of really putting a two stroke smile on your, it would fall flat on its face, just stopped pulling , wouldn't rev higher no matter what.Which is exactly how Yamaha would have designed the pipe. To keep inexperienced riders from over revving in a to low of gear.
I have actually thought of modifying a stock exhaust. Cut it open, remove the baffle, and sound deadening material, replace the "neck down" between front and rear cones, and maybe even shorten it a bit.
But time is money.
Plus my little wire welder isn't the best
, but it was free !!Nothing wrong with asking questions. Best answer I can give is research
, start with Gorden Jennings, Two stroke tuners handbook. When you (or anyone) can explain the degrees of difference between a MX pipe and road race/drag pipe , then we'll be on to something
!!
