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Author Topic: Harley Sportster at Wilmington  (Read 34277 times)

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Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #75 on: June 26, 2013, 12:15:47 PM »
Good to go with 70 ft lbs as recommended...



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Offline runt13

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Re: Harley Sportster at Wilmington
« Reply #76 on: June 26, 2013, 12:36:16 PM »
turbocat, you going to be at Wilmington in july?
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who would have guessed it would take so long to go so fast for such a short time?

2012 Wilmington mile
April meet,
p/pp-1350/4 record, 132.601mph

September meet,
p/pp-1350/4 record 139.915mph [bump]
p/pp-1650/4 record 142.364 mph
p/pp-2000/4 record 140.009 mph
p/pp-3000/4 record 144.511 mph

2013 Wilmington mile
July meet,
m/pg-1650/4 record 137.278
m/pg-2000/4 record 136.695

Sept meet,
p/pp-1350/4 record 141.1986 [bump]

2014  Wilmington mile
May meet
p/pp-1340/4 record 142.5855 [bump]

Offline rouse

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Re: Harley Sportster at Wilmington
« Reply #77 on: June 26, 2013, 12:43:54 PM »
How many dots can you line up at a time?

Looks like the 3 cam is a tooth off from the picture!

I would indicate the cams in to make sure, if were me.

BTW. I have a brand new custom ground cam from a well know cam company, that I paid "BIG Bucks" for, Twin cam engine. I found the rear cam was 6 degrees retarded. I found that when trying to figure out why I didn't get an expected power gain with that cam. I did the usual check of the front cam ( which is last in line gear wise ) and it was right on the money, so I didn't check the rear cam at that time. Mix emotions upon finding that problem, happy I found the problem, pissed that I paid so much for that cam.

I check every lob on every cam now, just to make sure.

Rouse
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Johnnie Rouse
Bike 4680 P-PP2000 SCTA record 153.325    A-PF3000 182.920
                              Texas Mile 152.518 PP class  186 A-PF Class
If you love your freedom thank a vet.

Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #78 on: June 26, 2013, 01:43:23 PM »
Won't make it till September Runt-

It was off on #3 Rouse in the above pics...remedied.  :cheers:

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Offline rouse

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Re: Harley Sportster at Wilmington
« Reply #79 on: June 26, 2013, 02:54:24 PM »
You owe me a beer the next time we run across paths.  :-D

I just thought something looked a little off, I'd still profile the cam on all four lobs, if it were me.

Rouse
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Johnnie Rouse
Bike 4680 P-PP2000 SCTA record 153.325    A-PF3000 182.920
                              Texas Mile 152.518 PP class  186 A-PF Class
If you love your freedom thank a vet.

Offline runt13

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Re: Harley Sportster at Wilmington
« Reply #80 on: June 26, 2013, 03:38:05 PM »
wasn't planning on Sept. but one never knows!

there are a few things I learned and some things I was taught.

watch the flag! love me a tailwind!

leave the line hard and carry the speed threw to the top

tuck, tuck, tuck, toes in, elbows in, chin on tank, backside slid back to the passenger seat. every possible body point touching the bike.

the way I got over 140 with an OEM tube frame Buell, was short shifting 1st and getting into top gear at the 1/2 mile mark. seems the key for the small under 100hp motors is to carry the speed from the lower gears into top gear, and being in top gear at the 1/2 mile mark. we were actually geared perfect with a 30 tooth primary [engine], 32 tooth trans, and 55 tooth rear pulley we were going threw the traps at 6800 rpms, right were everything starts to drop off.

well that's what did it for us. going to try top my speeds in July.

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who would have guessed it would take so long to go so fast for such a short time?

2012 Wilmington mile
April meet,
p/pp-1350/4 record, 132.601mph

September meet,
p/pp-1350/4 record 139.915mph [bump]
p/pp-1650/4 record 142.364 mph
p/pp-2000/4 record 140.009 mph
p/pp-3000/4 record 144.511 mph

2013 Wilmington mile
July meet,
m/pg-1650/4 record 137.278
m/pg-2000/4 record 136.695

Sept meet,
p/pp-1350/4 record 141.1986 [bump]

2014  Wilmington mile
May meet
p/pp-1340/4 record 142.5855 [bump]

Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #81 on: June 26, 2013, 03:49:39 PM »
Quote from: rouse on June 26, 2013, 02:54:24 PM
You owe me a beer the next time we run across paths.  :-D

I just thought something looked a little off, I'd still profile the cam on all four lobs, if it were me.

Rouse

I actually changed it right after I took the first pics, but I would be glad to buy you a brew...thanks for looking out for me!  :cheers:

Not enough time for me to make the July meet...I'll use the time to break-in and finalize configuration.
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Offline rouse

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Re: Harley Sportster at Wilmington
« Reply #82 on: June 26, 2013, 05:31:03 PM »
That will work. and I'll buy one back, just not to many times in a row. :cheers: :cheers: :cheers:

Rouse
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Johnnie Rouse
Bike 4680 P-PP2000 SCTA record 153.325    A-PF3000 182.920
                              Texas Mile 152.518 PP class  186 A-PF Class
If you love your freedom thank a vet.

Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #83 on: June 27, 2013, 03:53:25 AM »
Last minute decision to upgrade/order pushrods will delay me this weekend, but I can go ahead and set cylinders/pistons.



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Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #84 on: June 28, 2013, 09:11:52 AM »
Delay is cancelled...pushrods arrived yesterday!  :cheers:

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Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #85 on: June 29, 2013, 01:27:09 AM »
Checking squish for the first time showed .055 for the front cylinder and .050 for the rear...too much clearance. Weighed my options then finally removed the base gaskets and applied Yamabond 4 sealant in their place. Squish is now at .038 for the front and .033 for the rear.





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Offline TurboCat

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Re: Harley Sportster at Wilmington
« Reply #86 on: July 04, 2013, 12:21:32 PM »
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Offline runt13

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Re: Harley Sportster at Wilmington
« Reply #87 on: July 06, 2013, 09:43:11 AM »
its raining at the track! lol
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who would have guessed it would take so long to go so fast for such a short time?

2012 Wilmington mile
April meet,
p/pp-1350/4 record, 132.601mph

September meet,
p/pp-1350/4 record 139.915mph [bump]
p/pp-1650/4 record 142.364 mph
p/pp-2000/4 record 140.009 mph
p/pp-3000/4 record 144.511 mph

2013 Wilmington mile
July meet,
m/pg-1650/4 record 137.278
m/pg-2000/4 record 136.695

Sept meet,
p/pp-1350/4 record 141.1986 [bump]

2014  Wilmington mile
May meet
p/pp-1340/4 record 142.5855 [bump]
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