MSD ignition Q@A

[Schoust]

I am thinking about using a MSD 6a,the only problem I have is the car is a stick and I realy need a rev. limitor.Can a soft touch be added to this module???

[Schoust]

I am thinking about using a MSD 6a,the only problem I have is the car is a stick and I realy need a rev. limitor.Can a soft touch be added to this module???

[Jim Zeek]

A 6al box already has a built in rev limiter that can be used with MSD RPM chips.

[Schoust]

Yes I'm aware of that but I have a 6a box that I got cheap and I was wondering if I could use a rev limitor with it somehow???

[Polar-Pontiac]

A Jacob rev-control works great use one for years. Good Luck.

[Schoust]

I guess I should have been a little clearer with the question,what I want to know is can a msd 6a cd ignition be piggybacked to a rev limitor,I dont care what brand it is I just need to have one.........

[Brian Baker]

I'm pretty certain their "soft touch" rev limiter can be wired to the 6A, but how I am unsure. Why not check with their tech line? A web search will produce a website with a phone number.

[68GTOConv]

To the best of my knowledge, an MSD 6a will accept no rev limiter, MSD or otherwise. It doesn't have any external spot to wire one in, even by splicing wires.

You could call MSD tech support to check. In the MSD line, they sell two types of soft touch rev controls.

One is PN 8728, and it works with factory ignitions, both points and HEI. It would also work with the MSD 5 box since that box is also designed for factory set-ups.

The second is PN 8738 which works with the 6T, 6TN, and 6-HVC boxes.

The last MSD catalog I had (2004) said in big letters that the 6a will NOT accept any form of rev limiter, regardless of brand.

Unless the numbers have changed (unlikely!), you can reach MSD at 915-855-7123 or via e-mail to msdtech@msdignition.com

Mike M

[SCOTT ESTERLE]

Soft touch will not work with the 6A box. What you need to do is send the 6A box back to MSD & pay $35.00 & they will upgrade the box to a 6T & then you can add a soft touch box to your ign.

[Schoust]

Thanks guys I was afraid that was the case.Does anyone have a msd6al or any other brand that has rev limiting capabilities they want to move???

[Polar-Pontiac]

Like I said a Jacobs will piggy -back on a 6a msd box with no problem .

[Schoust]

Polar how do you wire it in??It does say in the instructions that the 6a can't be used with any rev.limitor??If you dont mind I would like to know how its done..

[Polar-Pontiac]

Jacobs-Dual Revsafe #384806 has 4 wires red,green,red& white, Black. Red is your 12 volts Green goes to the white msd wire ,The red& white is for your trans-brake if you don't have one just tape it up. Black is ground.The instruction come with the unit I have also used this with a 7a box works great and you don't need chips just set to your rpm . Good luck

[Schoust]

Polar,I checked Jacobs and that part number was no good??

[Polar-Pontiac]

Then I would give them a call thats the part number on mine 1-800-825-3345 I purchase this about 7-8 yrs ago .

[Polar-Pontiac]

picture-

[GTO]

I have also used a Jacobs product with a rev limiter and the 6A box. It also worked for me (Jacobs Nitrous Mastermind) I did have to get wiring instructions through their tech line though.

[Schoust]

I went to Jacobs Web sight and found that they were bought out by Mister Gasket,and I could find no info. on any rev. limiter.Does anyone Know where I can get that Rev. Limiter?? Poler how about a wiring diagram If you don't mind...

[Polar-Pontiac]

File to big

[Polar-Pontiac]

Try again

[Schoust]

Thanks a lot Polar,Did you get my Pm??