2.5L Motor Buildup pics
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Paul,
Here is what happened to my cylinder #4 after only 6psi!!! Kinda looks familiar....
If possible can you send me your specs on the J&E pistons??? I'd like to avoid the problems with them if possible! Where did you buy your rods? I might as well do them at the same time.(bradyg@innovativelogic.com)
Thx, Greg
Here is what happened to my cylinder #4 after only 6psi!!! Kinda looks familiar....
If possible can you send me your specs on the J&E pistons??? I'd like to avoid the problems with them if possible! Where did you buy your rods? I might as well do them at the same time.(bradyg@innovativelogic.com)
Thx, Greg
Last edited by ej25; Apr 19, 2003 at 04:01 PM.
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Hey Greg,
As far as the specs on the pistons, JE now has the proper ones, be sure to specify that it is a phase II motor. The rods are from Pauter and I purchased them direct, best way, ask for Don, he helped me very much with my rods. I needed to have the top ridge by the wrist pin shaved a little to clear the pistons, but Pauter is extremely reliable in making sure you are happy with the product, and needless to say came out gorgeous, I highly recommend them. Don is a great guy to deal with.
As for your #4, looks very familiar. I didn't take a pic of something I noticed on the heads the other day, I forgot the camera again tonight, (dang it), so I wont have pics til at least monday, cause my friend is busy tomorrow. Anyways, I took a look at the head and noticed that the #2 piston (and the rest, but the number 2 most obviously) was actually fully streching, and smacking the head. The head has a slight indentation rings counter to the outer edge of the piston. I also noticed and you can see from my pics that the head damage is inverse to the damage in the piston. So basically I was knocking the pistons into the head pretty bad. However I would like to point out, that the metal on the heads was slightly indented, yet the head gasket remained fully sandwiched between the head and block. Upon draining the fluid there was no oil present, as well as absolutely no damage to the head gasket. I think this is a bit of a testament to the strength of the head gasket in the subaru motor as well as the head bolts. Although many recommend the studs for the heads, I think they may prove to be more of a novelty, I'd be very interested to see some actually test numbers of aftermarket studs vs. OEM bolts. I'm one for proof as opposed to some 'clowns' opinion. I've dealt with too many people that 'know what they are talking about' that really have no clue what physics is.
So end of the story is, I'm not saying anything about which is better, just saying I'd like to see some actual testing.
-Paul
Yeah, Sorry about that, I tend to get sidetracked and long winded (you should see my nasioc post on why the wrx td04 turbo is too small for the ej25, it's a prime example, but recommended reading)
As far as the specs on the pistons, JE now has the proper ones, be sure to specify that it is a phase II motor. The rods are from Pauter and I purchased them direct, best way, ask for Don, he helped me very much with my rods. I needed to have the top ridge by the wrist pin shaved a little to clear the pistons, but Pauter is extremely reliable in making sure you are happy with the product, and needless to say came out gorgeous, I highly recommend them. Don is a great guy to deal with.
As for your #4, looks very familiar. I didn't take a pic of something I noticed on the heads the other day, I forgot the camera again tonight, (dang it), so I wont have pics til at least monday, cause my friend is busy tomorrow. Anyways, I took a look at the head and noticed that the #2 piston (and the rest, but the number 2 most obviously) was actually fully streching, and smacking the head. The head has a slight indentation rings counter to the outer edge of the piston. I also noticed and you can see from my pics that the head damage is inverse to the damage in the piston. So basically I was knocking the pistons into the head pretty bad. However I would like to point out, that the metal on the heads was slightly indented, yet the head gasket remained fully sandwiched between the head and block. Upon draining the fluid there was no oil present, as well as absolutely no damage to the head gasket. I think this is a bit of a testament to the strength of the head gasket in the subaru motor as well as the head bolts. Although many recommend the studs for the heads, I think they may prove to be more of a novelty, I'd be very interested to see some actually test numbers of aftermarket studs vs. OEM bolts. I'm one for proof as opposed to some 'clowns' opinion. I've dealt with too many people that 'know what they are talking about' that really have no clue what physics is.
So end of the story is, I'm not saying anything about which is better, just saying I'd like to see some actual testing.
-Paul
Yeah, Sorry about that, I tend to get sidetracked and long winded (you should see my nasioc post on why the wrx td04 turbo is too small for the ej25, it's a prime example, but recommended reading)
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Newest pics are now up, check them out http://www.cti-club.com/forum/viewtopic.php?p=712#712
This is the current state of the project.
-Paul
This is the current state of the project.
-Paul
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Nice pics Paul, looks like the project is going great! I recently finished my STI IV conversion.
Here is a link to my pics: http://www.innovativelogic.com/car/index.html
Here is a link to my pics: http://www.innovativelogic.com/car/index.html
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