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01-19-2011, 06:47 AM
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Lowest Idle RPM?
What is the lowest safe idle RPM for a 96" motor? I have 255 cams and a PCIII. Are there oil pressure concerns at say 800 RPM? I'm still searching for that old harley sound!
SP
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__________________
99 FXR3 - Gone but not Forgoten
08 Street Glide
SE255 Cams
HD Heavy Breather
V&H Pipes
PCIII
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01-19-2011, 06:50 AM
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Get a carbed Evo if you want that "old Harley sound".
__________________
 1996 Road King Police,Wiseco 10:1 pistons,Crane Fireball 326 cam,V&H Fuelpak,Samson fishtails  "Gimme back my bullets, put em back where they belong"-Lynyrd Skynyrd  
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01-19-2011, 07:16 AM
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900-1100 should be the standard idle RPM, I would not go lower then that.
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01-19-2011, 07:23 AM
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+3 on the above comments.
__________________
"One more and I gotta go"
2006 Ultra - SS510G Gear Cams, 95 Big Bore Kit, Wiseco flat top pistons 9.5:1, Bub 7 True Duals, 0.030 Cometic Head Gaskets, AN Big Sucker A/C, Fueling Lifters, SE Super Tuner, Baisley Spring, Herko fuel line cross over quick release and a Dyno. 89HP and 99TQ.
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01-19-2011, 07:39 AM
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Yup 900 is the lowest recommended RPM because of oil pressure concerns.
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2007 Street Glide -
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01-19-2011, 08:22 AM
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Quote:
Originally Posted by Mike T
Get a carbed Evo if you want that "old Harley sound".
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That's what it takes!
Quote:
Originally Posted by FX4
Yup 900 is the lowest recommended RPM because of oil pressure concerns.
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That's the best reason there is.
BUT, I also find that about 1,100 RPMs keep the charging system putting out the correct amount at an Idle.
__________________
1986 FLTC Tour Glide Classic
EV 27 / Crane Hi4e / 52k Orig. Miles
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01-19-2011, 08:30 AM
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You could swap in some SE-204 cams and it might sound better to your ear.
If you want that real harley sound, forgo $5000 in upgrades to you street glide and buy your self a nice shovelhead.
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01-19-2011, 09:05 AM
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Quote:
Originally Posted by inverse121
If you want that real harley sound, forgo $5000 in upgrades to you street glide and buy your self a nice shovelhead.
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That would get the job done. Our TC's don't have enough flywheel weight to stay running at rpm's a shovelhead is happy, anyway.
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-Nick
'07 CRF450X, 2011 black RKC- V&H fishtails/S&S teardrop ac/TTS/14" wild1's
www.caintmakit.com
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01-19-2011, 09:20 AM
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No oil pressure worries at low rpms but TCs should idle at the high end of the recommended range, say 1100rpms to keep the battery charged. You will never get the choppy idle with the 255 cams. If you want that idle, install a set of SE204s. It won't sound like a shovel but it is as close as you will get. Your exhaust also makes a difference; a 2:1 will sound different from 2:2.
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01-19-2011, 09:30 AM
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Quote:
Originally Posted by blusmbl
That would get the job done. Our TC's don't have enough flywheel weight to stay running at rpm's a shovelhead is happy, anyway.
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Its the overlap that makes it sound the way it sounds.
Evo with an EV27 cam sounds pretty good, too, but its hard to beat the sound of a shovel.
You really should run a shovel at 900 rpm or above, too, but many idle them down low. I idle my 75 around 900 (footshifter) and my 76 (handshifter) around 1000. |
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Tags
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2007, 800, 900, 96, cam, cams, choppy, ci, davidson, electraglide, harley, idle, install, rpm, twin  |
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