LS2, 1UZ or TD42T engine conversion

Engines and Engine Systems
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Peter Connan
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Re: LS2, 1UZ or TD42T engine conversion

Post by Peter Connan » 31 Mar 2016 14:23

My unpopular opinion:

Electronics are the main reason for the improvements in engine performance seen over the last three decades. But they are also the bug-bear of engine transplants, and the thing that causes the most problems on conversions.

My feeling is, if you want to turn that GQ into a good general off-roader with reasonable freeway performance, turbo the existing motor.

If you want a dune monster, stick in a well-tuned old-school small-block V8.
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Re: LS2, 1UZ or TD42T engine conversion

Post by jonathan » 31 Mar 2016 16:02

I'm not for or against any of the options, but just for interest sake - I am busy with a project that I've decided to use a 1uz fe (vvti) motor. It's not a conversion so it doesn't have the headaches associated with it. The motor I bought came already wired completely, with its original Lexus ECU and a fuse box with relays that sorts out the motor and gearbox. To get it running was super easy. That doesn't mean it won't have issues, but at least it all OEM and not aftermarket parts

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Re: LS2, 1UZ or TD42T engine conversion

Post by SJC » 28 Jan 2018 12:24

Tinus lotz wrote:
30 Mar 2016 16:05

My voorstel is koop daai 4.5l petrol motor wat uit die fabriek met carburettor gekom het alles pas presies tot die starter en radiator. ....seker jy kan sy arm draai vir so 22k daar rond maar geen surprises nie exhaust drade alles pas mountings ect ect .....en jy kan jou 4.2 inruil op hom......
4.5 het genoeg low down krag om meeste diesels te laat skaam kry en jy ga lekke reisies jaag op die high way .....
En die bage is reg
Praat met Piet en Mr boegman altwee het 4.5motors in hulle GQ werk mooi
Daar is n 4.8 ook vir 30k maar die moeite om hom aan die loop te kry in n kar wat nie n ecu vir hom gehad het nie nee dis net te rof :mytwocents:
Hoe "moeilik" sal dit wees om n 4.5 of 4.8 in 4.2 bakkie te sit?

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Re: LS2, 1UZ or TD42T engine conversion

Post by Alex Roux » 28 Jan 2018 13:52

4.5 maklik
4.8 baie moeilik. Alles pas, maar 200 drade kom uit die GRX se ecu. Nie eenvoudig nie. Tensy jy donor kar het met alles in plek, dan copy jy hom oor, maar dan moet jy die auto box ook vat, anders sit jy met baie drade en weet nie watter om waar te connect nie. Ek het myne so gekoop. Sal dit nooit self doen, of laat doen nie.
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Michael
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Re: LS2, 1UZ or TD42T engine conversion

Post by Michael » 29 Jan 2018 06:01

Eerste vraag, ek kan geen voordeel sien om n TD42 te convert na n 4.5 of 4.8 nie? Is daar n spesifieke rede hoekom jy dit wil doen?

2. Jou gear ratio's mag dalk nie lekker werk nie omdat jy nou n engine heg wat hoer kan rev. Maw jou ratte gaan baie lank wees.

3. Om die besrading te doen kan n uitdaging wees.
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Re: LS2, 1UZ or TD42T engine conversion

Post by Alex Roux » 29 Jan 2018 07:58

I suspect the 4.5 petrol is the one Nissan Patrol engine that has historically been the most reliable.

When a 4.2 diesel is set up correctly it seems to have all the torque in a heavy vehicle without the consumption of the petrol engine.

But the 4.5, and other petrol models in general, are much more forgiving if neglected.

That for one makes me prepared to pay the premium at the fuel station.
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Re: LS2, 1UZ or TD42T engine conversion

Post by SJC » 29 Jan 2018 16:54

Michael wrote:
29 Jan 2018 06:01
Eerste vraag, ek kan geen voordeel sien om n TD42 te convert na n 4.5 of 4.8 nie?
Prys om td42 wat stukkend is reg te maak vs n ander enjin....

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Re: LS2, 1UZ or TD42T engine conversion

Post by Tinus lotz » 29 Jan 2018 18:14

Fanus daar is altyd dinge ....regtig ......hou by soos sy ma hom gemaak het...regtig

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Re: LS2, 1UZ or TD42T engine conversion

Post by SJC » 29 Jan 2018 21:08

Tinus lotz wrote:
29 Jan 2018 18:14
Fanus daar is altyd dinge ....regtig ......hou by soos sy ma hom gemaak het...regtig
:surprised:
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Re: LS2, 1UZ or TD42T engine conversion

Post by Russ Kellermann » 29 Jan 2018 23:39

What about a 2UZ motor (4.7 V8) rather... not difficult to get, and ridiculously reliable, and very smooth and powerful.

Johan Meyer (owner/ mechanic at JB's in CT)...commented that when people ask him abut the issues regarding this motor,.. his response is that he doesn't know... because in all his years of Toyota land cruiser motor rebuilds,repairs, diagnosis etc....he's never ever had to open one. ......ever.

They were used in all the Lexus models, as well as the Land Cruiser Cignus (it's like the 100VX, but with more fruit).

I'ver personally driven one and it is phenomenal.
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