travailrx7

Can you run a MSD ignition box on a stock opti and will the MSD ignition box's fry the stock opit.

Vicious95Z28

iTrader: (1)

That's what I hear. It seems that the stock opti cap/rotor tend to frown upon the MSD OUTPUT.

travailrx7

I have a MSD cap and rotor and a MSD coil on the car.

imnotplutonium

iTrader: (4)

i have a full msd system on my car, minus the opti that is stock. BUT, it is not the original. the msd system destroyed my original opti and I had to get it replaced. I can't prove it was the msd but very shortly after the install it crapped out.

i had a friend of my dad's work on it and he tried blaming the msd system and replaced all of it with stock ignition parts and it ran worse. turns out it was the opti like I told him in the first place.

long story short on a low mileage opti i would not worry

Ray@Nitrous Outlet

My 94 still has the OEM/STOCK opti on the car, and has been running a MSD Digital 6 and a big MSD coil for over 6 years.

I have had absolutley zero opti related issues, maybe mine is a freak.

grn95t/a

iTrader: (10)

ran my stock opti on a 6al for a few thousand miles before i did the cam install and changed to the msd cap and rotor. the stock pieces looked good when i pulled them other than only one plastic rivet left and loose. lol!

LT1capriceclassic

I just put a 6al in my 94 caprice w/ the stock opti and it took the opti out in about 600 miles. But the car does have 136k so still not sure if the msd just did it in or just having that many miles did.

Geneticallybroke

iTrader: (3)

I installed the 6al box on my T/A with 1yr old opti and it only lasted two weeks. Maybe it was a defective opti???

96capricemgr

iTrader: (1)

You know when folks ask a question like this I think the first response should be someone asking you why you want to put a box on the car atall???

The stock ignition really doesn't need any help until the car is pretty substantially modded. There are features that can come in handy when doing certain mods but if you are thinking of "improving the spark for efficiency" or the like then you are wrong and about to waste money.

1redta

This is true, but I did to my car because; the MSD 6/digital 6 are relatively cheap, I learned some things about the ignition system of my car ( replaced wires plugs) and I enjoy modding my car Art

travailrx7

The motor has been modd with a 306 com cam.1.6rocker.58mmTB,intake.headers,push rods.cc value springs.full MSD set up,ported stock heads,3in MAS,LT4 SCM.so my motor is not stock.This is why I ask if I can run a ignition box on a stock opit.

ineedanls1

i have a 6al and stock opti but installed them both at the same time...working fine been about 13k...its just one of those things knock and wood and go for it...

95hawk467

iTrader: (3)

I have a gm replacement opti and Msd dif6 box and blaster coil with no ill effects.

95zpro

haven't had a problem with my setup; msd 6al, blaster coil & msd wires and I haven't had a problem !

ineedanls1

i think i heard somewhere that the blaster coil ***** up the opti i just have the 6al no problems..

Z-RATED94

iTrader: (6)

Same here, 6A box and upgraded coil for years. I switched to the 685 box only because I added nitrous and needed more features. MSD 6A is for sale if your interested.

BizZzatch350

iTrader: (33)

Have yet to see any concrete evidence that an ignition box destroys the opti.

speed_demon24

iTrader: (6)

Every stock cap that I have personally seen showed signs of arcing when it was run with an ignition box. I don't know if it would have still showed the signs of arcing without an ignition box but I thought i'de just throw that out there.

imnotplutonium

iTrader: (4)

yea stock ignition is fine but I was young and it was affordable. it will help later on with a FI setup..... a lot later on. lol