How high do you rev your evo?
Road Captain
Joined: Jun 2008
Posts: 640
Likes: 13
From: Hickory, NC area
I know I've topped 5k on my 90 FLHTCU a few times. It wasn't making much more power, it was just the process of shifting and racing a friend. Normally I don't go that far as you can feel the power start to taper off after about 4500. Part of me wants to blow it up so I can get a shiny new engine - a really big one. But the smarter part of me wants to keep it going a long time as I really do like the way it runs. My highway speed is generally 70-75 and that is right around 3000.
Cruiser
Joined: Nov 2006
Posts: 193
Likes: 1
From: Arnold, MO
The 80 I used to have had 10 to 1 wiesco's, ported heads, EV-27, a Thunderheader, Mikuni 42 and a Crane HI-4E. I had the rev limited set at 5600 and she would pull up to the limiter but was starting to fall off. The V-Thunder 5010 would pull to the limiter without fall off. Didn't run it that hard very much but I put 35,000 on it until I stripped the timing plug and bought the 113.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
Hey Fatboy,
Did you know that Midwest/Ultima is having an open house/bike show/dealers convention on October 3rd. We will be there, so if you are in the neighborhood stop by and say hello.
Did you know that Midwest/Ultima is having an open house/bike show/dealers convention on October 3rd. We will be there, so if you are in the neighborhood stop by and say hello.
4th Gear
Joined: Aug 2009
Posts: 8
Likes: 0
From: Oregon
Lots of input here. The ev-27 is focused on midrange power - where we spend most of our time. As Ogre says, higher RPMs is just noise; when getting on it, shift between 4500 and 5500. And as Dog says, blow out the carbon once in a while.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,196
Likes: 3,085
From: NW AR
I shift when it feels right. I have no rev limiter with my early SE ignition. So, every once in a while, I run it until the valves float and hit the next gear. Usually, though, if I'm trying to make power, I guess I shift around 5500 to 6K or so. Otherwise, if just normal riding, I run it up until it feels like the next gear will pull good. Same with going down. If I can make more power in the next gear down and I need it, I downshift.
In '02, my speedo went out on the way to Sturgis. Going across I90 all the way, I just set the tach at 4000-4200 RPM and left it there. On the way back, I had fixed the speedo and realized that might have been a tad fast, at like about 90-95. Guess that's why all them twinkies weren't keeping up. Pulling onramps behind Twinkies, especially at altitude, I have to back off of full throttle.
In '02, my speedo went out on the way to Sturgis. Going across I90 all the way, I just set the tach at 4000-4200 RPM and left it there. On the way back, I had fixed the speedo and realized that might have been a tad fast, at like about 90-95. Guess that's why all them twinkies weren't keeping up. Pulling onramps behind Twinkies, especially at altitude, I have to back off of full throttle.
Tourer
Joined: Sep 2009
Posts: 309
Likes: 2
From: Tegucigalpa
the ignition module that I have has 4 curves going from 6300 rpm to 8000 and according tospecs I have it set at 7000 rpms but can't seem to find that great of a difference, maybe because I don't rev the engine if not needed
As when driving cars or any other clutch driven vehicle, there's a spot in which the gears merge, sort of speak,this spot in cars is generally between 2500 -3000 rpm
the spot I'm talking aobut is the place in which u shift and u can't feel a sudden change but still strong to continue going, put in simpler ways... it's between the bike needing more gas to get power and the point in which u can feel the compression braking of the engine,if u hit the spot ur ride will be smoother and u will also improve MPG
As when driving cars or any other clutch driven vehicle, there's a spot in which the gears merge, sort of speak,this spot in cars is generally between 2500 -3000 rpm
the spot I'm talking aobut is the place in which u shift and u can't feel a sudden change but still strong to continue going, put in simpler ways... it's between the bike needing more gas to get power and the point in which u can feel the compression braking of the engine,if u hit the spot ur ride will be smoother and u will also improve MPG
Ultimate HDF Member
Joined: Jun 2007
Posts: 9,193
Likes: 494
From: Richmond, VA
My bike is stone stock, I seem to shift her at about 3000 for most riding. For the first time since I bought her a month ago, I did ring her out threw 4 gears right to 5K and grabbed the next one. Just kinda wanted to know what she would do. She didn't seem to mind. I have a Buell I race at the track for when I feel like beating on a bike.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Stage I
Joined: Sep 2009
Posts: 1
Likes: 0
Bone stock motor with S&S Carb, Drag Pipes, Adjustable Ignition Module, and a EV-51 Andrews cam. Pulls great till 6500 and the rev limiter is set at 7000 which i hit a lot when im power shifting. Runs great with 10K miles...
