cpi 240 big bore pipe

1bad442

New Member
Aug 25, 2010
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round lake,il
new cpi big bore pipe for my ken oconnor racing long rod 240 motor thats almost done. some key features of this pipe that impress me are the oringed head pipe where the flange slips in, billet rebuildable silencer show quality chrome plating and man the chamber of this pipe is huuuuuge definayely the nicest built pipe i have seen yet for the 240 blaster. and yes they make a smaller version of this pipe for stock type motors

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i'm liking that silencer, wonder if they sell just that ????
is that right or stock side bend ?????
 
i'm not understanding how that even comes close to a right bend performance wise, with the extra bend and travel distance the exhaust gases have to flow ????
i'd like to take my right bend with me to kens next time and see a head to head, ass dyno comparison ????
 
all the lrd/ ct/ f7/ power pros flanges are like that too and my power pros is right bend which i think is the coolest thing out. remember its not always about the size with a 2 stroke pipe
 
all the lrd/ ct/ f7/ power pros flanges are like that too and my power pros is right bend which i think is the coolest thing out. remember its not always about the size with a 2 stroke pipe

im gonna disagree when u have a 248 cc motor the size of the chamber does matter go look at any 250 cc bike motor and show me one that has a chamber as small as a f7 or toomey and keep in mind kens motor lost 40 degres cyl head temp by switching to this pipe that directly points to an inefecient pipe.
 
i'm not understanding how that even comes close to a right bend performance wise, with the extra bend and travel distance the exhaust gases have to flow ????
i'd like to take my right bend with me to kens next time and see a head to head, ass dyno comparison ????


bends dont matter one bit. anyone that tells u that is blowing smoke up your ass. all length does is change where the powerband occurs. a correctly matched left bend pipe will make just as much power as a right bend

tell ya what ill put this pipe and a f7 on my bike on the dyno and bet anyone on here 500.00 this pipe makes way more power !! any takers???? all u right bend guys put your money where ur mouths are now lol
 
what im trying to say is go look at the dia of a 250 4 stroke pipe...


is this a drag bike or trail?

thats a 4 stroke there completely different. go look at any rm or yz 250 and look at the pipe its as big if not bigger than my cpi this motor will be used for a litle bit of trail and drag
 
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tell ya what ill put this pipe and a f7 on my bike on the dyno and bet anyone on here 500.00 this pipe makes way more power !! any takers???? all u right bend guys put your money where ur mouths are now lol

Bahahahahaha!!! If your motor is built for a cpi pipe, of course its going to make more power then throwing another pipe on it, especially on a dyno.
 
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Bahahahahaha!!! If your motor is built for a cpi pipe, of course its going to make more power then throwing another pipe on it, especially on a dyno.
so explain to me how a motor can be built for a lrd toomey or f7 pipe when they cant give u the port timing specs that the pipe is designed around?? cpi was the only one able to do that and thats probably why the toomey choked kens motor power wise and had a 40 degree hotter cyl head temp
 
I don't know anything about "port timing" and my engine builder doesn't build my motors around it. He's been to the races and seen how I ride and builds my motor's around that.
I was just replying to your comment about putting a different pipe on your motor and the cpi making more power on a dyno