Hi from sunny Scotland

[NINJA]

@calum AAAHHHHH!!!!

Thank you for the clarification.

[Calum]

@cyber-ninja Fascinating subject if you haven't read about the physics of it.

[NINJA]

@calum Reading - I'm more of a looking at 'pictures' type of guy. You know lots of curved bumps in all the right places etc. LOL

[Calum]

@cyber-ninja said in Hi from sunny Scotland:

@calum Reading - I'm more of a looking at 'pictures' type of guy. You know lots of curved bumps in all the right places etc. LOL

Nuff said

[NINJA]

@calum So do under-slung exhausts increase or decrease this 'Supercharger effect' then???

[Calum]

Basically, that effect you see in that picture is a direct result of the expansion chamber. Now the taper, angles and lengths, determine when and how long that pulse goes on for.

So you could have a savage pipe that creates 100000BHP, but at 20K RPM, which is unuaable for a DTR.

So yes, it can have a massive effect.

[Calum]

@cyber-ninja Increase. Which is why I went with one.

A wrap around pipe is a compromise, for ground clearance and to still keep this forced induction.

An underslung can be better tuned to give a wider band.

For performance, it's all about underslung/

[NINJA]

@calum Cool - G2K!!!

[Glynn123]

Hi guys, sorry for the really late reply, there was an unbelievable difference from changing the pipe and upsetting my main to 250, the bike pulls very strong through low end and has a big kick at high revs, it also absolutely screams way higher than my old stock expansion chamber with dep end can. Here's a video I took a while ago of a quick acceleration with the pipe, although it doesn't have quite the kick it has now that I've put my boost bottle back on, I had it off for a while to see if there was a power change.
The overall speed and power of the bike is about the same as my mates 2016 CRF 250x, both accelerate about the same and top out roughly the same, but the Dt suspension isn't quite as good
https://youtu.be/KQQ217FyGFE

[Calum]

Quality bud!