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4L Nivara engine swop for 4.5 TB

Engines and Engine Systems

Re: 4L Nivara engine swop for 4.5 TB

Postby 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.
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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.
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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:
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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:
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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:
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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.
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Re: 4L Nivara engine swop for 4.5 TB

Postby Stefan » 03 Sep 2015 20:07

Just get a diesel, you know you want to! :wink:
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Re: 4L Nivara engine swop for 4.5 TB

Postby Chris Skinner » 03 Sep 2015 20:30

Find a 4.8 engine - should just about fit without any big mods...
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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:
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Re: 4L Nivara engine swop for 4.5 TB

Postby 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:
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