4L Nivara engine swop for 4.5 TB

Engines and Engine Systems
User avatar
Alex Roux
Patrolman 1000+
Patrolman 1000+
Posts: 2424
Joined: 11 Jul 2011 10:54
Full Name: Alexander Roux
Nickname: Witblits
Home Town: Johannesburg
Current 4x4: 2004 GU 3TDi (Lexus) - aka "Witblits"
1996: GQ TB48 conversion - aka "Skilpad"
1993: GQ SWB TB42 - aka "Shortie"
Home Language: Afrikaans
Has thanked: 38 times
Been thanked: 111 times

Re: 4L Nivara engine swop for 4.5 TB

Post by Alex Roux » 03 Sep 2015 16:32

Tinus lotz wrote:Oom mac nothing has more low down torge than a straight six ....on the highway its a different story ......iam talking below 500rpm
Do you really need torque at 500 rpm?
I get it at 1000.
But you do not crawl naturally over rocks with a petrol engine, unless your foot is ever-so-slightly on the pedal. Not even a big straight six.

But the difference between 500 and 1000 is too small for me to manage by foot

What I have considered doing though is installing a "volume switch" on the dashboard with which I can tweak the amount of revs much more accurately - just enough for a given incline.
On a very smooth torque curve such as mine, I think that will work.
Skilpad, Shortie & Witblits (in no particular order)

User avatar
David M
Patrolman
Patrolman
Posts: 762
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 17 times
Been thanked: 71 times

Re: 4L Nivara engine swop for 4.5 TB

Post by David M » 03 Sep 2015 16:58

From what I have heard the Navara 4 l needs a timing chain at about 200 000 km's and the TB 45 needs it at 500 000 km's. That would end the discussion for me.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

User avatar
JoshJ
Patrolman 1000+
Patrolman 1000+
Posts: 1043
Joined: 30 Nov 2013 16:16
Full Name: Joshua Joubert
Nickname: Joshua
Home Town: Swakopmund Namibia
Current 4x4: 2003 Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 79 times
Been thanked: 85 times

Re: 4L Nivara engine swop for 4.5 TB

Post by JoshJ » 03 Sep 2015 17:05

Hi Willem. Gooi daai Navara V6. Jy sal nie spyt wees. Die manne met die 4.8's is net bang jy gaan draaie om hulle ry en nog beter consumption kry. :rolling: :rolling:
According to michael figures theres only 400rpm in it before you get max torque. And at 3600rpm you could even be level with the 4.5. I had a 4L Navara. I removed all the cats. And added a dastek chip. It made 216Kw on the flywheel and 440nm torque. I had no isseus with torque when towing my 2ton off road caravan or over 2ton trailer in thick sand in moz. :mytwocents:
Being alive is a Blessing!!

Regards,
Joshua

User avatar
Tinus lotz
Moderator
Posts: 6622
Joined: 29 Aug 2010 13:07
Full Name: Tinus lotz
Nickname: Tinus lotz
Home Town: Centurion
Current 4x4: Nissan patrol 4.8 GRX 2005

Toyota 2.7 legend 35 LWB 4X4
Home Language: Afrikaans
Has thanked: 505 times
Been thanked: 240 times

Re: 4L Nivara engine swop for 4.5 TB

Post by Tinus lotz » 03 Sep 2015 18:51

Ja ja maar daai v6 ga of spin of doodtrek wanneer jy klippe klim ens nie ideal vir stadige rots werk onder beheer nie. Niks fout met die motor nie dink net nie dat hy die job beter oorals ga doen as n 4.5 reguit ses nie .
As jy motors wil ruil bou n regte groot 8 in anders los hom nie al daai moeite vir min krag meer :salute:

User avatar
Herrie
Moderator
Posts: 3666
Joined: 08 Apr 2009 07:17
Full Name: Kobus Pienaar
Nickname: Herrie
Home Town: Kempton Park
Current 4x4: 1999 Patrol 4500e GRX
1983 Datsun Safari
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 70 times
Been thanked: 83 times

Re: 4L Nivara engine swop for 4.5 TB

Post by Herrie » 03 Sep 2015 19:49

Omdat ek ook my 4.5 se PVC valve skoon gemaak het, het ek baie meer krag op low revs ek kan tot in derde rat weg trek en kry beter petrol verbruik. :thumbup:
Herrie op Safari/Patrollie
1983 Safari
1999 Patrol 4500 GRX

WillemK
Newbie
Newbie
Posts: 2
Joined: 17 Jul 2015 10:31
Full Name: Willem Krog
Nickname: Willem
Home Town: Johannesburg
Current 4x4: Nissan Patrol
Home Language: Afrikaans

Re: 4L Nivara engine swop for 4.5 TB

Post by WillemK » 03 Sep 2015 20:06

Thanks for the feed back. My 4.5 engine went in Zim and took 7 weeks to get it out. A engine overhaul v a recon Nivarra engine is what I am consedering now. Cost wise the overhaul and the straight costs of a Nivara engine is the same but I fear the EXTRA's to get it fit properly. Would I need another gearbox - I assume - but what else is the question.

User avatar
Stefan
Moderator
Posts: 1844
Joined: 28 Apr 2009 08:43
Full Name: Stefan de Villiers
Nickname: Stefan
Home Town: Penhill, Eersterivier, Cape Town
Current 4x4: 2002 3.0 GL Patrol
Home Language: Afrikaans
Location: Cape Town
Has thanked: 146 times
Been thanked: 42 times
Contact:

Re: 4L Nivara engine swop for 4.5 TB

Post by Stefan » 03 Sep 2015 20:07

Just get a diesel, you know you want to! :wink:

User avatar
Chris Skinner
Patrolman
Patrolman
Posts: 936
Joined: 26 Nov 2009 12:58
Full Name: Chris Skinner
Nickname: Chris
Home Town: Centurion
Current 4x4: Nissan Patrol 4,8 GRX 2005
Home Language: English
Has thanked: 10 times
Been thanked: 56 times

Re: 4L Nivara engine swop for 4.5 TB

Post by Chris Skinner » 03 Sep 2015 20:30

Find a 4.8 engine - should just about fit without any big mods...

User avatar
JoshJ
Patrolman 1000+
Patrolman 1000+
Posts: 1043
Joined: 30 Nov 2013 16:16
Full Name: Joshua Joubert
Nickname: Joshua
Home Town: Swakopmund Namibia
Current 4x4: 2003 Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 79 times
Been thanked: 85 times

Re: 4L Nivara engine swop for 4.5 TB

Post by JoshJ » 03 Sep 2015 20:58

Any other engine will be costly. Because of the management system ext. That needs changing.
the heapest will be just to rebuilt the 4.5. Then you no there is no hidden costs and everything fits as it should. The cheapest engine change is the lexus v8. You get good deals on motor and wiring management incl. :mytwocents:
Being alive is a Blessing!!

Regards,
Joshua

User avatar
JoshJ
Patrolman 1000+
Patrolman 1000+
Posts: 1043
Joined: 30 Nov 2013 16:16
Full Name: Joshua Joubert
Nickname: Joshua
Home Town: Swakopmund Namibia
Current 4x4: 2003 Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 79 times
Been thanked: 85 times

Re: 4L Nivara engine swop for 4.5 TB

Post by JoshJ » 03 Sep 2015 21:00

Tinus. Trudie se sy kon nie eers daai V6 dood getrek kry toe sy nog geleer 4x4 het nie :rolling:
Being alive is a Blessing!!

Regards,
Joshua

Post Reply

Return to “09. Engines”

Who is online

Users browsing this forum: No registered users and 0 guests