Vented BRZ Fender Trim! - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

86ft.lb · 07-31-2014, 08:37 PM

Quote:

Originally Posted by steve99

easy cheap venting for engine bay , unclip the black plastic piece at rear of underside of bonett on drivers side , for me anyway

Thanks for the tip. I guess this would make a difference. Every help counts. Detaching front license plate decreased max cooland temp from 104c to 102c for me. I will update if I have a chance to measure difference.

steve99 · 07-31-2014, 11:08 PM

rainy day can be good for testing .

Hyper4mance2k · 07-31-2014, 11:52 PM

Wool tuft testing should suffice.

eric6 · 08-01-2014, 06:35 PM

The engine bay should be slightly pressurized from air coming in through the radiator/condenser. Through our CFD research, it appears that the area around the vents are near ambient air pressure. I would think these vents function.

Well executed. I have been wanting to something like this but my balls aren't nearly large enough to cut into my new car.

retoocs · 08-01-2014, 07:45 PM

Quote:

Originally Posted by eric6

The engine bay should be slightly pressurized from air coming in through the radiator/condenser. Through our CFD research, it appears that the area around the vents are near ambient air pressure. I would think these vents function.

Why is the grill opening solid in the model? Are the underbody panels in the model?

eric6 · 08-01-2014, 07:57 PM

Quote:

Originally Posted by retoocs

Why is the grill opening solid in the model? Are the underbody panels in the model?

This thread isn't about the CFD model I posted and I do not want to cloud his thread with this information. I just wanted to show that our CFD analysis shows that area as near ambient air pressure, as that is relevant to his thread and may be of some use to OP.

No hard feelings, just wanting to keep the thread on track

.

retoocs · 08-02-2014, 12:09 AM

The big question is where does the air go from the grill to determine if the side vents would work. I guess your CFD model doesn't address that. Need to know if most of the air go out the bottom or out the trailing edge of the hood?

If most of the air goes out the bottom, the side vents probably won't do anything. If there is a low pressure area behind the trailing edge of the hood, it might just draw through the side vents and straight out the trailing edge of the hood, also making them useless.

The quickest way to determine if the vents work or not is to wire up a couple of thermocouples just on the inside of the vent and also wire up one to measure the outside air temp. If the vent TC measures ambient temp, it's pulling air in. If it is higher than the OAT, then it is venting the engine heat.

raptor87 · 08-02-2014, 01:01 PM

when you stand next to the car you can feel warm air with your hand

Lonewolf · 08-02-2014, 06:47 PM

I don't know if you guys have seen this member's functional vents yet:

http://www.ft86club.com/forums/showthread.php?t=71065

Guff · 08-16-2014, 08:38 PM

Well, this is cool.

J-W · 09-19-2014, 08:54 PM

Just finished one of my fender trim pieces. I don't have much free time, and the fender isn't prepped yet, but here's a picture... Name: uploadfromtaptalk1411174434678.jpg
Views: 3055
Size: 68.4 KB

Name: uploadfromtaptalk1411174434678.jpg
Views: 3055
Size: 68.4 KB

White64Goat · 09-20-2014, 12:37 PM

Do you have any pictures of where you cut the metal on the fenders?

J-W · 09-20-2014, 12:38 PM

Quote:

Originally Posted by White64Goat

Do you have any pictures of where you cut the metal on the fenders?

I'm going to be working on that this afternoon when I get home from work. Will have before, after and installed pics.

White64Goat · 09-20-2014, 02:11 PM

07-31-2014, 11:52 PM	#31
Hyper4mance2k Shadetree Project Ratchet Join Date: Apr 2014 Drives: series.Blue Location: Greater DMV Posts: 1,014 Thanks: 1,575 Thanked 634 Times in 376 Posts Mentioned: 10 Post(s) Tagged: 3 Thread(s)	Wool tuft testing should suffice. __________________ The Shadetree Project: I turn wrenches

08-02-2014, 01:01 PM	#36
raptor87 Senior Member Join Date: Jun 2012 Drives: 2013 DGM BRZ Ltd Location: IL Posts: 273 Thanks: 48 Thanked 99 Times in 57 Posts Mentioned: 4 Post(s) Tagged: 1 Thread(s)	when you stand next to the car you can feel warm air with your hand __________________

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07-31-2014, 11:08 PM	#30
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	rainy day can be good for testing .

08-01-2014, 06:35 PM	#32
eric6 Senior Member Join Date: Oct 2013 Drives: 93 MR2 Turbo; 2014 BRZ Location: United States Posts: 328 Thanks: 143 Thanked 492 Times in 193 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	The engine bay should be slightly pressurized from air coming in through the radiator/condenser. Through our CFD research, it appears that the area around the vents are near ambient air pressure. I would think these vents function. Well executed. I have been wanting to something like this but my balls aren't nearly large enough to cut into my new car.

08-02-2014, 12:09 AM	#35
retoocs Senior Member Join Date: May 2013 Drives: BRZ Location: Sacramento, CA Posts: 168 Thanks: 2 Thanked 63 Times in 43 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	The big question is where does the air go from the grill to determine if the side vents would work. I guess your CFD model doesn't address that. Need to know if most of the air go out the bottom or out the trailing edge of the hood? If most of the air goes out the bottom, the side vents probably won't do anything. If there is a low pressure area behind the trailing edge of the hood, it might just draw through the side vents and straight out the trailing edge of the hood, also making them useless. The quickest way to determine if the vents work or not is to wire up a couple of thermocouples just on the inside of the vent and also wire up one to measure the outside air temp. If the vent TC measures ambient temp, it's pulling air in. If it is higher than the OAT, then it is venting the engine heat.

08-02-2014, 06:47 PM	#37
Lonewolf Senior Member Join Date: Dec 2011 Drives: Moped Location: CA Posts: 4,298 Thanks: 4,897 Thanked 2,128 Times in 1,193 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	I don't know if you guys have seen this member's functional vents yet: http://www.ft86club.com/forums/showthread.php?t=71065

09-19-2014, 08:54 PM	#39
J-W Senior Member Join Date: Sep 2013 Drives: '13 Subaru BRZ Limited Location: Ohio Posts: 143 Thanks: 89 Thanked 37 Times in 21 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Just finished one of my fender trim pieces. I don't have much free time, and the fender isn't prepped yet, but here's a picture...

09-20-2014, 12:37 PM	#40
White64Goat Senior Member Join Date: Jun 2012 Drives: 13 BRZ CBS LTD MT, 02 WRX Location: Fred. Co. Md. Posts: 2,346 Thanks: 65 Thanked 1,111 Times in 627 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)	Do you have any pictures of where you cut the metal on the fenders?

09-20-2014, 02:11 PM	#42
White64Goat Senior Member Join Date: Jun 2012 Drives: 13 BRZ CBS LTD MT, 02 WRX Location: Fred. Co. Md. Posts: 2,346 Thanks: 65 Thanked 1,111 Times in 627 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)

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