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Discussion Starter #1
After hemming and hawing back and forth, I finally decided to take the plunge and do something about my 2015 RGS engine. When riding two-up, it just didn't have enough power to basically get out of it's own way. So I trailered it down to Americus, Georgia on Friday and dropped it off at Star Racing, to get one of their Thrasher 107 kits installed. George Bryce, the owner, was nice enough to wait on me to arrive, (they close at noon on Friday) and let me drop it off.

Mr. Bryce gave me a tour of his shop and I got to see Angelle Sampey's NHRA Pro Stock Harley up close and personal. (Incredible!) The engine work should be done in about 3 weeks, so I'll be posting an update then, but wanted to give everyone a heads-up that I finally got off my keister and did something about the power (or lack thereof) with my RGS. Oh, and as part of the build, Mr. Bryce does a "before" dyno run to compare it to the "after" results, and my stock RGS made a paltry 75 hp.

Counting down the next 21 days till I can go pick up the new-and-improved bike!
 

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Awesome! Interested in seeing the dyno charts. It should be one sweet ride after you get it back. Congrats!
 

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A air intake and exhaust mod and a good tune with a stock cam would have got you around 95 HP +/- and 110 ft lbs of torque and it would cost a lot less. But a 107 build will be a nice increase in performance.
 

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A air intake and exhaust mod and a good tune with a stock cam would have got you around 95 HP +/- and 110 ft lbs of torque and it would cost a lot less. But a 107 build will be a nice increase in performance.
85hp amigo - You won't get to the 95hp mark without Cams at least
 

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85hp amigo - You won't get to the 95hp mark without Cams at least
The 2014 and later HO 103 with stock cam and intake and exhaust mods and a good tune will dyno out at 110 ft lbs of torque and around 95 HP +/- and the dyno sheets were posted on this forum. I got a 103 HO in my 08 and I have no desire to swap out cams because there will be no real noticeable improvement. On my old 103 I used SE 255 cams, SE 259E cams and Woods 222 cams and they didn't really work much better then the stock 103 HO cam.
 

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The 2014 and later HO 103 with stock cam and intake and exhaust mods and a good tune will dyno out at 110 ft lbs of torque and around 95 HP +/- and the dyno sheets were posted on this forum. I got a 103 HO in my 08 and I have no desire to swap out cams because there will be no real noticeable improvement. On my old 103 I used SE 255 cams, SE 259E cams and Woods 222 cams and they didn't really work much better then the stock 103 HO cam.
Every Stage (1) 103 Motor I saw Dyno'ed was pretty much spot on to my old '16 RG 103 Set up (attached) and all were in the mid 80's for HP and 110's for Trq

And when I posted it, heard the same from members here amigo - If others are getting 10 more HP out of a Stage (1) then that is awesome

http://www.roadglide.org/54-dyno-results/279657-16-rg-stage-1-dyno-results.html
 

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Discussion Starter #7
Just as he said he would, George Bryce sent me photos of the progress they're making. Here are some tear-down photos from Monday. (Pretty darn fast if you ask me, they didn't get the bike until after closing time on Friday, and they're not open on Saturdays)
 

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Discussion Starter #9
last two, the team is headed to ZMax Dragway in Charlotte this weekend for the race, so keep a lookout on TV, they'll have their two riders there. Go Star Racing!
 

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3 weeks for a 107 kit? geez

Cant wait to hear how you like it.
 

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I think you'll be happy , my 107 "after a good tune runs better, cooler and actually gets better mileage then stock. You can get some good numbers out of a good 107 build. What cams are you going with?
 

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Motor upgrade! taking the plunge!

Not sure what they use, I do remember him saying it has a lot of lift, but they do 1-2 of these kits per week, so they've got things dialed in really well. They usually get between 126-132 HP at the wheel, which is pretty darned impressive for 107 cubic inches. They do a full race job on the heads, bigger valves, etc. I'm really excited about it all. He sent me more photos about an hour ago, showing the hogged-out intake and exhaust tracts on the freshly-done cylinder heads. I'll try to post them in a bit.
 
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I think the thing I'm most impressed with is, when I dropped off the bike, he said they'd send me photos as they tore it down and built it back up, and sure as the world, he's a man of his word. Got more photos last night. I'm really getting excited to experience Star Racing's magic!
 

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She's gonna be a runner! Like getting a brand new bike when you get it back.
 

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She's gonna be a runner! Like getting a brand new bike when you get it back.
I'm certainly beginning to think so too! The shop at Star Racing was incredible too, man the stuff they have in there is beyond cool. He had shelf after shelf of "Wallys" sitting there, they've won so many races and championships it is just amazing. Plus, I can't believe how nice the guy actually is/was. He stayed late on that Friday to allow me to drop off the bike. (They close at noon on Fridays) and I didn't arrive until just before 5. (Had two tires blow out on the trailer, long story) He was as cool as could be when I showed up. Gave me a tour of the facility, and answered many (Probably stupid to him) questions. Said the work would be done inside 3 weeks. With the pace of the pictures I'm being sent, I won't be surprised if he's done much quicker than that.

Love doing business with people that say what they mean, and mean what they say.
 

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Not sure what they use, I do remember him saying it has a lot of lift, but they do 1-2 of these kits per week, so they've got things dialed in really well. They usually get between 126-132 HP at the wheel, which is pretty darned impressive for 107 cubic inches. They do a full race job on the heads, bigger valves, etc. I'm really excited about it all. He sent me more photos about an hour ago, showing the hogged-out intake and exhaust tracts on the freshly-done cylinder heads. I'll try to post them in a bit.
So what is being done to the lowerend of the motor?
 

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Discussion Starter #20
So what is being done to the lowerend of the motor?
The lower-end will remain stock, and I'm not worried about that, since I'm not planning on drag racing the bike, or doing stupid stuff like burnouts, etc. Just got tired of the bike basically not having enough power to get out of its own way. The bike he did just before mine got 132 HP and 129 TQ. I'd be happy with anything approaching that figure. Plus, at least to me, there's no better sound than a Harley with a fat cam in it, rumbling at a stoplight. With the Boarzilla pipe, headwork and the higher-compression pistons (around 10.3-10.4) it should sound pretty good.

I'm already saving my money though, for an S&S 124 or 131 to put in there when this motor gets tired in a few years. Mr. Bryce stated he's had these 107 engines go 50K miles with just routine maintenance. To say the least, I'm stoked.
 
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