CRD and Bad Fuel Economy - DISCUSSION THREAD - Patrol 4x4 - Nissan Patrol Forum
Patrol 4x4 - Nissan Patrol Forum, Photos, Directory

 


Go Back   Patrol 4x4 - Nissan Patrol Forum > Nissan Patrol and Safari Models > Nissan Patrol GU/GR > 3 Litre ZD30 CRD Engine

Patrol4x4.com is the premier Nissan Patrol Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-02-2011, 09:07 AM
Chip Tuning's Avatar
Premium Vendor

 
Join Date: Oct 2010
Posts: 122
Thanks: 0
Thanked 4 Times in 4 Posts
Garage
Default CRD and Bad Fuel Economy - DISCUSSION THREAD

We have discovered a little quirk with snorkel on late model vehicles. (diesels only at this stage but could be petrol variants too) Also it has been on 2 different vehicles.
If you have poor freeway fuel economy try this. Turn the head of the snorkel backwards and next time you are on the freeway is if your fuel economy has increased.
We have reasoned that the "fault" lies in the fact that the ram air effect is causing the MAF meter to "see" a higher air flow and that it tries to match this extra air with extra fuel thus causing poor freeway economy. City driving does not show this issue as there is not enough ram air effect to piss off the MAF.
If the fuel economy returns, donít bother going to the Dealer ... they wonít have a clue. And don't go to ARB (for example) they too don't understand it (for now).
A simple solution is to slot out the rear of the scoop so that air can travel through it as well as down. This relieves the ram air effect
Hope this helps

Cheers
__________________
CHIP TUNING
Diesel Performance Solutions
-power when you need it-
Office: 02 8090 1881
Fax: 02 8765 8255
Web: http://www.chiptuning.com.au
Contact robert@chiptuning.com.au for 10% forum discount
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 08-02-2011, 09:17 AM
LycraMooseKnuckle's Avatar
bit cold out it seems
 
Join Date: Mar 2007
Location: Brisbane
Posts: 9,273
Thanks: 79
Thanked 178 Times in 110 Posts
Default

Thats for posting robert!

I noticed almost instantly an increase in fuel consumption when I had a Safari snorkel fitted to my JK Jeep CRD. I will try this!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #3  
Old 08-02-2011, 09:20 AM
nethergate's Avatar
Senior Member
 
Join Date: May 2009
Location: Geelong
Posts: 1,366
Thanks: 2
Thanked 1 Time in 1 Post
Default

to be honest i put a snorkle on my petrol 99 holden rodeo and ive noticed increase fuel consumption and ive always had the air ram facing the rear of the car. its 4" tubing too so it shouldnt be restricting it at all
__________________
hmm.... well that didnt work!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
 
  #4  
Old 08-02-2011, 09:59 AM
Twit
 
Join Date: Sep 2009
Location: Brisbane
Posts: 202
Thanks: 0
Thanked 0 Times in 0 Posts
Default

That's not how MAFs work
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #5  
Old 08-02-2011, 01:33 PM
BradM's Avatar
Senior Member
 
Join Date: Feb 2008
Location: Shark Bay/Barrow Island WA
Posts: 893
Thanks: 0
Thanked 9 Times in 8 Posts
Default CRD and Bad Fuel Economy

I know CRD and Bad Fuel Economy has been done to death but can I ask a question?

Those with a CRD and Bad Fuel Economy, who has a snorkel fitted, or who with Bad Fuel Economy does not have a snorkel?

I am extremely interested in the answers...

I have a Nissan one fitted from new.

Read this post down further as I believe I have the answer
__________________
2008 CRD ST Patrol Wagon (Gone)
VDJ76R GXL Wagon
2008 CRD D22 ST-R Navarra 4x4

Last edited by BradM; 08-02-2011 at 03:02 PM.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #6  
Old 08-02-2011, 01:52 PM
Mic's Avatar
Mic Mic is offline
Enemy of Reality
 
Join Date: Mar 2010
Location: Gokd Coast, Australia
Posts: 11,840
Thanks: 179
Thanked 80 Times in 68 Posts
Default

well, I have no snorkel. I get low 11's to 12's L/100km. Stock standard... There's ya baseline!
__________________
Quote:
Originally Posted by ManBoy
Would you prefer we just resort to being intolerant murderous rednecks. Maybe we could be a bit more like the countries these people are fleeing from, maybe then they'll prefer to stay at home.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #7  
Old 08-02-2011, 01:58 PM
BradM's Avatar
Senior Member
 
Join Date: Feb 2008
Location: Shark Bay/Barrow Island WA
Posts: 893
Thanks: 0
Thanked 9 Times in 8 Posts
Default

Thanks Mic, that is interesting information and does supply a baseline.

More CRD responses needed please.
__________________
2008 CRD ST Patrol Wagon (Gone)
VDJ76R GXL Wagon
2008 CRD D22 ST-R Navarra 4x4
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #8  
Old 08-02-2011, 02:03 PM
Senior Member
 
Join Date: Oct 2010
Posts: 134
Thanks: 20
Thanked 19 Times in 14 Posts
Default

2010 CRD with snorkel from new. Getting 16>17L constant no matter what I do.
__________________
2013 Patrol Y62
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #9  
Old 08-02-2011, 02:09 PM
Mic's Avatar
Mic Mic is offline
Enemy of Reality
 
Join Date: Mar 2010
Location: Gokd Coast, Australia
Posts: 11,840
Thanks: 179
Thanked 80 Times in 68 Posts
Default

Might want to restrict it to those without chips and big tyres, Brad, as this'll make it harder to decipher if the bad fuel economy is down to the snorkel alone!
__________________
Quote:
Originally Posted by ManBoy
Would you prefer we just resort to being intolerant murderous rednecks. Maybe we could be a bit more like the countries these people are fleeing from, maybe then they'll prefer to stay at home.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #10  
Old 08-02-2011, 02:15 PM
BradM's Avatar
Senior Member
 
Join Date: Feb 2008
Location: Shark Bay/Barrow Island WA
Posts: 893
Thanks: 0
Thanked 9 Times in 8 Posts
Default

Hi Mic, The two answers that I have now are reinforcing what one smart cookie told me this morning. Knowing what he does for a crust I believe him without doubt, this is just reinforcing it for me and getting a bigger picture.

Need about 20 more replies......
__________________
2008 CRD ST Patrol Wagon (Gone)
VDJ76R GXL Wagon
2008 CRD D22 ST-R Navarra 4x4
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #11  
Old 08-02-2011, 02:19 PM
Senior Member
 
Join Date: Oct 2010
Posts: 134
Thanks: 20
Thanked 19 Times in 14 Posts
Default

Mic, Brad,
Had my chip installed approx 2 months ago and it has not affected the fuel ussage at all. More power but used the same amount of fuel.
__________________
2013 Patrol Y62
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #12  
Old 08-02-2011, 02:28 PM
Mic's Avatar
Mic Mic is offline
Enemy of Reality
 
Join Date: Mar 2010
Location: Gokd Coast, Australia
Posts: 11,840
Thanks: 179
Thanked 80 Times in 68 Posts
Default

Quote:
Originally Posted by BradM View Post
Hi Mic, The two answers that I have now are reinforcing what one smart cookie told me this morning. Knowing what he does for a crust I believe him without doubt, this is just reinforcing it for me and getting a bigger picture.

Need about 20 more replies......
I know the thread

I'm keen to know too, as i'm about to have a snorkel fitted!
__________________
Quote:
Originally Posted by ManBoy
Would you prefer we just resort to being intolerant murderous rednecks. Maybe we could be a bit more like the countries these people are fleeing from, maybe then they'll prefer to stay at home.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #13  
Old 08-02-2011, 02:31 PM
BradM's Avatar
Senior Member
 
Join Date: Feb 2008
Location: Shark Bay/Barrow Island WA
Posts: 893
Thanks: 0
Thanked 9 Times in 8 Posts
Default

Quote:
Whitetruck
Mic, Brad,
Had my chip installed approx 2 months ago and it has not affected the fuel ussage at all. More power but used the same amount of fuel.
Whitetruck, do you have a snorkel fitted to your rig?
__________________
2008 CRD ST Patrol Wagon (Gone)
VDJ76R GXL Wagon
2008 CRD D22 ST-R Navarra 4x4
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #14  
Old 08-02-2011, 02:32 PM
Senior Member
 
Join Date: Oct 2010
Posts: 134
Thanks: 20
Thanked 19 Times in 14 Posts
Default

Yep, from new by NISSAN.
__________________
2013 Patrol Y62
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #15  
Old 08-02-2011, 02:34 PM
Member
 
Join Date: Dec 2010
Location: Northeast Vic
Posts: 89
Thanks: 0
Thanked 3 Times in 3 Posts
Garage
Default

Mostly getting 12,s/100 in my 2009 with no snorkel. Engine is bog stock.
__________________
Light is faster than sound......thats why some people appear bright until they start to speak.

#85 CRD club
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #16  
Old 08-02-2011, 02:35 PM
BradM's Avatar
Senior Member
 
Join Date: Feb 2008
Location: Shark Bay/Barrow Island WA
Posts: 893
Thanks: 0
Thanked 9 Times in 8 Posts
Default

Whitetruck, I assume your fuel economy is bad then?
__________________
2008 CRD ST Patrol Wagon (Gone)
VDJ76R GXL Wagon
2008 CRD D22 ST-R Navarra 4x4
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #17  
Old 08-02-2011, 02:38 PM
CQCraig's Avatar
Senior Member
 
Join Date: Oct 2008
Location: Yeppoon
Posts: 181
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by whitetruck View Post
2010 CRD with snorkel from new. Getting 16>17L constant no matter what I do.
Same.

Factory snorkel on a 2008 CRD and average 16-17L/100km.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #18  
Old 08-02-2011, 02:41 PM
ciapek's Avatar
Member
 
Join Date: Aug 2010
Location: Melbourne
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
Default

High 10's to high 11's, 2010 CRD Auto, totally stock. 10K on the clock.
Hope this helps.
__________________
2010 CRD ST Auto. ARB Deluxe Bar, Safari Snorkle.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #19  
Old 08-02-2011, 02:43 PM
Mic's Avatar
Mic Mic is offline
Enemy of Reality
 
Join Date: Mar 2010
Location: Gokd Coast, Australia
Posts: 11,840
Thanks: 179
Thanked 80 Times in 68 Posts
Default

Hmm, looking pretty interesting...
__________________
Quote:
Originally Posted by ManBoy
Would you prefer we just resort to being intolerant murderous rednecks. Maybe we could be a bit more like the countries these people are fleeing from, maybe then they'll prefer to stay at home.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
  #20  
Old 08-02-2011, 02:44 PM
Senior Member
 
Join Date: Oct 2010
Posts: 134
Thanks: 20
Thanked 19 Times in 14 Posts
Default

Bad.........No its not bad its f@#$%^G atrocious. Uses more fuel that my old VE SS and me having a heavy right foot. I drive the GU like Miss Daisy and still get crap fuel figures.
__________________
2013 Patrol Y62

Last edited by whitetruck; 08-02-2011 at 02:47 PM. Reason: spelling
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Reply

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







Subscribe in NewsGator Online


All times are GMT +10. The time now is 03:30 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.