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


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Old 09-19-2018, 10:59 PM   #1
86MLR
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2017 OEM block reinforcement

Anyone have any pics or solid info in this?

https://www.whichcar.com.au/news/201...anges-revealed

"Subaruís shot peened the engineís pistons and added ribs to the blockís rear wall to help it handle the new power"

From pub talk one guy said the 2017 uses a semi closed deck, another said it was reinforced elsewhere.

I'm just asking because I was looking at maybe boosting it a little.

But if it's a open deck that will mean a whole lot extra work for me to be happy doing it.

I did have a google and search, maybe my searching Kung Fu is weak, or I'm just old and senile.
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Old 09-21-2018, 03:45 AM   #2
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Found it, open deck.
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File Type: pdf 17MY_BRZ_1.pdf (7.83 MB, 100 views)
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Old 09-21-2018, 09:27 PM   #3
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Is there a guide like this for the 2018 MY BRZ tS version? I would like to know all the differences on the tS
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Old 09-21-2018, 09:35 PM   #4
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Is there a guide like this for the 2018 MY BRZ tS version? I would like to know all the differences on the tS
Very little difference from the PP. And the engine is the same for all the mtx versions 2017+.
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Old 09-22-2018, 07:19 AM   #5
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New power lol hahahaha now that's a joke , how bout adding some Fi and then adding the reinforcements


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Old 09-22-2018, 08:16 AM   #6
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New power lol hahahaha now that's a joke , how bout adding some Fi and then adding the reinforcements


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That's what the aftermarket is for.

I highly doubt they will charge it, that would put it in a higher price bracket.

The whole idea of the twins is that they are cheap sports car.

Charging it wouldn't be smart marketing for Toyota or Subaru, in reality it is only a small percentage of people who would buy one, which wouldn't make it financially viable IRT all the R&D and modifications required.

Look at the OEM turbo MX5, minimal extra power for alot more cash, not alot sold, Mazda only had them for a couple of years, they weren't financially viable.

And even the turbo MX5's ended up having alot of the OEM bolt ons replaced to chase more power.

How much would pay for a charged 86?

There are other cars available if you want more power anyway.

Subaru has the WRX/STI, they won't drop another car in that price bracket.

Toyota will soon have the Supra, 2 typical Toyota rwd turbo sports cars competing for sales is not going to happen.

If you want more power just build the motor and drivetrain to handle what you want and bolt on a supercharger or turbo, easy.

In the end, there ain't nothin to it but to do it.

Opinions may vary
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Old 09-22-2018, 08:30 AM   #7
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If a non Turbo one was 34k new I would pay 42k new for a Turbo one, big brakes. All it would need is a Tune (knowing Subaru loves to detune the crap out of the WRX) and the thing is a weapon. Light weight, Reliable OEM turbo engine no fuc$king around with Turbo kits and is my engine going to blow up because it cant take the power.
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Old 09-22-2018, 09:37 AM   #8
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As a previous owner of a "stage 2+" 2015 WRX STI, anything over 300hp can be a long term reliability issue.

For the twins to be reliable at 300hp all you need to do at look at what "experienced" builders/tuners consider required mods.

For me, to be happy with putting around 300hp with ??? torques to the ground in a twin, with what I would concider long term reliability, I'm looking at between 20 to 25k.

Sure you do it much cheaper, but how long will it last.

Now, bring in the added reliability required by the OEM manufacturer, they will need to warranty it.

Now your looking at upgrading the whole power and drivetrains, not to mention additional strengthening of the chassis.

All this for a small market of buyers.

Here in AU a Impreza costs 25k, a wrx cost 40k, thats 15k extra.

Here in AU a twin cost upwards of 40k, adding 15k to that would put it in STI territory.

I would love to see a OEM turbo twin, but when you bring costings, demand and the ability for a manufacturer to make the required profit to keep the manufacturers happy and rolling in profit, sadly I cannot see it ever happening.

Hence why I have been researching a build even before I purchased the car, give me another 6 months, and if I'm happy with my research and expected outcomes, I'll have my 300hp and ??? torques to play with.

If not, I'll flip it in a couple of years or give it to one of my kids, I'll then find some other toy to suit my new requirements and desires.
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Old 09-22-2018, 09:51 AM   #9
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If a non Turbo one was 34k new

am i missing something, i paid 30 out the door for my pp
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Old 09-22-2018, 11:51 AM   #10
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Feel like they could have just put 11-1 compression, maybe forged rods. And run 9psi and hit about 280hp on 93 reliably. And then have a 10-1 lbs-hp ratio from factory for about 32k msrp for base model manual. And it would be perfectly priced With good power from the factory.

I paid 28k for a 2017 - 86 auto w/ spoiler out the door. Having 11-1 compression wouldn’t cost more
If that was what initially came with it. Forged rods wouldn’t be too much more, And a turbo at least save a little not having factory header. Could do it for probably 5k if built that way from the start and should still be pretty reliable.

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Old 09-22-2018, 05:09 PM   #11
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Originally Posted by 86MLR View Post
That's what the aftermarket is for.



I highly doubt they will charge it, that would put it in a higher price bracket.



The whole idea of the twins is that they are cheap sports car.



Charging it wouldn't be smart marketing for Toyota or Subaru, in reality it is only a small percentage of people who would buy one, which wouldn't make it financially viable IRT all the R&D and modifications required.



Look at the OEM turbo MX5, minimal extra power for alot more cash, not alot sold, Mazda only had them for a couple of years, they weren't financially viable.



And even the turbo MX5's ended up having alot of the OEM bolt ons replaced to chase more power.



How much would pay for a charged 86?



There are other cars available if you want more power anyway.



Subaru has the WRX/STI, they won't drop another car in that price bracket.



Toyota will soon have the Supra, 2 typical Toyota rwd turbo sports cars competing for sales is not going to happen.



If you want more power just build the motor and drivetrain to handle what you want and bolt on a supercharger or turbo, easy.



In the end, there ain't nothin to it but to do it.



Opinions may vary


You're still missing my point what I'm trying to say is what the heck is the point of adding more support for the type of power they added it's a slap in the face. Add some support when you actually add some real horse power I'm not trying to get in the technicality of car being tuner and that what is why it was not forced inducted but I digress


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Old 09-22-2018, 05:23 PM   #12
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You're still missing my point what I'm trying to say is what the heck is the point of adding more support for the type of power they added it's a slap in the face. Add some support when you actually add some real horse power I'm not trying to get in the technicality of car being tuner and that what is why it was not forced inducted but I digress
How many of these improvements were made for the common parts to other FA-20 applications (turbo WRX/Ascent) and just listed as "improvements" in the BRZ press info vs. improvements necessary for the 5HP increase?
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Old 10-02-2018, 05:28 AM   #13
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am i missing something, i paid 30 out the door for my pp
Australia
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