Thanks 72. I'm at altitude and the bike already has a K&N filter, AI delete and higher flow aftermarket pipes. I'm not looking to make her a track bike, just want to make sure she can get the air she needs to be at her best.I think there's lots of reason to expect that the TTP Breathe can potentially perform a lot better than the typical 3D printed bellmouth. However, the chances you can recognize these differences on your bike are very small. If you were going with a 904 kit and big cams and big throttle bodies then the Breathe would likely be required (along with the cotton/oil air filter) for you to get all of the power you could potentially get at WOT / max RPM. But on a regular 865cc stock(ish) engine running 8K rpm redline I'm pretty sure you won't find the differences on any dyno.
That said, my bike with the TTP Tune 2 2:1 with a 3D printed bellmouth, TEC 2-1 exhaust and a UNI air filter ran a touch rich across the board, I wound up leaning it 5% and now it runs a touch on the lean side but not noticeably so besides making much better MPG and less black tailpipe. I have no doubt with the Breathe and a cotton/oil air filter it would run less rich due to more air available, and probably make a bit more power.
Nice solution. Do you know if that's that a bolt-on fit or will it need some mods?I miss folks using the Polaris bellmouth. I'd so this, just to be old school.
It's a double sided plenum. So you cut one half off. There a center part with two ridges, and the bell coming off both sides. Keep the two ridges as that's how it inserts into the plate. It's rubber and cuts pretty easy. Well, I guess my attempt was sloppy:Nice solution. Do you know if that's that a bolt-on fit or will it need some mods?
Yeah, I like the guy who makes the Breath kit, seems like a good sort and to be trusted. Still, not sure I've seen independent testing on how much better it performs. My common sense tells me these are pretty basic bikes with basic CVK36 carbs, not formula 1 machines. It's hard for me to believe that they are so sensitive to the nuances of the bellmouth that you'd notice a difference. Could be wrong, of course.I made one on the college 3d printer smoothed it off and fitted it; no reason to think it was any better or worse than the expensive one?
Too bad that link doesn't show a photo of it. Would be interesting to see.I miss folks using the Polaris bellmouth. I'd so this, just to be old school.
See post #10 of this thread. There's also a picture of an uncut one at: www.triumphrat.net/threads/how-to-make-your-polaris-bigger.160576/Too bad that link doesn't show a photo of it. Would be interesting to see.