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MILLERMON CONVERSION

4925 Views 22 Replies 0 Participants Last post by  Spasso
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With the cost of rotors around

With the cost of rotors around 200.00 and caps at 249.00 I think a system change is in order.
ANYBODY?
DJ
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Has anyone just made an adapte

Has anyone just made an adapter that would fit on the stock dist. and allow you to put on another type of available cap/rotor combo. Another option is to have the dist. body remade out of alumin. designed to take all of the internal parts as is and machined to take a common 4cyl. dist. cap.
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IMO the problem with these mod

IMO the problem with these modifications is that they invariably exceed the cost of buying stock parts, don't look very good in many cases and don't provide any short term gains in power or savings.

Yes Ferrari caps are expensive on the front end, but since they seem to last 50K miles or more, whick works out to 15-20 years, the cost then becomes very reasonable. Until the day comes when there simply are no more caps and every car is forced to undergo a Mod to be driven it's just not economically feasible for a Co. to manufacture a nice looking, quality replacement and have a large enough market to make it worthwhile..

But who knows maybe I'm wrong.
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I agree with JRV,

What happ


I agree with JRV,

What happens down the road a few years when the modded part fails or has a problem? Chances are the guy or company will be nowhere to be found, then what?

PLus I agree they look out of place and devalue the car.
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We would be no worse off than

We would be no worse off than we are now at the mercy of Marelli. Maybe then we could look for something else, or maybe it will not be $1000 for caps and rotors or maybe I will be driving a 328 with $10 rotors instead or maybe I will hit lotto and will love to pay Marelli for robbery. The point here is upgrades like Ben's offer a less expensive solution that is a better product because it is adjustable and uses common and inexpensive replacement parts. You could buy an extra couple of spare parts now if you were worried.
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Steve,

The QV mod/upgrade r


Steve,

The QV mod/upgrade requires cam removal.

Remember everyone, only those with 80-82 injected 308's are being singled out here. It's discrimination against us low HP Ferrari owners - LOL.
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I went with a Millermon distri

I went with a Millermon distributor on my 3.2 for parts availability, ease of maintenance and the fact I have gone single bank coil pack failure three damn times in my daily driver Mondial 3.2.

Ben's simple conversion uses a commonly available, reliable, standard Mallory optical trigger. The shaft/counterweights are standard Chrysler, as are the cap ($8) and rotor($4). These parts are readily available everywhere, and will be forever, probably at these same prices. It is extremely simple to install and maintain.

The part that Ben makes is just the body, and quite robust machined aluminum that looks terrific. The picture below shows the body for size fitting - the final is shorter. The whole conversion is costing me less than what I paid for one of the coil pack failures.

He has mostly done 2v cars - mine is the first 3.2, and he has been great to work with. You can follow the conversion over at FChat.

Yes, I know it is not original, but neither is my tubi exhaust - and I think both add a lot to the enjoyment and peace of mind to owning a terrific car. Just my experience and opinion.

best to all, and good luck jrv on your tech board!

rt
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Does anyone have pics of the c

Does anyone have pics of the complete instalation and pics of all the parts & pieces that make up this conversion?

Best, JRV
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JRV
Will post some documentat


JRV
Will post some documentation & pictures next week from soup to nuts of the dist. and installation.
best
rt
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3
Here are some pictures of the

Here are some pictures of the test fit piece. The final distributor will be shorter than shown, and will mount on front bank instead of rear as pictured.
Also attatched is wiring diagram. MSD optional.

More next week - advice welcome.
best
rt

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Russ! The Killer Angels is one

Russ! The Killer Angels is one of the best Civil War accounts I have read, Gettysburg.

Oh yeah, and thanks for the update on the Millermon conversion. I can see by the design that it is reversable for future concerns of originality. It is cost effective and practical and I have one on order. I'll save my good caps and rotors for a rainy day.
DJ
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DJ
I'm going to put mine


DJ
I'm going to put mine on a distributor machine to tune the advance curve - will let you know what I find. Looking at 10 static and 34 full advance in about 3500 for a wag. Any comments, anyone?

I really think as word gets out on Ben's conversion he will change his tax bracket - quality effective product.

Thanks for the comment on Killer Angels. We read it in my War Studies class here at NDU (not Norte Dame
)and walked the battlefield just 2 weeks ago. Would highly recommend both to everyone.

more next week
rt
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2
Received the distributor from

Received the distributor from Ben. Looks great as advertised. He sent it polished as he said it was easier to keep clean. Came with the distributor and tach adapter for about $500. Expect the cover plate for the other side in a day or so.

To review those not familiar, it has a reliable Mallory optical trigger, and widely available off the shelf Chrysler centrifigal advance, cap($8) and rotor ($4). The reason I am doing this is to rectify my terrible reliability experience with Marelli, add adjustability to the ignition, and simplify (and lower costs of) maintenence. Since this is the first ever 3.2 Millermon installation (all others have been 308s), will be adding a couple of local tweaks:

Will be making a bit more husky retainer ring to hold the distributor to the head - not sure if front or rear bank is best, but will test fit next couple of days once we remove the old coils and free up some room. Also decided to use threaded pins with smooth tops to drive off of where the rotor used to be (affixed with 3 small screws that we are converting to drive dowels).

Will be great to adjust the advance (see '3.2 w/carbs - part 4' at Ferrarichat.com) and will start with a static of around 10 going up to 32 - 34 in by 3500 as a starting point.

Will have an MSD 6AL box with 8000 rpm limiter (in the trunk to keep cool where the Kjet ECU used to be), an MSD Blaster 2 high output coil, and will be using Taylor or Accell wires with 308 well boots, and I am trying to avoid the also notorious (at least to me) plug extenders.

More pictures as we get underway. Any and all advice welcome!!
best to all
rt

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Hi Russ,

Nice set-up...Clea


Hi Russ,

Nice set-up...Clean and simple. As you may know from my posts, I've been using an MSD box and coil on my BB for many years now. I can't over emphasize the importance of quality ignition wires and connectors. Personlly, based on the very positive experiences I've had with them, I'd contact Magnacore about wires. I, too, was not pleased with the "extenders" used on my BB...and had a set of wires built that do not utilize them.

My current set-up uses a MSD 7AL-2, their HEI coil, Magnacore 8.5mm wires and NGK BP7EIX plugs gapped at .035".

There's a bit of technical information that I obtained from both MSD and NGK in this thread:

http://www.ferrari-talk.com/discus/messages/5/685.html?1062555417

Russ, I hope you find this information helpful. I spent alot of time speaking to engineers at both companies, so feel free to pick my mind.

Regards,
David
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David
Appreciate your comment


David
Appreciate your comments greatly - you may not know it, but your boxer threads have been my compass on a lot of these issues.
How did you address the spark plug well boot issue without extenders? - that's one supporting detail I'd love to hear about.
Again, many thanks
rt
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Russ,

On the BB, the extend


Russ,

On the BB, the extenders are very short...maybe a couple of inches long, at best. The inherent problem I had with them was their poor dielectric properties. When I first started to troubleshoot my suspected ignition problems, I found that a few were acring through the sides (of the insulation). When I set the OE wire set (and extenders) to Magnacore, their concern was that the extenders barely covered the end of the spark plug...hence, the spark could arc downward under high humidity conditions. Their solution was a longer rubber boot, on the spark plug end of the wire. This solution works, though it's a bit on a pain to make sure the wire is on the plug securely.

Considering the depth of the plug hole on the 308/328 cars, I can't see how you can get away with no extenders. However, there may be a better quality extender available from Magnacore. My contact there is Steve Brown...

One item worthy of mention using the MSD ignition system...If there's any weak link/poor connection, you'll know it. You can "hear" the sparks, if your connections are not 100% secure. How do I know his??? HA!

Regards,
David
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Thanks for the updates Russ an

Thanks for the updates Russ and Dave. I am still waiting to hear from Ben confirming my order. It will be a nice upgrade.
DJ
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Technical problems.
Well, we


Technical problems.
Well, we have hit a speed bump peculiar to the 3.2 mount. While Ben's distributor works quite well on 308s using centering on the rotor shaft, the unique 328 (and TR) 3 screw rotor mount is not going to work as the tolerences for centering are a bit too tight and we have a vibration.

As Winnie the Pooh would say, "This will require some thought..."

best to all
rt
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2
Possible new plan - the unique

Possible new plan - the unique 3.2 technical problems may overcome mod work needed.

Looks like we may be able to straightforward adapt an existing Mallory distributor with an offset drive dog by making an adaptor plate and cutting a groove for the drive. Oddly enough, this distributor is less expensive at $248 and more compact. Will see this week.
More later - advice welcome, details available by email.



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>>with an offset drive

>>with an offset drive dog by making an adaptor plate and cutting a groove for the drive.<<

sounds like an excellent solution.

Regards, JRV
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