Hmm, I didn't know this; I guess it is because of how the manual shows the firing order, 1-6-3-5-2-4. I noticed from the distributor cap that there were three sets of 2, and had just assumed that it was 1-6, 3-5, 2-4. I guess a better firing order might have been 6-3-5-2-4-1. Besides having the '1' as the starting cylinder, is there any reason for the firing order as published and not as I have written, assuming that My Wilson is correct? Jim 1537 On Sat, 27 Sep 2003 16:40:01 -0400 (EDT) William T Wilson <fluffy@xxxx> writes: > On Sat, 27 Sep 2003 doctorDHD@xxxx wrote: > > > I know this has been talked about before but I can't find it... > What is > > the difference between Odd and Even fire? > > With odd fire, the cylinders fire in pairs, the two cylinders in the > same > "length-wise" position firing in rapid succession, then a pause, > then two > more, then another pause, then the last two. With even fire, the > cylinders all fire individually and are distributed around the > engine in > an order which minimizes vibration and noise. > > Generally odd-fire engines have more low-end torque, but even-fire > engines > run more smoothly. There's a big difference in the sound and feel, > but > not that much in the performance. > > There are a lot more even fire engines around because most people > value > noise and smoothness over torque, but odd fire engines are still > popular > in places- the Viper uses an odd fire engine (but of course with > five > groups of cylinders instead of three :) ) ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!