Also curious. Have a '93 and have been considering the same, although the price tag is a bit scary!
From what I've read in MANY mags, the stock ones are faulty in many ways -- unless you upgrade to '94-'96.
Might be easier to purchase the MSD, but don't know the real results.
The MSD is a pretty well made piece....I've installed several of them since they came out , ALL with good results....but in my honest opinion, it's really hard (for me personally) to justify the $500 + dollar price tag for it since I've "never" had a single issue with a properly sealed and installed AC Delco factory replacement Opti-spark unit(at well under half the cost of the MSD if ya know where to look).....................Joe:thumbsup:Hey guys Ive got a 93 teal Vett, and i was wondering if any one has switches over to an MSD opti spark?
Yea, the Accel has had ALOT of issues(i've personally seen several with optical issues right after the installation)....IME, it's not even close to being on par with the AC Delco factory opti's.............Joe:thumbsup:I'm still running my O.E.M. Opti, but from what I've read, the MSD unit is far better than the Accell Opti.
Fairly simple to do actually, people do it all the time(I've even done a couple at home myself over the years).......you can either drill(bore) the rear of the LT1/LT4 intake manifold for the regular old style distributor(and clamp), or send it to one of the several companies that can make the necessary changes for you......the LT1/LT4 block is the same as any chevy 350 underneath the manifold "regarding" the distributer hole and oil pump drive(the LT1/LT4 Cam's ALL have the gear on them as well)......a dummy distributor drive assembly is in there now driving the oil pump and it's simply removed and a regular distributor is plugged in it's place, Voila .........but all in all, if people can just keep moisture from getting in their opti's(IE: sealant everywhere, and attaching a nipple and a drain tube on the waterpumps bottom weep hole so that coolant cant run out on (or into) the optispark unit) 90% of them last 80 thousand miles or longer........Joe:thumbsup:Wish there was a way to just go back to a good old HEI distributor... They never gave problems. Ahhhhh progress...:crazy:
I do like the little drain tube idea. Easy to check too while changing oil. I take a flashlight and give the water pump a good going over regularly.
not about optis but i worked at a shop for a few years as the oscilliscope guy, id get guys all the time saying i put this accel (part here) and now the car runs like crap, what did i do wrong?? scope the car and almost always the accel crap was bad!!! replace with stock parts and the car would run fine. i shitcanned a ton of that crap. i dont know how they stay in business. i wouldnt touch an accel part with a ten foot pole!!! just my experience, your results may vary.Yea, the Accel has had ALOT of issues(i've personally seen several with optical issues right after the installation)....IME, it's not even close to being on par with the AC Delco factory opti's.............Joe:thumbsup: