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whites
Ricer
Joined: 18 May 2007
Tech posts: 23
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 Posted: Tue Nov 03, 2009 2:34 pm
Post subject: Navara Boost |
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| anyone ever adjusted the boost on their navara? whats the posibilities of damaging the engine or is it recommended. |
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QG
18 pounds of Boost
Joined: 18 Jul 2006
Tech posts: 2342
Location: Cross-Crossing, San Fernando
My 2NRide: Nissan Y11 AD WAGON
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Posted: Tue Nov 03, 2009 11:03 pm
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Any turbo owner will tell you, if you want to safely increase boost, get a larger intercooler  Just don't over do it!
What is the stock boost on them Navara?
Last edited by QG on Thu Nov 05, 2009 9:51 am; edited 1 time in total |
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whites
Ricer
Joined: 18 May 2007
Tech posts: 23
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Posted: Wed Nov 04, 2009 9:04 am
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| hmmm? |
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.:PROZAC:..
punchin NOS
Joined: 07 May 2003
Tech posts: 2825
Location: Mississauga,Ont.
My 2NRide: Nissan Silvia Kouki
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Posted: Wed Nov 04, 2009 9:52 am
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| Quote: |
Any turbo owner will tell you, if you want to safely increase boost, get a larger intercooler
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Not so at all.
Any increase in boost gas or diesel should be compensated for by a 1:1 increase in fuel. Now the Navara I'm not familiar with but it uses a direct injection diesel right?
Unlike a gas powered car there is no compensation you can do. I had friends raise the boost on their older model diesel engines and boy did it smoke. The pump was advanced and eventually lead to shortened engine life. |
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whites
Ricer
Joined: 18 May 2007
Tech posts: 23
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Posted: Wed Nov 04, 2009 10:16 am
Post subject: OK |
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| now that makes sense. the thing is these vehicles carry boost sensors and is electronically controled direct injection so if it is the boost is raised then the computer should automatically increase fuel. it has been claimed by other tuners that the difference between the mid-power 104kw engine and the 126kw high-power engine is the turbo. i am still searching for more info on that, but if it is true then i would assume that the increase of boost on the mid-power engine should not cause any harm. Help? |
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QG
18 pounds of Boost
Joined: 18 Jul 2006
Tech posts: 2342
Location: Cross-Crossing, San Fernando
My 2NRide: Nissan Y11 AD WAGON
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Posted: Thu Nov 05, 2009 10:01 am
Post subject: Re: OK |
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| whites wrote: | | boost is raised then the computer should automatically increase fuel.i would assume that the increase of boost on the mid-power engine should not cause any harm. Help? |
Correcto!!
The ecu will adjust the amount of fuel needed if you were to increase the boost. I don't see any harm with you increasing the boost but you should research.
When Nissan turbo the SR20VE in the XTRAIL GT...Nissan upgraded the coolant passage way and did minor mods to the new version SR20VE 2001. Just supposedly Nissan did a few mods to the high powered Navara engines vs the mid-powered ones, and lets say you raise boost to 7 psi without any sort of mods; there might be a possibility that damage CAN be done...
So i recommend you do some searching 
And trust me, you don't want to damage you diesel engine....those engines are HEADACHE!! |
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nwr-R
Riding on 13's
Joined: 28 Aug 2009
Tech posts: 8
Location: marabella
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Posted: Thu Nov 05, 2009 10:11 am
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Yes it is true if you raise the boost, the computer will automatically adjust the fuel.
But personally it works best if you upgrade the chip. |
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.:PROZAC:..
punchin NOS
Joined: 07 May 2003
Tech posts: 2825
Location: Mississauga,Ont.
My 2NRide: Nissan Silvia Kouki
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Posted: Thu Nov 05, 2009 10:15 am
Post subject: |
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whites wrote:
boost is raised then the computer should automatically increase fuel.i would assume that the increase of boost on the mid-power engine should not cause any harm. Help?
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It would to within a certain SMALL tolerance , which is usually just to about 2-3psi more.
What flow are your diesel injectors rated at? Is it even possible for them to increase flow as boost increases?
That's why you need too do supporting mods when increasing boost- gas engines usually use a piggy back. |
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QG
18 pounds of Boost
Joined: 18 Jul 2006
Tech posts: 2342
Location: Cross-Crossing, San Fernando
My 2NRide: Nissan Y11 AD WAGON
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Posted: Thu Nov 05, 2009 10:19 am
Post subject: |
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| .:PROZAC:.. wrote: | | Quote: |
whites wrote:
boost is raised then the computer should automatically increase fuel.i would assume that the increase of boost on the mid-power engine should not cause any harm. Help?
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It would to within a certain SMALL tolerance , which is usually just to about 2-3psi more.
What flow are your diesel injectors rated at? Is it even possible for them to increase flow as boost increases?
That's why you need too do supporting mods when increasing boost- gas engines usually use a piggy back. |
Correcto as well...the ecu will only pump a certain amount of fuel.
So if my boy looking to raise high boost with a stock fuel pump and stock injector, that would cause trouble, even possible detination.
An ecu upgrade is a good idea! |
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Dave
3NE 2NR Moderator
Joined: 22 Apr 2003
Tech posts: 12386
Location: playing with above and below
My 2NRide: Mitsubishi Evolution VIII
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Posted: Thu Nov 05, 2009 10:23 am
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all ya need is an adj fpr and ah walbro and yuh good to go man
throw some colder plugs and ah msd and yuh even een ah better shape |
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evolution7tt
3NE 2NR for life
Joined: 21 Oct 2003
Tech posts: 180
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Posted: Sat Nov 14, 2009 11:54 am
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| Dave wrote: |
throw some colder plugs and ah msd and yuh even een ah better shape |
 Yuh not easy. |
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QG
18 pounds of Boost
Joined: 18 Jul 2006
Tech posts: 2342
Location: Cross-Crossing, San Fernando
My 2NRide: Nissan Y11 AD WAGON
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Posted: Sat Nov 14, 2009 9:51 pm
Post subject: |
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| evolution7tt wrote: | | Dave wrote: |
throw some colder plugs and ah msd and yuh even een ah better shape |
Yuh not easy. |
LOL...he making sense.
Simple, short and good |
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