Other than cool factor, what's to be gained by converting to H151?
40th Anniversary Edition gets a 5 speed with 1FZ-FE and OBD-II
- Thread starter sbman
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The A442F is the best auto I have ever driven. Off road, the torque converter hooks up early and applies torque very smoothly and positively. I love the damn thing. Glad I have one waiting in storage if I ever need a replacement. If I were to do a manual, it would definitely have a compound low first gear. Perhaps I should do the R&D for an NV4500 adaptor.@baldilocks - **maybe** better mpg?
Oh that's right! Who am I kiddin'?
(I actually like my slushbox out in the weeds, truth be told).
You're getting me excited now. And, I don't need to re-smog up here in Julian. Along those lines, would OBD1 potentially make this an easier swap?Of course! I'm hoping I can use Mike's lift for a couple of days to do the physical swap, you could help me wrestle it in there!
Seems like I've read a couple swap threads where people mention the manual reducing drivetrain losses a LOT, making the truck much more responsive for the given amount of power.
Also less thermal energy being put into the cooling system, usually more warning of coming problems, MUCH more straightforward design/troubleshooting..
But I agree about the off-road characteristics. I used to say auto transmissions had no place in my garage.. actually three cars I bought with automatics were manuals before I got rid of them.. but after how my cruiser does off-road I didn't think twice about keeping the GM 6-spd auto behind the vortec.
Also less thermal energy being put into the cooling system, usually more warning of coming problems, MUCH more straightforward design/troubleshooting..
But I agree about the off-road characteristics. I used to say auto transmissions had no place in my garage.. actually three cars I bought with automatics were manuals before I got rid of them.. but after how my cruiser does off-road I didn't think twice about keeping the GM 6-spd auto behind the vortec.
If you are using the 80 50%+ offroad keep the auto, if you are using the truck 70%+ onroad without heavy traffic go manual for sure. You going t gain about as much HP as putting the SC'r on. lol.
A 6,000lb truck with 135 awhp, is pretty rough in 2017, for highway travel. lol.
A 6,000lb truck with 135 awhp, is pretty rough in 2017, for highway travel. lol.
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- #27
I agree, however, the disc is almost $200 plus shipping as is the pressure plate, so it's more like $500. Out of market parts! There is a really well known clutch rebuilder here in town though that I'm going to check with for an overhaul of the disc, pressure plate and flywheel. It's a lot more economical and you can select the type of lining you get. I'm in this really deep already!
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- #28
^ This. Drive a '94 3.0 four runner V6 with an auto. Then drive a manual of the same truck. It's like a driving a vehicle with a different engine. For 99% of the off roading I do, mostly overland style travel it's still nice to have the manual. I want more power and more control over the vehicle. If 1FZ-FE put out a bunch more power or if the trans was as good as the on in my GX, it wouldn't be nearly as much of an issue. I wouldn't consider converting the GX to a manual, that tranny is always in the right gear and has plenty of power to pull through most situations. I fully intend to supercharge or turbocharge this engine with it's 5-speed attached at some point, but that will be another thread.
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- #29
I'll post 0-60 and 50-70 times here before and after for those that are interested. haha.
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- #30
It depends on if the ECU also controls the transmission electronically, and IF you care about the check engine light or not. You should stop by my home-shop some weekend and look at the project! Within a couple of weeks I should have the trans case open and ready to see how much of a rebuild it needs. I found that George @ valley hybrids has a terrain tamer rebuild kit in stock so if I need it, I can get one from him.
Following this. I really want a manual in mine but I've been told that the smog issue is insurmountable. I'm in L.A. so give me a shout if you need another set of hands.
For those of us who aren't in a smog region, how does a trans job impact your smogging? The motor & emissions equip is what they care about, right?
Or has CA gone full control freak over entire running gear?
We had my H151F opened up a few months ago, as it had been improperly sealed at one point and leaked like a sieve. What we found was that the insides were coated with a layer of grey goo, and had to clean everything by hand in the parts cleaner. Everything else looked great, and good odds that your transmission may be the same. The only issues with these transmissions appear to be with the synchros in the earlier versions.
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- #35
No check engine light is allowed, it doesn't matter if the code is for the transmission, at least in CA.
Yes I'm going to open it up, check as many things as can be before I make a final decision to rebuild. It's a later model version, from a '99. It turns smoothly, doesn't have excessive play and shifts cleanly. Once I have a good look at it, I'll decide if I want to put the money into it with rebuild parts. It's far from cheap!
Toyota's EPC numbers for Euro market ECU's
Will a euro ECU pass US OBDII emissions checks though?
Uknown
Maybe yes, maybe no. I have tried my OBDII reader on my wife's Euro-spec Volvo, and my Euro-spec Audi, both from the late 90s, and they definitely can talk with the OBDII software. Now what the US emissions inspections are looking for may not make it through, but I could read and reset codes without any issues.
It would be interesting to find a wrecked FZJ80 with a 5 speed in Europe and see if that plugs into and works with the US harness...without damaging anything. It would definitely be advisable that both EWD's are reviewed well in advance, to ensure that the pin-outs are correct for sensors, etc, so that you don't torch anything with the experiment.
CANBUS (or similar) communication can happen without the specific emissions readiness checks being enabled. I'm not sure about Volvo/Audi, but I'm in the middle of researching GM's GMLAN high-speed communication system for my swap and as far as I can tell engine diagnostic/coding is even done on a different wire(s) to the OBD port than the low-speed comms used by an emissions check station.
IIRC with advanced OBD adapters (I have VCDS for VW) you can check readiness state.. if you still have the OBD reader and access to both cars you might look into it.
If we can figure out how to pass OBDII-based emissions testing with outside-market ECUs it could be a game-changer for 5-spd swaps here in the states.
IIRC with advanced OBD adapters (I have VCDS for VW) you can check readiness state.. if you still have the OBD reader and access to both cars you might look into it.
If we can figure out how to pass OBDII-based emissions testing with outside-market ECUs it could be a game-changer for 5-spd swaps here in the states.