80" Evo advice
Thread Starter
|
6th Gear
Joined: May 2021
Posts: 14
Likes: 3
From: Kokomo Indiana
I had it setup for Dyno run last year, guy who is top dog around these parts, Mobile Dynamometer, is a very long time friend of mine, had me on the rack and did a few adjustments and told me to do a few things to it before he puts his magic on it, so I did, and just waiting for weather to break, as he won't do any Dyno tuning untill it's a steady 60 degrees or above. Brand new that bikes top speed was 92mph, I've had her over 120 and still had excitable throttle left. Want to go bigger cam, primary changeover, add 6 speed, and maybe eventually Big bore, but for now, at 33 years old, she'll hang and then some
Stellar HDF Member
Joined: Aug 2020
Posts: 3,159
Likes: 2,202
From: College Station, TX
The starter comments are a good suggestion since you plan on keeping this bike. However, I didn't see anything about the battery rating or age etc. Be sure your battery is fully charged and has as many amps as you can find too. But even that will only help so much with your current starter.
As far as getting more power out of an 80 inch EVO, going with a "bigger" cam will likely kill your bottom end performance in an effort to get more . The EV27 closes the intake valves at 36 degrees with 235 duration, which helps with the low end but will also pull through about 5800 rpm. So what you have now sounds like a good setup that is dependable too.
Paul
As far as getting more power out of an 80 inch EVO, going with a "bigger" cam will likely kill your bottom end performance in an effort to get more . The EV27 closes the intake valves at 36 degrees with 235 duration, which helps with the low end but will also pull through about 5800 rpm. So what you have now sounds like a good setup that is dependable too.
Paul
Seasoned HDF Member
Joined: Jan 2015
Posts: 15,944
Likes: 7,037
From: Sandy Eggo's North County
I'd go with a Hitachi starter. (I had them on my 95 & 96 evo's.) Very robust.
Throw away that junk battery and get an Anti-Gravity w/restart.
Lastly, your alternator puts out 28 amps. Remember this when running your radio at 400W... You're running a deficit.
Throw away that junk battery and get an Anti-Gravity w/restart.
Lastly, your alternator puts out 28 amps. Remember this when running your radio at 400W... You're running a deficit.
Thread Starter
|
6th Gear
Joined: May 2021
Posts: 14
Likes: 3
From: Kokomo Indiana
The starter comments are a good suggestion since you plan on keeping this bike. However, I didn't see anything about the battery rating or age etc. Be sure your battery is fully charged and has as many amps as you can find too. But even that will only help so much with your current starter.
As far as getting more power out of an 80 inch EVO, going with a "bigger" cam will likely kill your bottom end performance in an effort to get more . The EV27 closes the intake valves at 36 degrees with 235 duration, which helps with the low end but will also pull through about 5800 rpm. So what you have now sounds like a good setup that is dependable too.
Paul
As far as getting more power out of an 80 inch EVO, going with a "bigger" cam will likely kill your bottom end performance in an effort to get more . The EV27 closes the intake valves at 36 degrees with 235 duration, which helps with the low end but will also pull through about 5800 rpm. So what you have now sounds like a good setup that is dependable too.
Paul
Thread Starter
|
6th Gear
Joined: May 2021
Posts: 14
Likes: 3
From: Kokomo Indiana
actually upon rebuild we did a stator upgrade, 32amp now, plus regulator and she definitely charges. But yes even though I have a decent battery, I do need an anti gravity one, as I'm sure the vibration takes its toll on mine
Road Warrior
Joined: Dec 2007
Posts: 1,286
Likes: 64
From: SoCal
I have been very favorably impressed with the Anti Gravity batteries. I've installed them in five bikes so far.
If you have not held one yet you will be surprised at how little they weigh.
The oldest one must be four or five years old now. The bike is presently not running but in a month or so I should find out if the battery is still good.
The owner said he kept it on the charger when not in use. The bike sat around a lot. I am curious to see if it's still good.
If you have not held one yet you will be surprised at how little they weigh.
The oldest one must be four or five years old now. The bike is presently not running but in a month or so I should find out if the battery is still good.
The owner said he kept it on the charger when not in use. The bike sat around a lot. I am curious to see if it's still good.
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
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,007
Likes: 7,541
From: Poolville
My 76 shovel had a Hitachi starter and yes they crank slow so what I did was I bought a Hi Torque Prestolite and Drilled and tapped the starter housing to accept the 1/4-20 starter bolts and the motor spun a lot faster.. Just so you know the starter in your 88 was used since 73 so you shouldn't have any issues doing the swap. Ebay has them pretty cheap. No need to go through the expense of an inner and outer primary..
Thread Starter
|
6th Gear
Joined: May 2021
Posts: 14
Likes: 3
From: Kokomo Indiana
My 76 shovel had a Hitachi starter and yes they crank slow so what I did was I bought a Hi Torque Prestolite and Drilled and tapped the starter housing to accept the 1/4-20 starter bolts and the motor spun a lot faster.. Just so you know the starter in your 88 was used since 73 so you shouldn't have any issues doing the swap. Ebay has them pretty cheap. No need to go through the expense of an inner and outer primary..