Can the SE Sportster Street Ignition Module
I was talking to a guy at work who said that this module could actually hurt my engine. Is this true ?
Sure you can break stuff revving up to 7000. But that's a function of the RPM's and not the module. The module is only facilitating the RPM's.
My answer is no - the module cannot directly cause damage to your engine on its own.
Yeah thats why I included it ... actually the ignition module and the SE coil (which I forgot to order) was on the parts list. I believe I got the list off of the xlforum. Ill double check.
But why the hell would I be running at 7k rpms anyway. Im an old guy who doesnt race around town and have never had the bike over 80mph ... plenty more throttle .. I may occasionally stay in the low end gears a bit longer then I should based on road condition or traffic, but I doubt that I let it rev to 7k rpms. ... I dont have a tach to tell exactly ..... but again ... 7k is awfully high ...
Yeah thats why I included it ... actually the ignition module and the SE coil (which I forgot to order) was on the parts list. I believe I got the list off of the xlforum. Ill double check.
But why the hell would I be running at 7k rpms anyway. Im an old guy who doesnt race around town and have never had the bike over 80mph ... plenty more throttle .. I may occasionally stay in the low end gears a bit longer then I should based on road condition or traffic, but I doubt that I let it rev to 7k rpms. ... I dont have a tach to tell exactly ..... but again ... 7k is awfully high ...
Even the SE "E" cams I am running the peak horsepower curve is falling (not rising or even staying the same) in the 6,300 RPM range.
Doesn't do a bit of good to run the engine at a higher RPM range unless it's just for bragging rights.
If you want to run at a high RPM range and actually see some benefits you need to modify your engine and install cams/etc that are actually making power at high RPM's.

Stage 0: Stock
HP=40 for 883, 50 for 1200 (average) [hr] Stage .5 (also known as "The Harley Tax"): Stock plus:
SE Air Cleaner(1)
SE Slip-On Mufflers or equivalent(2)
Rejetting (DynoJet, Yost or just jets)(3)
HP=50 for 883, 60 for factory 1200(4)[hr] Stage 1: Stage.5 plus
883/1200 Conversion for 883s(5,6,7,8)
SE Ignition Module or adjustable one(9)
HP=60 for 883/1200, 65 for factory 1200
Im not the kind of guy that goes for the "bragging rights" thing. The ONLY reason I am doing this is because the stealer cant or dont want to tune out the farting issue. Its an annoyance and at times dangerous.
So if Im reading this right, I shouldnt be replacing the ignition module unless eventually I want to also do the cams; which is not the case. How about the coil ?
Thanks for the help guys ...
He goes the list I got from Sportster.org
Stage 0: Stock
HP=40 for 883, 50 for 1200 (average)
[hr]
Stage .5 (also known as "The Harley Tax"): Stock plus:
SE Air Cleaner(1)
SE Slip-On Mufflers or equivalent(2)
Rejetting (DynoJet, Yost or just jets)(3)
HP=50 for 883, 60 for factory 1200(4)
[hr]
Stage 1: Stage.5 plus
883/1200 Conversion for 883s(5,6,7,8)
SE Ignition Module or adjustable one(9)
HP=60 for 883/1200, 65 for factory 1200
Im not the kind of guy that goes for the "bragging rights" thing. The ONLY reason I am doing this is because the stealer cant or dont want to tune out the farting issue. Its an annoyance and at times dangerous.
So if Im reading this right, I shouldnt be replacing the ignition module unless eventually I want to also do the cams; which is not the case. How about the coil ?
Thanks for the help guys ...
The 2004+ Sportsters, especially the 1200's with the upgraded Buell XB line heads, 1200 Sport cams, and lighter pistons and rods, produce higher horsepower figures than the pre-2004 stock 1200's.
Most "Stage 1" 2004 and newer bike show rear wheel figures of around 70 - 75 horsepower with nothing more than exhaust, intake, and carb work. I've seen some figures that have been higher.
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All that module does is raise the rev limit, it does nothing to the advance curve. Save your money.
[align=left]SCREAMINâ EAGLEÂŽ STREET LEGAL[/align][align=left]IGNITION SYSTEM[/align][align=left]This module is 50-state street legal, and is programmed to[/align][align=left]allow the engine to turn 7000 RPM while maintaining stock[/align][align=left]ignition curves at lower engine speed.[/align][align=left]31784-04A Fits â04-â06 XL883/C models. $119.95[/align]
I agree with Old Fender Guy and sumncguy. I found there is little use for it in a street use configuration. I'm running stock cams and stock ignition and 90% of the time I run out of road or hit max speed for conditions before I get to 5500 RPMs. These bikes are fast enough without it. But the info is here just the same.
Hope it helps.
Cool ... I was able to cancel the order for the ignition module. I also checked on the Jireh order for Cycle Shack slip ons. I received an emailed invoice, but they didnt mention that they were on back order. I checked out Dennis Kirk they where listed at ~168 + shipping and in stock. I gave them a call and made mention of the Jireh price of $120 including shipping and they beat that price by a buck. They should be here by Friday. Now I need to find some one decent to do the carb rejet and dyno tune.
Any suggestions Mid NC ??
Thanks for all the help guys !!!









