Valves/Springs

[the_paynter]

What valves/springs do we use to upgrade? I heard the EG33 is hydrolic unlike the WRX so we cant use WRX ones apparently.

This is second hand information so I don't know how correct it is but I would really like input as Im about to build a bullet proof engine and I want to know what are available. If someone could point me in the right direction that would be awesome.

I hear that ECUtune makes them, anyone else? Or is the whole WRX ones not working is a myth? Let me know!

PS: I searched and didnt see anything about this, if its been asked before I apologize

[TomsSVX]

Im going to ask to move this thread to Mod Mania first off...

Secondly the info you got it good, but it has holes

You cannot use wrx valve with the stock lifters, they are about 10mm longer roughly which is too much for the Hydro lifters to make up. So what some have done and I will be doing next week is gutting the hydro lifter and using shim under to set the lash. Converting to a solid lifter will give you much better options for camshaft profiles and lift. You will need to convert to single spring and make sure you get all the bits and pieces along the way.

Valves
Springs
Retainers to match springs
Spring seats to match springs
Tapered valve half moons (cannot think of the name of them for some ungodly reason) to match valves.

Now the early wrx valves are the ones I am going to use. They are the right diameter to fit out seats and guides. You can go with oversized valves but make sure your piston selection will be able to utilize the larger diameter valve.

Now for cams, there is no golden recipe like there is with an EJ motor. All custom profiles are one off more or less for specific applications. I suggest you contact Web Cams in CA. I am using them for an N/A cam and they have done me well even if they cost more than anyone else, I know they are the best at what they do

Tom

[TomsSVX]

The valves, springs, and retainers I chose you can find here... http://www.briancrower.com/makes/subaru/ej205.shtml

Tom

[STeeL25T]

Delta Cams wants 200 dollars per cam for a regrind and they have EG33 experience.

[SilverSpear]

One spring? What did EFILogics use in their engine? It was a dual spring... no?

[TomsSVX]

Originally Posted by STeeL25T

Delta Cams wants 200 dollars per cam for a regrind and they have EG33 experience.

yes but not a lot of profiles to chose from. Web was much better at getting a profile for the specifics of the engine I am building. Delta I have used in the past but they seemed pretty reluctant to deal with a custom profile for me this time so I used Web instead. Expect close to $1700 for a set from Web but they are very good at what they do. Jack Chose Web for the same reason I did.

Tom

[TomsSVX]

Originally Posted by SilverSpear

One spring? What did EFILogics use in their engine? It was a dual spring... no?

No, the EJ series valves take a single spring... I mean you can get near an inch of valve lift with the Crower springs with no modifications.... What more could you ask for??

Tom

[the_paynter]

Originally Posted by TomsSVX

The valves, springs, and retainers I chose you can find here... http://www.briancrower.com/makes/subaru/ej205.shtml

Tom

Thanks for the info tom, very helpful.

These will probably be what I pick up, I have always used supertech valves and springs but I put BC cams in my last build and really liked them (272/272 duration) so I will probably be making the jump to their valvetrain.


As for the cams, Im not sure which ones I will go with but the DELTA ones being half the price is very temping to me as the GF's cheapness is starting to rub off on me. That being said I want to have a motor built for a ridiculous amount of power (ordering a Precision Billet 6765 turbo in the next few weeks to replace the current 60-1)


My other question is.... since we can use EJ22 rods, bearing, and pistons, can we also use the EJ22 darton sleeves?

[TomsSVX]

Originally Posted by the_paynter

Thanks for the info tom, very helpful.

These will probably be what I pick up, I have always used supertech valves and springs but I put BC cams in my last build and really liked them (272/272 duration) so I will probably be making the jump to their valvetrain.


As for the cams, Im not sure which ones I will go with but the DELTA ones being half the price is very temping to me as the GF's cheapness is starting to rub off on me. That being said I want to have a motor built for a ridiculous amount of power (ordering a Precision Billet 6765 turbo in the next few weeks to replace the current 60-1)


My other question is.... since we can use EJ22 rods, bearing, and pistons, can we also use the EJ22 darton sleeves?

I would never use 2.2l pistons... ever. The combustion chambers are very different and thus effects the entire combustion process.

99% of the time, if it is a cheaper route... its not the better route. just remember that. When a piece of piston lets go and take out the turbo and the cyl head you put all the money into.

Tom

[the_paynter]

Originally Posted by TomsSVX

I would never use 2.2l pistons... ever. The combustion chambers are very different and thus effects the entire combustion process.

99% of the time, if it is a cheaper route... its not the better route. just remember that. When a piece of piston lets go and take out the turbo and the cyl head you put all the money into.

Tom

I wasn't going to use OEM ones. I was just told that the cylinders are the exact same bore and stroke as the EJ22, just 2 extra cylinders added. I had a set of 6 wiesco pistons set up but If they aren't going to be any good then im glad i know now. Does the same go for the rods and bearings?

I am not one for cheaping out on builds, I was just wrongfully informed. Thanks again for the heads up!

[STeeL25T]

Thats all correct but there is a difference somewhere else, I'm guessing with the heads. You'll get terrible compression if you use them.

[TomsSVX]

Yes the heads are where the difference is. The bearings and rods are good to take-off for the EG33.

Tom