Big, dumb, stupid NA ej motors? (attn seagull)

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 11 May 2010, 9:02 pm

#778030

Is anyone building em?

What would it take to get an EJ25 NA to pull 8000rpm and 300hp on premium pump fuel?

What stroker cranks/big bore pistions are available for them?

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

JVLRacing Custom Title Time!

1,100 posts · joined Mar 2007 · 11 May 2010, 9:14 pm

#778038

A good question for seagull for sure.....

I would start with head work and manifold...

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 11 May 2010, 9:22 pm

#778041

pete wood wrote:Is anyone building em?

What would it take to get an EJ25 NA to pull 8000rpm and 300hp on premium pump fuel?

What stroker cranks/big bore pistions are available for them?

haha...they produce bugger all in standard form, good luck in getting those numbers !

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 11 May 2010, 9:48 pm

#778053

Torrens: Well you should know about motors that produce "bugger all". You've got a shed full of em! 😂

JVL: i've heard the heads flow great numbers standard, so surely cams would be the first things... which unfortunately means instant aftermarket ECU. Then yes, some ITBs... mmmm, ITBs...😎

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 11 May 2010, 9:53 pm

#778057

Pete, they punch 200hp stock with only aftermarket management
300 might be aiming a bit high staying N/A but i reckon you could get close by bumping up the CR, bigger injectors, some decent headwork, better cams, port the intake and exhaust and get a well designed header system made up etc

alot of work though, do you really need that much power in a buggy?

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 11 May 2010, 10:26 pm

#778072

"need" is an interesting word. "want" is probably closer. 😀

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 11 May 2010, 11:34 pm

#778090

pete wood wrote:Torrens: Well you should know about motors that produce "bugger all". You've got a shed full of em! 😂

😂........yeah but a garage full of performance vehicles 😎

Joel, are you talking atw or flywheel ?

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 11 May 2010, 11:48 pm

#778092

Think he's talking about those little japanese horsepowers. lol

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

mactaylor Custom Title Time!

1,005 posts · joined Aug 2007 · 12 May 2010, 6:40 am

#778098

good idea pete a stripped down ej 25 with ITB's would make for an interesting project heads have got plenty of meat for porting and aftermarket OS valves are cheapish, cams no probs, would sound great to!

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1800 552 123

rocknrob Insano Dub Head

844 posts · joined Dec 2003 · 12 May 2010, 7:12 am

#778105

SC14? why be pedantic about NA?

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 12 May 2010, 11:28 am

#778128

Simple rob. I can't go turbo/blown on my motor legally. Besides, NA motors are a different animal but they are still good fun.

I'm sure Craig and Matt would agree with me on that.

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 13 May 2010, 5:48 pm

#778379

Craig Torrens wrote:Joel, are you talking atw or flywheel ?

one would think flywheel with those kinda figures but i cant see many of these subaru guys having their engines removed to be bench dyno'd so who knows

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 · 14 May 2010, 12:22 am

#778468

Paul here in perth is building a 2.5 n/a motor ( 257 sti block ) sti con rods with 2009 legacy heads, plastic inlet manifold , mechanical throttle body, headers
I gave him a set of STI bug eye cams tonight, they fit the heads but need to check the lift ect
The ecu is a mega squirt, he is looking for 200+ hp

Looking for that special lady : PM me for coffee & cake

Klaus Custom Title Time!

1,439 posts · joined Aug 2004 · 15 May 2010, 11:39 am

#778688

i have a na ej25 dohc that needs rebuilding $150.00

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 · 15 May 2010, 3:16 pm

#778727

year ?

Looking for that special lady : PM me for coffee & cake

Klaus Custom Title Time!

1,439 posts · joined Aug 2004 · 16 May 2010, 7:03 pm

#778959

97 with reco heads but stupid previous owner ran it with rad pipe leaking so blew headgaskets again