Group Buy, 63% transfer reduction for GQ/GU

FactoryTD 1HD-FTE: HDJ78/79 with H150F gearbox:
1st: 4.529
Transfer: 2.488
Diffs: 4.100
Landcruiser first gear reduction = 46.199


Patrol auto for chubba
Diff 3.9
1st gear 2.784
Transfer stock (2.02) 3.9 x 2.784 x 2.02 = 21.93
Transfer 43 (2.86) 3.9 x 2.784 x 2.86 = 31.05
Transfer 63 (3.29) 3.9 x 2.784 x 3.29 = 35.72
Transfer 85 (3.743) 3.9 x 2.784 x 3.743 = 40.64

that last number is obviously the number of engine revolutions required to turn the tyre once

very hard to compare a manual to an auto, but on paper thats what it is. depending on which landcruiser it is.
May be worth checking, as I am not sure how much the landcruiser varies from ute to other models.
What landcruiser are you trying to match to?

Cheers, Andy

A343 1st gear 2.804:1 which is the 95-97 auto
Transfer low 2.49:1
The 442 1st gear is 2.950:1


SO,
and landcruiser auto, to compare to your auto, assuming 3.9 diff gears
for the A343: 27.23
for the 442: 28.64

so, which landcruiser and what gearbox are you trying to match?

Obviously bear in mind the torque converter multiplication too.

all good just don't wont to get ripped! Add me to the list thanks.

So I am spamming my own thread here

for the landcruiser a small googling tells me The torque convertor is a 1.8 to one multiplyer.

so that would put the actual reduction to the wheel at

27.23*1.8=49.01
28.64*1.8 =51.55

which is pretty bloody close to the manual reduction, so I reckon they may be right.

I could find no detail, in the workshop manual or on google about the nissan auto torque convertor reduction, but the auto will fit in a 300zx lol
even if we assume a similar 1.8 ratio in the pootrol

using the 63% with the 3.9 and auto first gear the ratio was 35.72 multiply that by 1.8 = 64.30. which is pretty close to a manual with 85%. but obviously the converter gives you much more room to move. I really dont know what the patrol torque convertor ratio is though.

I dont think I have posted it here yet either, 4.11 ratios

Patrol late model first gear reduction = 35.384 engine revolution to one wheel revolution
Patrol late model first gear reduction 24% = 43.406 engine revolution to one wheel revolution
Patrol late model first gear reduction 43% = 49.976 engine revolution to one wheel revolution
Patrol late model first gear reduction 63% = 57.49 engine revolution to one wheel revolution
Patrol late model first gear reduction 85% = 65.406 engine revolution to one wheel revolution

Quote:

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Originally Posted by 89gqpatrol4x4

all good just don't wont to get ripped! Add me to the list thanks.

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too easy mate, on the list you are.

Cheers, Andy

Hey guys, so now with christmas and new years out the way, is there anyone else, or any maybes that want to jump on the bandwagon here before I start finalizing things?

Cheers, Andy

Very interested to see how everyone goes with this. Unfortunately I don't have the coin at the moment, but it has been on my mind ever since doing the Maytown Track and needing some crawler capacity in a general tourer setup. I had the 43% reduction in mind, but I think you might be spot on here with a 63% reduction being the best all rounder.

Sounds good but I'd go with 85% if I'm reducing.

It is all horses for courses really, depends if you want crawl only, or some capability to still move between things without coming out of low range :)

Yeah, I understand what you mean.