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Old 04-08-2002, 09:33 AM   #1
Chapel
Scooby Specialist
 
Member#: 3496
Join Date: Jan 2001
Chapter/Region: NESIC
Location: Salem, MA
Vehicle:
1995 Roadmaster
Beige

Default 98 EJ25 vs all other EJ25s

now, from what I read in GRM, the 98s had a DOHC engine and the later ones had a SOHC
ALL 90s+ Subarus are 16V (or 24V for the H6s), yes?

Im wondering because I found a few 98 2.5RSs, and I was wondering if having the DOHC was a good thing or a bad thing.
is there any differences in the aftermarket between the two (exhaust, turbo kits, etc...) the obvious aftermarket difference would be the cams.
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Old 04-08-2002, 10:56 AM   #2
HomerJay
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Member#: 1135
Join Date: Mar 2000
Chapter/Region: BAIC
Location: BAICED
Vehicle:
2005 WRX WAGON
Silver

Default

Usually the DOHC is a good thing to have, but if you are planning to do any mods to the engine, parts are not as readily available as they are for the MY2000-01 models. Also the MAF on the car is quite weak and prone to failure.
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Old 04-08-2002, 12:09 PM   #3
AJ711
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Member#: 6178
Join Date: Apr 2001
Chapter/Region: MAIC
Location: Singletracks
Vehicle:
98 GM67 + 03 SG6
2 whls > 4 whls

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From what I've heard, and experienced, the MAF is more stable on the MY98's than the MY99's. The film on the 99's is more prone to blowing than the 98's. That is just what a Subaru Tech told me when we were installing my exhaust, cause I have a moded JCS CAI using parts from Larry Ganz for my '98.

I'm not entirely sure about it, as I've heard both sides, but mine hasn't had any problems since December/January.
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Old 04-08-2002, 12:11 PM   #4
Chav
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Member#: 3269
Join Date: Dec 2000
Chapter/Region: SCIC
Location: San Diego
Vehicle:
2001 2.5RS Sedan STM
RSTi

Default

Look into the head gaskets on the 98s with a turbo. I remember hearing that 98 engines and turbo dont mix well.

-Chav
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