Exhaust HP Gains - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FoolCyclist · 05-17-2012, 06:15 PM

After seeing all the different vids on what the various exhausts sound like I'd like to see some HP numbers after the mods. Anybody seen any numbers yet??

Calum · 05-17-2012, 06:25 PM

Nobody is going to post those yet, not until their products are finalized. Even then the numbers will be scrutinized to death and in the end we wont know which we can believe.

Personally I'll be waiting for independent testing results.

Fly Guy · 05-17-2012, 06:39 PM

Fujitsubo has some power and torque figures:

http://www.fujitsubo.co.jp/prods/det...04740/00001473

Dimman · 05-17-2012, 07:46 PM

Quote:

Originally Posted by Calum

Nobody is going to post those yet, not until their products are finalized. Even then the numbers will be scrutinized to death and in the end we wont know which we can believe.

Personally I'll be waiting for independent testing results.

Plus a bazillion.

ESBjiujitsu · 05-17-2012, 10:49 PM

yeah you can never trust the companies themselves.... and also what conditions the tests were done. I just cant wait until some board members starts getting fitted with custom exhausts like scooby! Anything really lol.

powertrip · 05-18-2012, 07:33 AM

not nearly as much as you would hope. most small n/a motors are pointless to do bolton mods for power (there are a few exceptions i will admit, but not many). either gotta go big or just play around.

TPO · 05-18-2012, 09:01 AM

Quote:

Originally Posted by powertrip

not nearly as much as you would hope. most small n/a motors are pointless to do bolton mods for power (there are a few exceptions i will admit, but not many). either gotta go big or just play around.

Sad but true

Draco-REX · 05-18-2012, 09:03 AM

Cat back exhaust will do nearly nothing for power. They're purely for sound/looks and maybe weight if designed properly.

Headers will be where any exhaust gains are found.

ESBjiujitsu · 05-18-2012, 09:16 AM

what he said~! Just go straight pipes to save weight

unless your ears are sensitive

PERRIN_Jeff · 05-19-2012, 01:31 AM

Quote:

Originally Posted by powertrip

not nearly as much as you would hope. most small n/a motors are pointless to do bolton mods for power (there are a few exceptions i will admit, but not many). either gotta go big or just play around.

Don't say that too loud, or the K20 guys are going to come over here and start getting cranky....

Everyone should spend a little time on the K20 forums and see what these guys are getting. These guys make 70 Wheel HP over stock like its going out of style. Key to all these mods is going to be tuning.

Gardus@Supersprint · 05-19-2012, 08:22 AM

Right now the only header kit I've seen is the HKS, and no results are available yet.

MindtheGap · 05-19-2012, 09:53 AM

Quote:

Originally Posted by PERRIN_Jeff

Don't say that too loud, or the K20 guys are going to come over here and start getting cranky....

Everyone should spend a little time on the K20 forums and see what these guys are getting. These guys make 70 Wheel HP over stock like its going out of style. Key to all these mods is going to be tuning.

The K20 responds great to even just bolt ons. Now I dont expect this car to be as responsive, but we cant just assume it will get nothing

86'd · 05-19-2012, 02:17 PM

Quote:

Originally Posted by PERRIN_Jeff

Don't say that too loud, or the K20 guys are going to come over here and start getting cranky....

Everyone should spend a little time on the K20 forums and see what these guys are getting. These guys make 70 Wheel HP over stock like its going out of style. Key to all these mods is going to be tuning.

I think the gains will be somewhere between the K20 and F20/F22.

And you're right, tuning is going to be a huge factor.

Calum · 05-19-2012, 02:20 PM

The K20's head ports are HUGE right out of the box, and they flow really well. That why they can make so much power. I REALLY want someone to flowbench the FA20 heads.

05-17-2012, 06:15 PM	#1
FoolCyclist Member Join Date: Mar 2012 Drives: SWP BRZ Limited, MT Location: Jacksonville, FL Posts: 92 Thanks: 213 Thanked 44 Times in 19 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Exhaust HP Gains After seeing all the different vids on what the various exhausts sound like I'd like to see some HP numbers after the mods. Anybody seen any numbers yet??

05-17-2012, 06:39 PM	#3
Fly Guy Senior Member Join Date: Nov 2009 Drives: '91 MR2 Location: Roseville, CA Posts: 267 Thanks: 2,363 Thanked 66 Times in 40 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Fujitsubo has some power and torque figures: http://www.fujitsubo.co.jp/prods/det...04740/00001473 __________________ Tada-san: Oh so cooler than the concept.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
T1R exhaust for the FRS/BRZ !	AJ PwR	Engine, Exhaust, Transmission	57	06-22-2013 10:39 PM
What kinds of gains do you expect with E / I and tune?	Partial Stall	Engine, Exhaust, Transmission	66	05-10-2012 11:56 AM
What kind of gains without Turbo	Surge101	Engine, Exhaust, Transmission	18	01-25-2012 09:23 PM
Estimated HP gains - bolt on mods and reflash?	ahausheer	Engine, Exhaust, Transmission	209	01-14-2012 06:14 AM
ft 86 exhaust	dalli	Scion FR-S / Toyota 86 GT86 General Forum	11	09-08-2010 10:16 PM

05-17-2012, 06:25 PM	#2
Calum That Guy Join Date: Dec 2011 Drives: 2013 asphalt FRS MT Location: Halifax, Nova Scotia Posts: 4,865 Thanks: 5,058 Thanked 2,867 Times in 1,499 Posts Mentioned: 82 Post(s) Tagged: 1 Thread(s)	Nobody is going to post those yet, not until their products are finalized. Even then the numbers will be scrutinized to death and in the end we wont know which we can believe. Personally I'll be waiting for independent testing results.

05-18-2012, 07:33 AM	#6
powertrip Senior Member Join Date: Feb 2012 Drives: Mercedes C320, S2000 Location: North Florida Posts: 155 Thanks: 3 Thanked 13 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	not nearly as much as you would hope. most small n/a motors are pointless to do bolton mods for power (there are a few exceptions i will admit, but not many). either gotta go big or just play around.

05-18-2012, 09:03 AM	#8
Draco-REX Corner Junkie Join Date: Feb 2012 Drives: 13 BRZ, 11 STI, 99 RS Location: Ohio Posts: 2,908 Thanks: 129 Thanked 1,520 Times in 702 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Cat back exhaust will do nearly nothing for power. They're purely for sound/looks and maybe weight if designed properly. Headers will be where any exhaust gains are found.

05-19-2012, 08:22 AM	#11
Gardus@Supersprint Banned Join Date: Nov 2011 Drives: Clio TCE Location: Mantova - Italy Posts: 494 Thanks: 17 Thanked 154 Times in 70 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Right now the only header kit I've seen is the HKS, and no results are available yet.

05-19-2012, 02:20 PM	#14
Calum That Guy Join Date: Dec 2011 Drives: 2013 asphalt FRS MT Location: Halifax, Nova Scotia Posts: 4,865 Thanks: 5,058 Thanked 2,867 Times in 1,499 Posts Mentioned: 82 Post(s) Tagged: 1 Thread(s)	The K20's head ports are HUGE right out of the box, and they flow really well. That why they can make so much power. I REALLY want someone to flowbench the FA20 heads.

User Name		Remember Me?
Password