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Posted: Thu Jan 19, 2006 5:11 pm
by Matt Monson
Tyler,
I've got the same feeling in my gut, and should probably listen to it. Plus I don't know how I would handle the oil return from the SC without damaging those gorgeous golden valve covers.
And yes, there are two Impreza project for sale down here right now. Check the classifieds on Pirates. They may have sold, but as of yesterday they both were still officially available...
Posted: Thu Jan 19, 2006 10:45 pm
by bmxpunk
Yeah the oil return is the reason that I want wrx heads over the 2.5sohc heads. on the rs-t we just did, the kid brazed a bung onto his oil pain for oil return from his turbo.
Cool, I might come down sunday, I have to deliver a radiator to dzx.
I wont be driving the tempo this time though, HAHAHAHA
Posted: Fri Jan 20, 2006 12:53 am
by Matt Monson
bmxpunk wrote:Yeah the oil return is the reason that I want wrx heads over the 2.5sohc heads. on the rs-t we just did, the kid brazed a bung onto his oil pain for oil return from his turbo.
Cool, I might come down sunday, I have to deliver a radiator to dzx.
I wont be driving the tempo this time though, HAHAHAHA
Well, for the SC, the return goes into the valve cover just short of the timing belt. The kit already has a boss tapped and placed on an Ej25 SOHC valve cover. Really, to install the kit, I just need to put cams into the heads, and drop the complete engine into the car and bolt up the kit. Should take me most of a day to get it done.
Call me when you are on your way down. I have to work for a few hours in the morning, but should be home midafternoon...
Posted: Fri Jan 20, 2006 2:23 am
by bmxpunk
sounds good. then you can se my (semi-hack) impreza
Posted: Fri Jan 20, 2006 6:03 pm
by Matt Monson
ok then. Just make sure you still have my number. If you don't still have it, PM me before the end of business and I will get it to you...
Posted: Sat Jan 21, 2006 3:22 am
by hackish
People like to piss on the EJ25 as being a weak motor. I've successfully tuned them to 15 PSI and they've run for years without a problem. A lot of it is in the tuning. I certainly don't recommend cranking them that high but it is quite possible. If you pull out the innards and look at them they're really not that bad for being beefy.
-Michael
Posted: Mon Jan 23, 2006 5:39 pm
by Matt Monson
hackish wrote:People like to piss on the EJ25 as being a weak motor. I've successfully tuned them to 15 PSI and they've run for years without a problem. A lot of it is in the tuning. I certainly don't recommend cranking them that high but it is quite possible. If you pull out the innards and look at them they're really not that bad for being beefy.
-Michael
I concur. I am not going to turn the boost up on this one until I have some really solid EM to tune the fuel and timing. Tuning is everything...
Posted: Tue Jan 24, 2006 1:10 am
by 555BCTurbo
Matt Monson wrote:
Tuning is everything...
+1
Posted: Tue Jan 24, 2006 5:56 pm
by Matt Monson
the blower...
The AWIC and valve cover tapped for oil return...
And the front mounted heat exchanger...
And the recipient...
Posted: Tue Jan 24, 2006 9:41 pm
by bmxpunk
so you didnt use the rsra heads?
i am coming this friday and I cant wait to see it!!
Posted: Tue Jan 24, 2006 10:15 pm
by Matt Monson
Doh! I leave for Utah Friday morning.
I am going to use Ej25 heads. Now the bottom end is in question. Closed deck Ej20G or Ej251 yet to e determined...
Posted: Sat Jan 28, 2006 2:43 am
by Legacy294
Although the 2.5 has more torque, the EJ20g would be a better starting point from an internals standpoint, as well as having the closed deck..
Once you get that S/C set up tuned, you'll be able to cram far more boost into the the "G" without worry..The guts are far better siuted for what you are doing.
Seen waaaay too many 2.5s (hundreds) fail without forced induction to trust them for long under boost.
