[gman]

Has anybody ever run just straight pipe out the back of their inframe drag pipes? What does that do to the power curve ? Anybody ever dyno the difference? Will it hurt performance to just pull the baffle out of the stinger? Don't want to change to OOF's but love the way it sounds and seems to run better? Feel free to share your experiences or thoughts. Thanks

 

[Uwenr]

QUOTE (Hillshooter @ May 19 2008, 08:02 PM) index.php?act=findpost&pid=651Has anybody ever run just straight pipe out the back of their inframe drag pipes? What does that do to the power curve ? Anybody ever dyno the difference? Will it hurt performance to just pull the baffle out of the stinger? Don't want to change to OOF's but love the way it sounds and seems to run better? Feel free to share your experiences or thoughts. Thanks

I run CPI in frames with the silencers and took the baffles out. So basically what you want but you can still bolt them up. Runs get never dyno'ed it thou

 

[browning5150]

I know on matt shearers pipes they make a few horsepower loss..Matt dynod and tested results himself....caught me at the drags and let me know I was loosing power by not running the silencers with his setup..Im not sure about any other but im sure thats why they make stinger versions with the extended peace for back preasure..

 

[gman]

QUOTE (lowbuckracing @ May 19 2008, 08:50 PM) index.php?act=findpost&pid=656I know on matt shearers pipes they make a few horsepower loss..Matt dynod and tested results himself....caught me at the drags and let me know I was loosing power by not running the silencers with his setup..Im not sure about any other but im sure thats why they make stinger versions with the extended peace for back preasure..


That is the exact kind of info I was looking for. Thanks. I was hoping Nate or a pipe builder would weigh in and school me. Anybody else?

 

[REDLINE]

There are adjustments to the rules on every different setup. for instance; if you are running big bores on a smaller size engine, a longer stinger (or silencer) might actually help get heat into the pipe, or if you are running small bores on a bigger size engine, no silencer could help. The diameter of the stinger has more to do with creating the back pressure than the length really. I have also seen inefficient monstor motors that don't like big bore pipes, and relatively small (but very efficient) engines that like big bore pipes........ this is why we have dyno's!

 

[gman]

Thanks Bill, but I'm still unclear. Are you suggesting possibly taking out the baffle and replacing it with a straight section or just removing it. Is the stinger section the whole rear or just where it necks down on the main pipe? It sounds as if as long as I dont change the diameter of the rear section it will not change things.