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Old 09-12-2002, 10:02 AM   #1
acorreiajr
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Default 2.5l DOHC Adjustable Cam gears - who makes them?

Hi,

Tried UR, AEM, HKS and they are not available.

Anyone knows where I can get them???

Thanks in advance,

António Correia Jr.
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Old 09-12-2002, 10:38 AM   #2
Marcin
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I doubt a product like that exist for our car. DOHC EJ25 only was used in RS for a year 98. Back then Rs wasnt too popular, so I doubt that cam gears exist. JDM WRX on the other hand has a few choices. I don't know if the gears from EJ20T will fit the EJ25.
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Old 09-13-2002, 09:51 AM   #3
acorreiajr
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Thanks Marcin

I really need them for my project

Anyone else???
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Old 09-13-2002, 01:19 PM   #4
skywalker
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Yeah I doubt they are being made at all. I have called a few places that sell them for the WRX, but they all keep saying they do not make them for the RS, SOHC or DOHC.

I have been looking but no luck as of yet. Tired contacting a few people in japan and no luck thier either. No one wants to make them either, as everyone tells me thier is not a big enough marker for them.

Though if someone finds them, do let us know. I need a set badly.
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Old 10-28-2002, 07:33 PM   #5
acorreiajr
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Great news!

Found them

The firm is based in Australia. I'll be happy to provide their contact to anyone who's interested (won't do it here as it may contravene the forum policies).

Cheers,

António Correia Jr.
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Old 10-29-2002, 03:29 AM   #6
HndaTch627
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i'm not exactly sure what you plan to accomplish by adjusting cam timing on a SOHC car in which the cam grind is not all that great. if you care to spend your money in the proper direction get a set of cams.

and FWIW adjustable cam gears on 99% of PROPERLY built vehicles are just for show

Just my $.02

Jeremy
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Old 10-29-2002, 03:39 AM   #7
skywalker
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acorreiajr,

Pm'ed you...
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Old 10-29-2002, 04:47 PM   #8
Darshu
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Jeremy- He wants them for the DOHC 2.5 FWIW, I'm curious to know where they came from too.
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Old 10-29-2002, 05:28 PM   #9
acorreiajr
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skywalker, YHM

Jeremy,

As Darshu said, I will be fitting the cam gears on a DOHC 2.5.

The engine has been heavily modified and I have great expectations for it. In my opinion, the gears should be quite usefull when tuning the engine on the dyno.

Hope to post some comments here when I receive the full package (engine is being prepared in Australia).

António Correia Jr.
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Old 10-29-2002, 11:30 PM   #10
Marcin
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Good job finding them
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Old 10-30-2002, 12:57 AM   #11
8Complex

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Just post the information up here for all to get in case they want some as well and search back for it in the future.
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Old 10-30-2002, 01:42 AM   #12
MissingOrgin
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As I recall DOHC were on the 98-99 RS models. I was told MY99 RS had DOHC. 00-01 went to the SOHC. Good find acorreiajr! I may need that info in the near future.
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Old 10-30-2002, 01:47 AM   #13
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98 RS are the only DOHC. I believe the Legacy 99 had DOHC.
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Old 10-30-2002, 02:09 AM   #14
MissingOrgin
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skywalker: My bad, I did some research on the MY99 your right SOHC. Blah I should of checked instead of repeating the crap I was told about the MY99 RS. I found an article on a MY99 motor.
http://www.cobbtuning.com/tech/sohc/

Don't whip my arse so hard next time.
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Old 10-30-2002, 03:12 AM   #15
HndaTch627
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Quote:
Originally posted by Darshu
Jeremy- He wants them for the DOHC 2.5 FWIW, I'm curious to know where they came from too.
doh, my bad, misread what it said...sorry i retract my statement. In your case i understand why you are getting them, DOHC cams are rediciclously expensive.

jeremy
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Old 10-30-2002, 05:10 AM   #16
acorreiajr
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OK, I just did not want people to think I was acting on behalf of a vendor.

For the record, this is the site:

http://www.pms.net.au

They can source some cam gears from Japan, and are currently developing some of their own.

As I understand the 2.5 DOHC was only produced for the Impreza in 1998. I don't know why they changed it to SOHC in the following years.

In Portugal we get two Impreza versions: 1.6l and 2.0 turbo (218 ps - the one I have).

When I started this project I first thought of a stroker kit, then a 2,2l block, but finally I came across the 2.5 DOHC.
I'll be fitting a huge turbo, so the extra capacity can give me better driveability (at least, I expect so...).

António Correia Jr.
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Old 10-30-2002, 02:14 PM   #17
HndaTch627
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this company is inSANE!!!

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Old 10-30-2002, 05:05 PM   #18
rocketman1
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W-T-F Gomer? What is that mess under the hood
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Old 10-31-2002, 03:09 AM   #19
HndaTch627
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Quote:
Originally posted by rocketman1
W-T-F Gomer? What is that mess under the hood
a full twin turbo EJ25 pushing 500 hp and running 10.7's according to the page
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Old 10-31-2002, 02:23 PM   #20
FuJi K
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first of all........can someone provide info on how retarding the cam or advancing the cam effects the engine performance?

Type of engine performance:
Turbo vehicles,
NA,
Nitrous injected

Thanks!
FuJi
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Old 10-31-2002, 03:16 PM   #21
HndaTch627
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changing cam timing on a DOHC is the easy way to eliminate valve overlap. even though the true problem exists in the cam shafts design as a whole. Valve overlap allows boost to be blown out the exhaust valve and allows hot exhaust to remain in the combustion chamber therefore increasing combution chamber temps and EGT's. This also costs you HP. Say you had a car that had 6 degrees of overlap(like the stock RS), you'd want to shift the exhaust side advaced 5-6 degrees to eliminate the overlap. the problem is that you can't just do it and assume it works, because there is a sweet spot int he power band with them. The true fix is to pick up a set of cams but at $800 for the intake set i understand why he wants a $200 set of cam gears.

jeremy
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