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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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  #541  
Old 9th August 2016
MatHormell's Avatar
MatHormell MatHormell is offline
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Sportster/Buell Model: XL883R
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man I've been dying to get my bike back on the dyno to see what she's really putring down.. -I LUV XLF!--I LUV XLF!--I LUV XLF!--I LUV XLF!-ing dyno kept blowing fuses.. And fried our dynoware R/T eddy current brake driver.. 3rd time it's happened.. So. I rip the dyno apart.. Finally find the issue... The torque converter arm or what ever on the brake was shorted out.. So hopefully will get replacement parts by Thursday so I can rerun this biatch!! Anyways while I was in the dyno I merged my HP and TQ graphs.. Relooking at it.. This motor has way more power still in it.. Disregard the weird squiggles at the bottom.. Pick up tripped out at first..


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Last edited by MatHormell; 9th August 2016 at 19:54..
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  #542  
Old 9th August 2016
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Well that looks like shit.. Here's another



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  #543  
Old 9th August 2016
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MatHormell MatHormell is offline
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Definitely was having a flat spot after 5500. Probably the jetting

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  #544  
Old 9th August 2016
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Those are some nice numbers!!!

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  #545  
Old 9th August 2016
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Sportster/Buell Model: XL883R
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Quote:
Originally Posted by TX Dreamer View Post
Those are some nice numbers!!!

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Yea they are very good, but not all she's capable of.. And with what's in this motor, it should be a bit higher.. Granted this run was all on the real rich side and it was shut down at 7k. I haven't actually tuned it yet, just safe for break in and WOT.. The needle range is pretty rich, I noticed that on the street with the innovative.. But haven't adjusted it until I get it back on the dyno.. Timing hasn't been messed with at all.. It's actually retarded a couple degrees, so I'm hoping after some real good fine tuning she'll be where she should be!

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  #546  
Old 9th August 2016
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[quote name="TX Dreamer" post=5425952]Those are some nice numbers!!!<br />
<br />
Sent from my Nexus 6P using Tapatalk[/QUOTE]<br />
Yea they are very good, but not all she's capable of.. And with what's in this motor, it should be a bit higher.. Granted this run was all on the real rich side and it was shut down at 7k. I haven't actually tuned it yet, just safe for break in and WOT.. The needle range is pretty rich, I noticed that on the street with the innovative.. But haven't adjusted it until ingest back on the dyno.. Timing has been messed with at all.. It's actually retarded a couple degrees, so I'm hoping after some real good fine tuning she'll be where she should be! <br />
<br />
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Where do you think your final numbers will be? 130ish HP and 110ish TQ?

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  #547  
Old 9th August 2016
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Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
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Quote:
Originally Posted by TX Dreamer View Post
[quote name="TX Dreamer" post=5425952]Those are some nice numbers!!!<br />
<br />
Sent from my Nexus 6P using Tapatalk
<br />
Yea they are very good, but not all she's capable of.. And with what's in this motor, it should be a bit higher.. Granted this run was all on the real rich side and it was shut down at 7k. I haven't actually tuned it yet, just safe for break in and WOT.. The needle range is pretty rich, I noticed that on the street with the innovative.. But haven't adjusted it until ingest back on the dyno.. Timing has been messed with at all.. It's actually retarded a couple degrees, so I'm hoping after some real good fine tuning she'll be where she should be! <br />
<br />
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Where do you think your final numbers will be? 130ish HP and 110ish TQ?

Sent from my Nexus 6P using Tapatalk[/QUOTE]
My inflated goal was 135/115 I think it will easily get 130/110 though

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  #548  
Old 9th August 2016
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Would love to see this 1/4 mile times drop into the 10's. Abilene has an 1/8 mile track, not sure when they race though.

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  #549  
Old 9th August 2016
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130 hp.....nice!

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  #550  
Old 9th August 2016
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MatHormell MatHormell is offline
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Quote:
Originally Posted by TX Dreamer View Post
Would love to see this 1/4 mile times drop into the 10's. Abilene has an 1/8 mile track, not sure when they race though.

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Yea I got a close 1/8 mile in Denton and another in Kemp tx.. May go to one and just. Work on 60s

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