Straight pipe question

[DayzBro511]

I have a straight pipe that has a bend in it and I might have to cut it to have it fit on my minibike if I did cut the pipe how will that effect the sound of it and what are some options you would suggest to get it to fit?

 

[DayzBro511]

it is from go power sports and come in a kit. Also it is running into the wheel so canot mount it on the exhuast port

 

[capguncowboy]

Pictures would help

 

[DayzBro511]

I will in a second

 

[CarPlayLB]

Shorter is louder and moves the power higher in the rpm band. You may into some tuning issues too!

 

[DayzBro511]

Ugh I'm new how do I post pictures

 

[minibikin']

Too short can cause a burnt exhaust valve too....


Sent from my Texas Instruments Speak and Spell...[emoji2]

 

[DayzBro511]

Wait really guys how do I post pictures?

 

[DayzBro511]

 

[DayzBro511]

As you can see I cannot line up the bolts because of the tire.

 

[DayzBro511]

[ As you can see it will not mount because it is hitting the side of the tire

 

[DayzBro511]

Any suggestions on fixing this guys?

 

[massacre]

You could try heating it up and bending it or putting it in a vise and trying to gently bend it slowly?
I have heard that filling a pipe up with sand will make it not kink when bending it. Now I don't remember where I heard that so it might be BS but I do remember reading or hearing that once, maybe from an old-timer somewhere.

 

[CarPlayLB]

You could move your engine forward an inch!

 

[cheezy1]

Just put a 1/2'' breaker bar in the end of the pipe while mounted and adjust it away from the tire. You will probably have to loosen the motor and move it forward to get it to bolt up though. I run that same pipe on many bikes and on my Baja for 6-7 years.

 

[DayzBro511]

Thanks but I don't really understand what you are trying to say could you explain it a little more pleas??

 

[FOMOGO]

Shorter is louder and moves the power higher in the rpm band. You may into some tuning issues too!

That's a great tid bit of info right there Carplay

 

[FOMOGO]

You could try heating it up and bending it or putting it in a vise and trying to gently bend it slowly?
I have heard that filling a pipe up with sand will make it not kink when bending it. Now I don't remember where I heard that so it might be BS but I do remember reading or hearing that once, maybe from an old-timer somewhere.

Massacre, you are correct. Typically you have to weld one end of a tube closed and then fill it with "dry" sand. Then drive a wood plug in the open end to seal it. Then you heat it in a forge to provide even heat. Then you can bend it around a buck of the radius you desire. This is how almost all real race car headers were bent in the late 50's and through the 60's. By real race cars I mean endurance type race cars like Lemans prototype cars. Nascar didn't have tube headers until 64 or 65.... Fords GT40's had tube headers built in a little cottage industry in Europe. Fords Indy cars had the same thing but they were referred to as a bundle of snakes because of there intertwining design.