Pipe SHOOTOUT !!!!

[buzzkill]

What's your take on "forcing cones"?

don't know anything about them really

 

[tman]

If we are talking about the same thing. A forcing cone size depends on alot of things. Size of your engine. The discharge port. The rpms the motor puts out and the horsepower. Doing Dino tests and experimenting on the size of the forcing cone. Bigger hole as to smaller on you exhaust

 

[buzzkill]

IF you want to see a PERFECT pipe shape look at the old Moto GP1 bike pipes those were the TOP of pipe making , they were making 35 HP in 125 cc displacement , so a 50cc in terms now would make 14 hp !!!!!

 

[Branson_Basher]

don't know anything about them really

This is a pretty concise explanation. His video series looks like one of the better ones I've found.

 

[Polar_Bus]

IF you want to see a PERFECT pipe shape look at the old Moto GP1 bike pipes those were the TOP of pipe making , they were making 35 HP in 125 cc displacement , so a 50cc in terms now would make 14 hp !!!!!

View attachment 68824

Those factory race 2 stroke GP expansion chambers are just mechanical works of pure art !

Here's my custom made Higgspeed polished stainless pipes on my '73 H1 . REALLY nice craftsmanship .

 

[buzzkill]

Those factory race 2 stroke GP expansion chambers are just mechanical works of pure art !

Here's my custom made Higgspeed polished stainless pipes on my '73 H1 . REALLY nice craftsmanship .

View attachment 68832

Damn my brother had an H1 way back , I had a basket case that we could never get the ignition to work again NICE