drying out b pipe dangers?

Watty

Random Performance
Location
Australia
I run them as dry as I possibly can without melting the couplers, or creating steam in the engine bay when water splashes on the chamber. We're not in the 40's and our engines don't like to run on steam much.
 

Waternut

Customizing addict
Location
Macon, GA
Agreed. I try to run it hot but in the summers you may have to open a screw a tad because sloshing water will cause the chamber to steam. I can't tell the difference running a little cooler but I can certainly tell when I burn up a coupler.
 

SUPERTUNE

Race Gas Rules
Location
Clearwater Fl.
On very high compression engines, be careful with jetting getting a little leaner when drying out the chamber.
With leaner combustion, you pick up a lot of heat and can cause detonation.
When the pipe tune is too dry, you can lose RPM's and when that happens with programmable ignitions that are RPM driven you don't get the needed timing retard and this can cause piston failure from detonation.
Always try richer needle settings as you play with drying out the chamber more.
 
Last edited:
ive found with anything over 770 cc that running the top screw open a good bit,"amount open dependant on cooling setup" and all other screws closed I pick up a ton of low end response and hit,a loss of upper mid and top end,but we hardly ever use it in freestyle/freeride anyway with a p pipe.This has worked wonders on 3 diff larger motors,doesnt seem to make anywhere near as much effect on 701 motors espec when the mani and head pipe have not been opened up.A hot pipe doesnt do much for our kind of riding at all,some extra rpm dont mean didly if you never get up top to use it. another advantage to this setup is the motor runs much cooler,the jetting can be smaller and the timing can be even further advanced with programable ign for yet even more low end response.
 
Top Bottom