Need to Take Some Timing Out

I need to take some timing out at the hit so the car isn't so vilolent. Was thinking a Six Shooter and Electrimotion 8 channel timer(if I can ever get ahold of them). I have read the horror stories on the MSD pn 8973 programable box. Have the problems been solved with the 8973. Any other ideas?

125" altered,3.90 gear,2200lbs,34.5 tire
blown alky BBC,470ci,14-71HH,MSD 20,Coan XST 2 speed,bolt togther converter

 

timingcontrols

Listen to Mike. I don't know anything about the MSD Controller, But the Leahey stuff is just fine for what we do. Just my opinion. You will need to e-mail him about your parts needed. Just remember this stuff is not really cheap. go to leaheys web site to learn more. Good luck Don

 

MSD 8973 works great for us!

The MSD 8973 has worked great for us for over 3 years now, and we run a crank trigger with the shielded/grounded wires and run them away from everything else, and we can run 3.80's with a powerglide and launch really consistant; we use the launch retard funtion only and it works great for us, let us know if we can help in anyway! Jim 931-607-5408 anytime

 

why are guys using the 8973 instead of running a 7531? I know that has worked very well in the little tire car we were running.

 

I didn't know you could use the Digital 7 Plus with a Pro Mag? It has alot more features than a 8973?

 

the 8973 has the timed based timing control that is wonderful and the 7531 does not and that is all most need that are using this on there mag BUT! the 7531 will work and has some wonderful features on its own

 

Mac, stick with the six shooter and The Electrimotion timer!
Ever hear the phrase ....KEEP IT SIMPLE ?
There are some people that will defend the 8973 and have had good luck with it but .... The problems with the 8973 are "not myths"! There are some VERY smart and computer savvy guys out there like Mick Snyder and Will Hana and a bunch more that had the broken parts to prove what happens when their 8973s went haywire!
If your going to gamble do it in a casino where if you loose you don't put a hole in the block and hit the wall!

Another thing to look at is this... If you are sitting in the lanes and all of the sudden you notice the track gets loose, or you notice it got better you can push a few buttons with your EM timer or take your sixshooter chips out of the golf cart and change them in seconds , if you have a 8973 you need to hook it to your laptop and reprogram it

 

Like Mike said, with a couple of toggle sitches, you don't even have to bust the chips out. i use the 7531, it has a slew rate limiter, which i've never used. It has a rpm based timing curve instead of a time based as previously stated, however, i prefer rpm based, because it puts the timing exactly where you want it based on rpm, my converter likes to tug the motor down, so i can throw and extra degree at it about 100 rpm before it happens and keep the curve headed in the right direction, time based might hit a little early or a little late, the 7531 has a metal case and is a little heavier, seems that promods and door cars have less probs with the 8973 than dragsters and fc's

I personally use both the rpm curve and the launch retard ramp. infinitely more tuneable, but more compilcated, once you get your head wrapped around it, you're better off

since your bracket racing, i'd say the six shooter might be a better option, imo
for heads up though you need every little bit

 

I've been using the 8973 for 3 years and I have had no problems with it.

 

If you didn't want to go the "electronic" route, this might work for you and be way less expensive:

http://www.youtube.com/watch?v=s6FH2RzczLg

 

I've seen one similar but on the crank trigger. It was on a record setting AA/Gas car