Nissan 370Z Forum  

Steering Over-boosted?

My previous car was a 2001 BMW 530, which had fantastic steering feel. In comparison to my G37 Sport (assume 370z is the same) the steering is too over boosted

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


Reply
 
LinkBack Thread Tools Display Modes
Old 01-10-2016, 11:12 AM   #1 (permalink)
Base Member
 
Join Date: Jan 2016
Location: Ontario
Posts: 230
Drives: G37 Sport
Rep Power: 6720
SonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond repute
Default Steering Over-boosted?

My previous car was a 2001 BMW 530, which had fantastic steering feel.

In comparison to my G37 Sport (assume 370z is the same) the steering is too over boosted at speeds below 60 MPH.
In looking at how the variable assist works, it would be very easy to reduce the boost and get more feel.

Am I alone in feeling it is over boosted and has anyone modified the system to reduce power steering boost at all speeds?

Last edited by SonicVQ; 01-10-2016 at 11:48 AM.
SonicVQ is offline   Reply With Quote
Old 01-10-2016, 12:48 PM   #2 (permalink)
Base Member
 
Join Date: May 2012
Location: Birmingham
Posts: 105
Drives: 2014 370Z
Rep Power: 13
FNR32 is on a distinguished road
Default

I don't feel any overboost, though I'm not sure the steering is the same in the 370 as it is in the G37. My steering feels moderately heavy and is a stark contrasts from any of the G37's i've driven.
FNR32 is offline   Reply With Quote
Old 01-10-2016, 12:48 PM   #3 (permalink)
Track Member
 
1LIFE's Avatar
 
Join Date: Dec 2012
Location: Louisville, Ky
Posts: 513
Drives: Fast Lane
Rep Power: 62
1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute1LIFE has a reputation beyond repute
Default

Your not alone, coming from a Z33 the light steering feel is one of the few things I dislike in comparison. I haven't seen any modified systems, but definitely would like to if it is possible.
__________________
Built GReddy TT
"I downshift next to Prius so the driver hears me hurting the environment"
1LIFE is offline   Reply With Quote
Old 01-10-2016, 03:29 PM   #4 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,830
Drives: 2013 Nismo 370z
Rep Power: 2684392
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

To me, the steering is too sensitive at higher speeds.
Spooler is offline   Reply With Quote
Old 01-10-2016, 08:35 PM   #5 (permalink)
Base Member
 
Join Date: Jan 2016
Location: Ontario
Posts: 230
Drives: G37 Sport
Rep Power: 6720
SonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond reputeSonicVQ has a reputation beyond repute
Default

After reading the STC section of the FSM, I will scope the power steering solenoid valve and document the duty cycle at different vehicle speeds and engine RPM. Ideally I would like the power steering assist to be much less and CONSTANT.

A lower average voltage at the PSSV (~2 volts) = the reduced assist we experience at 60 mph.

Something like this may be the solution:
AutoSpeed - Modifying Speed-Sensitive Power Steering
SonicVQ is offline   Reply With Quote
Old 01-10-2016, 09:18 PM   #6 (permalink)
A True Z Fanatic
 
DOOMMONKEY777's Avatar
 
Join Date: Oct 2010
Location: Crooklyn
Posts: 1,008
Drives: 370Z 6psd-sport-pkg
Rep Power: 21
DOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond repute
Default

Yes it does change at higher speeds, this was specificaly desinged in order to recieve better control on low profile tiers.

If am not mistaken.
__________________
Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane
DOOMMONKEY777 is offline   Reply With Quote
Reply

Bookmarks


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
boosted DD with occasional 1/4 mi set up help. YzGyz Track / Autocross / Drifting / Dragstrip 40 11-19-2015 11:06 PM
Boosted Performance V 2.0 Boosted Performance Forced Induction 323 11-13-2015 01:39 AM
Anyone have a Boosted 40th? clchisholm 40th Anniversary 370Z 9 12-09-2014 09:03 PM
Has anyone gone from boosted S2000 to boosted 370Z? Moddiction Forced Induction 22 02-03-2014 11:29 AM
boosted z and this hot weather Nissan370 Forced Induction 17 08-21-2012 09:00 AM


All times are GMT -5. The time now is 12:08 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2