Motor Upgrade! Taking the Plunge! - Road Glide Forums
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post #1 of 65 (permalink) Old 09-12-2016, 07:44 AM Thread Starter
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Motor Upgrade! Taking the Plunge!

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!
08Zinc, Bruce00, Trboden and 1 others like this.

I hope when I die, a lot of people say, "Man, that guy sure owed me a lot of money!"
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post #2 of 65 (permalink) Old 09-12-2016, 07:51 AM
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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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2000 FLTRSEI, S&S 510 Gear drive cam set, High volume oil pump, PCIII, Vance & Hines True Dual HeadersRear Swing Arm is 02-06 Style
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post #3 of 65 (permalink) Old 09-12-2016, 07:51 AM
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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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post #4 of 65 (permalink) Old 09-12-2016, 07:54 AM
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Originally Posted by ironmark View Post
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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post #5 of 65 (permalink) Old 09-12-2016, 08:08 AM
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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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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.
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post #6 of 65 (permalink) Old 09-12-2016, 08:25 AM
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Originally Posted by ironmark View Post
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

https://www.roadglide.org/54-dyno-res...o-results.html

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post #7 of 65 (permalink) Old 09-13-2016, 09:51 AM Thread Starter
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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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File Type: jpg harleybuild1.jpg (122.2 KB, 205 views)
File Type: jpg harleybuild2.jpg (122.2 KB, 180 views)

I hope when I die, a lot of people say, "Man, that guy sure owed me a lot of money!"
post #8 of 65 (permalink) Old 09-13-2016, 09:53 AM Thread Starter
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Sorry, didn't mean to post two of the same photo. I suck on the interwebs.
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File Type: jpg harleybuild3.jpg (208.4 KB, 179 views)
File Type: jpg harleybuild4.jpg (160.2 KB, 167 views)

I hope when I die, a lot of people say, "Man, that guy sure owed me a lot of money!"
post #9 of 65 (permalink) Old 09-13-2016, 09:55 AM Thread Starter
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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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File Type: jpg harleybuild5.jpg (194.1 KB, 143 views)
File Type: jpg harleybuild6.jpg (196.2 KB, 152 views)

I hope when I die, a lot of people say, "Man, that guy sure owed me a lot of money!"
post #10 of 65 (permalink) Old 09-13-2016, 10:08 AM
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3 weeks for a 107 kit? geez

Cant wait to hear how you like it.
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