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Question 3.2 to 3.8 Andial Conversion

Has anyone on this forum done this conversion? I think the conversion includes Carillo rods and pistons and cylinders. I know that the spigots need to be bored for the bigger cylinders. I'm trying to get some reliability information on this beast. Thanks!

Mark
Old 10-27-2005, 12:33 PM
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The Andial 3.2 to 3.8 conversion needs a 3.6 (76.4 mm stroke crank) and stock 3.6 rods.
The dimensions are 76.4 X 102.
Andial also offers a 3.7 conversion that uses a 3.2 crank and does use a special rod (1 mm longer) which allows them to use the same 102 mm piston in both 3.8 and 3.7 conversions.
The dimensions for the 3.7 are 102 mm X 74.4.
Both of these conversions requires extensive case machine work. There is more work on the case than just boring the spigots. When completed the case look very much like a 962. Even the case through bolt washers need to be machine for cylinder clearance. Then each cylinder is machined as a separate project to allow for case though bolt and nut clearance.


I hope this helps .
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Last edited by Henry Schmidt; 10-27-2005 at 04:58 PM..
Old 10-27-2005, 04:54 PM
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Henry, Thanks for your response and clarification. I was looking at their 3.7 liter "conversion" package which includes pistons, cylinders and rods as you said in your reply. The folks at Andial were telling me that this setup will work with the stock fuel injection system that came with the car (1987). I'm wondering if this 3.7 liter can really withstand a beating on the track without breaking. I know that whenever there is any machining too do, the structural integrity. Are their any concerns that you are aware of regarding the machining of these cases?

Thanks,

Mark
Old 10-28-2005, 05:33 AM
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For the cost of the conversion you could easily have a Porsche built 3.6 with twin plugs, knock sensing, sequential injection and Varioram that will survive day after day on the track...
-Chris
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Old 10-28-2005, 12:47 PM
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Quote:
Originally posted by ChrisBennet
For the cost of the conversion you could easily have a Porsche built 3.6 with twin plugs, knock sensing, sequential injection and Varioram that will survive day after day on the track...
-Chris
Exactly
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Old 10-28-2005, 02:12 PM
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Yes I agree with you guys on above statement. There is clearly a point of diminishing returns once you exceed 3.5 litres. For the price of machine work and cylinders you are in 3.6 territory.

In my build I considered that crank in my 3.2 to 3.4 upgrade as my crank looked like it was near death and a replacement was $$.
After learning just how much more $$$ was invloved, I went back to my original plan.
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Old 10-30-2005, 07:13 AM
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Quote:
Originally posted by ChrisBennet
For the cost of the conversion you could easily have a Porsche built 3.6 with twin plugs, knock sensing, sequential injection and Varioram that will survive day after day on the track...
-Chris
Just exactly how much is this Varioram conversion and what do you get?
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Last edited by Henry Schmidt; 10-30-2005 at 08:39 AM..
Old 10-30-2005, 08:31 AM
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Quote:
Originally posted by Chris Bennet

For the cost of the conversion you could easily have a Porsche built 3.6 with twin plugs, knock sensing, sequential injection and Varioram that will survive day after day on the track...
-Chris
Quote:
Originally posted by Henry Schmidt
Just exactly how much is this conversion and what do you get?
I'm not sure if you're asking how much the Andial conversion is or if you thought I was referring some sort of "Porsche built.." conversion.
What I was trying to say was that you could have a stock 993 motor with the latest technology for less than the (very expensive I'm sure) Andial conversion.

I don't know if Andial mentions it anymore but when they came out with the 3.2->3.7 conversion they were saying they didn't recommend them for (boy?) racers or something like that. Maybe someone remembers their Excellence ads from back then.
-Chris
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Last edited by ChrisBennet; 10-30-2005 at 08:46 AM..
Old 10-30-2005, 08:43 AM
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No Chris
Sorry, I clarified my question after you answered it.
My question was " how much do you think a Varioram conversion would cost and in that cost what do you get?"

Your statement left me wondering how much it would cost to make an 87 Carrera into a Varioram conversion.
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Old 10-30-2005, 09:11 AM
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Randy Wells would know the answer to that. He had a motec controlled 3.2 with varioram and now has a Motec varioram 2.8 I believe.

Cheers
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Old 10-31-2005, 03:25 PM
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