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Old 12-03-2003, 09:52 AM   #1
smacksube
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Default Anyone Dynoed A Built EJ25?

i was just wondering if anyone with a built or even modified n/a ej25 has taken it to the dyno. i see posts here and there about built ej25's running low 14's, but i think if it's built smart 14's would be a bad run.
hopefully within the next 4 months i'll be able to post up a dyno sheet of my 2.5. i'm shooting for the neighborhood of mid 200 hp.
we'll see.
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Old 12-03-2003, 10:40 AM   #2
Patrick Olsen
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What all are you having done. Does "mid 200hp" = 250hp?

I've dyno'd at about 40hp over stock. I think dcoty's dyno results were another 15 or 20hp higher, and I don't think he had really done much tuning yet.

Pat Olsen
'97 Legacy 2.5GT sedan
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Old 12-03-2003, 11:35 AM   #3
White2.5GT
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Patrick could you remind us of what you have done to your car again?
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Old 12-03-2003, 11:43 AM   #4
Matt Monson
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http://forums.nasioc.com/forums/show...hreadid=457339

Here,
read this thread. It gives you Dan's dyno #'s. Without changing the manifold on an EJ25 13's are going to be really really hard to get. And 250hp? Highly unlikely...Talk to me in a few months and I'll give you my dyno numbers. Just gotta wait for Cobb to finish the build...
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Old 12-03-2003, 02:13 PM   #5
smacksube
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well....i'm 95% confident i can tweak the crap out of my build and get in the neighborhood of 250. only time will tell....then i'll bring this back up with my dyno sheets.

and who's dan? i didn't see any dyno sheets on that last post, only a link to some decent times.
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Old 12-03-2003, 03:38 PM   #6
Matt Monson
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He didn't post the sheet, though you might find it in the database around here somewhere. IIRC he's making 161 at the wheels, which I figure to be +/- 225 at the crank.

But hey if you can get it there without replacing the manifold. I have had both Cobb and TWE tell me 250 is real unlikely on that stock manifold. I too am looking to hit that magic number, so keep us up to date on your build and what works for you.
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Old 12-03-2003, 04:36 PM   #7
dcoty
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Yeah, its not going to be easy at all. The manifold is going to keep our motors at bay. Im building an intake manifold and it should be completed by xmas, and dynod soon thereafter to re-tune the car. nothing has really been missed on my build and I was didappointed with my times and numbers so far. Its the manifold that prevents the motor from making more power. Good luck!
Dan
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Old 12-04-2003, 12:11 AM   #8
smacksube
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oookay...peddle your wares elseware.....

as for the manifold...i had not intentions of keeping the stocker, i'm actually working on a custom one also...IIRC the stock one flows max somewhere areound 280 cfms, which is near the max flow of exhaust gas out the head. i think i got that off cobb's site, i'm not sure.

thanks for the input guys

-eric
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Old 12-04-2003, 01:52 AM   #9
Patrick Olsen
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Quote:
Originally posted by White2.5GT
Patrick could you remind us of what you have done to your car again?
Cobb Stage 1 DOHC heads, Cobb Street cams, Injen CAI, MRT full exhaust, S-AFC, Fidanza aluminum flywheel.

Pat
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Old 12-04-2003, 02:08 AM   #10
Kostamojen
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250hp will be difficult to say the least, not to mention very expensive. I'd say start with a JDM DOHC AVCS EJ25 instead of going with the USDM EJ25 to get to that point.
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Old 12-04-2003, 03:13 AM   #11
smacksube
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not very expensive...i've got a bit of fortunate ins on local machine shops and custom automotive shops.

and i don't see how getting a jdm ej25 with avcs is going to start me off in a better position....first off how much would i drop getting that thing over here, and...i'm not going to be able to get custom avcs cams that'll A)not cost as much as they're weight in gold and B)be trust worthy.

in a few months you can either say i told you so or daaaaaamn
lol
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