like i said, "normal wear" is a subjective term
to me, making a ton of power could be "something happening to it" (bad tune, abused, etc). i guess i could have been more specific with that statement. my mistake.

 

Yea the car has 105,xxx miles on it at this point i think. I'll have to check tonight. But the previous owner told me that it was making 400hp at one point. And finding the SD stuff, and seeing the injectors are 670cc when the tune is setup for the stock 580cc's. I dont doubt that this car was pretty beaten, and possibly abused.

From what I am reading though as long as the numbers are similar across the board the engine should be fine. IDK how true that is in this case.

Update though. I found a way to do a leak down test. So hopefully tonight or tomorrow I will put the car at TDC, pressurize it and see where its leaking from.

In the event that I do have to do a rebuild. What all would that entail?
Last winter I had to do quite a bit of work on my Ralliart. It's balance shaft belt broke, causing the main belt to break, ruining valves and causing me to pull the engine apart. So i am familiar with all of that, however I have not had to remove pistons or a crankshaft before.

If that becomes the case. Im thinking I might just go ahead and switch to my 4g69 block.

I might be getting ahead of myself and thinking about the worst case scenario. I hope I dont have to go that far this early in my Evo ownership. LOL

 

The car had larger injectors on the stock tune? If so, that could contribute to increased ring wear.

 

Correct. So that is something Im quite afraid of...

And assuming I dont end up having to repair the block. I plan to return the car to stock. I have a manifold, injectors, fuel rail, piping, bpv, and all sitting in the garage... That way hopefully I will clean it up and start fresh.

 

even numbers across are okay, but they still need to be within the service limit.

if no scarring on the cylinders, you can do a quick xhatch hone and put new rings in. but man.. those injectors were dumping quite a bit of fuel. that could have been quite a bit of metal-on-metal going on in there.

 

Eh, I bet AFR's were fine at idle and cruise, that's the beauty of closed loop. The ECU can self adjust fueling by +/-25%. If the car was at least tuned at WOT for the injectors, it is probably not the issue.

 

Time to rip its head off and post some pictures.

 

Yep. Did a leak down and the left cylinder 1 valve seat is leaking. Finally got around to taking everything off. Drained coolant, removed radiator, turbo and such was removed long ago, disconnected the wiring harness and as many hoses as I could, then I took off the valve cover...

I set the cover down on my workbench and some stuff shifted around causing my Samsung Galaxy Note 3 to fall and spiderweb crack the screen... :/

But as I turned around to inspect whats under the cover I noticed that something didnt look the way I expected it to.



Apparently Ive got Tomei cams!

Is there any way to tell which onese these are? How would this affect me wanting to put the car back to stock? Im assuming this will throw the stock tune out the window... Not that Im upset from my understanding these could be worth around $500... lol

 

if they are the 264 PonCam, you will be fine. they are super mild. as for what they are worth, they aren't a very popular option. i think i sold mine for $50.

if they are larger, then they will be worth more, but still not a popular cam.

 

Oh wow alright. I just googled last night and saw they were selling for $240 per cam...

Is there any kind of identifier so that I could tell what size they are? Im just guessing they are pretty mild. The car didnt have much lope or anything during idle. A bit of rumble but nothing very aggressive e sounding.

 

My 8 had compression from 130-128-124-120 and when I sent it off to the machine shop cylinder 1 was egg shaped and I had to bore it over. Mine is my DD and on SD and it drives as smooth or more so than my IX that was still on the MAF. Finished up my build last month and motor is broke in just waiting to get my tune at this point.

 

Are you 100% sure the motor is stock?
Also, if you are not tuned at all and the car is new to you, why would you boost it to 14psi or more?

 

Im not. I was told the inside of the engine was stock when I bought it. But as you can see from the last picture its obviously not.

Again I was "told" it had been tuned. But when I looked at the file it was still set for 560cc injectors and not the 670cc PTEs that were in it. I did not mess with how much boost it was running. Just left it the way I received it.

 

I the Evo community anything short of forged internals and a giant turbo is "stock". LOL
If the cams are 264s, then it's pretty close to stock. Unless the seller claimed the engine was never modified, that wouldn't be cool.

 

You should drop the pan and take a look, you might find another surprise.