Ej257 block w/ ported WRX heads?

wRxbeater11 · 12-14-2003, 08:49 AM

Since my cly 4 is still dead I was planing on buying a STI block In a week or so and throwing her in my Suby. Anyway I've herd that with WRX heads they dont flow right, is this true? will it decrease power that much? I realy dont want to run into any problems while doing this install so if theres anything I should know about please inform me. How much Hp and torque would this setup give me? (estimated numbers) One more thing, a few months back i had my WRX heads ported at a machine shop so maybe this would help some?

-Melo

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mlambert · 12-14-2003, 01:31 PM

Its not that they wont work, youre just leaving alot of power on the table with the wrx cams. The fact that they are ported should help a fair amount.

HP depends on what turbo youre going to run. I wouldnt go with anything smaller than a VF22/old pe1820 size. You'll have more than enough torque to make a 5MT puke.

DanMan · 12-14-2003, 01:52 PM

Porting would be nice, but you'd be better served with a set of cams.

The USDM STI ones are $150 each (x4) and available at your dealer. They should
keep the motor from falling off at 5000rpm.

You've got to pull the cams out to change the heads anyway... so there is no extra labor involved. Money better spent IMO.

Dan

wRxbeater11 · 12-14-2003, 03:11 PM

$150 a cam? thats not to bad at all. Thanks alot guys for all your help =]

RiftsWRX · 12-14-2003, 03:39 PM

More to it then just the STI cams guys.

Just wait on that comment.. right now Ron over at Axis is measuring up what it takes to run them. It's not a "drop in" deal with those cams. You need valvetrain hardware for sure.

Jorge (RiftsWRX)
www.ProjectWRX.com

DanMan · 12-14-2003, 04:11 PM

Quote:

Originally posted by RiftsWRX
More to it then just the STI cams guys.

Just wait on that comment.. right now Ron over at Axis is measuring up what it takes to run them. It's not a "drop in" deal with those cams. You need valvetrain hardware for sure.

Jorge (RiftsWRX)
www.ProjectWRX.com

Any more specifics? Are we talking about something like a bucket conversion or a large fitment issue?

Thanks,

Dan

jarelee · 12-14-2003, 04:34 PM

OT: Is it useful to use STI cams on a 2.0 WRX motor? Would it help and keep the powerband past the WRX cam redline??

stickman · 12-14-2003, 08:59 PM

what about AVCS?

roybfr · 12-14-2003, 09:57 PM

To use the AVCS you would need an STi ecu.

Unless new info has come to light since sponaugle posted his cam thread the USDM STi cams are not a whole lot bigger the USDM WRX cams if at all, they are practically the same size just slightly higher lift.

There is another guy who put in a EJ257 with poted heads and he seemed to be pretty happy.

12-14-2003, 08:49 AM	#1
wRxbeater11 Scooby Specialist Member#: 12682 Join Date: Nov 2001 Chapter/Region: Tri-State Location: Farmingdale, 07727	Ej257 block w/ ported WRX heads? Since my cly 4 is still dead I was planing on buying a STI block In a week or so and throwing her in my Suby. Anyway I've herd that with WRX heads they dont flow right, is this true? will it decrease power that much? I realy dont want to run into any problems while doing this install so if theres anything I should know about please inform me. How much Hp and torque would this setup give me? (estimated numbers) One more thing, a few months back i had my WRX heads ported at a machine shop so maybe this would help some? -Melo * Registered users of the site do not see these ads.

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12-14-2003, 01:31 PM	#2
mlambert Scooby Guru Member#: 13831 Join Date: Jan 2002 Location: 99 problems but a bitch aint 1	Its not that they wont work, youre just leaving alot of power on the table with the wrx cams. The fact that they are ported should help a fair amount. HP depends on what turbo youre going to run. I wouldnt go with anything smaller than a VF22/old pe1820 size. You'll have more than enough torque to make a 5MT puke.

12-14-2003, 01:52 PM	#3
DanMan Scooby Specialist Member#: 5009 Join Date: Mar 2001 Location: Los Angeles	Porting would be nice, but you'd be better served with a set of cams. The USDM STI ones are $150 each (x4) and available at your dealer. They should keep the motor from falling off at 5000rpm. You've got to pull the cams out to change the heads anyway... so there is no extra labor involved. Money better spent IMO. Dan

12-14-2003, 03:11 PM	#4
wRxbeater11 Scooby Specialist Member#: 12682 Join Date: Nov 2001 Chapter/Region: Tri-State Location: Farmingdale, 07727	$150 a cam? thats not to bad at all. Thanks alot guys for all your help =]

12-14-2003, 03:39 PM	#5
RiftsWRX Scooby Guru Member#: 6124 Join Date: Apr 2001 Chapter/Region: MWSOC Location: Glendale Hts, IL, USA Vehicle: 2000 NFR AP1 S2000 '07 Honda FIT sport (5MT)	More to it then just the STI cams guys. Just wait on that comment.. right now Ron over at Axis is measuring up what it takes to run them. It's not a "drop in" deal with those cams. You need valvetrain hardware for sure. Jorge (RiftsWRX) www.ProjectWRX.com

12-14-2003, 04:34 PM	#7
jarelee Scooby Specialist Member#: 31506 Join Date: Jan 2003 Location: Pasadena, CA Vehicle: 05 Tacoma on TE37' White	OT: Is it useful to use STI cams on a 2.0 WRX motor? Would it help and keep the powerband past the WRX cam redline??

12-14-2003, 08:59 PM	#8
stickman Scooby Specialist Member#: 13890 Join Date: Jan 2002 Chapter/Region: TXIC Location: DFW Vehicle: 2007 Mazda CX 7 Icy Blew	what about AVCS?

12-14-2003, 09:57 PM	#9
roybfr Scooby Specialist Member#: 14456 Join Date: Jan 2002 Chapter/Region: MWSOC Location: WDM Iowa Vehicle: 09 BMW 335i Sedan 69/72/01 Corvettes	To use the AVCS you would need an STi ecu. Unless new info has come to light since sponaugle posted his cam thread the USDM STi cams are not a whole lot bigger the USDM WRX cams if at all, they are practically the same size just slightly higher lift. There is another guy who put in a EJ257 with poted heads and he seemed to be pretty happy.