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Old 03-23-2014, 12:14 AM   #1
skelator
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My 11 sec 1/4 Mile Sporty Build Thread

Well many years ago I bought 1995 Sporty as a roller. Bought and installed a Buell Lightning motor (103 hp stock). With a stock carb. it went 12.25 at Baytown. Later installed a flatslide and really woke it up. I hurt the crank bearing and picked up a 2002 Sportster engine with 50,000 miles. Been on it for about 25,000 miles and the head breather is just steady dripping oil. So I'm installing late model closed chamber heads off a 2007 Sporty, new pistons and BIG cams. Shooting for a 11 Sec. daily driven ground pounder.
Cam specs Intake Exhaust Duration
.536 .536 .211''/191''
Pics and Vids to come. Stay tuned.
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Old 03-23-2014, 12:17 AM   #2
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Old 03-23-2014, 12:21 AM   #3
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Old 03-23-2014, 12:23 AM   #4
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Old 03-23-2014, 12:32 AM   #5
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I drove it on the lift around 1 pm today. Pistons n cams are installed. Also would like add that I'm proof how tough these sportys are. I ride hard! Ask Magic man lol. I'm going to see first person how hard and long one of these engines will go. An 18 year old bike too. Stay tuned.See if this engine can stay together and not blow up LOL.
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Old 03-23-2014, 12:48 AM   #6
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I'll tell you how tough they are, years ago a fella brought me a sporty that was knocking pretty bad, real bad. He said he had driven it around 100 miles at around 100 miles knocking like that! When I took it apart, the crank pin bearings where a rectangular shape, rather than being round they had 4 sides and had been sliding rather than rolling. Changed out the crank pin and a set of bearings, rods were still good so he got by fairly cheap considering.

Take just about any motor that has babbit bearings that spun a rod bearing and it won't go 10 miles at 100 miles an hour much less 100 miles at 100 plus. It takes a lot of damage for one of those motors to quite running or seize up.

Those Harley motors are quite durable to say the least and for those who don't know, they dominate top fuel so they can go fast.

I'm not a HD kind of guy, like my sport bikes but I do know a thing or two about a HD!
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Old 03-23-2014, 01:19 AM   #7
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Quote:
Originally Posted by Therodman View Post
Those Harley motors are quite durable to say the least and for those who don't know, they dominate top fuel so they can go fast.
Durable is not a word that I have ever heard used to describe a Harley Davidson motorcycle and I found a list of record top fuel passes that didn't contain a single Harley powered bike. at least not on the first page of 32 entries. in fact, I have been to more than a few top fuel Harley events and less than half of the bikes seem to make a full pass without failing in one way or another.
don't get me wrong, I'm not hating on them but they're "Hardley" worth bragging about.
http://www.draglist.com/draglist/cat...EAR%2CMPH+DESC


but an 11 second streetable Harley is pretty respectable. nice build Skelator.
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Old 03-23-2014, 01:35 AM   #8
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Old 03-23-2014, 01:43 AM   #9
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when do you plan on taking it to the strip? i wouldn't mind being there to watch.
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Old 03-23-2014, 03:04 AM   #10
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Quote:
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Durable is not a word that I have ever heard used to describe a Harley Davidson motorcycle and I found a list of record top fuel passes that didn't contain a single Harley powered bike. at least not on the first page of 32 entries. in fact, I have been to more than a few top fuel Harley events and less than half of the bikes seem to make a full pass without failing in one way or another.
don't get me wrong, I'm not hating on them but they're "Hardley" worth bragging about.
http://www.draglist.com/draglist/cat...EAR%2CMPH+DESC


but an 11 second streetable Harley is pretty respectable. nice build Skelator.
Not bragging, could care less about a HD, just a comment of what I've seen. We all see what we want to see and if you think they're slow and a bunch of junk, good for you! Like I said, I could care less about a HD or any similar bike.......!
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Old 03-23-2014, 08:25 AM   #11
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new style 04 and above heads fit on an earlier block? come on, really?
btw, my 04 sporty was in the 140+ hp range with a nallin performance built 1210 motor and 8# boost with a warner-ishi RHB-52.
edit:
while its apart, shave the cam cover, makes it look pre-unit style.
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Old 03-23-2014, 09:27 AM   #12
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Harley doesn't make those top fuel motors.
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Old 03-23-2014, 09:38 AM   #13
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Polish them ports while you got it apart.
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Old 03-23-2014, 10:41 AM   #14
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Quote:
Originally Posted by ScooterTrash View Post
new style 04 and above heads fit on an earlier block? come on, really?
btw, my 04 sporty was in the 140+ hp range with a nallin performance built 1210 motor and 8# boost with a warner-ishi RHB-52.
edit:
while its apart, shave the cam cover, makes it look pre-unit style.
Yes the heads should work. Bout to find out. Post Pic of shaved cover u speak of.
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Old 03-23-2014, 10:42 AM   #15
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Quote:
Originally Posted by El Pachuco View Post
when do you plan on taking it to the strip? i wouldn't mind being there to watch.
When i get it all finished. I'll shoot you a pm
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Old 03-23-2014, 11:16 AM   #16
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Quote:
Originally Posted by ScooterTrash View Post
new style 04 and above heads fit on an earlier block? come on, really?
btw, my 04 sporty was in the 140+ hp range with a nallin performance built 1210 motor and 8# boost with a warner-ishi RHB-52.
edit:
while its apart, shave the cam cover, makes it look pre-unit style.
This is my budget bike. I prolly have 5,500 in it and have logged A lot of miles!
I'm using 2007 pistons and head. 1995 camshafts by changing the worm gear on the crankshaft. The pitch on the gears is different. Mic'd them within range on width, when I need more width clearance I remove the bushing and sand it down on a piece of glass. I'm poor boy style ballin on a budget.
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Old 03-23-2014, 11:21 AM   #17
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Not bragging, could care less about a HD, just a comment of what I've seen. We all see what we want to see and if you think they're slow and a bunch of junk, good for you! Like I said, I could care less about a HD or any similar bike.......!
If you wanna go fast Harley is not the way. I love my inline four bikes but it's apples to oranges. My Harley gives me a joy no sportbike can. I prefer the sporty for daily commuting it's just less drama from cops and more fun in traffic. A lot more respect too.
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Old 03-23-2014, 03:10 PM   #18
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Yes the heads should work. Bout to find out. Post Pic of shaved cover u speak of.
ok then ill answer for you, they will not work. thats a totally different 1200 than 04 and newer.
the cylinders, pistons, cams heads etc are very much different animals, the best heads you mentioned that will work are the buell heads on the previous motor
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Old 03-23-2014, 03:12 PM   #19
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This is my budget bike. I prolly have 5,500 in it and have logged A lot of miles!
I'm using 2007 pistons and head. 1995 camshafts by changing the worm gear on the crankshaft. The pitch on the gears is different. Mic'd them within range on width, when I need more width clearance I remove the bushing and sand it down on a piece of glass. I'm poor boy style ballin on a budget.
not only pitch is different but they are timed differently and will not interchange between motors. Might want to get to reading before you spend money in the wrong direction.
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Old 03-23-2014, 04:48 PM   #20
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not only pitch is different but they are timed differently and will not interchange between motors. Might want to get to reading before you spend money in the wrong direction.
Well . My homeboy got murdered n I acquired a large pile of sportster parts from his wife. Will 95 heads work on a 2002?
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