[John M]

Originally Posted by SPARTANENGINEER1701

logical

but the rebuild of these engines is so expensive this is 1 very bigg issue.

Yes, the 3.0 mitsu parts are pricier than domestics in most cases.

Originally Posted by SPARTANENGINEER1701

2 3.0 for some reason eat there bearings proven fact

Usually this is due to oil starvation. The oil pump frequently has problems as it goes over the 75k mile mark.

Originally Posted by SPARTANENGINEER1701

3 the turbo housings exhaust side cracks under strain

It's hit-and-miss. I never had an issue but I've seen others that did crack.

Originally Posted by SPARTANENGINEER1701

5,turbo engines are not the same as a non-turbo 3.0 dohc

the changes are very costly plus wiring

Many of the turbo conversions have just used the turbo hardware on the NA engine setup. You can only run 7-9 psi but it makes more than enough power.

Originally Posted by SPARTANENGINEER1701

and this is a interferance motor ,not good at 10- 1 comp spinning at 7000 rpm red line.

The sohc is totally diff just same casting block,

i have both dohc and sohc

but if i get a motor that doesnt need the rpms itll live longer

feel free to correct me

The SOHC is totally another engine and really isn't anywhere near the DOHC in power potential. Basically all Mitsubishi engines are interference design; you get more power that way. As long as your timing belt is replaced every 100k miles or so it isn't an issue.

There's a handfull of people at 3si.org who have turboed their NA cars with good results. Want a V8, RWD car? Done -- just google the word "vr440".

My old car -- 12.5 @ 109 on stock turbos, stock cat-back, 4000+ lbs: