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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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  #1051  
Old 20th February 2017
jkinkade jkinkade is offline
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I have never used an extended swing arm , but i think it was wise to get the best!! i wonder if it will effect traction or need different rear shock set up? i raced a guy once at track this guy had his first race on a bike with very long swing arm, but he normally raced a wheelie bar race bike, when we got the go light he went up in the air a long way.
cheers
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  #1052  
Old 20th February 2017
rubine rubine is offline
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Congrats on the house bro. Nothin like owning your own pad, as long as the mortgage is manageable. Then build that monster garage!
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  #1053  
Old 21st February 2017
MatHormell's Avatar
MatHormell MatHormell is offline
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Quote:
Originally Posted by jkinkade View Post
I have never used an extended swing arm , but i think it was wise to get the best!! i wonder if it will effect traction or need different rear shock set up? i raced a guy once at track this guy had his first race on a bike with very long swing arm, but he normally raced a wheelie bar race bike, when we got the go light he went up in the air a long way.
cheers
Should be a major improvement in traction, using the 180 tire on the 6" wheel, rather than the 130 before. Im only 2" over stock wheelbase in the most forward position of the axle, But I was getting use to launching at stock WB, so this should only help, and can go to 4 1/4 over stock w/b for the track. I sold my Progressive 970's to cover the new Axtells cylinder and finally drive sprockets I need. Not sure what shock I will end up using, Im close to getting a 1/2 off set of legends shocks, so may end up with those on it.


Quote:
Originally Posted by rubine View Post
Congrats on the house bro. Nothin like owning your own pad, as long as the mortgage is manageable. Then build that monster garage!
Thanks man, Ya its been a prcoess but we finally found what we were looking for within our budget. Big plus to this house is its not in a HOA, ( home owners association). Which is hard to come by in North Texas. The house has a small shop in the side yard, which I plan to build off of, Will make for a nice small shop, and get all my shit out of the garage lol.
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  #1054  
Old 25th February 2017
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  #1055  
Old 2nd March 2017
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Mounted up the rear brake caliper, Its going to work perfectly, but im going to have to turn down the wheel spacer a little bit so the disc will center better. Havent had time to do anything else, and probably wont for the next few months. Motor parts should be back soon, might and hope to be able to get the motor back together before the move but thats not looking promising. Packing and moving my garage is going to be a process. SO many torn down projects and parts and stuff lol..
So I have again accepted this is not going to happen quickly as hard as I've tried lol,
Since it is going to be down awhile, I think I'm going to pick up a 30T crank sprocket from Evo Ind. and lets madness's guy size it up for my crank. That weight reduction is hard to get over lol. I will get an off set 19T final and run my current 41T rear. This is going to take quite a bit more time, but I think will be well worth it in the long run.
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  #1056  
Old 8th March 2017
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well made minimal progress, but some is better than none! lol..
Got the rear wheel centered in the frame, ground down the wheel spacer that came with wheel to .655 which has the rear wheel placed right about center frame. Used a straight edge and used it to measure from the outside of rear drive sprocket to my current front drive sprocket, Offset came out to .758. So now I know how much to off set the front sprocket. Just need to find someone with a 19T 3/4" offset front drive sprocket.
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  #1057  
Old 8th March 2017
Tom Beckner Tom Beckner is offline
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Quote:
Originally Posted by MatHormell View Post

...Used a straight edge and used it to measure from the outside of rear drive
sprocket to my current front drive sprocket, Offset came out to .758. So now I
know how much to off set the front sprocket. Just need to find someone with a
19T 3/4" offset front drive sprocket.
Mat, what's the part number on your current front sprocket?

520 or 530 chain?

Tom Beckner
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  #1058  
Old 8th March 2017
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Quote:
Originally Posted by Tom Beckner View Post
Mat, what's the part number on your current front sprocket?

520 or 530 chain?

Tom Beckner
277 pbi 520 but I'm going to go 530 this time around so need a 530 19t with 3/4 offset.. Reached out to DG chassis but they want about $275 for it after its all said and done! Yikes!

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Last edited by MatHormell; 8th March 2017 at 18:30..
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  #1059  
Old 8th March 2017
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Pbi makes a .750 530. I beleive its the 281 series.

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  #1060  
Old 8th March 2017
MatHormell's Avatar
MatHormell MatHormell is offline
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Originally Posted by cycowrencher View Post
Pbi makes a .750 530. I beleive its the 281 series.

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Yea but only as small as a 21 I believe is what I saw., Looking for the 19T

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