MSD on a rebuild
 

This is probably a dumbass question but can putting a msd on a fresh rebuild have any negative effects? I am just kinda paranoid over my investment.

It shouldn't, but if your worried just wait until its broken in to wire it up. However it will help with starting (cold and hot) but the only hp gains are up top in the rev range atleast thats the only place i noticed any difference. it may have helped the low end but it's been so long since i've driven my coupe i dont remeber.

No, it won't. It'll provide a minor benefit in helping start when it's a bit flooded (common on rebuilds with low compression). You'll be fine.

Thanks alot.

what the hell does the MSD thing do anyways!

bigger sparks

Actually its a smaller hotter spark that repeats quickly. MSD=multiple spark discharge.

Which Msd system do you have?? I have a Msd 6a system under my bed right now with the 8k rpm rev limiter.

I have a 6a also but no rev limiter i know of. I got it off ebay really cheap and its just the red msd box, part number 6200.

The MSD 6AL was the one with the limiter. Same unit tho other than that.

You guys using the stock coil with the MSD ignitor or do you use the MSD coils too?

who needs a rev limiter on a FC anyways?

Who would want one? And im using the stock coils cause i have been told by many people that msd coils are crap.

stock coils are fine, can use bosch though if you want.

wow, thats the first I've heard about there coils. What specifically is crap about them?

well most people want to push higher RPMs than stock with the rotary but the problem is the ECU cannot process much higher than mid 7Ks on the S4 and spark starts the break up in that range as well. upgrading to standalone and upgrading the coils or adding on MSD boxes is what most people do to cheat the stock management systems.

How much do they go for on ebay?

around $100 last time i checked.

MSd boxes or coils?