I found several threads about the pros and cons of buying a high mileage EVO, but found nothing about modding a high-mile EVO.

Is it assumed that an EVO engine is not as strong at 120,000 miles as it was at 20,000 miles? Or is the high mileage motor just as strong as it was at 20K?

Should the modding strategy be different for a high mileage car vs. a low mileage car?

It seems reasonable to me that attempting to rein in the torque while modding to increase HP would be prudent for a high mileage engine. Does this make sense?

If so, what turbo and cam combination on E85 can give results of 350trq/450hp? Or even 350trq/500hp?

 

hmmm, i would think if you run gsc s2's or kelford 272's with maybe fp red or fp black should get you in that ballpark. keep the torque in check though. i see you run hks 264's which are not much better than stock. how much do you make now on pump?

 

Compression/leak down test. Then if your gonna go for big modding I would rebuild the engine with stronger parts to be safe. 450 hp is gonna need a turbo upgrade and supporting mods. Don't cheap out and I see no reason why a higher mileage evo can't be built. Bought mine at 102k. Currently at 104.4k and running strong.

 

When looking for more power, you eventually run into the situation where the best next mod is a fresh motor.

 

I started modding at 186K,

But if you want, freshen it up.

I made 420awhp on my old BBK-full with Kelford 272's

 

Or this. Do a full rebuild.

 

Mileage isnt as important as how well the engine has been taken care of... that goes for anny motor.

 

As long as the compressions there and the motors healthy why not? I just bought my second evo for cheap with 144k and i plan on making 400whp as a daily driver. Ill worry about it when it goes haha.

 

Just to warn those who want to push the stock block, when your motor throws a rod, it gets real expensive to fix lol. I know first hand now. Not having a core really hits the wallet, along with all the other parts needing replaced because of metal shavings and chunks floating around.

 

That's true. I have had 3 spare blocks in the winter. Now have only one left,LOL
These guys with pushing stock rotating assemblies. It can be done though, just don't know when they go.