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Old 07-14-2012, 02:57 PM   #1
dwx
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Default FR-S/BRZ Turbo Kit

I'm not trying to advertise anything, and hopefully they don't mind I'm crossposting the image. It only took like 6 weeks for someone to actually develop a complete turbo kit for the car, and with Ecutek releasing their re-tuning software a couple weeks ago, with a decent tuning solution.

If this car had been a Subaru-only release, it would have taken about 2 years for someone to actually build a turbo kit for one if ever. While some of the crowd being attracted by the Scion version isn't my favorite, since I'm an elitist Subaru snob, you can't deny the huge amount of aftermarket support being brought to the car from vendors who would never even look at Subaru.

The kit is completely bolt-on, no cutting of anything even the front bumper. Of course I'm waiting until they blow up the engine at like 2psi, given the history of NA Subaru engines and FI.

Here is a link to the full thread on ft86club.com

http://www.ft86club.com/forums/showthread.php?t=9942

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Old 07-15-2012, 11:48 PM   #2
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Very interested to see more on this...
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Old 07-16-2012, 12:59 AM   #3
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yeah with the stock compression at 12.5:1...the motor might last about 2 boost cycles..unless they lowered the compression and added more fuel...hmmm wonder what engine management it has besides stock..

Read the thread..... will be interesting to watch...

Last edited by Scooby South; 07-16-2012 at 01:11 AM.
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Old 07-16-2012, 08:42 AM   #4
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I have something that I'm working with. I'm really not going to take any control from the ecu. The direct injection and the port injection work with each other and I see many issues with trying to fool with them. I'm just taking it one day at a time. Honestly I would love to just remove that direct injection bol****!
Yeah... I don't see this ending well.
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Old 07-16-2012, 10:23 AM   #5
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Sounds like a good plan to me, test the limits of the engine, when engine goes boom replace with built engine and enjoy.
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Old 07-16-2012, 11:18 AM   #6
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I would say re-tune with E-85 and you might be able to safely run like 8 psi on a small turbo.. that's the nice thing about DI - no need to change out injectors so it's just a quick step to E85.
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Old 07-16-2012, 02:00 PM   #7
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Originally Posted by TrunkMonkeyManiac View Post
Sounds like a good plan to me, test the limits of the engine, when engine goes boom replace with built engine and enjoy.
That's great if you've got money to burn and you're just doing it for giggles.. but he's trying to sell a kit to customers.
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Old 07-16-2012, 02:33 PM   #8
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So in 6 months I wonder how many (especially Scions) we see with blown motors from trying to FI the high compression NA subaru motor and having it detonate. I am just imagining all the b**** fest threads about how terrible this motor is about that time.
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Old 07-16-2012, 02:35 PM   #9
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Originally Posted by Computersare8ad View Post
I would say re-tune with E-85 and you might be able to safely run like 8 psi on a small turbo.. that's the nice thing about DI - no need to change out injectors so it's just a quick step to E85.
Lol, where do you get that number?? Nobody knows until they try it...



Edit: Looks like they've turbo'd the motor in Japan. LINK

Last edited by wgr73; 07-16-2012 at 03:42 PM.
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Old 07-16-2012, 06:23 PM   #10
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Originally Posted by Calamity Jesus

That's great if you've got money to burn and you're just doing it for giggles.. but he's trying to sell a kit to customers.
True, if your going to be selling a turbo kit you made you might as well inform everyone of the limits of the engine after you blow your demo car.
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Old 07-19-2012, 03:38 AM   #11
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they have it up and running. i'll hold my tongue for now, but they have it at 4psi w/ stock fueling. at least they aren't selling the kit already.



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Old 07-19-2012, 09:17 AM   #12
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I believe that is with stock header and stock exhaust/cats, and only 4psi.

If I were a betting man this thing will do 245whp with full exhaust/catless, header, and another 2psi. The car should move OK than.

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they have it up and running. i'll hold my tongue for now, but they have it at 4psi w/ stock fueling. at least they aren't selling the kit already.



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Old 07-19-2012, 12:28 PM   #13
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I can understand space constraints, but I am not sure about the location of the turbo.
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Old 07-19-2012, 01:29 PM   #14
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It sits above the subframe but it's hard to see in that pic. I think they were also thinking of making some kind of shield. They used a scavenging pump for the oil return. It also meant not having to replace the stock header and keeping the exhaust path very short.

I think the results are pretty incredible for 4 psi but it is a 12.5:1 CR and it remains to be seen how it will hold up.
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Old 07-19-2012, 04:53 PM   #15
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I like what it did with the torque dip and all... but only an additional 20ish torque? Meh.

My catless headers and overpipe make about that much torque as it sits right now.
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Old 07-19-2012, 05:45 PM   #16
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I like what it did with the torque dip and all... but only an additional 20ish torque? Meh.

My catless headers and overpipe make about that much torque as it sits right now.
It's just 4 psi and all stock exhaust except the "overpipe", so 50hp and 20tq seems decent. I think it's perfect. Enough to flatten out the torque curve but not so much that it will take forever to spool. Once you start putting different exhaust parts on, it can only go up from there. I think I'll go this route if it holds up well after a few years. Subaru OEM turbos are now mounted below the engine, I don't think this would be much lower than those setups. You'd have to fail pretty hard to bend your subframe up 1 inch, and if you did that you'd have bigger problems than scratches on your turbo.

Last edited by spaceywilly; 07-19-2012 at 05:51 PM.
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Old 07-20-2012, 11:46 AM   #17
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Quote:
Originally Posted by No Limit Motorsport View Post
I believe that is with stock header and stock exhaust/cats, and only 4psi.

If I were a betting man this thing will do 245whp with full exhaust/catless, header, and another 2psi. The car should move OK than.
Yikes, that oil pan is *right* next to the exhaust!!!
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Old 07-20-2012, 06:39 PM   #18
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Not bad, waiting to see how long until it goes boom.
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Old 07-20-2012, 06:40 PM   #19
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Yikes, that oil pan is *right* next to the exhaust!!!
Compared to what? The headers wrapping around the oil pan?
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Old 07-20-2012, 07:08 PM   #20
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At 4psi I don't see it going boom. We will have to see. 4psi with full header exhaust may turn out to be a perfect setup for this car. Just enough power to wake it up and make it fun, but not so much that it is a handful to drive in normal conditions.
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Old 07-20-2012, 08:22 PM   #21
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Random thought, I wonder if that 160 whp is with a tune already or without. A good tune on stock cars can increase HP a considerable amount, making the 4psi addition good but possibly not as great as it appears. Unless they tuned it, threw it on the dyno, install turbo/tune, dyno again.


Side not, I remember them saying something about not messing with the tune so the above could be all rubbish...
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Old 07-21-2012, 12:15 AM   #22
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It's not, I think it's an older dyno plot they had from before they even started building an exhaust for the car. ECU tuning wasn't available back then. That and the 160whp number is similar to what other people have gotten in a completely stock car.

As for the exhaust next to the oil pan. It's a flat-4, the exhaust ports are on the bottom, along with the oil pan... just like every Subaru made since forever.
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Old 07-21-2012, 06:28 AM   #23
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It's not, I think it's an older dyno plot they had from before they even started building an exhaust for the car. ECU tuning wasn't available back then. That and the 160whp number is similar to what other people have gotten in a completely stock car.

As for the exhaust next to the oil pan. It's a flat-4, the exhaust ports are on the bottom, along with the oil pan... just like every Subaru made since forever.
I'm just following this thread because its interesting to me... Not really into the BRZ. But....Maybe if they bring out a factory turbo version, that could change.

I don't think the exhaust is that close to the oil pan on my WRX. Yeah, its closer than every other car I've owned, but I don't think it's barely 1" away. Is there an oil cooler as stock on the car? Does the BRZ have a plastic shroud under the engine like the WRX?

160whp, for a 200bhp car, that's not too good. The new 160bhp Focus dynos around 144whp, but it doesn't have a lofty 7400rpm redline. That's a 16hp difference between the BRZ and Focus, both stock.
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Old 07-21-2012, 08:49 AM   #24
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Quote:
Originally Posted by GetTheLedOut

I'm just following this thread because its interesting to me... Not really into the BRZ. But....Maybe if they bring out a factory turbo version, that could change.

I don't think the exhaust is that close to the oil pan on my WRX. Yeah, its closer than every other car I've owned, but I don't think it's barely 1" away. Is there an oil cooler as stock on the car? Does the BRZ have a plastic shroud under the engine like the WRX?

160whp, for a 200bhp car, that's not too good. The new 160bhp Focus dynos around 144whp, but it doesn't have a lofty 7400rpm redline. That's a 16hp difference between the BRZ and Focus, both stock.
16 whp difference yeah. You also forgot about the 600lb difference. That is massive. Not to mention by default a rwd vehicle will have more drive train loss... that is just the way it works so it is to be expected.
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Old 07-21-2012, 10:50 AM   #25
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Quote:
Originally Posted by GetTheLedOut

I'm just following this thread because its interesting to me... Not really into the BRZ. But....Maybe if they bring out a factory turbo version, that could change.

I don't think the exhaust is that close to the oil pan on my WRX. Yeah, its closer than every other car I've owned, but I don't think it's barely 1" away. Is there an oil cooler as stock on the car? Does the BRZ have a plastic shroud under the engine like the WRX?

160whp, for a 200bhp car, that's not too good. The new 160bhp Focus dynos around 144whp, but it doesn't have a lofty 7400rpm redline. That's a 16hp difference between the BRZ and Focus, both stock.
That pic of the underside of the brz that looks like a heat shield, my equal length headers without heat shield are very close to the oil pan and infect sort of wrap around them.
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