Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Engine, Exhaust, Transmission (https://www.ft86club.com/forums/forumdisplay.php?f=8)
-   -   Is it possible to make this car sound like LFA? (https://www.ft86club.com/forums/showthread.php?t=15590)

Mr.Jay 08-24-2012 10:01 PM

I laughed and then I cried at this thread.

Not sure if serious but I do love me the lfa exhaust. F1 at its best for the street

djliquidsteele 08-24-2012 10:06 PM

I'm totally serious. I know it will never be exact, but I know Ferrari spent a ton of time tuning the exhaust to get a certain sound, as I'm sure Toyota did with the LFA. What I think would make it possible as jm1681 said, is dampen the lowend and accentuate the high end, make it very very fast revving, and you're very close to there.

Superhatch 08-24-2012 10:14 PM

Its not just sound. It's how insanely fast the car revs. Many small pistons revving very fast. We just couldn't ever duplicate it. If you lightened everything up, strengthened everything, and then on top of that got a custom exhaust which was tuned like a musical instrument that would be the closest you could get...and it still wouldn't be that close.

http://youtu.be/5BvVM1OdMUk

Bounce 08-24-2012 10:30 PM

Just drop a BMW V10 into it, if it can fit into an E30 it will fit in the 86

Tradewind 08-24-2012 10:37 PM

LFA sounds
 
Quote:

Originally Posted by Jason (Post 401324)
Put a CD with LFA acceleration runs in radio. Crank up the volume :burnrubber:


My suggestion too, too hard to add the extra cyls to get the right note

jm1681 08-24-2012 11:14 PM

Quote:

Originally Posted by Superhatch (Post 401393)
Its not just sound. It's how insanely fast the car revs...

Okay, forget how fast it revs and focus solely on pitch. Not the dynamic note and harmonics of a 10-cylinder engine, but high pitch alone ;)

gwascopter 08-24-2012 11:40 PM

people gotta start using their brain Jesus.

brichard0625 08-24-2012 11:47 PM

[ame="http://www.youtube.com/watch?v=NhghRPqLhP8"]http://www.youtube.com/watch?v=NhghRPqLhP8[/ame]

wouldnt mind my car sounding like this lol

wheelhaus 08-24-2012 11:54 PM

yeah, kinda missing a few cylinders.

Engine design has a huge effect on exhaust note, and then the exhaust system itself has another effect. Cylinder angle, such as inline, flat, 15°V, 45°V, 60°V 90°V, cylinder firing order, number of cylinders, equal or unequal length headers, exhaust and intake valve timing, compression, intake tract shape, blah blah blah... This is just the obvious mechanical stuff.

In short, no. the FA20 could never really sound like the LFA. One may be completely built from the ground up to rev high and rev fast, but the note and character would be entirely different.

subatoy 08-25-2012 01:09 AM

Quote:

Originally Posted by djliquidsteele (Post 401382)
I'm totally serious. I know it will never be exact, but I know Ferrari spent a ton of time tuning the exhaust to get a certain sound, as I'm sure Toyota did with the LFA. What I think would make it possible as jm1681 said, is dampen the lowend and accentuate the high end, make it very very fast revving, and you're very close to there.

seriously dude? do you understand that you are missing 6 pistons to even remotely get close to an LFA sound.

serialk11r 08-25-2012 02:01 AM

Quote:

Originally Posted by jm1681 (Post 401350)
However, I still don't see any real reason why an exhaust can't be tuned to narrow the frequency/tone to the mid-high end. It would take time and money to develop I'm sure, but ultimately, it HAS to be possible.

Problem is, the LFA makes 2.5x as many "primary pulses". You can filter out lower frequencies but the LFA's "fundamental frequency" (in some sense) is 2.5x higher.

To imitate the sound I think you'd have to have variable length exhaust pipes that let you "phase" the sound to achieve a higher note, but you'd need to vary the length according to engine rpm to get the effect to work at more than just one engine speed.

Nevermind though, I think 4 bangers sound great when they hit ~8600rpm :P

czar07 08-25-2012 02:43 AM

I can haz?????

[ame="http://www.youtube.com/watch?v=fV6ky7twY1U"]Porsche Carrera GT Exhaust Note - YouTube[/ame]

yuli8466 08-25-2012 06:04 AM

impossible

jm1681 08-25-2012 06:19 AM

Quote:

Originally Posted by serialk11r (Post 401690)
Problem is, the LFA makes 2.5x as many "primary pulses". You can filter out lower frequencies but the LFA's "fundamental frequency" (in some sense) is 2.5x higher.

To imitate the sound I think you'd have to have variable length exhaust pipes that let you "phase" the sound to achieve a higher note, but you'd need to vary the length according to engine rpm to get the effect to work at more than just one engine speed.

Now THAT is a good answer :) See that people? No sarcastic or nasty comments necessary, and an intelligent answer that even a simpleton like ME can understand was had :thumbsup:

Quote:

Originally Posted by serialk11r (Post 401690)
Nevermind though, I think 4 bangers sound great when they hit ~8600rpm :P

And I agree ;) Still, I wouldn't mind finding the path to a tone that barks and howls more than roars and bellows ;)


All times are GMT -4. The time now is 08:25 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.


Garage vBulletin Plugins by Drive Thru Online, Inc.