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Old 10-03-2006, 03:19 PM   #1
Zumble
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Default What's good about our motors?

So, what are some good qualities of or motors compared to other motors out there. I'd like to hear some bad and good points of the EJ25 engines. How does the EJ25 compare to other engines when tuned? I would love to hear from tuners who have tuned other engines and tell what they like and dislike about the subaru engines.

From a mechanical standpoint I'll throw in it's not as easy to change spark plugs on the flat motors. That's a negative for me.

I'd love to hear about how durable or not durable the EJ25 is compared to other engines.. ease of tuning etc.

Is the EJ25 something special? Or is it just another engine with a turbo on it?
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Old 10-03-2006, 03:37 PM   #2
RexFTW
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Please correct me if I'm wrong, but I am under the impression that the EJ25 is basically an opened up 2.0. The problem, as I understand it, is that part of the process involved boring some sleeve (using thinner sleeves) to achieve the displacement difference. In that situation, high boost = ovaling sleeves that create hot spots, I bet you can guess the rest... (hint: boom).

Seriously though, correct me if I am wrong but I am confident enough in the information to post it.
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Old 10-03-2006, 03:54 PM   #3
AZScoobie
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The only thing that I can think of that is positive is that the hood line can be lower and the weight of the engine is lower. Past that I cant really think of anything..

CLark
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Old 10-03-2006, 04:01 PM   #4
Zumble
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That's kind of what I thought. That's why I posted this. I was hoping I was wrong.

That brings me to asking you Clark.. Why do you tune so many subarus? Are subaru's a majority of your business?

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Originally Posted by AZScoobie View Post
The only thing that I can think of that is positive is that the hood line can be lower and the weight of the engine is lower. Past that I cant really think of anything..

CLark
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Old 10-03-2006, 04:03 PM   #5
bboy
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Center of gravity and internally counterbalanced. I think engineered for turborcharging from the factory + rally-turbo experience are benefits too.

I don't like the complexity that two heads causes and the crank oiling system.
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Old 10-03-2006, 11:30 PM   #6
JiveMasterT
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...the sweet symphony of unequal headers on a boxer motor...

That and the lower center of gravity making for a better handling, more balanced car.

I can think of lots of negatives but then again.... I can think of lots of negatives for all motors. The boxer design is a good one though and one of the reasons why I'm moving from the tall, inline 4 4G63 to the EJ25.
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Old 10-04-2006, 01:30 AM   #7
nhluhr
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Quote:
Originally Posted by AZScoobie View Post
The only thing that I can think of that is positive is that the hood line can be lower and the weight of the engine is lower. Past that I cant really think of anything..

CLark
well there's that nice feature of affording a longitudinal drivetrain which has massive benefits for traction and handling.
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Old 10-04-2006, 03:01 AM   #8
chowder31
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No giant transfer case like other AWD systems...like Mitsus. Seems like a more streamlined power to ground system.
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Old 10-04-2006, 03:11 AM   #9
AWD>FWD
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Nice AWD system, low hood line, and good center of gravity.

Plus it gets the bishes.
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Old 10-04-2006, 06:17 AM   #10
NewSTI
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Old 10-04-2006, 09:33 AM   #11
ride5000
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+ a comparatively short crankshaft.
- oil control in high g manouvers
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Old 10-04-2006, 01:50 PM   #12
HonduHunter
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Quote:
Originally Posted by AWD>FWD View Post
plus it gets the bishes.
best answer yet!!
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