Extreme Terrain
4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums

Search 4x4Wire



Recent Posts on TrailTalk
Monty upgrade ideas wanted
by TOASTY
12/03/16 03:47 AM
1989 Raider/Montero front end, needle bearing, etc
by losduarte
12/02/16 05:11 AM
My Sportage '95 - recond. and mods
by dvjcodec
12/01/16 05:31 PM
All-New Terminator Stealth EFI from Holley
by 4x4Wire
12/01/16 12:36 AM
Engine build sanity check (and a sob story)
by poormansporsche
11/30/16 08:41 PM
Lifting a kia sportage? Look here first! Also tire size recommendations.
by eknomf
11/26/16 08:03 PM
Trans fluid flush questions...
by 4x4Wire
11/25/16 05:54 PM
Support 4x4Wire
New Topics on TrailTalk
My Sportage '95 - recond. and mods
by dvjcodec
12/01/16 05:31 PM
All-New Terminator Stealth EFI from Holley
by 4x4Wire
12/01/16 12:36 AM
Trans fluid flush questions...
by hacker
11/24/16 02:34 AM
Engine build sanity check (and a sob story)
by poormansporsche
11/23/16 08:50 PM
The Black Friday Auto Parts Rock Bottom Price
by Racerfanny
11/23/16 02:48 AM
Edge: Half Off Hot Unlock Code Sale
by 4x4Wire
11/22/16 11:10 PM
4x4 Gallery
Clearance check!
Testing the new Kenda Klever 31x10.50x15
My '88
4x4Wire YJ
IFS Holdout
More News on the 'Wire
4x4Voice
4x4Wire
MUIRNet-News
OutdoorWire
Who's Online
0 registered (), 66 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
14,555 Registered Members
38 Forums
136,761 Topics
1,077,706 Posts

Most users ever online: 322 @ 11/13/16 05:53 PM
Topic Options
Rate This Topic
#456543 - 05/28/04 02:10 AM Part-Time 4WD Conversion - worth it?
Anonymous
Unregistered

I'm thinking of buying a 1991-1997 Land Cruiser but hate the MPG. I've read that converting one to a part-time 4WD can increase gas milage. Has anyone done this? Any real-world examples? What kind of MPG did you end up with?
Top
From the Off-Road World
#456544 - 05/28/04 07:39 AM Re: Part-Time 4WD Conversion - worth it?
Anonymous
Unregistered

It'll probably depend on which model 1991-1997 you end up getting. I've heard that on stricly highway trips it's gotten as good as 16-17 mpg (on a 93-97 I think). Probably be close but a less on a 91-92 model.

You might want to check on www.ih8mud.com. A few of those guys either have done it or gone the manual hubs in front w/driveshaft removed.
Top
#456545 - 05/28/04 04:28 PM Re: Part-Time 4WD Conversion - worth it?
taconut Offline
Getting the Wheeling Fever
Registered: 05/13/02
Posts: 63
Loc: Denver, CO
I have heard that this is possible on a FJ80 (91-92) and I think there are even "kits" available to do this. I have also heard that it is not possible to do this on a FZJ80 (93-97). While not possible is probably not entirely accurate, you would probably have to swap out the transfer case for a part time one. Either way though, I doubt that you would ever recoup the cost of conversion through gas savings. I have a 89 FJ62, same engine and transmission as a FJ80 but it is lighter and part time 4wd and I average around 12 mpg -- I doubt that a full time 4wd heavier FJ80 gets much worse.

My suggestion is that if you can't live with the gas mileage of a stock 80 series, you should probably buy something else, sorry.
_________________________
Kevin
1989 FJ62
Top
#456546 - 05/28/04 07:00 PM Re: Part-Time 4WD Conversion - worth it? [Re: taconut]
Anonymous
Unregistered

There are "kits" available from for all FJ80's (both FJ80s and FJZ80s) to convert to part-time 4wd. You DO NOT have to swap out the transfer case to convert to part time 4wd with the "kits".

As I said a couple of the guys who have done a "conversion" of types (the manual hubs and removal of front drive shaft when not off-roading) have gotten as high as 17.8, up from an average of about 12. If you consider 15 mpg as an average and $2.25 as an average for the price of gas, that's a savings of nearly $400 over a year (for 10k miles and over $450 for 12.5k miles).

Aisin manual hubs are somewhere between $50-80/set. . . it's a significant savings especially with the price of gas nowadays. Over a few years, that's quite a bit of money. Even if you went the kit route, you'd still start saving money after the first year (kit is about $500).
Top
#456547 - 05/28/04 07:27 PM Re: Part-Time 4WD Conversion - worth it?
Anonymous
Unregistered

Not quite correct. There is no conversion kit from a viscous transfer case (HF2AV) from a fzj80 to part time. The kit is for a non-ABS vehicle with HF2A transfer case, which generally means '91 and '92.

If you want to convert an ABS fzj80 to part time, swap to a non-viscous transfer case, make the conversion to part time, install manual hubs, and install the center diff lock switch. Not an economical modification IMO.

Edit:
Saving 5MPG due to a part-time conversion is not realistic. Those comments were from one highway trip. IMO you would net about 2MPG average.
Top
#456548 - 05/28/04 10:52 PM Re: Part-Time 4WD Conversion - worth it?
Anonymous
Unregistered

I stand corrected on the "kit" comment, but I stand by my other statements. I was reading about the kit on Marks4wd and forgot about the whole Australia thing.

I didn't say he would get 17.8, I said someone got as high as that. I used a gain of 3mpg, [color:"red"] NOT 5MPG [/color], (re-read my post) to figure out the savings. I was also just pointing out an economical way to get to part-time 4WD, a way that could net you some decent savings easily. I realize that's not the best way, but pointing out it's possible, trying to give some options rather than just saying NO it's not worth it. Is that alright or am I doing something wrong by doing this?
Top

Moderator:  Adam F, Dandeman, kewlynx 

OutdoorWire Websites

OutdoorWire

OutdoorWire

Portal page for OutdoorWire Access and Landuse Central Read More
4x4Voice

4x4Voice

California off road recreation news and information Read More
MUIRNet News

MUIRNet News

News and information about issues affecting outdoor recreation Read More
4x4Wire

4x4Wire

Off road recreation and 4x4 Technical news and information Read More
TrailTalk

TrailTalk

4x4Wire TrailTalk Forums for a variety of 4x4 tech information Read More
  • 1

4x4Wire Tech Section

Jeep 4x4 Tech

Jeep 4x4 Tech

Jeep Tech from JeepWire Read More
Toyota 4x4 Tech

Toyota 4x4 Tech

Toyota Tech from 4x4Wire Read More
Mitsubishi 4x4 Tech

Mitsubishi 4x4 Tech

Mitsubishi Tech from 4x4Wire Read More
Isuzu 4x4 Tech

Isuzu 4x4 Tech

Isuzu Tech from 4x4Wire Read More
  • 1

Search the 4x4Wire site:




4x4Wire Social: | 4x4Wire on FaceBook | Google+4x4Wire on Google+

OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting
Copyright (c) 2000-2016 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.