2013 Scion FR-S: 10 Things You Don't Know (Maybe) - Insideline - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Longhorn248 · 12-13-2011, 02:56 PM

Quote:

Originally Posted by tranzformer

I just hope weight is closer to low 2700 instead of 2800.

You can always take out the push start button to save a few pounds

tranzformer · 12-13-2011, 02:59 PM

Quote:

Originally Posted by Giccin

Ditto. I like the low.. grumble.

Yea deep boxer grumble for me too.

ucla bruin · 12-13-2011, 03:35 PM

Cool info. It'd be interesting to see the difference between how a BRZ handles and FR-S. Looks like could just be suspension setup?

keiri · 12-13-2011, 03:36 PM

Quote:

Originally Posted by Dave-ROR

Why? Neither will be loud.. and loud doesn't mean better tone..

I personally hate loud exhausts though. :shrug:

Because what's "quiet" to you may be "loud" to someone else; in some neighborhoods a 5 db sound increase is the difference between a HOA complaint (and fine) and peace.

Also, I just like test data.

WolfpackS2k · 12-13-2011, 03:53 PM

Quote:

Originally Posted by tranzformer

Yea deep boxer grumble for me too.

I believe we've already discussed (over and over) that this car will not have the low grumble sound characteristic to Subaru's boxer engine since it will have equal length headers.

tranzformer · 12-13-2011, 04:12 PM

Quote:

Originally Posted by WolfpackS2k

I believe we've already discussed (over and over) that this car will not have the low grumble sound characteristic to Subaru's boxer engine since it will have equal length headers.

Yes, but that doesn't mean I cant do it with aftermarket like I plan.

WolfpackS2k · 12-13-2011, 04:15 PM

I'm pretty sure equal length headers are better for power production...yes?

tranzformer · 12-13-2011, 04:29 PM

Quote:

Originally Posted by WolfpackS2k

I'm pretty sure equal length headers are better for power production...yes?

Not sure but ichi would know. But I'm not worried about a few hp if I get the low boxer rumble I like.

Dave-ROR · 12-13-2011, 05:40 PM

Quote:

Originally Posted by keiri

Because what's "quiet" to you may be "loud" to someone else; in some neighborhoods a 5 db sound increase is the difference between a HOA complaint (and fine) and peace.

Also, I just like test data.

Probably not

Maybe quiet to someone else will be loud to me lol

However both stock systems will be quiet due to regulations so it's not that critical to know which of them is louder.

ichitaka05 · 12-13-2011, 05:46 PM

Quote:

Originally Posted by WolfpackS2k

I'm pretty sure equal length headers are better for power production...yes?

Quote:

Originally Posted by tranzformer

Not sure but ichi would know. But I'm not worried about a few hp if I get the low boxer rumble I like.

Did someone call for Superhero...

Put the joke on the side. It's up in the air, we don't have any tests done to this engine. As for current EJ engine, EL got more juice out than UEL...

but that doesn't mean it's the same for this FA engine. We don't know til someone/company makes EL & UEL test em out

tranzformer · 12-13-2011, 06:16 PM

Quote:

Originally Posted by ichitaka05

Did someone call for Superhero...

Put the joke on the side. It's up in the air, we don't have any tests done to this engine. As for current EJ engine, EL got more juice out than UEL...

but that doesn't mean it's the same for this FA engine. We don't know til someone/company makes EL & UEL test em out

Thanks Mr. Superhero for coming to our rescue.

Unless I drop >5% hp by going UEL, I will still pick UEL> EL headers just for the sound of them.

Edit: Here is a good video showing the difference in sound on a Legacy for those who haven't heard the difference before.

[u2b]riOz7TxeNZQ[/u2b]

mines13 · 12-13-2011, 06:48 PM

Properly matched tube diameter, primary length, secondary length, port pairing, collector design, etc. are all major factors. An equal length header in a naturally aspirated application will always make more power, assuming the collector, tube lengths and all other metrics were equal. OEM's have to compromise all of these factors, due to production costs and emissions. The catalytic converter must be close enough to the exhaust ports to light off and stay hot...

We will see what the aftermarket header companies come out with, maybe I will do some development with John over at Hy-Tech like we did on the F20C/F22C long tube header. By the time that header was finished it was about 1/3 of the length of the car.

Dave-ROR · 12-13-2011, 08:25 PM

John@Hytech makes awesome products. I'd love to see a Hytech header for this car even though I know I won't want to see the price

iff2mastamatt · 12-13-2011, 08:37 PM

I like these facts. Keep 'em coming.

12-13-2011, 08:25 PM	#41
Dave-ROR Site Moderator Join Date: Dec 2010 Drives: Stuff Location: Florida Posts: 10,317 Thanks: 955 Thanked 5,965 Times in 2,689 Posts Mentioned: 262 Post(s) Tagged: 8 Thread(s)	John@Hytech makes awesome products. I'd love to see a Hytech header for this car even though I know I won't want to see the price __________________ -Dave Track cars: 2013 Scion FRS, 1998 Acura Integra Type-R, 1993 Honda Civic Hatchback DD: 2005 Acura TSX Tow: 2022 F-450 Toys: 2001 Chevrolet Corvette Z06, 1993 Toyota MR2 Turbo, 1994 Toyota MR2 Turbo, 1991 Mitsubishi Galant VR-4 Parts: 2015 Subaru BRZ Limited, 2005 Acura TSX Projects: 2013 Subaru BRZ Limited track car build FS: 2004 GMC Sierra 2500 LT CCSB 8.1/Allison with 99k miles

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12-13-2011, 03:35 PM	#31
ucla bruin Member Join Date: Dec 2011 Drives: Daily Location: CA Posts: 32 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Cool info. It'd be interesting to see the difference between how a BRZ handles and FR-S. Looks like could just be suspension setup?

12-13-2011, 06:48 PM	#40
mines13 Join Date: Nov 2011 Drives: '13 FR-S '12 CBR1000RR Location: Irvine, CA Posts: 1,038 Thanks: 305 Thanked 527 Times in 241 Posts Mentioned: 22 Post(s) Tagged: 0 Thread(s)	Properly matched tube diameter, primary length, secondary length, port pairing, collector design, etc. are all major factors. An equal length header in a naturally aspirated application will always make more power, assuming the collector, tube lengths and all other metrics were equal. OEM's have to compromise all of these factors, due to production costs and emissions. The catalytic converter must be close enough to the exhaust ports to light off and stay hot... We will see what the aftermarket header companies come out with, maybe I will do some development with John over at Hy-Tech like we did on the F20C/F22C long tube header. By the time that header was finished it was about 1/3 of the length of the car.

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