Excellent work. Just need to shift the redline now.
Always a critic, eh? j/k...
That is fantastic! I'm really looking forward to seeing you getting the cruise to work, that is one thing I would not like to give up.
I am nearly certain that my idea will work, just need to find time to get it set up.
Would the engine driven fan have worked or lined up if you had wished to use it?
Yes, it likely would have worked, it just would have required a custom shroud since it was not even close to lining up with the stock shroud.
I had the electric fan I used lying around and I have to say it has been working great. Cycles on and off like it should.
I always wanted to do a water/air IC setup, so this project was a good excuse to set one up.
I had a thought on the lock up of the TQ in 2nd and 3rd gears. I'm not sure what buttons there on the dash of the Fuso but if there was a tow or PWR button that could change the trans shift points and lock up times.
Yes, there was a PWR/ECO switch on the Fuso, but it is not functioning for me right now.
Also if there is a Jake brake button the trans would need to lock up the TQ for that to have any effect on breaking as far as I understand an auto. If it did not lock up then all the compression breaking would be lost in the TQ and result in a hot trans.
Yes, there was also an exhaust brake, but I did not install it or wire any of it up. I may be able to use the input as a converter lockup override, but not my #1 concern right this second.
If I'm totally off on that sorry was just a idle thought this weekend wile doing something else.
No need to appologize, I appreciate the input!
What in the way of wiring was needed? As far as I can figure there would be about 8-10 wires needing connection to the 80 dash wiring and power? Was the transmission harness also part of the engine harness on the fuso or a separate one?
The connections between the engine/trans and the Cruiser were the easy part to be honest with you. There were more than 8-10 wires, probably 20, but still not difficult at all.
The trick was separating all of the powertrain wiring from the Fuso chassis harness and then shortening and rerouting as needed without getting anything lost or confused. The Fuso chassis harness is fully integrated, so there are a LOT of unused wires when you're done. There is easily more in my leftovers box than got installed in the truck.
Also, the 95-97 cruisers are a bit different than the 93-94 trucks. My ECM is really a PCM, as it controls the engine and the trans. Fromage's truck is a lot like the Fuso in that it has a separate ECU/TCU. The 95-97 cruisers have 4 connectors at the PCM, three are part of the factory engine harness, the 4th is actually part of the dash harness. I had ignored that connector at first and only concentrated on IH1 and IH2, the two white connectors on the engine harness that plug directly into the dash harness. These give you a lot of what you need, but not everything.
Really looking forward to some long term fuel economy numbers. Anything over 20MPG would make this a winner in my books.
Well, my first two tanks were 16.5MPG and 15.5MPG, so in that department I'm really disappointed with this conversion. I have ot say that I really believe there is an underlying issue though, and once I figure out what it is, the numbers should improve.
I really like your approach to the tach problem. I wish I could have done something similar on my Isuzu 4HE1 but the NPR never came with a tach so your approach was not an option.
Thank you, I had no idea the NPRs didn't have a tach... I figured all of these trucks did... who knew? It really was the simplesy solution in my book. The only problem I have right now is that I installed the needle in the wrong postion, so it is reading 200RPM high pretty much everywhere. Simple enough fix, just a matter of finding the time to do it.
On mine, which is very similar, the mechanical fan works great. We are still trying to figure out the power/economy switch, it doesn't seem to do anything! On mine, no mods to the OEM wiring were necessary, I am not sure how SuperHatch has his set up. I will let him chime in.
On the 95-97 cruisers, the "PWR" butting supplies a ground trigger to the PCM. Fromage checked out his wiring diagram, and on the Fuso it supplies +12V. I need to install a relay that will sent power to the TCU, rather than GND. Again, easy fix but its a matter of finding the time.
No problem
