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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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  #21  
Old 23rd April 2012
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Quote:
Originally Posted by DaytonaSportster View Post
AWESOME Write up!!
I have a couple of questions...
I too have the same setup as you did before all this. But I need to tune it better as I only got 73hp and 66tq vs your 80hp/79tq. So which baffle were you running in the Caliber pipes? Mine came with a 1"3/4 and 2". My #'s were with the smaller baffle.
Next Q, why the swap from the TC88a to the IST? I thought they were the same thing just different labeling.
Oh I almost forgot, last Q, why the new heads? Yours were just as good as base units as the Buels.
F.w.i.w. the tc88a is a fixed map, where as the I.S.T. is an auto mapping unit, not even close to being the same. Scott: Motor mods looking real good, let me know how the I.S.T. performs for you. I'm curious how it would show on a dyno as it is constantly learning and making running corrections on the fly. Also, keep in mind that it will come with a 6,100 rev limit from S&S, this is to facilitate break in. The limit can be raised after your break in period.
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  #22  
Old 23rd April 2012
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Looks Great!
Wondering where you got your oil catch can breather from?
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  #23  
Old 23rd April 2012
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Thanks! The oil catch can came from J&P Cycles.
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  #24  
Old 24th April 2012
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I just read through this thread for the first time scott. As everyone has already noted you went the extra mile in many ways. Like everyone else, I am curious as to how the cams you and Len are running are going to work out.

I doubt either of you are likely to run into another street sportster with as much steam. Neither of you skimped on the supporting cast. I look forward to hearing how it runs. steve
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  #25  
Old 24th April 2012
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VERY nice Scott!!!
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  #26  
Old 24th April 2012
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Educate me on this ignition system. Apparently I have been living in a cave. Presumably it incorporates some sort of knock sensing auto retard? steve
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  #27  
Old 24th April 2012
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Quote:
Originally Posted by maru View Post
Educate me on this ignition system. Apparently I have been living in a cave. Presumably it incorporates some sort of knock sensing auto retard? steve
Here's a recent thread that was started:

http://xlforum.net/vbportal/forums/s....php?t=1430175
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  #28  
Old 24th April 2012
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Steve,

Dem guys are Bums !

Better hope they dont venture to SoCal after I get the Queen running !
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  #29  
Old 24th April 2012
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S&S have this ignition for a long time. My neighbor run one on a FX 100ci since 2001, no problem.
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  #30  
Old 24th April 2012
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Scott, I think meticulous is an understatement. Wow. Just wow!
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