Ignition choices for 3.6 w/ PMO's

[MBruns]

We manufacture a 12 pin dist. that has dual MSD pick ups internal or a crank triggered 12 pin dist that uses all MSD components, the cost is aprox 1500.00 for dist.,cap,rotor, ready to slip in the engine and hook to the rest of the MSD system and plug wires of your choice, the crank triggered system ends up being about the same price if you supply a clewett style crank fire pulley we can modify for the timing adjustment and sensor included, the cap and rotor are available and reasonable, send me your e mail address and I will send you some pics, we have been racing these for about 2 years and they work very well,they are a billet alum housing with a bushing on the bottom and a sealed ball brg. at the top, the internal triggered dist also has an adjustable timing curve that is easily changed. we make them for 2.0-3.8 911,s
Thanks, Mike Bruns JBRacing.com

send me an e mail at Brunsmspts@aol.com

[Henry Schmidt]

Another option.
available for 2.0 to 3.8 engines. Use Bosch CDs or MSD.
Generation I and Gen II distributors from Supertec.
Gen I



Gen II

[mede8er]

Hey Lyn,

Wanted to bump this thread as I saw the finished product at Homestead yesterday.....what and awesome job....I hope you'll post some project pics for others.....

On the down side that 3.6 developed an oil leak and mine developed a #2 cyl misfire.....

Brodie

[Wayne 962]

Eade Hopkinson (green RSR clone featured in Pelican Ads and in Excellence article) is running the Electromotive system on his stock 3.6 with PMOs with no plug problems so far. At this moment, I recommend going with this system over the twin-plug distributor, as it seems to be cheaper, and a bit more reliable in the long run. I've never been a huge fan of points and rotors...

-Wayne

[RSstop]

Brodie, thanks for the kind words on the 3.6 conversion. The car was finished the night before the PBOC / PCA track event and it ran great for both days. It also spanked at least one GT3 which is always an ego boost! I didn't take any finished pictures yet, but will soon and post some of the things I didn't find any information on: wiring, engine mount, and tin/sheet metal modifications.

Back to this thread's topic: Ignition and PMO's.
There is truth in everyone’s advice on this post. In further research, we found many successful Electromotive twin plug / carbed engines as Wayne states above, however no one posted that before. I also talked to one person that yanked out the earlier electromotive and replaced it with the JB Racing 12pin distributor/ MSD with much better results than a botched electromotive installation. One race shop that runs them both stated both work well, but on the dyno, the MSD CD give about 5 extra HP.
I presented both options and costs to the owner and we decided to try the new XDI Electromotive. It was less cost, and reduced clutter. One little electromove box does the same thing as two MSD 6AL boxes, plus tach adapters, plus 8981 timing computer, plus billions of wires. It takes some real estate to do a clean MSD installation. The electromotive coils do take up room, but they mount nicely between the PMO's.
I believe Steve when he has seen Electromotive plug fouling issues. During start-up, most of the Bosch 3-prong 3.6 plugs fouled immediately. Once idle jets were corrected, I installed NGK BPC6ES @.030 gap and plug readings look perfect on and off the track. It appears the new XDI Electromotive works very well when installed properly. Keep the power and sensor wires separated and route the sensor wires away from the starter motor. Also run dedicated power wires, fuses and relays to each coil pack.
I am getting ready to do a twin plug on a 2.8 where I plan to use MSD's so I will have another comparison.
Lyn

[RSstop]

Here is a photo. I'll take more and post soon.

[herman maire]

More pics ,more pics.....

Do you like this set up better than the motronic set ?

Are you making more HP than a motronic motor?

How reliable is this set up for year round use?

[herman maire]

I know the PMO are pretty expensive. Do you have any used sets hanging around heh,heh.

After the PMO's how much more $$ to complete conversion?

[Henry Schmidt]

Everyone has an opinion.
In my opinion it's hard to beat a single cap ignition and MFI.
EFI and Electromotive can certainly function and function well. My thinking is "if I want an engine with Buick engine management, I'll buy a Buick."
Porsches are not only about the bottum line or maximum fuel efficiency or even the latest technology. They are also about style, feel and wow.

3.2 SS, MFI, Supertec Gen II distributer with MSD and sport muffler.