Couldn't wait any longer for a Diffuser to hit market... - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

sw20kosh · 03-20-2013, 05:46 PM

Quote:

Originally Posted by f0rge

did you just buy this thing?

http://shop.britishracinggroup.com/E...G-H111E3ED.htm

and then cut the grey plastic out of the bumper, hang the diffuser from tabs i see in the first pic and then add a mesh screen?

I bought one used for $150. It is a stock diffuser off an elise/exige.

I made my own aluminum brackets to position/hold the diffuser.

I cut a sheet of mesh grille to the appropriate shape and attached it to the bumper.

_hollywood · 03-20-2013, 08:36 PM

Wow ....puts alot of the current exhaust set ups to shame, very impressed for a DIY job

ScionFrsFan · 03-20-2013, 08:40 PM

Quote:

Originally Posted by _hollywood

Wow ....puts alot of the current exhaust set ups to shame, very impressed for a DIY job

Actually I think this is the best exhaust set up.

FRSfan111 · 03-21-2013, 06:42 AM

I wish this was a kit :/ I don't have acess to anything other then jack stands and basic tools. And since my FRS isn't my 95 honda civic, I'm a lot more worried about Fing it up lol.

FRSfan111 · 03-21-2013, 04:59 PM

Just needs a spot for the reverse lights for street use.

sw20kosh · 04-28-2013, 03:19 AM

Uh oh, i've done something...

Unfortunately my last track event granted me my first spin which subsequently claimed my rear diffuser as it got caught on the grass/weeds and folded itself under the car....in enters Difflow Diffuser.

SubieNate · 04-29-2013, 02:32 PM

That looks baddical.

EarlQHan · 04-29-2013, 02:55 PM

I second that. Looks terrific

OrbitalEllipses · 04-29-2013, 03:04 PM

Quote:

Originally Posted by EarlQHan

I second that. Looks terrific

Yes it does. Not keen on removing rear lights or getting a new exhaust unfortunately.

mrk1 · 04-29-2013, 03:42 PM

Looks great, Ive been thinking up some rear aero as well.

Did you have to cut the large section out of the bumper or is it a separate piece you can unbolt?

sw20kosh · 04-29-2013, 05:03 PM

Quote:

Originally Posted by mrk1

Looks great, Ive been thinking up some rear aero as well.

Did you have to cut the large section out of the bumper or is it a separate piece you can unbolt?

Cut. Used a dremel cutter bit then a grinding stone to smooth it out.

Dezoris · 04-29-2013, 06:11 PM

I am all for the hard work guys. I just have to ask, cars like the Elise have a complete flat underbody which makes flow from front to back smooth. And clearly functional.
Just because you strap in a diffuser in the rear does not mean you will get the same effect, namely when the massive cross member is in the front of all of it.

Dezoris · 04-29-2013, 06:17 PM

Just for example the goal is to move non turbulent air into the difuser.
Per this image:

Exige Elise

The FR-S/BRZ is not going to have the same effect, my guess it may not going to do much and at higher speed create balance problems.

FR-S

Its mess under there:

OrbitalEllipses · 04-29-2013, 06:18 PM

Quote:

Originally Posted by Dezoris

I am all for the hard work guys. I just have to ask, cars like the Elise have a complete flat underbody which makes flow from front to back smooth. And clearly functional.
Just because you strap in a diffuser in the rear does not mean you will get the same effect, namely when the massive cross member is in the front of all of it.

It has to be better than nothing.

03-20-2013, 08:36 PM	#30
_hollywood Senior Member Join Date: Jan 2012 Drives: 97 itr sold Location: WI Posts: 565 Thanks: 183 Thanked 165 Times in 98 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Wow ....puts alot of the current exhaust set ups to shame, very impressed for a DIY job __________________ FR-S #56 of 86 Raven MT *FOR SALE*

03-21-2013, 06:42 AM	#32
FRSfan111 Sideways and smiling! Join Date: Jan 2012 Drives: First 86 FRS 5/8/2012 (second US) Location: Oregon Posts: 941 Thanks: 17 Thanked 273 Times in 179 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I wish this was a kit :/ I don't have acess to anything other then jack stands and basic tools. And since my FRS isn't my 95 honda civic, I'm a lot more worried about Fing it up lol. __________________ My build http://www.ft86club.com/forums/showt...08#post1283608

03-21-2013, 04:59 PM	#33
FRSfan111 Sideways and smiling! Join Date: Jan 2012 Drives: First 86 FRS 5/8/2012 (second US) Location: Oregon Posts: 941 Thanks: 17 Thanked 273 Times in 179 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Just needs a spot for the reverse lights for street use. __________________ My build http://www.ft86club.com/forums/showt...08#post1283608

04-29-2013, 03:42 PM	#38
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 20 Post(s) Tagged: 2 Thread(s)	Looks great, Ive been thinking up some rear aero as well. Did you have to cut the large section out of the bumper or is it a separate piece you can unbolt? __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

04-29-2013, 06:11 PM	#40
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,997 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	I am all for the hard work guys. I just have to ask, cars like the Elise have a complete flat underbody which makes flow from front to back smooth. And clearly functional. Just because you strap in a diffuser in the rear does not mean you will get the same effect, namely when the massive cross member is in the front of all of it. __________________ SAVAGEGEESE

04-28-2013, 03:19 AM	#34
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Uh oh, i've done something... Unfortunately my last track event granted me my first spin which subsequently claimed my rear diffuser as it got caught on the grass/weeds and folded itself under the car....in enters Difflow Diffuser.

04-29-2013, 02:32 PM	#35
SubieNate Senior Member Join Date: Aug 2012 Drives: 2013 FR-S Ultramarine Location: Temecula, CA Posts: 959 Thanks: 288 Thanked 560 Times in 269 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	That looks baddical.

04-29-2013, 02:55 PM	#36
EarlQHan Senior Member Join Date: Nov 2012 Drives: Subarus Location: Nowhere Posts: 189 Thanks: 20 Thanked 128 Times in 66 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I second that. Looks terrific

04-29-2013, 06:17 PM	#41
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,997 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	Just for example the goal is to move non turbulent air into the difuser. Per this image: Exige Elise The FR-S/BRZ is not going to have the same effect, my guess it may not going to do much and at higher speed create balance problems. FR-S Its mess under there: __________________ SAVAGEGEESE

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