Subtle active aero?

Pearl zed · 11-26-2017, 07:53 PM

I have a stock looking PW 09. Wondering what the options are for improving general downforce \ stability in the 80 to 110 mph range. Feels a little floaty at times. Would like it to feel better planted without adding some overly speed racer wanna be looking stuff to the body. Any proven but subtle aero options out there? Thanks

Raeshlavik · 11-26-2017, 09:31 PM

The nismo body kit reportedly generates around 150 pounds at 75mph... All I know is that mine is deceptively capable at triple digit speeds; if you can't see the dash, you have no idea that you're at "go directly to jail" speeds.

ban25 · 11-26-2017, 10:05 PM

At those speeds, you might just want to invest in some better tires. I’ve been on the track at 140+ with the stock Sport trim and had no issues.

cooltoy · 11-26-2017, 10:07 PM

Ventruck · 11-27-2017, 12:05 AM

Front sway bar and tires go a long way. Technically the car holds just fine on smooth roads. The car has the mechanical grip, but the feel of corner entry (or in this case, high speed corrections) feels a bit numb at some point — as if the dead zone widened up.

That could be due to the staggered tire setup. The rears have more grip, especially under acceleration, and most people don't bother with a rear sway bar upgrade unless the tire setup is closer to square

NISMO IX · 11-27-2017, 12:33 AM

You could first try the chin spoiler and wind deflectors if your Z currently doesn't have them.
I notice going from the 2014 base front fascia with the chin spoiler and wind deflectors to the 2015+ nismo fascia the car feels a bit more twitchy in the front. Maybe the downforce working, I don't know. The wind deflectors don't work on the nismo fascia.
Also, maybe just a simple subtle rear deck spoiler could help.

Pearl zed · 11-27-2017, 01:30 PM

Thanks for your thoughts and suggestions. I'm leaning toward some sort of front lip and subtle rear wing. It's not a big deal and never felt unsafe at those speeds. I don't regularly travel in the triple digits but hit some wide open highway on they way home from Maine and had a little fun. The bumps were unsettling for sure at that rate.

NISMO IX · 11-27-2017, 07:58 PM

As per forum rules, you may not want to add that you were on public roads hitting triple digits... "Discussion of illegal activities are not allowed." Just a friendly FYI.

jchammond · 11-27-2017, 08:02 PM

Quote:

Originally Posted by Pearl zed

I have a stock looking PW 09. Wondering what the options are for improving general downforce \ stability in the 80 to 110 mph range. Feels a little floaty at times. Would like it to feel better planted without adding some overly speed racer wanna be looking stuff to the body. Any proven but subtle aero options out there? Thanks

May want to check your wheel alignment; especially the rear toe.
Not enough positive toe on rear will cause this as well.

Felix 808 · 11-30-2017, 12:55 PM

Suspension will make a big difference as well if you are still on stock springs. The stock springs like to unload a lot. I noticed this really bad in downhill off camber situations. Changed out the springs & made a world of difference in handling & making the car more planted.

YMMV

11-26-2017, 09:31 PM	#2 (permalink)
Raeshlavik Base Member Join Date: Jan 2017 Location: Colorado Posts: 132 Drives: 18 Murano Midnight Rep Power: 8	The nismo body kit reportedly generates around 150 pounds at 75mph... All I know is that mine is deceptively capable at triple digit speeds; if you can't see the dash, you have no idea that you're at "go directly to jail" speeds. Leadfooted likes this.

11-26-2017, 10:05 PM	#3 (permalink)
ban25 Enthusiast Member Join Date: Nov 2009 Location: SF, CA Posts: 339 Drives: 17 C7 Z06 M7 Rep Power: 66	At those speeds, you might just want to invest in some better tires. I’ve been on the track at 140+ with the stock Sport trim and had no issues. Rusty, Hotrodz, Leadfooted and 1 others like this. __________________ 2017 Corvette Z06 7MT \| 1LE \| Stage 3 \| DSCSport

11-26-2017, 10:07 PM	#4 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Pearl zed likes this. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

11-27-2017, 12:33 AM	#6 (permalink)
NISMO IX Track Member Join Date: Sep 2015 Location: Southern Maine Age: 47 Posts: 742 Drives: 2014 370Z MB M6 Rep Power: 584	You could first try the chin spoiler and wind deflectors if your Z currently doesn't have them. I notice going from the 2014 base front fascia with the chin spoiler and wind deflectors to the 2015+ nismo fascia the car feels a bit more twitchy in the front. Maybe the downforce working, I don't know. The wind deflectors don't work on the nismo fascia. Also, maybe just a simple subtle rear deck spoiler could help. __________________ 2017 Ford Focus RS Nitrous Blue "KB43VER" 2014 370z Mag Blk 6M "KOKURYU" (Black Dragon)

11-27-2017, 07:58 PM	#8 (permalink)
NISMO IX Track Member Join Date: Sep 2015 Location: Southern Maine Age: 47 Posts: 742 Drives: 2014 370Z MB M6 Rep Power: 584	As per forum rules, you may not want to add that you were on public roads hitting triple digits... "Discussion of illegal activities are not allowed." Just a friendly FYI. __________________ 2017 Ford Focus RS Nitrous Blue "KB43VER" 2014 370z Mag Blk 6M "KOKURYU" (Black Dragon)

11-27-2017, 12:05 AM	#5 (permalink)
Ventruck Track Member Join Date: Jun 2016 Location: California Posts: 785 Drives: '13 Sport+Touring M6 Rep Power: 22898	Front sway bar and tires go a long way. Technically the car holds just fine on smooth roads. The car has the mechanical grip, but the feel of corner entry (or in this case, high speed corrections) feels a bit numb at some point — as if the dead zone widened up. That could be due to the staggered tire setup. The rears have more grip, especially under acceleration, and most people don't bother with a rear sway bar upgrade unless the tire setup is closer to square

11-27-2017, 01:30 PM	#7 (permalink)
Pearl zed Base Member Join Date: Nov 2015 Location: Orleans MA Posts: 98 Drives: 19' mt silver sport Rep Power: 10	Thanks for your thoughts and suggestions. I'm leaning toward some sort of front lip and subtle rear wing. It's not a big deal and never felt unsafe at those speeds. I don't regularly travel in the triple digits but hit some wide open highway on they way home from Maine and had a little fun. The bumps were unsettling for sure at that rate.

11-30-2017, 12:55 PM	#10 (permalink)
Felix 808 A True Z Fanatic Join Date: Oct 2011 Location: Camarillo, CA Posts: 1,063 Drives: 2011 PW/Grey T/S 7AT Rep Power: 2807	Suspension will make a big difference as well if you are still on stock springs. The stock springs like to unload a lot. I noticed this really bad in downhill off camber situations. Changed out the springs & made a world of difference in handling & making the car more planted. YMMV Hotrodz and KapitalZ like this. __________________ Semper Fi Μολὼν λαβέ

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