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Old 08-22-2006, 12:42 AM   #1
brandonbeeb
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Default 2.0L with forged pistons and rods

Hey guys over the winter i want to build my stock 2.0L block, and nope i dont want to go with a 2.5L. If i was to put forged pistons and rods what kind of power would the block be able to take? id like to aim for 350whp and would go with an 18g turbo possibly or a gt30 depending on the funds. Just want to know really if the block with these mods will hold up and what kind of psi's i could push out of it. I know that some head work would have to be done like cams, titanium valve springs and head studs.
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Old 08-22-2006, 01:41 AM   #2
gc835
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yes it will. get the crank balanced and polished new bearings, rods pistons should de good for like 500.http://forums.nasioc.com/forums/show...ighlight=ej205 check this out. im about to do the same thing. im going with eagle or scat forged rods and mahle pistons with cosworth bearings. i like 2.0s too. if balanced well andif the valve train can take it you should be able to spin it till 8k or so. that would be nice. pm me if interesred in scatt or mahle stuff
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Old 08-22-2006, 08:10 AM   #3
brandonbeeb
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what kind of headwork and i going to need to be able to get to 8k? also why do people tend to go 2.5 L instead of building a 2.0L like the Sti over seas. you can get pistons and rods for like 800 bucks
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Old 08-22-2006, 10:13 AM   #4
gc835
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well the 257 blck is semi closed and your 205 is an open deck. in theory the semi closed engine will hold more boost. the jap 2.0 is a 207 and is also semiclosed.im looking for like 350-400 hp so for our needs the 205 is fine. just make sure the bottom end is balanced very good. as for head work at a min you would need springs and retainers to saftly rev that high. im going with the supertech stuff its cheap and good quality.
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Old 08-22-2006, 12:59 PM   #5
brandonbeeb
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supertech??? what do they make? to balance the bottom whatkind of items do i need and overall what kind of price am i looking at>?
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Old 08-22-2006, 01:05 PM   #6
gc835
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supertech makes valves and springs retainers etc, machine shop balances the bottom end. price varies on the current shape of the block and the shop but like 500-1000 if that
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Old 08-22-2006, 01:18 PM   #7
brandonbeeb
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what if i dont get it balance but go with the forged rods, pistons and soem head work could i get 350whp out of the block reliable with an 8k or even 7.5 k rev
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Old 10-26-2006, 12:12 PM   #8
Suberman
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bump...i'd like to know as well.
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Old 10-26-2006, 12:29 PM   #9
brandonbeeb
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im just interested in building the bottom end now to hold some boost like a 2.0l sti block
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Old 10-26-2006, 12:30 PM   #10
Token-Negro
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I just posted the identical thing, Mahle dont make pistons for the 205 yet i was told.
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Old 10-26-2006, 12:46 PM   #11
dibblejr
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Much easier and probably cheaper to do a ej257 hybrid build, especially if you want reliability.
But its your money, I see you blowing it up in a short time.
If your looking for more boost with your ej20 just add alky/water and take your boost to much higher levels.

jay-R
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Old 10-26-2006, 01:01 PM   #12
mick_the_ginge
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been there, done that, just buy mine:- http://forums.nasioc.com/forums/show....php?t=1110946
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Old 10-26-2006, 01:07 PM   #13
Token-Negro
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Quote:
Originally Posted by mick_the_ginge View Post
been there, done that, just buy mine:- http://forums.nasioc.com/forums/show....php?t=1110946
Yeah Mick that motor is perfect. If i had the $$ it would already be in my car.
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Old 10-26-2006, 01:20 PM   #14
mick_the_ginge
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The first time I built up a 2L it was for almost the same reason as above, I wanted to make reliable 350 WHP with a GT30R .63 exhaust. I did that, but I wanted more. Power is so much easier to make with a 2.5L block, I can never go back to a 2L now, not in my street car anyway.
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Old 10-27-2006, 01:47 PM   #15
Suberman
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Quote:
Originally Posted by Token-Negro View Post
I just posted the identical thing, Mahle dont make pistons for the 205 yet i was told.
yes they do.

http://www.importperformanceparts.ne...ak-subaru.html
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Old 10-27-2006, 02:02 PM   #16
Gruppe-S
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We sell the fully built 2.0 for $1599. We can stroke it to 2.2 for you for another $500

Cheers,

Gary
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