another 93 FZJ80 1HD-T swap done...

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

MT and AT???

I have MT and sure would love it if it had another gear (or two)!
 
manual or auto .. IIRC 75 - 80 mph are more close to 3K rpm in my case .. and IMOP 3K it's my top comfy rpm range for my 1HD-T ..



A442F
 
at 80kph, I'm at 2,000rpm
100kph 2,400rpm

mileage starts dropping off fast after 100kph, so I don't drive that fast. There's not much sense in driving fast here anyway... even if you get there early, the other guy is probably late.
 
Yep With 295 75 16 AT im 2100 at 100kph, give or take. A442F
 
Part of that is me backing off the skinny pedal as the EGT's start to climb up into a range I'm not comfortable with. However, the benefits of the larger tires outweigh the occasional painful climb up a large grade. Goes with the territory.

I don't really get the worrying about EGT's unless you've changed the pump settings or upped the boost. A factory spec 1-HDT will be happy to run all day at full throttle at anything up to the 4k (ish) rpm limit.

Think of all the cruisers used around the world without a EGT gauge that are used for heavy towing. I'd bet very few drivers let off the power on long hills, I know I don't. I often tow as much as 7000 lbs and when I come to a steep hill, my foot goes to the floor and stays there! Owned it since new and its now done 180k with no issues.

If this was an issue, Toyota would fit gauges and warning lights or you'd hear stories everywhere of engines blowing up and melting! :)
 
the reason that people get nervous about high egt is pretty simple:

the pistons are aluminum
aluminum melts at about 1220*F
presumably, the pistons are of an alloy that melts at a higher temperature (Aluminum oxide melts much higher, for instance- I think 3,000*F or something)

But essentially-- if the EGT is up to 1,250 than it is hotter than "safe" for aluminum parts.

That's the idea, anyway

personally-- I keep it under 100kph for the most part because our roads aren't really good, there are often cows/horses/goats wandering about, and local kids send to play soccer within inches of the pavement.

I do keep an eye on EGT primarily as a fuel efficiency metric. If my EGTs are way up, I take it to mean that I'm not getting very complete combustion in the cylinder.
 
**oh, and because bench-racing is all about "what if", and not particularly interested in "but in real life it usually works out"
 
auto have a by far better OD compared to a manual H150 or H151 Toy Tranny ..

.76 A442F vs .88 in both manuals .. there is a diference.

And you guys will be surprised how much high EGT you sill see in a " stock " 1HD-T ..
 
Great job on the conversion! That is the route I really wanted to go on my 94, wish I could drive it to compare with my 6.2 I had and my current Mercedes.
As far as highway cruising goes, I think it just takes some getting used to, in my limited experience a diesel always seems more labored at highway speeds than a gasser.
I got used to my 6.2 diesel, it loved to lug along at around 1,800 - 2,000 rpm on the highway, then I got my Mercedes diesel and it was turning about 3,000 rpm, really surprised me for a diesel. I kept asking on the forums if that was the way it should be, I was worried I was hurting the engine with it running that hard for extended periods but they assured me it was normal and could do it all day long.
I am now used to it and although I am not worried about hurting the engine I do tend to drive slower just because it feels better and is quieter.
Rusty
 
Cruise Control cable attachment

Hey David, or anyone....:p....

1. Can somebody show a detailed pic of the CC attachment.

2. Looks like there is only the accelerator cable from the pedal going to the lever......

Confused because on my 97 fzj80 rhd, both CC cable and accelerator cable each have its own lever on the throttle body.

:idea::idea::idea:???

Sorry i plagiarized the OP's pic....:hillbilly:
CruiseCable.webp
 
Last edited:
Also, looking at this setup 1hdt cable

I know it RHD, so the accelerator goes to CC box then CC cable goes to throttle lever, so there is only one cable controlling the throotle.
 
Also, looking at this setup 1hdt cable

I know it RHD, so the accelerator goes to CC box then CC cable goes to throttle lever, so there is only one cable controlling the throotle.

Hey New80. On a RHD, HDJ81 there is only the one cable coming from the accelerator pedal to the CC, then one running over the top of the engine to a cam system, then down to the pump.
Hope that is what you are asking?
If you need more pics, let me know. Mine is not going anywhere until parts arrive from Rodney...
 
love my diesel. Living in the UK it is the only realistic option with fuel costing the equivalent of $10.86 a gallon so getting 26-29 miles to a gallon helps. Also seeing a diesel described as an exotic is funny as over here about 80% of al TLCs are the diesel option. It will also cruise happily at 85 mph all day as long as I dont get pulled over
 
Welcome to the 1hdt/a442 club :)
 
Hey New80. On a RHD, HDJ81 there is only the one cable coming from the accelerator pedal to the CC, then one running over the top of the engine to a cam system, then down to the pump.

Yes, i understand your setup, but the OPs swap, there is a cable from pedal directly to IP lever, AND another cable from CC to the bracket on the cam cover (which holds the other pedal cable in place)

Please see my thread in diesel section. Thanks

Jonathan
 
Of course.

Would you mind holding my 200 yard target for me? :lol:

I don't have the shakes too bad at the moment.......;)

Dan, with a little or lots of shakes just use Blaser LRSII. ;) I wish Toyota did bring their diesels into the U.S. :(
 
The 80/diesel combination was never officially sold in Canada either. A bunch of JDM vehicles have surfaced there but the powerplant is not offically supported. That can slow the repair process significantly.
Would you recommend going with the 1hz for a daily driver with low pressure turbo?
 
The only real drawback is availability of replacement parts locating people who know how to work on them.

A cool swap for a hobby vehicle but not appropriate for a one-car owner in my opinion. Nothing like having your only set of wheels laid up for several weeks waiting for parts from the other side of the world.

In your opinion would a 1hz with turbo be a better daily driver engine due to the readily available parts?
 
In your opinion would a 1hz with turbo be a better daily driver engine due to the readily available parts?

Toyota's naturally-aspirated diesels do not take too well to turbos unless they are low-pressure units. When pushed they tend to overheat.

My opinion, of course. I'm sure there are those that will disagree.
 
Last edited:

Users who are viewing this thread

Back
Top Bottom