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Top safe RPM ?   Printable Version Harley Davidson Forums >> Harley Davidson Motorcycles >> Classic >> Shovelhead >> Top safe RPM ? Page: [1] Login Message << Older Topic   Newer Topic >> Top safe RPM ? - 4/30/2008 8:28:28 AM    tedali2004 Posts: 458 Joined: 6/22/2006 From: Florida Status: offline http://s248.photobucket.com/albums/gg183/tedali2004/?action=view&current=Shovelheadcloseup.jpg So I've been doing my work commute on my '76 Shovel.  I was wondering what the highest cruising rpm is on this motor.  The engine has been upgraded with 93" S&S kit.  I have been running steady 3000 rpm on the Interstate and I don't feel this will hurt the motor at all, but I was wondering how high I can hold the revs without stressing the stroker. _____________________________ ======<> <> Post #: 1 RE: Top safe RPM ? - 5/1/2008 7:05:37 AM    Rodney Posts: 689 Joined: 5/23/2007 From: Central Oregon Status: offline I'm sure the S&S rotating assembly is good to 6000 rpm oiling system and valve train would be the place of failure at high RPM. are you running an oil cooler? _____________________________ 1968 FLH owned for 30 years 2002 FXSTDI (in reply to tedali2004) Post #: 2 RE: Top safe RPM ? - 5/1/2008 8:01:36 AM    tedali2004 Posts: 458 Joined: 6/22/2006 From: Florida Status: offline Yes I have a cooler. I'm sure the crank has red line around 5500-6000 rpm.  I'm just wondering what rpm I should stop at when running for a hour down I-95.  I noticed that below 85 degree air temp the oil cooler (Jeggs) works too well.  Oil temp stay about 150 degrees.  When I block the cooler with cardboard and get the temp to 170-180 it idles smoother and gets better gas milage.  I know the 60 or 70 weight oil doesn't really flow till warm. _____________________________ ======<> <> (in reply to Rodney) Post #: 3 RE: Top safe RPM ? - 5/4/2008 7:03:15 AM    southphillyed   Posts: 90 Joined: 4/5/2008 Status: offline I had a tach on my 66 shovel for the last 8 years...eliminates any doubt as to what the motor is doing.Your motor ought to be able to maintain 3 grand hour after hour with those operating temps!! (in reply to tedali2004) Post #: 4 Login OR Register now to post a reply to this forum topic. Page:   [1]   Harley Davidson >> Harley Davidson Motorcycles >> Classic >> Shovelhead Jump to: Select a ForumAll Forums---------------------- [General Harley Davidson Forums] - - New Members Area - - Members Meeting Members - - General Harley Davidson Chat - - Harley Davidson Videos - - - - Off Topic Videos - - HDForums Mascot - - Bike of the Month - - Off Topic - - - - Humor - - - - Games [Harley Davidson Motorcycles] - - Softail Models - - VRSC Models - - Dyna Glide Models - - Sportster Models - - Touring Models - - Screamin Eagle CVO Models - - Evo Classic Models - - Custom Models - - Classic - - - - Shovelhead - - - - Knuckle Head - - - - Panhead - - - - Flathead - - - - Ironhead - - "Hacked, Triked and Trailering" - - Motorcycle Pictures By Model - - - - Softail Pictures - - - - VRSC Pictures - - - - Dyna Glide Pictures - - - - Sportster Pictures - - - - Touring Model Pictures - - - - All Other Models [General Harley Davidson Tech Forums] - - Primary/Transmission/Driveline/Clutch - - Electrical/Ignition/Tuner/ECM/Fuel Injection - - Oil and Oil related topics - - Frame/Suspension/Front End/Wheels/Tires/Brakes - - Engine/Fuel/Intake/Exhaust - - Other [Do It Yourself Help Forum] - - General - - Electrical and Lighting - - Chassis, Suspension, Brakes, and Front End/Controls - - Engine Diagnostics , Alarm, and Fuel Injection Issues - - Engine Related - - Fuel/Carb Related - - Oil Related - - Tech Tips - - Transmission/Clutch and Primary Related [This 'n' That] - - Sports Forum - - - - College Sports - - - - Professional Sports - - Support for The Troops and their Families - - The Photoshopping Place - - Project Room - - Road Trips - - The Gun Enthusiast - - The Motorcycle Activist - - Detailing - - Product Reviews - - T-shirt Swap Shop [Sponsoring Vendors] - - C&C Motorcycle Seats - - Biker-Products a.k.a The Best MC Glasses - - Mean City Cycles - - Motorcycle Metal - - My Wholesale Garage - - RoadLoK Security - - SparkPlugs.com [Harley Davidson Classifieds] - - Vendor For Sale Classifieds - - Motorcycles For Sale - - Want To Buy - - Motorcycle Parts For Sale - - Gear and Other Items For Sale - - Trades & Freebies (See Subforums for specific models) - - - - Touring Models - - - - Dyna Models - - - - Softail Models - - - - Sportster Models - - - - V-Rod Models - - - - All Other Models - - Good Or Bad Shopping Experiences At HDF [Regional Events, Rides and Road Reports] - - National Events - - Northeast - - Southeast - - Great Lakes - - Pacific - - Mountain - Prairie - - Southwest - - Other Countries [Memorial Forums] - - In Memory Of... - - On The Mend... - - Prayer Requests [Other] - - Forum Issues - - - - Testing Area - - - - - - Sturgis Bike Week - - - - - - Gordon's Custom Motorcycle Parts - - - - - - Oncycles.com Motorcycle Riders Mall

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