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Sportster Motorcycle Engine Conversions Advice, questions, and tips for 1200, 1250, 1340, 1450 etc... for Sportster and Buell motorcycle engine conversions

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  #31  
Old 15th September 2018
rocketmangb's Avatar
rocketmangb rocketmangb is online now
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Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: XL1200C
Sportster/Buell Year #2: 2006
Other Motorcycle Model: 48 "Totalled" By a Douche
Other Motorcycle Year: 2012
Reputation: 3656817
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There are better deals
Call Daytona direct and ask if they have a Factory ReMan.
__________________
Thy Sportster Come
It Shall Be Done
On Earth as it is on Salt
2006 Sportster XL1250C
Hammer Sledge Heads 1.98X1.61 Valves
Hammer 600 Cams
Big Ass CP/Hammer Pistons
Mikuni HSR 45 /Hammer Billet Manifold (Now HSR 48)
Jetted 27.5 slow,182.5 Main
97 Needle,Clip posistion 3
Hurricane Flow 3" offset AC,Rocketman Mod
Daytona Twin Tec TC88A,Rico Scarecrow Map
Sumax Thundervolt plug wires,NGK DCPR8EIX spark plugs. Gapped .040 and Indexed
Cycle Electric Stator and Regulator
Alto Carbonite Clutch
Royal Purple 20W50 MC Primary oil
Patriot Defender Pipe
Royal Purple 20W50 MC Engine Oil
Napa 7148 oil filter
Max Power, 111.47
Max Torque, 84.39
Best 1/4 Mile ET to date 11.85
Best 1/4 Speed to date 115.14
Build by Jester Motorwerkz West
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  #32  
Old 16th September 2018
1HD4CJM1X4K 1HD4CJM1X4K is offline
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Sportster/Buell Model: XL883C
Sportster/Buell Year: 2004
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Quote:
Originally Posted by rocketmangb View Post
There are better deals
Call Daytona .
Thank you
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  #33  
Old 16th September 2018
IXL2Relax's Avatar
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Sportster/Buell Model: Sportster 883►1200
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I'd remove your ph-number cause this is an open board...

Glad to see you're pursuing a solution...

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  #34  
Old 16th September 2018
5mel42 5mel42 is offline
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Sportster/Buell Model: 883/1250 Superlow
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Other Motorcycle Year: 2009
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Amazon had them for $289 the other day as well.
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  #35  
Old 17th September 2018
1HD4CJM1X4K 1HD4CJM1X4K is offline
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Ordered from Hammer.
My Local Indy will install the TC88a.
(Will probably eventually want to connect to a PC and play with a custom ignition timing)
Need suggestions/recommendations for starting point settings.
I am thinking 2: 2: 5: 2
Will never need to rev beyond 5,000 rpm even after break in.

Any insight will help..
Perhaps these settings are still too aggressive.
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  #36  
Old 17th September 2018
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rocketmangb rocketmangb is online now
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Join Date: Jan 2008
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Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: XL1200C
Sportster/Buell Year #2: 2006
Other Motorcycle Model: 48 "Totalled" By a Douche
Other Motorcycle Year: 2012
Reputation: 3656817
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I can re-map your TC88A
I charge $20.00 which includes return postage priority mail insured to you.
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  #37  
Old 20th September 2018
1HD4CJM1X4K 1HD4CJM1X4K is offline
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Received the TC88a today and dropped it off with my Independent.
Time to get the bike back together.
Will give them a few days to get caught up so they can schedule my bike for final assembly.
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  #38  
Old 20th September 2018
1HD4CJM1X4K 1HD4CJM1X4K is offline
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Quote:
Originally Posted by rocketmangb View Post
Realistically you might see 10 hp and 4-5 lbs of TQ
I sm hoping for more than a simple 10 HP gain and more than a meager 4-5 LBS of additional Torque, but, as long as the engine is happy, I will be too.
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  #39  
Old 20th September 2018
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Sportster/Buell Model: XL1200C
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Heads and cams are big bottlenecks for you
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  #40  
Old 20th September 2018
1HD4CJM1X4K 1HD4CJM1X4K is offline
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Quote:
Originally Posted by rocketmangb View Post
Heads and cams are big bottlenecks for you
Its a shame, because I changed out the old, stock cams for new, but still original, stock cams, because of slight wear on the ones that were in there.
Just figured this would provide some assurance of longevity to a rebuild. (besides I got a great price on them)

Another reason for going stock was balancing reliable vs aggressive. (not having to weigh the benefits of going with stronger springs vs the possibility of floating valves, or for that matter, creating a rougher idle).
The final reason was to try and maintain good MPG.

This adventure sure has put a dent in my financial future.
Cannot wait to break-in the engine and then take a road trip!

I thought the 883 heads would produce more power (49 cc heads) vs the added cost and facing the lower compression of installing a set of 1200 heads.
Started this whole trip because of an annoying tap tap tap from the front rocker.
I was not on a power trip, but second thoughts do crop up now and then.
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