hey everyone happy spring break

when I'm on a road trip to Florida in my 3rd good ride no problem yet "knock on wood".

well i seen a guy in north Carolina with a 1990 2.8 with a coil pack off a 3100 motor and he wired the computer up some kind of way to piggyback off his main one.

and i was wondering how it seems like a great idea but what do you need to upgrade and change.

hopefully i will see some of you guys on the way

 

First things first, is your car distributor or DIS ignition?

 

distributor i want to which to DIS

 

Basically you need to setup an external crank trigger on the crank pulley, and mount a crank position sensor so the ecm and or icm knows when to fire the coils, theres a couple ways to mount the trigger wheel, find an aftermarket one(they're overpriced, and I don't think theres one that is direct bolt on either) or easiest way, I believe is to get a timing cover from a 3.4 RWD camaro(93-95 v6) then off of a buick 3800 engine, the harmonic balancer, with reluctor ring and notches, from there its a matter of sensors and wiring(Which I don't know much about), but I believe your stock ECM can run it without tuning. Other than that you'll need the coils, ignition module, and a coil bracket, and imo get MSD coils and module if you really want a good ignition system.
Also if you're a good DIYer and have the tools, here is one route, if nothing else it should help point you in the direction of what you have to do:
https://www.thirdgen.org/forums/v6/5...rong-your.html

 

sweet looks like i got a project when i get back home and I'm going to stop at a junkyard down here get a coil pack and sensors

 

3800 stuff is not a direct bolt in, and requires making reluctor wheels/discs (I'm going to have fun doing that and finding a way to mount them between the crank pulley and the damper along with mounting the CKP sensor). Everything has to come from the same engine, an FWD car or 3.4 Camaro engine.

 

Didn't realize you had to make your own reluctor wheel using buick stuff, but in that case, why not use 3.4 RWD ****? You can put the timing cover from a 3.4 on and modify the reluctor wheel on the back of the 3.4 dampener.

 

If it wasn't for the close quarters between the damper and the timing cover, I could just swap the reluctor rings over from a 3800 damper to the existing one (as is done for quick start modifications to older Buick 3.8L engines as in the GN) and call it a day. Besides, the 3.4 setup requires a reluctor ring be cut in either the crank pulley or a plate sandwiched between said pulley and the damper.

 

I was looking at the buick ignition and I don't think you'll be able to fit the sensor & reluctors under the 2.8 or 3.4 balancer. Would be nice though since that's the better ignition.

 

BL85 has a post about doing this. Even has XDF's and bin's to use.

 

That thread is linked in my first reply.