Ignition Question

[DRP78]

Hello, I have been lurking on this website for awhile now, very helpful by the way. Now for the Question, I have a 99 fatboy 9:5 to 1 wiseco pistions .020 over, S&S lifters, roller rockers, Andrews ez pushrods, Mild port job on stock heads, 42mil mikuni carb, Ness big sucker and a thunderheader. Now that you guys Know what you are dealing with, I was wondering if an ignition upgrade would be noticable, and if so what kind does everyone like. I have been researching Screamin eagle ignition module # 32630-96 but this is no longer avail. I was wondering if I could use part# 32595-96 on my bike. Thanks

[rcsoftail]

You will notice a diffrence when you find the right curve to match your setup. I would go with something like a daytona twintec 1007. It will fit under your seat and plug in just like your factory module. You can run it single or dual fire. If you want to save money, quick plug-in type install and also use your old module as a spare, just hook it up as dual fire. The performance difference between dual and single fire isn't that great, so save the money unless you are a perfectionist. The advantage of these types of modules over the screamin eagle is that you have 10 preset curves to choose from, which should be enough to find an optimal curve for your setup. You can also select multi-spark, which isn't really necessary if you are getting a good burn on the first spark.

I have run spike, compu-fire, crane, SE and daytona twin-tec ignitions. They are all good ignitions. However, I have always preferred the crane and the twin-tec. Crane is now out of business, so that leaves twin-tec as my first choice.

http://www.daytona-twintec.com/model_1006.html

[DRP78]

Thanks for the info, but I just bought a programmable SE from a local bike shop. I hope I like it when I get it installed.

[rcsoftail]

I didn't know SE made an adjustable one for an evo. What's the model number?

[Hillside]

Steer clear of the Comp ignitions as they are garbage. Period.
Tie a Dyna 2000i to your existing coil, and tune it. You'll be glad you did.
Scott

[DRP78]

my mistake selectable not programmable Part # 32654-98

[rcsoftail]

Originally Posted by DRP78

my mistake selectable not programmable Part # 32654-98

Must be an older module since it is not listed in the current SE book. Found a little bit of info on it. If accurate, looks like it has 4 different curves like the dyna 2000. Someone thought it was made by dyna. Should work fine for you. Just plug it in, find a curve you like and go. Haven't used a dyna for over 10 years, but they were a good ignition back then.

[rel3rd]

Originally Posted by rcsoftail

Must be an older module since it is not listed in the current SE book. Found a little bit of info on it. If accurate, looks like it has 4 different curves like the dyna 2000. Someone thought it was made by dyna. Should work fine for you. Just plug it in, find a curve you like and go. Haven't used a dyna for over 10 years, but they were a good ignition back then.

I just recently bought that same model number ignition module, from a guy on this forum, for my 97 FXSTC. Since I run 93 octane anyway, I went right to the most aggressive curve (setting 1) and I'm very happy with it.

So far, (considering I got it used for $100 with a single fire coil and adapter harness), it's been the easiest, most cost effective mod I have done to this bike. It starts instantly, runs noticeably better overall, and is much snappier as far as throttle response. Retail seems to be anywhere from like $220 to $275 and I can't say I'd be upset at all if I bought mine new...

Since there's no definitive answer or even a general consensus as far as single fire/dual fire setups, I decided to try it as a dual fire and can't believe that it'd run any better than it now does, by converting it to single fire...although I have the parts to do so.

[DRP78]

Well I just installed mine tonight. I also put a SE coil and plugwires on it. I am trying curve 2 to start with. I set the static timing with their procedure and it fired right up. I am going on a test ride tomorrow, so I hope it performs well.

[dochawken]

Originally Posted by Hillside

Steer clear of the Comp ignitions as they are garbage. Period.
Tie a Dyna 2000i to your existing coil, and tune it. You'll be glad you did.
Scott

Have used Comp as a replacement for my Crane..find it far superior on my 10.5 SE Fatboy. Don`t understand your comment.

[Hillside]

We sold Ultra Cycles years ago. Some came thru with Comp ignitions. Mucho problems with the units.
One example, was when were tuning one day with a known combination on those 113".
The engine was running fine, but had to keep poking a ton of fuel to it, and the timing changes did not add up.
After a TREMENDOUS amount of dyno time,(rolled into the next day!!) decided to go back to our dedicated jetting, and installed a Crane unit(now defunct).
Bingo!!!!!!!!!
The in-house combo marked the number we knew that the combination was supposed to.
Prior to that, clients complained of odd starting, and general power losses on those. All headaches created via those Comp units.
When we experience problems of that level, and have multiple fires to put out on a daily basis, we fix those problems by eliminating the potential for them to never occur again. Won't install a Comp ignition on a clients bike if it was free.
Want to hear about their starters???
That story is even longer.
Scott