Kazoom
29th August 2006, 23:59
Is/has anyone here used any on the MSD products on there Buells?. I have learned that the stock ignition system on my X1's are quite good for stock so I thought of maybe just adding an MSD to it. Anyone got any info on/for these setups?, they got some really neat stuff so I was just wondering what system could/would work best with my stock x1 race ecm.
http://www.msdpowersports.com/2004_m_ignitions.html
cjburr
30th August 2006, 05:12
Always had good luck with MSD in my cars, didn't know they made ignitions for bikes too, thanks.
Kazoom
30th August 2006, 06:46
Me too, I have used MSD stuff on my mustangs for a long time, great products. Not sure but I think the MC-3 might be the one to use on my x1 for the street. The MC-4 looks like it could bake a cake/do your taxes on it's own lol, they seem to have some other nice goodies too.
http://www.msdpowersports.com/images2/4223b.gif
http://www.msdpowersports.com/2004_m_ignitions_4223.html
Kazoom
3rd September 2006, 09:32
Here is another interesting MSD kit made for harleys "PULSE". I really wonder if and how much one of these kits would help for power?.
http://www.msdpowersports.com/2004_vtwin.html
http://www.msdpowersports.com/images_2004/harley_header.jpg
aswracing
3rd September 2006, 13:00
Kazoom, I'm not aware of any aftermarket ignitions that will work with the Buell DDFI injection.
Keep in mind that your ECM controls both spark and fuel. It uses the sensor in your nose cone for the engine position info needed to do both. Pull out your timing cup sometime, you'll see that it's not a standard two-window cup like HD's and carb'ed Buells came with for a long time. It's got numerous slots, one of which is bigger than the others.
The ECM detects that bigger slot to get it's orientation, and uses the other slots to keep track of motor position. The rev limit is built into the ECM as well.
What I'm getting at is this special rotor cup & pickup are understood by the ECM. A standard HD carb ignition is not going to understand the signal from the cup and pickup. And you can't swap them out (unless you convert to a carb) for standard pieces because the ECM needs that info to also control the fuel. So it's not clear to me how you'd do this.
But even if there's a way, unless you've done something to radically raise cylinder pressure, I'd bet you money it wouldn't even show up on the dyno anyway. Typical hot rod street motors are usually a long way from the point where the spark intensity or duration of the stock ignition constrains the motor at all. We run into the need to raise rev limits frequently, but the curves generally overlay otherwise. I've done lots and lots of playing with ignitions and hot coils and wires and plugs on the dyno and on pump gas motors, it's rare to find anything at all with that stuff. Many other things hold back a typical hot rod street motor long before the ignition does.
You have to keep in mind that almost every ignition available for these things uses the same coil primary voltage (12 volts). So the spark intensity is a function of the coil, not the module. There are a couple exceptions to that, Dyna makes a pro drag race ignition that raises primary voltage, and MSD makes a similar unit as well, they use a a combination of capacitve discharge and inductive technologies to increase the intensity and duration of the primary signal. But those are very expensive ignitions for race bikes running very high cylinder pressures (I just put one on one of my race bikes that runs nitro, for example ... it needed it ... the system costs a grand). But like I said, even if you could get one of those onto a street bike, and I don't know how you would with fuel injection, I'd bet it wouldn't even show up on the dyno.
On edit: I just looked at the MSD street ignitions, they raise primary voltages as well. I was aware of their race ignitions, most every race bike uses either theirs or the Dyna 4000, but I wasn't aware they had street versions with high primary voltages. It looks like they're not bolt-on though.
Kazoom
4th September 2006, 07:48
Thanks for the info/input aswracing, I was/am still dreaming if I could do anything to give a boost to my stock system so I thought the MSD stuff might be the add on to get. I guess this factory buell ddfi system is just going to be a pain in the ass to do much else with:(