Dragos Diablo 2.5 107" kit on 2012 FLTRX - Road Glide Forums
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post #1 of 15 (permalink) Old 05-13-2018, 06:39 PM Thread Starter
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Dragos Diablo 2.5 107" kit on 2012 FLTRX

I have about 43k on a 103" FLTRX with Drago's 580 cams and Drago's 2-1 installed 3 years ago. Dyno #'s are 105HP/115TQ tuned with TTS. I decided I wanted more so I contacted Frank and decided to go with his Diablo 2.5 107" kit which included:

Drago’s Diablo 2.5 107” kit
Head work with 1.9 intake and 1.615 exhaust valves
CP Carrillo Dome Pistons
10.5:1
Cams Drago’s 580
20/42 578 Lift 243 Duration at .05
44/18 568 Lift 243 Duration at .05
101 Centerline
104 Centerline

S&S Lifters with HL2T
S&S Quickie Push Rods
.30 Head Gasket
Dragos 2-1 Ver 2

I took apart the engine at my place and sent my heads and cylinders to Frank. 3 weeks later they showed back with up pistons, rings and a .30 Head Gasket. Now I had heard great things about Belliston's HD in Washington UT, so I decided to tow the bike up to see the master mechanic, Troy. Let me say this guy is AMAZING. He was ready when I arrived and we got started right away and got to work. Once we got it back together we did the required Heat Cycles, changed oil and took it out for a 10 mile break-in ride. He said it felt strong, but needed to do some auto tunes.

The next day He and I and Kim took a 70 miles ride through Snow Canyon (Beautiful). Bike ran strong and I felt I made a good decision with the Drago's build and choosing Belliston's HD to do the install. Fast forward one week and I took the bike up to Bob @ RC Cycles in Hayward, CA to do a TTS tune. After 2 hours on the Dyno doing a through tune Bob said...take it out and let me know what you think. Well, I couldn't be happier. 118HP/121TQ. I took it out for a 130 mile ride yesterday and it pulls great!

Thanks to Frank for a great kit and to Troy and Kim at Belliston's HD for the great experience and hospitality.
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2012 FLTRX BBP
Drago Diablo 2.5 107" 580 cam, Drago 2 pipe and TTS, 14.5" Madstad, Vindikta 12" Maruaders, Corbin Solo
6.5" H.A.T. speakers and Arc 125.2 amp
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post #2 of 15 (permalink) Old 05-13-2018, 07:19 PM
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Now thats impressive. With the 10.25 compression and the .030 head gasket what do you think the final compression is?10.5???


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Freedom Union 2/1, Andrews 57H cam, Mach 2 A/C, .030 head gasket
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post #3 of 15 (permalink) Old 05-13-2018, 11:20 PM
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Happy to help get you back on the road. Those are great numbers. I owe you a poker chip!!!




Now if I had just put the correct O2 sensor in the correct hole. Dang it. What a boneheaded move.

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post #4 of 15 (permalink) Old 05-14-2018, 12:19 AM Thread Starter
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Quote:
Originally Posted by eddienelson View Post
Now thats impressive. With the 10.25 compression and the .030 head gasket what do you think the final compression is?10.5???


Yes


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2012 FLTRX BBP
Drago Diablo 2.5 107" 580 cam, Drago 2 pipe and TTS, 14.5" Madstad, Vindikta 12" Maruaders, Corbin Solo
6.5" H.A.T. speakers and Arc 125.2 amp
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post #5 of 15 (permalink) Old 05-14-2018, 01:54 PM
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Not be a hater, which I am, but those numbers seem a little high for just a cam swap on a twin cam. Dragos 2.5 numbers sound like a lot of fun though. Ride safe
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post #6 of 15 (permalink) Old 05-14-2018, 08:42 PM Thread Starter
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Quote:
Originally Posted by Lima14 View Post
Not be a hater, which I am, but those numbers seem a little high for just a cam swap on a twin cam. Dragos 2.5 numbers sound like a lot of fun though. Ride safe
It wasn't a cam swap. Went from 103" with Cams to 107" with headwork. Same Cams.

2012 FLTRX BBP
Drago Diablo 2.5 107" 580 cam, Drago 2 pipe and TTS, 14.5" Madstad, Vindikta 12" Maruaders, Corbin Solo
6.5" H.A.T. speakers and Arc 125.2 amp
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post #7 of 15 (permalink) Old 05-14-2018, 11:52 PM
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And added compression.

It was a nice kit. Parts were solid.

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post #8 of 15 (permalink) Old 05-15-2018, 05:09 AM
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Very nice, congrats 👍🏻


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post #9 of 15 (permalink) Old 05-15-2018, 06:25 PM
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Very nice, congrats!!


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post #10 of 15 (permalink) Old 05-15-2018, 06:33 PM
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Very Impressive, Congrats!
You can't go wrong with anything from Frank.
Mike U.

USMC 1975-1977
Semper Fi!
Nothing else matters!
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