dudutzu

On 10/31/2020 at 4:55 PM, sfdownhill said:

 

dudutzu - the 8 gen headers pair the same cylinders as the 5 and 6 gen headers. The only difference is that on the 8 gen, the front two primary tubes are shaped differently to fit behind the front-mounted radiator. 5 and 6 gen have side-mounted radiators. If you've got an 8 gen, check out the 'Full Exhaust System' thread in the 8 gen forum. It is directed at the 8 gen headers and summarizes this header thread in a couple pages, including dyno charts [So you don't have to read through the 41 pages of data that's logged here].

 

 I wasn't talking about your exhaust, I was referring to the factory exhaust.

Factory exhaust on gen 5 and 6 combines cyliders 1+2 and 3+4. On gen 8 it combines 1+3 and 2+4.

I'm just trying to get clarification if running the 1+3 and 2+4 would pose a [long term] problem.

13 hours ago, ducnut said:

These are 180° engines, which is why the cylinders are paired as they are. Pairing them, both fronts and both rears as a 360° engine is done, will cause running issues and kill power on an 800. Black Widow have their header paired that way. I tried one and it was everything I could do to get my bike started. Once running, it acted like is was flooding, up to ~4K rpm. That experience is what got me to buy this header. 

Are the 8th gen different than the 5th or 6th gen? Because, the 8th gen has the front headers paired together and the rear paired together... 🤔