Well my Evo VI has more than 100k Km
I was on brake and I got something like 253HP
The question is where it can lost its performance?
Cheers

 

That's such a vague question. You need to list your mods, before or after some evident event, like environmental factors, part failures, or dyno readings. Please specify your question more. I understand your getting higher in mileage, but you can still make good power with high mileage. It will get less but scheduled maintenance on parts is a huge factor on efficiency of an engine.

 

Ok this engine is total stock.
No mods there.
I will try to upload here the dyno readings so you can see what are they look like

To specify my question more
We are running a hill climb races with this Evo (stock class)
I´ve been told that this engine needs to rebuild and it lost power simply because it is old.
I´m afraid to put more pressure on the turbo that I will blow the engine away.
On the other hand the rebuild is quite costly exercise.

If I will check the around parts for any leaks and see what we can do
will upload the image later today

 

bro its a VI, sell it and buy a corolla!

 

thx for advise, but I don´t like corollas (maybe AE86 will work)


here are the dyno readings

 

http://www.putfile.com/pic/8024299
doesn´t work

 

That is one strange as hell power curve makes me think it has a boost leak or its pulling alot of timing near the 4.5k+ mark.

 

[QUOTE=RoadSpike;5569295]That is one strange as hell power curve makes me think it has a boost leak or its pulling alot of timing near the 4.5k+ mark.

I will now look for boost leaks. I thing this might be the main reason at the moment.
new wastegate look around pipes etc and chack the compression ration as well

I want to sort it out ASAP

 

First things I would do would be boost leak and compression tests

 

So now I have down the manifold turbo etc and there were leaks...
Manifold (exhaust) is being modified today/tommorow
Turbo and compression in valves is absolutely ok
wastegate was coroded and almost not working (new now)

new air filter is fittet as well and blueflame turboback
will see how we can move from this...

mapping will be done 12th may (1,5bar is target)