OK guys I finally pulled apart my old cyl head with about 60k miles on it. For those who do not know me I bought my car new had it fully bolted and tuned after the 1st oil change and it has grown from there. After maybe 2 to 3 years I threw on a meth kit. I ran washer fluid for the first couple of years but then when I switched to the K04r I started mixing my own and ran a high meth %. I have seen way worse valves than mine on other cars I have worked on and the head that is on my car now had double the build up to mine.



Here is a pic of my combustion chamber from the head just weeks after I did my dyno

 

Quick question, how about e-47? Any cleaning benefits involved there at all or not enough ethanol to do anything besides for HP gains?

 

No E47 will not clean the valves. Running meth or a 5th changes the intake manifold from a dry to a wet type so the fuel passing by the valve cleans it. Our DI injector shoots into the cyl not the port so no fuel hits the backside of the valve cleaning it on the stock fuel system.

 

You make me want to run meth haha

 

Haha meth is good it also acts as a 5th so helps out when running E or can help solve some of the shitty that happens when running 91.

Remember I ran a 550cc nozzle on my dyno with only e25

 

It'll be interesting to see what mine look like when my head comes off in the next few weeks. I'm running Powell's PCV oil/air separator which should make a lot of difference.
Regardless, I have new valves going in, plus my new 5th injector should help some as well.

 

Yes i totally believe in the powell separator but it doesn't help to fix the valves so after cleaning the valves and putting it on will keep them clean.

Did you just add the 5th or did you have it on for a while?

 

What about plugging the PCV and running a breather on the valve cover?
Will that help eliminating coming?

 

I started out with the ZZP 5th injector when I switched to the ZFR in 2013. But Term was having so many issues with tuning for it (I still think something was wrong with it but ZZP denied it) that we switched from e85 to e47. We could nix the 5th injector at that point.

I'm going back to it now because it would be nice to run a higher ethanol content for additional cooling plus with the MAF controller it should be easier to manipulate (in 2013 ZZP only offered a MAP based controller).

Nice side effect is to knock you off that 6th place on the dyno list lol. For a short while, at least

 

There are actually 2 lines and I have never looked into an oil cap breather. But if you don't have either hose going into the intake then yea it'll solve it but GM designed it with the 2 so I dont know what would happen if you took both off.

I believe cleaning your valves and adding the powell will solve the issue but i need the octane and additional fueling so went with the meth and will be thinking about the powell once my build is complete.

 

Haha.....

Ok then wonder how yours will look vs mine.

 

those valves don't look to bad at all. and dang the combustion chamber is clean. ill keep running my meth.

 

I'm never taking it off! Gonna upgrade it this spring!! I'm going big!!

 

when my meth was hooked up spraying 1000cc nozzle it was so clean that i could perfectly read the manufacturing numbers with my inspection scope

 

But you had to fill the bottle every 2 days

 

Get a bigger tank lol

 

I'm just trying to decide if venting the valve cover to atmosphere will suffice.

I guess meth is my next best step

 

The ultimate solution is meth and the powell system

 

I was reading some people did put a breather cap on and put a plug on the manifold. The people that did it said it works great and a hell of alot cheaper then Powell oil separator. I guess maybe for a temporary fix it could work?

 

We did this on an LSJ I turbo swapped but it also has a TTR manifold

 

Id love to run meth just for this added benefit, but I don't really know how to go about the best way to install. Would a TB plate with tapped fittings be the best?

 

I tapped into my cold pipe

 

Where at on the cold pipe?

 

Around 6in away from the TB. You have to tune for the extra fuel through the maf. But 91 turns into actual fuel!!

 

don't go that way or ull need a solenoid to keep the engine from syphoning ur meth out of the line when its in vacuum not spraying.