Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

Safe Boost Level

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

Forum rules
Post Reply
Posts: 172
Joined: Thu Aug 09, 2007 7:03 pm
Location: Torbanlea QLD

Safe Boost Level

Post by Burdy »

My GU ute goes in next week for a tune just wondering what amount of boost is safe to run which give's me good power/fuel economy but does'nt compromise engine life was thinking between 12-14psi
Any help is greatly appreciated

Cheers Ian
MUD BEERS & MAYHEM 4x4 and SOCIAL Group
5 inch lift,33 MTZ's,240 XGT's,3 inch dump & exhaust and more to come
Top
Posts: 350
Joined: Sun Mar 02, 2008 10:12 pm
Location: Mackay Qld

Post by Tomo_89 »

it doesnt really matter what boost you run.. its the mixture of fuel and air. on a stock fuel pump though there isnt much point going above 14psi
01 td42 GU patrol ute, with extra bits and pieces.
[quote="Bluefreak"][quote="ofr57"]flex is over rated :finger:[/quote]

You drive an IFS too, huh...???

:D[/quote]
Top
Posts: 223
Joined: Sat Feb 03, 2007 9:44 pm
Location: South Frankston, Melbourne

Post by maccasMQ »

anything under 40psi actually damages yout motor as it will run too rich. i would say 44 psi would be safe
Top
Posts: 1711
Joined: Mon May 10, 2004 7:19 am
Location: Kalgoorlie WA

Contact:
Contact roverrat

Post by roverrat »

maccasMQ wrote:anything under 40psi actually damages yout motor as it will run too rich. i would say 44 psi would be safe
:shock: stay away from crack ....
We are put on this earth for one thing, and one thing only, to die. What you do in the mean time is entirely up to you!

http://www.outerlimits4x4.com/ftopic52067.php
Top
Posts: 618
Joined: Sun Mar 05, 2006 2:19 pm
Location: wakka wakka land

Contact:
Contact weeman

Re: Safe Boost Level

Post by weeman »

Burdy wrote:My GU ute goes in next week for a tune just wondering what amount of boost is safe to run which give's me good power/fuel economy but does'nt compromise engine life was thinking between 12-14psi
Any help is greatly appreciated

Cheers Ian
that should be fine, just get a pyro to monitor temps...

i ran virtually 15psi from when i bought the vehicle now 150k....

The last 35k, i have been running 28psi no issuess what so ever boot is your friend, just make sure the mixtures are right...
For all your HID and LED stuff
http://offroadindustries.com.au/

Check us out on Facebook for weekly specials
www.facebook.com/pages/Offroad-Industries/137501182955527
Top
Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Contact:
Contact PGS 4WD

Post by PGS 4WD »

All turbo's have an efficiency zone, if you run more boost than the turbo can produce whilst maintaining minimum outlet air temp all that happens is you substitute air volume for heat. Boost is not what makes the cylinders full, it is the volume of air, a small turbo at high boost can produce less power and more intake heat (resulting in higher EGT's) than the same combination when running more moderate boost levels.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
Top
Post Reply

Return to “Nissan”

Who is online

Users browsing this forum: No registered users and 127 guests