Two stroke engine back pressure

[Punisher]

Hi

what provides the back pressure in a two stroke engine? The header or the pipe?

If I used a large diameter header, would the increased flow/reduction in back pressure be detrimental to the performance of the engine? Or is the exhaust restriction/back pressure provided by the pipe?

 

[ckeast420]

they both work together to produce back pressure,

 

[Extreme RC Mods]

The stinger provides the restriction for proper back-pressure, given it's sized correctly.

 

[2revo1maxx]

Yeah it's pretty much all in the stinger, as I discovered a few years back when I drilled one out.

 

[Punisher]

Thanks for the info guys.