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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 03-02-2012, 10:29 AM   #29
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Wonderful set of pictures. Looks like a very simple set-up. Thanks!

I'm still puzzling through the Google translation... can't imagine how hard it must be to decipher Google's Japanese translations from technical English...
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Old 03-02-2012, 10:31 AM   #30
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Quote:
Originally Posted by OrbitalEllipses View Post
It's a boxer; anything in the engine bay is going to be a bitch.
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Originally Posted by OrbitalEllipses View Post
I hate plugs with a passion on boxers. Have't done plugs on a V8, but I hear they're a bitch too. The engine bays are always crowded on boxers, gotta take everything out to do anything. Or at least that's what working on the WRX felt like.
Should be easier for plugs. As above, you can remove the front wheels and fender liners to get to them. Unlike the AWD Subarus that have frame rails in the way.

Oil changes will be a breeze if Fumoto has a drain valve that fits this pan.

I am curious about how much oil the engine holds. That's a really shallow pan, maybe 3 quart? I think the BRZ might need frequent oil changes. I foresee a sythetic oil requirement and 3000mi oil changes.
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Old 03-02-2012, 10:39 AM   #31
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^You should be using synthetic oils anyway, I don't see why people use mineral oil for anything besides engine break-in anymore.

For the problems concerning the trans, although it would be a pretty intense and labour-induced fix, a good way to prep it for more power would be to have the gears hardened. That way you could have the same ratios with stronger gears that can take a bit more abuse. I also forsee a TRD gear-set coming to the market to handle extensive power mods.

As far as fitting a turbo goes, I think it will end up being far easier to have a SC kit built for this engine, but I'm not the expert there since I prefer NA anyways. Exhaust modifications look like they will be benificial to the power and reduced weight of the car too. A good titanium system that does not cross to the passenger side will likely be possible.

It is also nice to see they are using a hydraulic clutch system, I hate any other. Excited to start saving for the car!
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Old 03-02-2012, 10:43 AM   #32
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Originally Posted by JFC View Post
For me im liking the crank and short skirt pistons.

Just screams high rpm to me.

Also not liking the single drive belt for the access.

Timing belt looks like its a 8hr job to change.
It does not have a timing belt. It has a timing chain (no worries). Dan
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Old 03-02-2012, 10:56 AM   #33
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Stamped steel oil pan is a bit of a throwback. All my newer cars made have had cast aluminum.
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Old 03-02-2012, 11:10 AM   #34
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I believe you'll actually need to remove the front wheels to do these. You can see what looks like the coil packs on the side of the engine. After you remove the wheels, it looks like a breeze. Still more time consuming then a typical 4cyl.
I thought the same thing until I did some research, supposedly on Subaru boxers the plugs are accessible from the top of the engine not the heads like you'd expect on an inline car. I could be wrong but that's info I got from nasioc.

EDIT: found some DIY videos and it looks like you are right...they show you removing the coil packs & the plugs from the sides. Again this was my gut feeling not sure what I was reading on nasioc that made me think differently: http://forums.nasioc.com/forums/showthread.php?t=40501

Part of me assumed Subaru had some trick engine design that allowed for ease of maintenance, but I don't think any manufacturer truly cares about that, harder to work on means more money from maintenance.

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Stamped steel oil pan is a bit of a throwback. All my newer cars made have had cast aluminum.
I'd imagine this has something to do with such a low COG, instead of risking cracking an alloy pan they'd rather have you dent your steel pan. Seeing as how the engine is so low adding the extra few pounds at the bottom of the car wasn't an issue. All suspension arms look like they are steel as well for the same reason. Converting them to alloy would essentially raise the COG and hurt handling dynamics.
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That's it. I'm cancelling my pre pre-order.

Last edited by gt86mods; 03-02-2012 at 11:20 AM.
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Old 03-02-2012, 11:56 AM   #35
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I am looking on the photos and do not see ports for an oil cooler. Will there be one or provisions to install one?
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Old 03-02-2012, 12:00 PM   #36
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Aftermarket oil coolers usually come with a sandwich adaptor that goes between the engine and oil filter.

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Old 03-02-2012, 12:06 PM   #37
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Quote:
Originally Posted by gt86mods View Post
I'd imagine this has something to do with such a low COG, instead of risking cracking an alloy pan they'd rather have you dent your steel pan. Seeing as how the engine is so low adding the extra few pounds at the bottom of the car wasn't an issue. All suspension arms look like they are steel as well for the same reason. Converting them to alloy would essentially raise the COG and hurt handling dynamics.
Personally I feel this has more to do with cost saving than raising COG.
The benefits of being lighter and less unsprung weight should offset the slight(if there is any) increase of the COG.
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Old 03-02-2012, 12:24 PM   #38
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Smile

Quote:
Originally Posted by Dan Ruddock View Post
It does not have a timing belt. It has a timing chain (no worries). Dan
was about to ask if it has timing chain or belt then i read your post. it's great it has chain,
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Old 03-02-2012, 12:25 PM   #39
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Changing spark plugs will be a PITA. Hope they are good for 100k miles
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Old 03-02-2012, 12:37 PM   #40
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Quote:
Originally Posted by JFC View Post
For me im liking the crank and short skirt pistons.

Just screams high rpm to me.

Also not liking the single drive belt for the access.

Timing belt looks like its a 8hr job to change.
It has a timing chain; not belt. So you won't have to change anything but the accessory belt which shouldn't be too hard.

Also, spark plugs should last at least 60k. Maybe even 120k if the new Denso Iridiums Toyota uses can handle the higher output. In other words, you won't be changing them very often. And as other people have pointed out, it looks like you can take the front wheels off to access the spark plugs so that should be fairly easy.

Anyway, I'm glad we got these shots. This is just what I wanted to see. But I wish he would have taken more close ups of the individual parts. I want to know who makes each component like the shocks and pistons.
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Old 03-02-2012, 12:44 PM   #41
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guys, where is the timing chain then

the way i'm looking at the pics, it seems the cams are electronically controlled.
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Old 03-02-2012, 12:58 PM   #42
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guys, where is the timing chain then

the way i'm looking at the pics, it seems the cams are electronically controlled.
timing chain is in the front cover, you wont be able to see it unless you take apart the engine.
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