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08-13-2009, 12:09 AM
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#1 (permalink)
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Lifetime Premium
Join Date: Mar 2008
Location: Northern Ontario Canada
Posts: 538
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performance ignitions and the results
Hopefully this is in the right place.
Ok I've got to ask about programable and preset non stock ignition systems. I've been reading quite a bit on these ignitions and not so much of how or if one system is better than another but I think more about what you can actually achieve installing one of these ignitions in the average Joe's bike that has a descent motor and for now I will ask more of the ignitions that have been installed in the EVO bikes, particularly the FLH models. My buddy has an 87 FXR and I've tried his bike, it has the S&S ignition and hq-24 cam and other than that its stock motor with 30,000 miles. I found it takes off like a jack rabbit after it gets past the semi dead spot of the throttle. Now question is if these are from what I've pulled from info more REV limit adjuster systems how would they work for an average Joe like me for an 89 FLH if I ride the bike like a dresser and not like my 02 Dyna basicly not pushing the rev's high? Like is there an advantage that you've found if you've installed one of these ignitions on an EVO ( note EVO and not TC ) bike ? Haveyou's found this ignition adds to torque at all?
On my dresser I go through the gears not really even shifting higher than 3-4000 rpm because motor sounds like its screaming at me, other than that I may drop agear on the hiway to pass, that is if I'm going slow enough not to have the motor screaming.
thanks
__________________
2002 FXDWG
1989 FLHTP
Lynn
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08-13-2009, 03:45 AM
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#2 (permalink)
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Seasoned Rider
Join Date: Oct 2007
Location: Sydney Australia
Posts: 95
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Quote:
Originally Posted by wanna ride
Hopefully this is in the right place.
Ok I've got to ask about programable and preset non stock ignition systems. I've been reading quite a bit on these ignitions and not so much of how or if one system is better than another but I think more about what you can actually achieve installing one of these ignitions in the average Joe's bike that has a descent motor and for now I will ask more of the ignitions that have been installed in the EVO bikes, particularly the FLH models. My buddy has an 87 FXR and I've tried his bike, it has the S&S ignition and hq-24 cam and other than that its stock motor with 30,000 miles. I found it takes off like a jack rabbit after it gets past the semi dead spot of the throttle. Now question is if these are from what I've pulled from info more REV limit adjuster systems how would they work for an average Joe like me for an 89 FLH if I ride the bike like a dresser and not like my 02 Dyna basicly not pushing the rev's high? Like is there an advantage that you've found if you've installed one of these ignitions on an EVO ( note EVO and not TC ) bike ? Haveyou's found this ignition adds to torque at all?
On my dresser I go through the gears not really even shifting higher than 3-4000 rpm because motor sounds like its screaming at me, other than that I may drop agear on the hiway to pass, that is if I'm going slow enough not to have the motor screaming.
thanks
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Hi Wanna Ride,
I have a fully programmable single fire ignition in my '86 FXR, and I have to say, yes it runs nice, but added not a skerrick of extra power or torque to the engine. If you do a bit more research, you will find that there is not an ounce of evidence that the ignition module (either single fire or dual fire) makes any difference whatsover to the power or torque of an engine over a stock dual fire system, this has been proven on Dyno's many times. A lot of people will tell you, that they changed out their ignition for a performance one and the bike now runs better and is a bit faster etc, but this is usually due to the fact that they change it because the old one craps itself, and most electronic ignitions dont just suddenly go without having deteriorated slowly over a long period, and the rider gets used to it as it gets progressively worse and worse . Then suddenly a brand new ignition goes in and BINGO!!! the bike suddenly starts running as it should again, and this is mistakenly interpreted as the ignition being more powerful than a stock one, where in reality, you would probably have just as big a difference putting in a brand new stock ignition. I hope this makes sense to you. But I am not saying dont buy one, as they are better in the sense that you have the choice of changing rev limits and stuff, so they are superior in some senses, just not in the power or torque areas (the manufacturers will tell you different, but can show no independent evidence to back up their claims, if they have evidence, you can bet it is by someone commissioned by them, and not independent). Hope this helps.
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BIGBOPPA
MICAH 6:6-8
 
PLEASE,DO NOT MAKE ME HAVE TO USE MY UNDERTAKERS VOICE!!!
1986 FXRS
80" EVO
Andrews EV27 Cam
Supertrapp 2:1
Mikuni HSR42 Carb.
Ultima Fully Programmable Single Fire Ignition
Wide Glide Conversion
Fork Brace
Progressive Front Springs
Sports Front Fender
Koni Rear Shocks
Homemade Custom Seat
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08-13-2009, 06:55 AM
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#3 (permalink)
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Iron Will
Join Date: Dec 2003
Location: Munnsville NY
Posts: 4,361
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............and in certain cases, the OEM unit can make MORE, coming up through.
When an adjustable ignition comes into play, is when your building more cylinder pressure, and need to control the rate of full advance, as well as the overall timing. Most also have an adjustable rev limit, and some even have multiple-spark capabilities.
But as already said, abritrarily installing a hot-rod ignition, will not do a damn thing. 
Scott
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"If a street Harley doesn't have torque, how much horsepower it makes, simply does not matter."
"Treat your dogs with respect, keep your traps oiled and checked, and Beechnut is the tabacco to chew." The Renn, date unknown.
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08-13-2009, 09:52 AM
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#4 (permalink)
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02 RK,S&S 124" Evo
Join Date: Mar 2007
Location: Windham,Maine
Posts: 1,287
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Quote:
Originally Posted by Hillside
............and in certain cases, the OEM unit can make MORE, coming up through.
When an adjustable ignition comes into play, is when your building more cylinder pressure, and need to control the rate of full advance, as well as the overall timing. Most also have an adjustable rev limit, and some even have multiple-spark capabilities.
But as already said, abritrarily installing a hot-rod ignition, will not do a damn thing. 
Scott
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Some of us went the dual plug per cylinder route.It looked cool.
__________________
06 RK,155" R&R TwinCam
02 RK,124" S&S Evo
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08-13-2009, 01:39 PM
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#5 (permalink)
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IronButt
Join Date: Mar 2004
Location: Michigan
Posts: 3,093
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Quote:
Originally Posted by dog155
Some of us went the dual plug per cylinder route.It looked cool.
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LOL. The old "if one is good, two is better" line of thinking. 
__________________
FXDRYDR
2003 FXD
98" Small Bore
107HP/113TQ
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08-13-2009, 02:13 PM
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#6 (permalink)
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IronButt
Join Date: Nov 2008
Location: Saint Peters, Missouri
Posts: 275
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"But as already said, abritrarily installing a hot-rod ignition, will not do a damn thing.
Scott"
Here's what Nightrider has to say about the topic.......
http://www.nightrider.com/biketech/h...ionmodules.htm
__________________

______________________
80" EVO, .020 over, 9.7:1
Keith Black Pistons
Ness Big Sucker
CV w/ DynoJet Kit
Screamin' Eagle Ignition
Screamin' Eagle Heads
V-Thunder 3030 Cam
Sifton Lifters
Crane Adjustable Pushrods
Carlini Torque Arm
Custom Porker Pipes
_______________________
Last edited by 93 FXR : 08-13-2009 at 09:24 PM.
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08-13-2009, 11:38 PM
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#7 (permalink)
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Premium Member
Join Date: May 2009
Location: Baltimore, MD.
Posts: 103
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I must be the minority or something because I replaced mine (with an adjustable ignition curve Screamin Eagle unit with 4 preset curves) solely due to getting it for a very good price, and also to raise the factory rev limiter since 5200 seemed too darn low...the bike ran very well before, even though stock "P" module seemed to be rev limiting as soon as it seemed to really want to pull (in the upper rpm's)
Using the most aggressive timing curve, my bike is noticeably crisper on the throttle response, definitely revs quicker, and seems to love taking advantage of the few hundred added rpm capability, so to read that it does "nothing", yet experiencing quite the exact opposite, I'd have to wholeheartedly disagree 100%...So far it's easily been my best mod.
__________________
1997 Softail Custom (FXSTC)
SE hi-flow a/c, ThunderHeader, SE adjustable curve ignition module
RevTech Scorpion wheels & pulley, custom paint, floorboards
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08-14-2009, 06:06 AM
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#8 (permalink)
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Seasoned Rider
Join Date: Jun 2004
Location: SE Washington
Posts: 31
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An as likely culprit to rel3rd's improved performance would be the paint job. It looks fast.
I did the single fire conversion years ago. Worst money spent on my '96 Fatboy. It does, however, rev to 6k now. Problem is, I never get there.
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08-14-2009, 01:49 PM
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#9 (permalink)
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Premium Member
Join Date: Aug 2008
Location: Iowa
Posts: 163
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The key is getting the right curve for your engine configuration. Adjustable modules help you acheive that. That said, an adjustable module set to the same curve as a non-adjustable module will yeild the same results. Most people find the factory curve conservative and not optimal for their setup, which is why many replace it with an adjustable one and go to a more agressive curve, which is why most see more power.
As far as dual fire vs single fire or multi-spark goes, if you get a good burn on the first spark, there is nothing left to burn for any additional sparks.
I am sure coil saturation may be better in single fire, but I doubt many of us ride at an rpm or compression high enough to see that benefit.
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08-14-2009, 02:40 PM
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#10 (permalink)
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DILLIGAF
Join Date: Sep 2003
Location: Straight jacket memories and seditive highs
Posts: 10,192
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I carry my stock with me. I had a problem couple years ago. Would start with stock but would not with aftermarket. I don't know if a sensor was going bad, and it was sensitve to that, or my battery had low voltage or what. Replace 2 sensors and battery and it went away. They 46k miles, and were about $43/sensor, so I felt like good thing to do. Battery was 6 years old too. Its in my lawn tractor now.
__________________
Lets not turn on each other, unless we have to.
The Devil made me do it the first time, the second time I did it on my own-Waylon
Helmets are like rubbers you know you should wear one, but its so much better when you don't.-Me
Sometimes I think its a sin, when I feel like I am winning when I am losing again.-GL
2001 FLHR, RP 98", ported heads, 9.7, .03 HG, 37G, SE AC, CV44, DTT, LMR2,rusted and welded V&H classics(I know I should get 2-1)
2007 FLHTCU SERT, SE AC & burning Fat Cat
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08-14-2009, 03:00 PM
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#11 (permalink)
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Premium Member
Join Date: May 2009
Location: Baltimore, MD.
Posts: 103
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Quote:
Originally Posted by hoglar
An as likely culprit to rel3rd's improved performance would be the paint job. It looks fast.
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Oh crap...I thought for sure it was my new floorboards cutting through the wind.  lol
Quote:
Originally Posted by rcsoftail
The key is getting the right curve for your engine configuration. Adjustable modules help you acheive that. That said, an adjustable module set to the same curve as a non-adjustable module will yeild the same results. Most people find the factory curve conservative and not optimal for their setup, which is why many replace it with an adjustable one and go to a more agressive curve, which is why most see more power.
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That was my point exactly. Some make a general statement that it's a waste of money, especially on a stock engine with slip-ons and an air cleaner, but I bought the module and an (unused, so far on my bike) single fire coil for $100. Before I got this one, I'd be hesitant to spend 300 bucks or whatever for a new one, but after knowing how well it worked in my particular case, if I would have bought it new, I'd still be happy. 
__________________
1997 Softail Custom (FXSTC)
SE hi-flow a/c, ThunderHeader, SE adjustable curve ignition module
RevTech Scorpion wheels & pulley, custom paint, floorboards
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