When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
i dont think that the t/b will give issues as long as the bike is tuned well, i use the 55/58 HPI on mine 107TC and dont have issues. Sounds like a neat build, do you have a good tuner(person) and a good pipe, those will make it or break it!
m
i dont think that the t/b will give issues as long as the bike is tuned well, i use the 55/58 HPI on mine 107TC and dont have issues. Sounds like a neat build, do you have a good tuner(person) and a good pipe, those will make it or break it!
m
Same shop that did my current build / tune is tuning it with my Direct Link license, stock heads on the current tune. This guy was recommended to me by Steve at GMR performance in Fort Worth , Texas.
Running a Fullsac DX head pipe with S&S GN slip-ons , have a 55 HPI on it , he just wants to be sure I'll get the most from doing the heads.
The HPI has about 3500 miles on it , he's gonna give me $300 credit for it. I know it would probably do a little better with a 2-1 pipe but don't really want to spend the money for the difference.
Hoping she's ready next week.
He's not even giving you 50 cents on the dollar wow.. I really don't think you're going to see that much of a gain on a 55 to 58 but you will see a good gain with Flo on the cylinder heads.. if the guy does a good job on them.. You're 55 is more than enough for that... Jmho...
He's not even giving you 50 cents on the dollar wow.. I really don't think you're going to see that much of a game on a 55 to 58 but you will see a good game with Flo on the cylinder heads if the guy does a good job on them.. You're 55 is more than enough for that... Jmho...
It's that or send it back to HPI as a core, they won't sell you one with out a core , and HPI wouldn't give me anything for it so at least I'm getting something for it.
58 mm throttle body might be really touchy in the lower RPMs for street manners. Not sure but I'm thinking that might be a little too much..
On a TBW bike, the throttle blade table tuning keeps the low rpm and progression in check, it’s not 1:1 with the twist grip sensor, the blade opening is limited until the extra flow of the larger TB can be utilized in the higher rpms.
Updating My 107 Twincam Build
