Recommendations for EVO Upgrades
Thread Starter
|
1st Gear
Joined: Mar 2026
Posts: 5
Likes: 5
From: Alabama
I very much appreciate all the info from you guys. I know theres a ton of knowledge in this forum and I have a lot to learn, but definitely looking forward to the process.
As for the ignition systems out there. Ive been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are better than others in terms of setup and adjusting for newbies such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
As for the ignition systems out there. Ive been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are better than others in terms of setup and adjusting for newbies such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
Thread Starter
|
1st Gear
Joined: Mar 2026
Posts: 5
Likes: 5
From: Alabama
I very much appreciate all the info from you guys. I know theres a ton of knowledge in this forum and I have a lot to learn, but definitely looking forward to the process.
As for the ignition systems out there. Ive been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are better than others in terms of setup and adjusting for newbies such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
As for the ignition systems out there. Ive been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are better than others in terms of setup and adjusting for newbies such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
Grand HDF Member
Joined: Sep 2022
Posts: 4,418
Likes: 3,823
From: Florida
I very much appreciate all the info from you guys. I know there’s a ton of knowledge in this forum and I have a lot to learn, but definitely looking forward to the process.
As for the ignition systems out there. I’ve been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are “better” than others in terms of setup and adjusting for “newbies” such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
As for the ignition systems out there. I’ve been trying to read up on the differences between single fire versus dual. And also trying to understand initial setup/adjustments and timing. Are there systems that are “better” than others in terms of setup and adjusting for “newbies” such as myself? Or is it one of those things that you just stick with recommended install procedures and fine tune from there?
Last edited by Rains2much; Mar 17, 2026 at 08:55 PM.
Thread Starter
|
1st Gear
Joined: Mar 2026
Posts: 5
Likes: 5
From: Alabama
I like several. The 2000i is nice and simple. You can pick the curve you like by the description and its close. Use the Voes on an engine like that too. It will help. I will share dual fire sounds better to my ear, single fire runs better. With a 80 incher, under 11:1 and bolt in cam, Id start at like 30 degrees timing and move up to 32 and see what I got, you might end up even 34. My buddies Dyna with stock pistons and an EV27 liked close to 32 degrees. I say close because I only static timed it. But I didnt run Voes.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,092
Likes: 7,615
From: Poolville
I like using the Dynatek 2000P ignition module.. It installs in the original location and utilizes original wiring.. Also keeps the ignition module out of the nose cone and heat.. it's programmable and has 4 selectable ignition curves and dual or single fire.. Believe it or not I still run dual fire on my built 97" Evo.. If you need a new pickup in the nose cone, Standard Motor Products makes one i always use.. You're not going to beat $199 for a 2000P, here's a link to one on eBay https://ebay.us/m/ZMsVXE
and a STANDARD MOTOR PRODUCTS pick up here, MC-SPA3
https://a.co/d/0evwGiX8
you can use your original coil if you want or you can get a single fire it's up to you I don't see any issue with a dual fire coil.
and a STANDARD MOTOR PRODUCTS pick up here, MC-SPA3
https://a.co/d/0evwGiX8
you can use your original coil if you want or you can get a single fire it's up to you I don't see any issue with a dual fire coil.
Last edited by 98hotrodfatboy; Mar 17, 2026 at 10:08 PM.
Road Captain
Joined: Sep 2014
Posts: 516
Likes: 109
From: Utopia
and just fyi it's not obvious where the Evo forum is: https://www.hdforums.com/forum/evo-84/
Last edited by bustergut; Mar 18, 2026 at 04:23 AM.
Grand HDF Member
Joined: Sep 2022
Posts: 4,418
Likes: 3,823
From: Florida
The dual vs single fire is a topic I dont think Ive ever seen a thread discuss. It would be interesting to hear opinions
even better see some kinda measurable results. I especially miss the sound of Dual fire with Shovelheads
too me it glorifies the Po-Ta-Toe sound just a tad more lol.
My personal reasoning is coil saturation under a load.. Im trying VERY HARD to not let my advice go full race track at every comment lol but its where Ive spent a lot of time doing comparisons because I wanted proof that being said maybe it doesnt matter. My reasoning was when I did lots and lots of passes comparing coils my proof was in what coil would not cut out above 6000rpm under a full throttle load. I would test 2-3 coils of even the same brand and model number. Believe it or not there is always a clear winner. Out of 3-4 one will always consistently shine. Then Id return the others. I use to like the over counter Harley late model softail coils best (1990s) with a Dyna S ignition (still one of the very best ignitions) these days Im buying 3-4 Drag specialties high output single coils and then returning what I deem as inferior. When I compared dual vs single I felt the dual coil itself got hotter and performed less well above 6K after a long day. I felt plug faul increased when using dual. But that was many years ago. And things change. I also dont remember how many duals I used to compare. In truth Im pretty sure it was only a few. I dont remember if I revisited it either.
My personal reasoning is coil saturation under a load.. Im trying VERY HARD to not let my advice go full race track at every comment lol but its where Ive spent a lot of time doing comparisons because I wanted proof that being said maybe it doesnt matter. My reasoning was when I did lots and lots of passes comparing coils my proof was in what coil would not cut out above 6000rpm under a full throttle load. I would test 2-3 coils of even the same brand and model number. Believe it or not there is always a clear winner. Out of 3-4 one will always consistently shine. Then Id return the others. I use to like the over counter Harley late model softail coils best (1990s) with a Dyna S ignition (still one of the very best ignitions) these days Im buying 3-4 Drag specialties high output single coils and then returning what I deem as inferior. When I compared dual vs single I felt the dual coil itself got hotter and performed less well above 6K after a long day. I felt plug faul increased when using dual. But that was many years ago. And things change. I also dont remember how many duals I used to compare. In truth Im pretty sure it was only a few. I dont remember if I revisited it either.
Last edited by Rains2much; Mar 18, 2026 at 06:08 AM.
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Joined: Oct 2019
Posts: 10,796
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From: OH
Returns on "used" electrical parts ?
Last edited by eighteight; Mar 18, 2026 at 06:15 AM.
Grand HDF Member
Joined: Nov 2012
Posts: 4,994
Likes: 2,081
From: Newport,TN area
I don't have anything to add other than some high-dollar "bling".... 
https://www.speedandscience.com/prod...olution-heads/
T.
https://www.speedandscience.com/prod...olution-heads/
T.