realistic hp target ej205

ncarn8 · 10-14-2009, 02:00 AM

Hi all i have an ej205, MY00. It is currently stock as a rock, but will begin modding it. What i want to know is, generally speaking, at what hp level do things let go in the ej205? Can you get more from them than ej20G? What lets go first? Im just after a generally accepted hp ceiling based on all the blown up ones on here lol.
And also, how much more can you get from the ej207, with the MY00 heads?

Mods are being installed in this order and professionally tuned.
Fuel pump w/surge, exhaust, intake, turbo (vf 22 or 34 most likely) EM, front mount. If its holding up minor porting and sti v6 cams and another tune.
Thanks in advance

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ownnij · 10-14-2009, 10:05 AM

they say ej205 can handle up to 375whp and a few of us are just about right there. i've seen rods give out at the lower 300s so the question is quite debatable. most of us that are maxing out our ej205s are going in knowing our motors will blow up so it's no big deal. vf22 or vf34 will net you around 280whp so you should be fine, just as long as the tune is right on the spot.

shadowmd · 10-14-2009, 12:45 PM

you'll the like the power the bolt-ons a vf series turbo gives you. i have a vf34 on my 05 wrx and its nice. i'm always looking for more lol, but it's quick enough and still reliable (good enough for my daily)

GundamFan · 10-15-2009, 02:59 AM

If it helps you any my 02 WRX has been at 260whp since it had 60k on it, it now has 136k!

Byzantium · 10-15-2009, 07:21 AM

Quote:

Originally Posted by ownnij

they say ej205 can handle up to 375whp and a few of us are just about right there.

And who is "they"? Because "they" are a bit stupid. I wouldn't even run a stock EJ257 that high.

I'd be hesitant to go much over 315 whp on a 205. It won't instantaneously explode at that power, but you will eventually see its effects.

GDB FAN · 10-15-2009, 07:28 AM

Quote:

Originally Posted by Byzantium

And who is "they"? Because "they" are a bit stupid. I wouldn't even run a stock EJ257 that high.

I'd be hesitant to go much over 315 whp on a 205. It won't instantaneously explode at that power, but you will eventually see its effects.

Clark Turner.....pretty stupid guy huh.

Quote:

Originally Posted by Clark Turner

I have tuned 205s with Greens, reds, 30rs and 35rs many times. The trouble is the connecting rods. They tend to leave the block above 350ft lbs at the wheels. I have made 400 with some and they held. As for power, The motor starts to show its limitations around 375whp. Still. I have made 400whp with them many times. I just detune the trq by reducing boost and or reducing the timing. If you tune carefully, they will live. If its a high mileage motor, I would be a bit worried.

Clark

http://forums.nasioc.com/forums/show...3#post23948283

Byzantium · 10-15-2009, 07:35 AM

The same Clark Turner that ruined my motor?

People have made +500 whp on stock EJ257s, that doesn't mean they "start to show limitations" at 500 whp.

GDB FAN · 10-15-2009, 07:40 AM

zomg he ruined your motor now he's a complete dumbass right.

Byzantium · 10-15-2009, 07:42 AM

Quote:

Originally Posted by GDB FAN

zomg he ruined your motor now he's a complete dumbass right.

Mine and plenty of others. I've seen several bad tunes by him, not all that ended in disaster.

But this thread isn't about Clark.

69subaru360 · 10-15-2009, 09:20 AM

At 350 whp things start to let go, usually the rods. If you're good at tuning and avoid knock you can keep the pistons in one piece over 300 whp, but the rods have their limits.

ncarn8 · 10-16-2009, 07:31 AM

ok from this iwill align parts choice to suit a goal of 260whp max. That seems to be far enough away from the crunch time, but will be ebjoyable enough, and hopefully have some longevity. Than ks all!

jason miller · 10-16-2009, 12:21 PM

I think what Clark meant is that 375 whp is about as much power as you can make without race gas or a huge turbo. That's really about the limit of the stock ej205 heads/cams.

The reason most ej205's go would be spun bearings, which can't really be blamed on power output; but rather oiling issues. As far as power related failures go, the rods are the weak point.

rexblake · 10-16-2009, 01:52 PM

It all depends on the motor. Mine blew at 265whp, granted, that was a lower reading dyno, but still. I blew a rod out the top while on the freeway, 14xk on the engine.

The Phenx · 10-16-2009, 03:05 PM

I know its not eaxactly what you were asking...

127,000 miles with a Prodrive Stage 3 + other goodies dyno'd 259 WHP no worries.

Talk to a good builder/tuner.

Call Andrewtech...Talk to Turbo XS... I imagine between the two of them they could build you something silly.

Byzantium · 10-17-2009, 01:02 AM

You people are neglecting something important. I'm pretty sure the OP is more concerned with making reliable power with his engine more-so than how much power the car can make before it a catastrophic failure becomes imminent. Hence, the much lower answer.

JdMS13 · 10-17-2009, 04:36 PM

I'm stuck in the same situation, days from installing an 18g. After weeks of looking in these subaru forums I only here bad things happening with this setup and naturally am paranoid about blowing up my dd. What's a good piston/rod kit to get that's somewhat cheap and keeping factory displacement? Sorry for being off-topic, it was the closest topic thread I could find.

toconn · 10-18-2009, 08:02 PM

First I'd like to say that this is a difficult question to answer because there are so many variables. Quality of the tune, how the car is driven, what dyno you're talking about, how well the car is maintained, etc.

That said, from what I've read, it seems that once you're approaching 300whp on an average-reading dyno is when it stops becoming a question of "if" the engine will go, but rather "when" the engine will go.

JSarv · 10-19-2009, 01:51 PM

Again? Search...

There are quite a few of us moving in excess of 350 g/s on our stock 205's (over 350whp)

Fuel/tune/oil/plugs

/thread

There is no answer.

10-14-2009, 02:00 AM	#1
ncarn8 Scooby Specialist Member#: 71419 Join Date: Sep 2004	realistic hp target ej205 Hi all i have an ej205, MY00. It is currently stock as a rock, but will begin modding it. What i want to know is, generally speaking, at what hp level do things let go in the ej205? Can you get more from them than ej20G? What lets go first? Im just after a generally accepted hp ceiling based on all the blown up ones on here lol. And also, how much more can you get from the ej207, with the MY00 heads? Mods are being installed in this order and professionally tuned. Fuel pump w/surge, exhaust, intake, turbo (vf 22 or 34 most likely) EM, front mount. If its holding up minor porting and sti v6 cams and another tune. Thanks in advance * Registered users of the site do not see these ads.

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10-14-2009, 10:05 AM	#2
ownnij Scooby Specialist Member#: 70459 Join Date: Sep 2004 Chapter/Region: TXIC Location: Las colinas, TX Vehicle: 2002 AW Bugeye ej257 6spd, GT3076R, Alky & EWG	they say ej205 can handle up to 375whp and a few of us are just about right there. i've seen rods give out at the lower 300s so the question is quite debatable. most of us that are maxing out our ej205s are going in knowing our motors will blow up so it's no big deal. vf22 or vf34 will net you around 280whp so you should be fine, just as long as the tune is right on the spot.

10-14-2009, 12:45 PM	#3
shadowmd Scooby Specialist Member#: 193222 Join Date: Nov 2008 Chapter/Region: MAIC Location: Baltimore, MD Vehicle: 05 Wrx 1.5xtr 6spd 2.5 hybrid 367whp/363wtq	you'll the like the power the bolt-ons a vf series turbo gives you. i have a vf34 on my 05 wrx and its nice. i'm always looking for more lol, but it's quick enough and still reliable (good enough for my daily)

10-15-2009, 02:59 AM	#4
GundamFan Scooby Newbie Member#: 212204 Join Date: May 2009 Location: socal Vehicle: 2002 WRX	If it helps you any my 02 WRX has been at 260whp since it had 60k on it, it now has 136k!

10-15-2009, 07:35 AM	#7
Byzantium * Banned * Member#: 207826 Join Date: Apr 2009 Chapter/Region: MAIC Location: Katabatic Vehicle: 85k 2002 WRX Correct Fitment Crew #034	The same Clark Turner that ruined my motor? People have made +500 whp on stock EJ257s, that doesn't mean they "start to show limitations" at 500 whp.

10-15-2009, 07:40 AM	#8
GDB FAN Scooby Guru Member#: 105814 Join Date: Jan 2006 Chapter/Region: NWIC Vehicle: two V8's.. 'murica	zomg he ruined your motor now he's a complete dumbass right.

10-15-2009, 09:20 AM	#10
69subaru360 Scooby Guru Member#: 159682 Join Date: Sep 2007 Chapter/Region: NESIC Location: Belfast Maine Vehicle: 1995 WRX	At 350 whp things start to let go, usually the rods. If you're good at tuning and avoid knock you can keep the pistons in one piece over 300 whp, but the rods have their limits.

10-16-2009, 07:31 AM	#11
ncarn8 Scooby Specialist Member#: 71419 Join Date: Sep 2004	ok from this iwill align parts choice to suit a goal of 260whp max. That seems to be far enough away from the crunch time, but will be ebjoyable enough, and hopefully have some longevity. Than ks all!

10-16-2009, 12:21 PM	#12
jason miller Scooby Specialist Member#: 158313 Join Date: Sep 2007 Location: W Laf, In Vehicle: 2003 WRX PSM	I think what Clark meant is that 375 whp is about as much power as you can make without race gas or a huge turbo. That's really about the limit of the stock ej205 heads/cams. The reason most ej205's go would be spun bearings, which can't really be blamed on power output; but rather oiling issues. As far as power related failures go, the rods are the weak point.

10-16-2009, 01:52 PM	#13
rexblake Scooby Specialist Member#: 178426 Join Date: Apr 2008 Location: FoCo Vehicle: 2010 Evo X MRt Silver	It all depends on the motor. Mine blew at 265whp, granted, that was a lower reading dyno, but still. I blew a rod out the top while on the freeway, 14xk on the engine.

10-16-2009, 03:05 PM	#14
The Phenx Scooby Specialist Member#: 95823 Join Date: Sep 2005 Chapter/Region: MAIC Vehicle: 2003 Imprezza Wrx WRC BLUE	I know its not eaxactly what you were asking... 127,000 miles with a Prodrive Stage 3 + other goodies dyno'd 259 WHP no worries. Talk to a good builder/tuner. Call Andrewtech...Talk to Turbo XS... I imagine between the two of them they could build you something silly.

10-17-2009, 01:02 AM	#15
Byzantium * Banned * Member#: 207826 Join Date: Apr 2009 Chapter/Region: MAIC Location: Katabatic Vehicle: 85k 2002 WRX Correct Fitment Crew #034	You people are neglecting something important. I'm pretty sure the OP is more concerned with making reliable power with his engine more-so than how much power the car can make before it a catastrophic failure becomes imminent. Hence, the much lower answer.

10-17-2009, 04:36 PM	#16
JdMS13 Scooby Specialist Member#: 207299 Join Date: Apr 2009 Chapter/Region: MAIC Location: Downingtown, PA Vehicle: '02 vf39 6spd P.O.S Smashin' Jew Eggs	I'm stuck in the same situation, days from installing an 18g. After weeks of looking in these subaru forums I only here bad things happening with this setup and naturally am paranoid about blowing up my dd. What's a good piston/rod kit to get that's somewhat cheap and keeping factory displacement? Sorry for being off-topic, it was the closest topic thread I could find.

10-18-2009, 08:02 PM	#17
toconn Scooby Newbie Member#: 166656 Join Date: Dec 2007 Chapter/Region: NESIC Location: Connecticut / Massachusetts Vehicle: 2002 WRX Wagon Silver	First I'd like to say that this is a difficult question to answer because there are so many variables. Quality of the tune, how the car is driven, what dyno you're talking about, how well the car is maintained, etc. That said, from what I've read, it seems that once you're approaching 300whp on an average-reading dyno is when it stops becoming a question of "if" the engine will go, but rather "when" the engine will go.

10-19-2009, 01:51 PM	#18
JSarv Scooby Specialist Member#: 163445 Join Date: Nov 2007 Chapter/Region: MWSOC Location: Effingham IL (Central IL) Vehicle: l33t ******* 12.07@115.9mph-EJ205	Again? Search... There are quite a few of us moving in excess of 350 g/s on our stock 205's (over 350whp) Fuel/tune/oil/plugs /thread There is no answer.