Cannonball

It's that time again... seems like 70,000 miles was just 5 years ago. It's been a while since I had to do this and was wondering if a GM unit was still the way to go(so expensive). I have a 1993 model. Has anyone had any experience with Summit Racing PN SUM-850059 ? (its cheap.) I'm going more for a daily driver than a race car, but what about the MSD units? I've heard varying reviews about them. Any one have any suggestions?

93 LT1 Vette

1. GM or Delphi
2. MSD

Nothing positive for
Accel
Cardone
E-bay junk

Chandler Motorsports has some positive feedback on the net.

devildog214

gm or delphi

Ed Wright

iTrader: (1)

What happened to it? They go way over 100,000 miles all the time.

Pfunk

I am putting in my MSD today I had gm was good and tried Accel junk

Ed Wright

iTrader: (1)

I hope MSD has addressed their issues by now. Have not been exactly trouble free for many of my customers.

F0x Slaughter

Not MSD.

AC Delco.

Not Chandler Motorsports.

Ed Wright

iTrader: (1)

Can't find the Like button. :-)

sweetbmxrider

iTrader: (13)

Where are you finding an ac delco opti? Its delphi units now and they are pretty shitty.

MSD's are pretty damn good now a days. The older ones were trash, no doubt.

96capricemgr

iTrader: (1)

MSD cap and rotor kit on existing base.
treat it like a tuneup on older engines, just a cap and rotor.

I wouldn't put the MSD base on if I got it free.

F0x Slaughter

https://www.rockauto.com/catalog/mor...361&cc=1035908

433 bucks.

http://www.summitracing.com/parts/ac...FdGd4Aod6lIA-g

445 bucks.

http://www.sears.com/shc/s/p_10153_1...0125xMPALLx028

480 bucks from Sears? O.o ROFL.

By the way that was really hard. Typed in Google AC Delco Optispark.

I bought my car with a MSD changed like 8k before I got it, test drove it 3 times. Bought the car, 2nd day home the Optispark took a crap. Tried a Chandler Motorsports, didn't work. Put in a Ac Delco been fine for years now.

I should find Chandler and throw the Optispark through his window.

davidc212k

iTrader: (3)

a few months ago there was a deal for GM optisparks. got my 95 one for $200.
i had bought a chander opti and only worked for 2 days. before that i had a delphi one and no start. now i installed the GM.

i say GM or AC Delco or nothing

BTC

Delphi should be the same thing as an AC Delco.

ABA383

iTrader: (1)

This is the set up I ran for years. Zero issues. New owner put a complete MSD opti unit it at end of last year. We'll see how it runs this year. I think he made a mistake.

--Alan

jrwilliams95z28

I have MSD pro billet installed... LOVE IT!

Ed Wright

iTrader: (1)

Maybe you got a good one. I hope so.

BTC

Does MSD use the Mitsubishi optical sensor?

Pfunk

My car runs great with the MSD in ran it last night and today

Rob94hawk

iTrader: (1)

If you're stock AC Delco/Delphi.

If you're modded and spinning anywhere near 7000 rpm MSD.

nascarnate326

iTrader: (1)

had great luck with my chandler.

I now have a GM opti and the chandler is my backup.