Nissan 370Z Forum  

Stillen grounding kit-50 hp gain?

Well I finally got around to installing the grounding kit that was free with my long ago purchase of my Stillen G3 cold air intake. Like all of the Stillen

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain

Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 10-25-2011, 03:58 PM   #1 (permalink)
Enthusiast Member
 
Guard Dad's Avatar
 
Join Date: Aug 2010
Location: South Orange County, CA
Posts: 422
Drives: 2010 370Z Silver A7
Rep Power: 11
Guard Dad will become famous soon enough
Default Stillen grounding kit-50 hp gain?

Well I finally got around to installing the grounding kit that was free with my long ago purchase of my Stillen G3 cold air intake. Like all of the Stillen products that I've seen it is very well made and installed cleanly. It's supposed to enhance the operation of the electronics in a number of subtle ways, so I'm guessing at least a +50 horsepower improvement, right?

Back to reality, I'd be pleasantly surprised if it does much of anything as it seems largely redundant. Perhaps Josh at Stillen can offer some insights. Have any of you had any experience with this kit?
Guard Dad is offline   Reply With Quote
Old 10-25-2011, 04:03 PM   #2 (permalink)
A True Z Fanatic
 
ImportConvert's Avatar
 
Join Date: Jun 2010
Location: SWMO
Posts: 4,431
Drives: 2019 CX5 GT Reserve
Rep Power: 7623
ImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond reputeImportConvert has a reputation beyond repute
Default

I'm going to bet that unless you had a problem with your OEM setup, the only thing it grounded to any additional effect was your wallet.
Spartan 1771 likes this.
ImportConvert is offline   Reply With Quote
Old 10-25-2011, 04:10 PM   #3 (permalink)
A True Z Fanatic
 
Cmike2780's Avatar
 
Join Date: Jun 2010
Location: Long Island
Posts: 5,061
Drives: slowwww
Rep Power: 25
Cmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond reputeCmike2780 has a reputation beyond repute
Default

I wasn't expecting any gains, but I do like how it looks in the engine bay. I have heard it is suppose to help smooth out the shifts on the automatic.
__________________
[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]

Cmike2780 is offline   Reply With Quote
Old 10-25-2011, 04:11 PM   #4 (permalink)
A True Z Fanatic
 
Join Date: Aug 2009
Location: N/A
Posts: 76,801
Drives: N/A
Rep Power: 141517
kenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond repute
Default

i suppose it can help if you have a powerful stereo amp running... (?)
kenchan is offline   Reply With Quote
Old 10-25-2011, 04:27 PM   #5 (permalink)
The370Z.com Sponsor
 
Josh@STILLEN's Avatar
 
Join Date: Dec 2008
Location: Costa Mesa, CA
Posts: 1,197
Drives: 2004 G35 Coupe 6MT
Rep Power: 530
Josh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond repute
Default

Grounding kits are effective in a number of ways, and have huge performance improvement potential on older vehicles, as years of crap buildup and things with connections and the like. Obviously with newer vehicles like the 370Z's, less performance gains are there, but it will set you up for less drop off of performance due to electrical ground issues as the car gets older.

Some feel bigger responses than others, but it's especially beneficial for those with automatic transmissions, and you'll read all over the place of people reporting snappier shifting and better shift response times with the grounding kit installed.
Josh@STILLEN is offline   Reply With Quote
Old 10-25-2011, 04:33 PM   #6 (permalink)
6MT
A True Z Fanatic
 
6MT's Avatar
 
Join Date: May 2009
Location: ITU Zone 2
Posts: 22,460
Drives: Reliant Robin
Rep Power: 1786
6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute6MT has a reputation beyond repute
Default

Quote:
Originally Posted by ImportConvert View Post
I'm going to bet that unless you had a problem with your OEM setup, the only thing it grounded to any additional effect was your wallet.
__________________
Andrew

2009 370Z Sport/Touring 6MT sold
2013 Honda Civic Si coupe D/D
6MT is offline   Reply With Quote
Old 10-25-2011, 05:07 PM   #7 (permalink)
Premium Member
 
Mt Tam I am's Avatar
 
Join Date: Jun 2010
Location: California
Posts: 10,709
Drives: 370Z T/S/N 6MT & XKE
Rep Power: 3839
Mt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond reputeMt Tam I am has a reputation beyond repute
Default

Quote:
Originally Posted by ImportConvert View Post
I'm going to bet that unless you had a problem with your OEM setup, the only thing it grounded to any additional effect was your wallet.


Except it was free with CAI purchase.
__________________
"Does the carpet match the drapes? NO!!! I don't date bald women."
Nissan Motorsports 34R Oil Cooler. Stillen CBE. Hotchkis Sport Sway Bars. KW Variant 3 Coilover System. Stillen Gen3 CAI. Michelin Pilot Super Sport. Stillen Brake Ducts. Carbotech™ XP10/XP8 Pads. Z1 Front Rotors. Z1 Stainless Brake Lines. Two degrees of camber
Mt Tam I am is offline   Reply With Quote
Old 10-25-2011, 05:49 PM   #8 (permalink)
Enthusiast Member
 
Guard Dad's Avatar
 
Join Date: Aug 2010
Location: South Orange County, CA
Posts: 422
Drives: 2010 370Z Silver A7
Rep Power: 11
Guard Dad will become famous soon enough
Default

Quote:
Originally Posted by Josh@STILLEN View Post
Grounding kits are effective in a number of ways, and have huge performance improvement potential on older vehicles, as years of crap buildup and things with connections and the like. Obviously with newer vehicles like the 370Z's, less performance gains are there, but it will set you up for less drop off of performance due to electrical ground issues as the car gets older.

Some feel bigger responses than others, but it's especially beneficial for those with automatic transmissions, and you'll read all over the place of people reporting snappier shifting and better shift response times with the grounding kit installed.
Mine is an AT7 so maybe it will make a difference. Anyway, the price was right, free.

I'm still hoping for that +50 horsepower though.
Guard Dad is offline   Reply With Quote
Old 10-25-2011, 06:10 PM   #9 (permalink)
The370Z.com Sponsor
 
Josh@STILLEN's Avatar
 
Join Date: Dec 2008
Location: Costa Mesa, CA
Posts: 1,197
Drives: 2004 G35 Coupe 6MT
Rep Power: 530
Josh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond repute
Default

Glad you scored them in one of our promotions..

There were quite a few guys on here who acheived +50whp with the installation of our cat-back, HFCs and Gen 3's..
Josh@STILLEN is offline   Reply With Quote
Old 10-25-2011, 08:55 PM   #10 (permalink)
Enthusiast Member
 
Guard Dad's Avatar
 
Join Date: Aug 2010
Location: South Orange County, CA
Posts: 422
Drives: 2010 370Z Silver A7
Rep Power: 11
Guard Dad will become famous soon enough
Default

Quote:
Originally Posted by Josh@STILLEN View Post
Glad you scored them in one of our promotions..

There were quite a few guys on here who acheived +50whp with the installation of our cat-back, HFCs and Gen 3's..
Well of course you could do all that stuff but where's the fun in that?
Guard Dad is offline   Reply With Quote
Old 10-25-2011, 10:57 PM   #11 (permalink)
A True Z Fanatic
 
Jordo!'s Avatar
 
Join Date: May 2010
Location: Alfa 4C
Posts: 6,394
Drives: The Ace of Spades
Rep Power: 414
Jordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond repute
Default

Quote:
Originally Posted by ImportConvert View Post
I'm going to bet that unless you had a problem with your OEM setup, the only thing it grounded to any additional effect was your wallet.



What do they go for regularly?
__________________
Enjoy it. Destroy it.
Jordo! is offline   Reply With Quote
Old 10-26-2011, 09:27 AM   #12 (permalink)
A True Z Fanatic
 
SophiaZ's Avatar
 
Join Date: Dec 2009
Location: South Jersey
Posts: 1,413
Drives: 2020 50th anniv 7AT
Rep Power: 14
SophiaZ is just really niceSophiaZ is just really niceSophiaZ is just really niceSophiaZ is just really niceSophiaZ is just really nice
Default

I had the grounding kit and I didn't feel a difference in gains. It did make the engine bay pretty tho with the red ones
SophiaZ is offline   Reply With Quote
Old 10-26-2011, 09:47 AM   #13 (permalink)
A True Z Fanatic
 
wheee!'s Avatar
 
Join Date: Sep 2009
Location: Mod Capital of Canada
Age: 54
Posts: 7,349
Drives: cars. lots of cars.
Rep Power: 40178
wheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond repute
Default

The grounding kit is a simple way to ensure smooth signal response from all the fly by wire components in the 370Z. Many people can attest to the gremlins you can face chasing down a poor ground connection. Having the Stillen kit is a way to massively increase the ground path between components and therefore achieve the fastest possible signal response between components.
Placebo effect? Doubtful. HP gains? Doubtful. Insurance against signal dropoff and degraded performance over time? Guaranteed!
I bought mine with other parts from Stillen and as a Military Electronics/Optronics Technician, I can definitely see the benefit to having a grounding kit versus not having one. Well worth the minimal cost of these systems.
__________________

H&R / Stillen / Berk / HKS / Swift / Michelin / UpRev / SPC / Amuse Rep / Seibon / Fringe XVO / TWM / more...
My Journal
wheee! is offline   Reply With Quote
Old 10-26-2011, 10:25 AM   #14 (permalink)
Premium Member
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3582
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

Quote:
Originally Posted by wheee! View Post
The grounding kit is a simple way to ensure smooth signal response from all the fly by wire components in the 370Z. Many people can attest to the gremlins you can face chasing down a poor ground connection. Having the Stillen kit is a way to massively increase the ground path between components and therefore achieve the fastest possible signal response between components.
Just to clear up some electrical misconceptions here (not that your overall point isn't close to the truth):

The speed of signals from your sensors and to your actuators is not affected by a grounding kit. Electricity's speed in a metal medium is a relatively reliable and stable value regardless of any wiring changes you make to a functioning circuit, and is an infinitesimally small component of the ECU's reaction time. Even if you somehow *added* several feet of signal path between the ECU and some sensor, it's not going to have any significant effect on the ECU's reaction time to the sensor's physical input due to electricity "speed".

Obviously, if existing ground connections on the car (factory ground wires, and also metal mounting points between components) have rusted, deteriorated, or been disconnected completely, adding new ground wires connecting the two points is going to lower the resistance between those ground points, leveling out the ground plane.

By electrically leveling out the ground plane (decreasing the resistance between various points that are all considered "ground": anywhere on the engine block, the chassis, and the negative battery terminal), you *can* improve the accuracy of your sensors. One way or another, most sensor outputs are measures as volts or ohms, and if the sensor's ground has some resistance between it and the ECU's ground, those readings' accuracy can be off.

I still think mostly installing a grounding kit on a factory-new car is a placebo though, unless the car was defectively assembled, or you've made other changes that affect grounding. (Case in point: when I switched out my headers, I lost 2 factory grounding points from the engine block to the chassis). For the most part, Nissan probably grounded everything correctly when they built it
__________________
7AT Track Car!
Journal thread / Car setup details
wstar is offline   Reply With Quote
Old 10-26-2011, 10:50 AM   #15 (permalink)
A True Z Fanatic
 
wheee!'s Avatar
 
Join Date: Sep 2009
Location: Mod Capital of Canada
Age: 54
Posts: 7,349
Drives: cars. lots of cars.
Rep Power: 40178
wheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond reputewheee! has a reputation beyond repute
Default

Quote:
Originally Posted by wstar View Post
Just to clear up some electrical misconceptions here (not that your overall point isn't close to the truth):

The speed of signals from your sensors and to your actuators is not affected by a grounding kit. Electricity's speed in a metal medium is a relatively reliable and stable value regardless of any wiring changes you make to a functioning circuit, and is an infinitesimally small component of the ECU's reaction time. Even if you somehow *added* several feet of signal path between the ECU and some sensor, it's not going to have any significant effect on the ECU's reaction time to the sensor's physical input due to electricity "speed".
The speed of the signal from the sensors to the actuators IS affected by the ground path IF there is resistance between the sensors and the actuators. Hence a stronger/better ground will complete the signal more efficiently. Albeit minutely...

Quote:
Originally Posted by wstar View Post
Obviously, if existing ground connections on the car (factory ground wires, and also metal mounting points between components) have rusted, deteriorated, or been disconnected completely, adding new ground wires connecting the two points is going to lower the resistance between those ground points, leveling out the ground plane.

By electrically leveling out the ground plane (decreasing the resistance between various points that are all considered "ground": anywhere on the engine block, the chassis, and the negative battery terminal), you *can* improve the accuracy of your sensors. One way or another, most sensor outputs are measures as volts or ohms, and if the sensor's ground has some resistance between it and the ECU's ground, those readings' accuracy can be off.
Exactly my point.

Quote:
Originally Posted by wstar View Post
I still think mostly installing a grounding kit on a factory-new car is a placebo though, unless the car was defectively assembled, or you've made other changes that affect grounding. (Case in point: when I switched out my headers, I lost 2 factory grounding points from the engine block to the chassis). For the most part, Nissan probably grounded everything correctly when they built it
Agreed. The factory configuration is very well built and well grounded. However, adding addtional grounding paths and linking key components together to ground can only help further down the road when corrosion/wear and tear etc start to take their toll.

I think we are barking up the same tree, merely quibbling over the benefits.
__________________

H&R / Stillen / Berk / HKS / Swift / Michelin / UpRev / SPC / Amuse Rep / Seibon / Fringe XVO / TWM / more...
My Journal
wheee! is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[FOR SALE] Stillen Grounding Kit (Red) esfourteen Parts for sale (Private Classifieds) 4 09-26-2011 05:02 PM
[FOR SALE] STILLEN Grounding Kit red COLDSHOT Parts for sale (Private Classifieds) 2 09-22-2011 01:08 AM
FS BNIB Stillen Grounding Kit ilostmypill Parts for sale (Private Classifieds) 8 09-29-2010 04:27 PM
FS: BNIB Stillen Grounding Kit kuhan Parts for sale (Private Classifieds) 2 09-25-2010 11:56 AM
stillen grounding kit 4r3s Engine & Drivetrain 9 06-23-2010 05:08 PM


All times are GMT -5. The time now is 11:57 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2