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Originally posted by Wayne at Pelican Parts
I would break it down like this:
Core engine, 3.2 in need of rebuilding $5000
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Not unreasonable, but you can probably do better if you are patient. You can recoup some of this expense by selling off the parts you don't need (like the stock exhaust and DME).
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Engine Management and intake system to run the engine with two turbos $8K
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Clewett's 3.2 based Twin plug TEC-E with 3.2 manafold is $3200. Not sure if they would give a discount for a core induction system from a 3.2, but it isn't unreasonable that they would. I also don't know what else would be needed to adapt this to a turbo, but they list it as fitting a 930. Intercoolers would be interesting, and probably quite expensive, unless you could adapt an off the shelf part from a different application.
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Rebuild of the engine itself to your 'turbo-ready' specs $8K - standard cost for an engine rebuild.
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That sounds about right, probably at the high end of the range though. The valve job and machining for the second plug is ~$1100, I have in my rebuild notes that EBS will do their 98mm bore and replate for ~$2200 with JE pistons. It may be a little higher for flat top pistons, I don't really know. Using your catalog prices, Raceware head stud kit and case essentials kit are ~$1500. You could save money here by leaving it 3.2L and using the stock cylinders, assuming of course they are in spec.
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All the turbo stuff (exhaust, turbos, etc.) $5K
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I did a quick web search, rebuilt units from a Mitsubishi 3000GT/Dodge Stealth TT can be found for ~$2K for the pair. Probably less if you can find junkyard units and have them rebuilt. I couldn't find them in your catalog, but Bursch headers are ~$400 from one of your competitors. A compitent muffler shop could relocate the flange and do any plumbing needed. The oiling would be tricky, but I still think you could do the exhaust and turbos for ~$3K. Less if you know how to weld.
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That adds up to about $25K in parts alone, and I think my estimates are pretty reasonable.
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Well, My $10-12K was optomistic, but I am still well under your $25K figure for parts.
Of course getting a tranny that will survive the added power is a expensive problem that would need addressing (unless you started with a G50 Carrera)....plus bigger brakes. Not to mention the dyno time to get the fuel/timing map right.
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But it would be a cool project!
-Wayne
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Wouldn't it though? I'll get started as soon as I win the California Lottery.
Tom