The Saab Link Forums - Reply to Topic

Go Back   The Saab Link Forums > Saab NG900 '94-'98 and 9-3 '99-'02 Forum > N/A Performance Modifications for the NG900 / Old 9-3 > MSD install on N/A 900

N/A Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's specific to NATURALLY ASPIRATED NG900 and old 9-3. is the premier Saab Forum on the internet. Registered Users do not see the above ads.
Thread: MSD install on N/A 900 Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces):
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the The Saab Link Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Vehicle Info.
Enter your vehicle information (year, model, mods)
Please select your insurance company (Optional)


Additional Options
Miscellaneous Options

Topic Review (Newest First)
03-10-2008 06:47 AM
GenuineSaab It shouldn't change output any since the stock system is adequate for the cylinder pressures. Now what we need is a few extra degrees, a little more compression and some ethanol..
03-09-2008 08:35 PM
Saab99Super I took the car for a spin tonight and didn't really notice to much, 30 mile trip through the country side at 30 mpg with SID saying 18 deg. F. So about the same but I will know for sure if it ever warms up here.
03-09-2008 08:34 PM
Topher Yup, I bought Meatball's Hi6 ignition box and coil (Crane). I will report back, but I still think the hardest part will be mounting the box...possibly have to relocate the battery?

Excited to try it out on mine!
03-09-2008 08:30 PM
Palmer Outstanding.

Good timing too. Topher just got a setup like this.

I would be interested to see if there is any MPG gains as well.
03-09-2008 08:27 PM
MSD install on N/A 900

This is the first time I have done a how to so here it goes.

I used a MSD-6T but it should be the same for all 6 series boxes.

First locate a MSD box. You can find them cheap at parts swap meets. I picked mine up today at a local circle track racing swap meet for a grand total of $40.

For which one to get it's your preference. The one I really wanted was a MSD-6AL but I couldn't find one that cheap so I went with this 6T.

First off find a place to mount the box. They seem small in your hand but finding a place to mount ut nicely isn't that easy. The only place a found was right by the cruise control box. Now if you still have the stock honk box on the motor I don't know if this place will still work.

Once that is done you will need to locate the coil. I took out the battery, moved the power steering resivior, and took the coolant tank loose to get at the bolts. Unplug the connector and coil wire and remove.
(This pic is later in the process but it shows the area it's in, which is under the power steering resivior)

Now that the coil is in your hands you will have to do some modifying. (Looking back on what I did I think it would be easier to find a new coil wire and just replace the coil but I chose to re-use mine.) This is really a normal bosch coil like off a c900 but it has a hat on top that will have to come off. Inside the 2 smaller holes are nuts but thay are slotted to be tamper proof so the tool I used to get them off was the tips of a needle nose pliers.

Once off you will have to make terminals of some kind. I used the terminals off a c900 coil I had laying around and it worked nicely.

Ok the box is mounted and the coil is set so now on to getting the trigger wires set up. The coil connector you pulled off will have to be cut and wires stripped. Here is the part that can give you headaches, the green wire is your positive trigger wire and it is shielded. When you strip off the insulation you will find a bunch of bare shielding wires and one tiny little green wire, you want just the green wire. If you have even one strand in the crimp (like I did) the MSD box will not fire the spark. Once those terminals are on you are ready for hook up.

For the 6T the wiring was simple. 2 heavy gauge wires which are positive battery and ground, and 4 smaller gauge wires. The orange will go to coil positive, black to coil negative, white to the green positive trigger, and red to the white negative trigger. On the other boxes I believe it's identical but I don't know for sure.

After that the MSD is ready to go. Gains wise on my car I noticed the motor ran a lot smoother at idle and low RPM and when driving there seemed to be some improvement mainly with grunt off the line and top end seemed to pull a little more. I'm still playing with spark plug gap since that is one of the gains the MSD gives you which is you can widen the gap more to get a hotter burn. Right now I gapped mine to .04 and haven't had a problem yet so I'll have to get on a AFR gauge when I get a chance at school to do some more research.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -8. The time now is 12:07 AM.

Powered by vBulletin® Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
All content is copyright The Saab Link and it's original authors.


Garage Plus vBulletin Plugins by Drive Thru Online, Inc.