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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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  #1  
Old 19th June 2020
NGOT8R NGOT8R is offline
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Default What’s your fuel injected 1275 idle speed?

To members with 1275 fuel injected engines; what idle speed are you running? My PV is showing a set idle speed of 1118. Should this be slightly higher with Impact .560 cams or is this perfect? Thanks
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Old 19th June 2020
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Its programmed in the computer. You can change it with a power vision. But that's perfect. I think my is 1050.
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Old 19th June 2020
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Thanks hexnut. I wasn’t sure if I needed to raise it or not. I’ll leave it at 1118.
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Old 19th June 2020
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Quote:
Originally Posted by NGOT8R View Post
Thanks hexnut. I wasn’t sure if I needed to raise it or not. I’ll leave it at 1118.
Mines set at 1,000 rpm when up to temp. It's 1,300 rpm after a cold start and then drops down. Idle MAP is 40 KPa when up to temp.
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Old 13th August 2020
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Quote:
Originally Posted by Tomcatt View Post
Mines set at 1,000 rpm when up to temp. It's 1,300 rpm after a cold start and then drops down. Idle MAP is 40 KPa when up to temp.
That's because of your tune to run best at 1600 rpm and your whacked out timing table. Both my sporty and now my tc 103" idle at 33 - 34kpa
and your elevation isn't much different.
In fact most people I know are low to mid 30s and lower is better.

Last edited by 60Gunner; 13th August 2020 at 22:37..
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