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Originally posted by Zendalar
Well, they heat up allright..But since the cylinders are cast iron, one would not have the stud pulling problem as in 2.7 liter.
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My understanding is that studs are pulling out of the case, so it doesn't matter which material cylinders are made of.
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Also since the compression is low, the 1 bar extra pressure won't stress much because these engines have been made to 2.7 (??) Horsepower is horsepower, wherever it comes from ??
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You are wrong. Lowered C/R is only there to compensate for boost...so dynamic C/R will indeed go up as soon as you start boosting. Static C/R on N/A engines is usually decided pretty conservativly, but it's dynamic equivalent on turbocharged engine can reach up to 14:1. So what you end up when boosting is bigger air/fuel mixture inside your cylinder. When ignited, this mixture will force piston down with greater force than it's N/A equivalent (hence greater power) but will also exert greater force in other direction, trying to pull the heads out of the case.
So yes...horsepower is horsepower, and it comes from greater combustion pressure in your cylinders, and that same extra pressure will try to lift your heads with greater force.
I'm not saying that it won't work...it probably will. I don't know anything about how strong 2.4T engine is, there are more knowledgable people here, but what i'm saying is that you should consider raised strain on your studs and possibly do something about in case experts here tell you that they are weak.
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I am looking for 200-230 horsepower with the turbo. Already bought the turbo for 50$ 
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200hp shouldn't be too hard...what turbo did you buy? My guess is that you bought used Garrett T3 off a old SAAB or Volvo.
They were usually fitted to 2.3L engines and will work fine with your 2.4L engine.
I wish you good luch with project. I really like budget project like this, at least just to prove it can be done (i just got flamed for propozing EFI to one of CIS "good old boys" on 911 Tech Forum
)
P.S.
You could always run with hard-coded ignition...with other words, no advance. ROW 930 had no "boost-related ignition retard", just vacuum-advance to help emissions at low revs...
Your car being so old, it's probably not emission-strained at all (at least that's the law in Sweden, and you Finns shouldn't be much different
)