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Last Post: Crusty
Posted On: 1 Hour Ago
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9th July 2022
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Chief Harley Engineer
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Join Date: Nov 2010
Location: Skippack, PA
Posts: 501 Sportster/Buell Model: 1200C Sportster/Buell Year: '06 Sportster/Buell Model #2: XLCH Drag Bike Sportster/Buell Year #2: '63 Other Motorcycle Model: XLH Other Motorcycle Year: ‘79
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First time running bike in the 1/4
Buddy and I ran our Sportsters for the first time in the 1/4. Previously did an outing at a sub 1/8th mile track. Bike is a basic 1275 setup with 106rwhp. It weighed in at 535 lbs and track was about +2500 DA. My best ET was 11.80, best trap speed was 117. My 60 foots averaged 2.0  A regear is in order as I either had to shift into 5th right before the traps or ride the limiter. I think there’s lots more in it, mainly me. I kept giving it more and more on the launch but it wasn’t translating to a better 60. It lightly spun 1 or 2 passes and bogged a few. Bike has no tach or anything, is a ride it an hour there, race it, ride it an hour home kinda deal. Was running street tires with 30 psi out back. Wondering what launch techniques or suggestions you have?
I’m in the background, my buddy in the foreground.
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9th July 2022
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XL FORUM TEAM MEMBER
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Join Date: Feb 2010
Location: Dunnellon FL
Posts: 4,750 Sportster/Buell Model: XL 883/1200 Hugger Sportster/Buell Year: 1995 Sportster/Buell Model #2: 11 RK
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Looks like fun. Never raced personally but many here have. Hopefully they will chime in with suggestions.
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...Once in a while you get shown the light, in the strangest of places if you look at it right...~Robert Hunter/Jerry Garcia
 (In remembrance of Ruby Red "Beebe")
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9th July 2022
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Dazed & Confused
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Join Date: Feb 2019
Location: Never Never Land
Posts: 3,458 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2017 Other Motorcycle Model: BMW R9T Other Motorcycle Year: 2015
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Clear some space in your PM's inbox.
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2017 XL1200C in SE Wisconsin, USA
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9th July 2022
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Chief Harley Engineer
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Join Date: Nov 2010
Location: Skippack, PA
Posts: 501 Sportster/Buell Model: 1200C Sportster/Buell Year: '06 Sportster/Buell Model #2: XLCH Drag Bike Sportster/Buell Year #2: '63 Other Motorcycle Model: XLH Other Motorcycle Year: ‘79
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Quote:
Originally Posted by Tomcatt
Clear some space in your PM's inbox.
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I did the other day. Dunno what’s going on unless the message limit was decreased from 25 to something else? |
9th July 2022
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Dazed & Confused
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Join Date: Feb 2019
Location: Never Never Land
Posts: 3,458 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2017 Other Motorcycle Model: BMW R9T Other Motorcycle Year: 2015
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This is what I get:
wrkdWS6 has exceeded their stored private messages quota and cannot accept further messages until they clear some space.
It's total stored messages (sent also) not just what's in your inbox.
Last edited by Tomcatt; 9th July 2022 at 15:06..
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9th July 2022
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Chief Harley Engineer
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Join Date: Nov 2010
Location: Skippack, PA
Posts: 501 Sportster/Buell Model: 1200C Sportster/Buell Year: '06 Sportster/Buell Model #2: XLCH Drag Bike Sportster/Buell Year #2: '63 Other Motorcycle Model: XLH Other Motorcycle Year: ‘79
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Fixed, had to get the total message count under 10.
Edit: attn Mods, accidentally put this in wrong sub-forum, can you please bump it over to the Sportster drag racing area?
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9th July 2022
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XL FORUM TEAM MEMBER
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Join Date: May 2019
Location: surrey, bc
Posts: 406 Sportster/Buell Model: xlch Sportster/Buell Year: 1972 Other Motorcycle Model: homebilt fxr Other Motorcycle Year: 80+
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lower psi in rear, mid/low 20s
maybe some struts you could put on @ track
or stiffest preload on shocks while yer there
not a racer by any means, but made a few tenths diff on couple of nortons yrs ago
500-16 rubber, not stock 19
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pete
Last edited by rocketnorton; 9th July 2022 at 18:53..
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11th July 2022
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Chief Harley Engineer
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Join Date: Nov 2010
Location: Skippack, PA
Posts: 501 Sportster/Buell Model: 1200C Sportster/Buell Year: '06 Sportster/Buell Model #2: XLCH Drag Bike Sportster/Buell Year #2: '63 Other Motorcycle Model: XLH Other Motorcycle Year: ‘79
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Quote:
Originally Posted by rocketnorton
lower psi in rear, mid/low 20s
maybe some struts you could put on @ track
or stiffest preload on shocks while yer there
not a racer by any means, but made a few tenths diff on couple of nortons yrs ago
500-16 rubber, not stock 19
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thank you, will try those suggestions out. |
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