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Tainen · 11-11-2011, 07:06 PM

Hello all- first post here. I drive a modified WRX.

I want to respond to the guys talking about turbo'ing the BRZ... if you take a look at that nice engine pay pic someone posted, you'll see the intake manifold is reversed from WRX/STI motors. This is a trick a lot of the aftermarket guys do to get better piping routes on the FMICs- and I think this is hugely advantageous when you think about adding a turbo to this car. I understand the options are fairly limited with such a high compression ratio, but if someone were to attempt it, it really wouldn't be that hard from a space perspective, because of that intake being flipped around. There's not much space for a turbo to be in the stock location of an STI, in the rear of the motor- but, because of the flipped intake, it'd be super easy to drop a turbo in the front, where a lot of Hondas put it, because the headers are right there, easy to get to, and the intake is also right there. Boom, all the piping is within a foot of eachother. That would make for *extremely* lag free piping, something a lot of modified WRXs and STIs have trouble with, with 12+ ft of piping around the *entire* engine bay. So don't be too discouraged- the physical design actually might benefit a turbo setup, not hurt it.

On the flip side, it might make it harder to fit an EJ257 in there with it's stock turbo set up, since there would be minimal room behind the motor for that stock turbo design. You'd haveto flip the intake and move the turbo, like the design I mentioned above.

Personally- I'd probably keep it NA, just because the darn thing already has 12.5:1 compression. It'd cost far more money to tear the motor open, re-do it to be low compression, fix the ECU, and manage all the aftermath of that, than it would be to just drop in a WRX/STI motor and call it a day. Easiest of all, of course, would be to just do simple bolt ons to the NA motor and be done with it, or get the rumored 2.5 liter STI version of this car and do some bolt ons to it and hope to reach 270+ hp.

(hope this was a good first post)

11-11-2011, 07:06 PM	#522
Tainen Senior Member Join Date: Nov 2011 Drives: First SWP BRZ-L Location: Washington Posts: 809 Thanks: 154 Thanked 350 Times in 174 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Hello all- first post here. I drive a modified WRX. I want to respond to the guys talking about turbo'ing the BRZ... if you take a look at that nice engine pay pic someone posted, you'll see the intake manifold is reversed from WRX/STI motors. This is a trick a lot of the aftermarket guys do to get better piping routes on the FMICs- and I think this is hugely advantageous when you think about adding a turbo to this car. I understand the options are fairly limited with such a high compression ratio, but if someone were to attempt it, it really wouldn't be that hard from a space perspective, because of that intake being flipped around. There's not much space for a turbo to be in the stock location of an STI, in the rear of the motor- but, because of the flipped intake, it'd be super easy to drop a turbo in the front, where a lot of Hondas put it, because the headers are right there, easy to get to, and the intake is also right there. Boom, all the piping is within a foot of eachother. That would make for extremely lag free piping, something a lot of modified WRXs and STIs have trouble with, with 12+ ft of piping around the entire engine bay. So don't be too discouraged- the physical design actually might benefit a turbo setup, not hurt it. On the flip side, it might make it harder to fit an EJ257 in there with it's stock turbo set up, since there would be minimal room behind the motor for that stock turbo design. You'd haveto flip the intake and move the turbo, like the design I mentioned above. Personally- I'd probably keep it NA, just because the darn thing already has 12.5:1 compression. It'd cost far more money to tear the motor open, re-do it to be low compression, fix the ECU, and manage all the aftermath of that, than it would be to just drop in a WRX/STI motor and call it a day. Easiest of all, of course, would be to just do simple bolt ons to the NA motor and be done with it, or get the rumored 2.5 liter STI version of this car and do some bolt ons to it and hope to reach 270+ hp. (hope this was a good first post) Last edited by Tainen; 11-11-2011 at 08:30 PM.