My Proffitts 1HD-FT 80 series conversion *UPDATED WITH PICS AND VIDEO*

[p1michaud]

Uhm... that's 800F. Pre turbo. (read: that's cold).

Pretty sure we are talking Deg C here. If not, I'l eat some humble pie...

 

[60Dan]

Very cool build and I can understand your attraction to diesels having owned our first diesel 80 series for 3 years now.



Whoa, if you plan on keeping this engine for a long time I would suggest you don't go near 800 EGT! Anything over 700 starts to approach the limits of your surface metal temperature and will start to reduce the life quite substantially. As for intercoolers, not sure if you can get them in the US but Safari power (same company that makes the Safari/ARB snorkels) makes a very nice front mount intercooler that I've read lots of great things about.

You will enjoy this set up.

Cheers,
P

Hey P,

Your right that would be pretty hot if in Celsius, but over here everything is in Fahrenheit.
800F converts to about 425C, so Gifu truck is running pretty darn cool!
I have heard of Safari, they are pretty pricey, but Ive heard nothing but good things from them. Im also in the middle of a trailer build which Im doing myself, so budget money for the inter cooler will have to wait for now!

Well tomorrow is the big day, I leave Nashville around 9am and arrive in Salt lake after one stop in Denver at 2pm. Rental car is booked, and I shall be making a bee line for Proffitts!

Dont think im going to get much sleep tonight! :wings:

Hey Gifu ... you never did say what inter cooler setup you were running??

 

[Gifu]

my intercooler is a 3" wide ebay special. All the tubing is steel. It ain't pretty, or well routed. But, just goes to show... even a cheap intercooler set-up will work well. Some photos in this album:
https://picasaweb.google.com/b.sulli/HDJ80?authuser=0&authkey=Gv1sRgCLTds8Kis4aAGw&feat=directlink

 

[p1michaud]

Your right that would be pretty hot if in Celsius, but over here everything is in Fahrenheit.
800F converts to about 425C, so Gifu truck is running pretty darn cool!

Humble pie it is, I would have expected more like 1100 to 1200 deg F.

Enjoy the ride home with your new rig. Looking forward to reading about your trip and impressions.

Cheers,
P

 

[hks3sgte]

WOW! Can't wait for the pics tomorrow... HUGEEE Congrats!

 

[Dgurley2000]

Please let us know how the 1HD-FT does climbing highways in the mountains compared to the 1FZ-FE.

 

[RMP&O]

I really like the look of your old 60-series. The diesel 80 looks killer too! Good to see somebody soldering their wiring, so many people don't do that. Just picked up a solder station recently myself.

 

[FJRanger]

Looks great!

I was wondering who was right in front me in line. My Proffitt's swap should done soon as well. Tell John I'll see him and the crew soon

 

[60Dan]

Looks great!

I was wondering who was right in front me in line. My Proffitt's swap should done soon as well. Tell John I'll see him and the crew soon

They had a couple of diesel swaps going in while I was there. Is yours the other 1hdft?

So here I sit at salt lake city airport waiting for my flight to Nashville via Denver, and I must say coming out here to see the facility was an awesome experience! I pulled up to the shop with the cruiser sitting outside like a puppy dog waiting to be picked up!
Jeremiah and John met me and gave me a tour of the facility - talk about cruiser porn! Great bunch of guys. I met with another John who was a top tier Toyota master techician before leaving Toyota to come work for Proffits. Really knows his stuff - he did the wiring on my truck, and took a lot of time walking me through exactly what he did and what everything was in the engine bay - thanks John!

So after a good looking over it was time to turn the key and take it for a test drive. Half a turn of the starter motor and she fired right up.
I went with the 3"free flowing exhaust on this to help it breathe better and although not loud in the lower RPM's once you hit 3000rpm and above it wails like a big cummins - I love it!!!
First thing I noticed that was different was the brakes. Now that it is vacuum driven they are crazy sensitive compared to the gas motor!
Its a real torque monster, but the boost doesn't really kick in until your above 2000it rpm so you really need to get on it. They are gong to tweak a few things for me to have the boost come in a little earlier.
Drivability its great, although I will say on a negative note (trying to give a good review here) that at 65-70mph its revving around 2800 rpm and sounds like it needs another gear. Im currently running 305/70 tires, I think a taller tire will help with that.

Pyro and boost numbers are good, I held my foot into it and hit about 12psi and it wouldn't go past 1200F. Cruising it would stay around 600-700F. Even though that's good im expecting it to be better once it comes home from salt lake which is 4200ft above sea level to Nashville that is 500asl.

Overall I can say im very happy with everything. Its a clean factory looking install which I wanted, everything functions from the lockers to the AC and everything in between.
The only option I couldn't get was cruise control. Being that it now a manual trans the cruise didn't work. I may pursue this further in the future, but I can deal for now.


I took pictures and video but didn't bring my laptop so I will upload everything when I get home.

Any questions feel free to ask

Dan.

 

[hks3sgte]

interesting about the RPM at 65-70... also the boost not kicking in until 2k? Good thing it's nothing major and you'll get that all fixed up! Waiting for the pics!

 

[Gifu]

the 1HDFT are notoriously detuned. There are several adjustments to make to the injection pump to get boost earlier. Read this: http://www.lcool.org/technical/80_series/1hdft_pump_adj.html and don't be afraid to experiment. Just keep track of the changes you make.
I have a manual boost controller I set to hit 15psi; which many feel is a safe number for this engine. The engine really comes alive 10-15 psi...
The 5th gear on the H151 is not terrific. Neither is first, for that matter. I believe it is .881:1. Compare that to the H55F's .85:1 and the FZJ80 auto's .717:1
I swapped my 285's for 295/75/16; only a few companies make this odd size, but it's a nice middle ground between 305 and 315. Might also look at 285's... they are a tiny bit taller then 305 (but you may not like the skinny look).

Did you guys do the BEB on this?

 

[60Dan]

That's good info to have. I was thinking 285 or 295s also. What are your RPM's across the board with those tires?

Yes BEB's were done and they saved the old ones for me to see. Some light wear but nothing to write home about.

Also I had the injectors done, water pump, timing belt, thermostat, clutch and belts all replaced too.

I have read that link you posted before, Its where I first read about the adjustments that can be done to wake this motor up a bit :smiley_drive:

 

[60Dan]

interesting about the RPM at 65-70... also the boost not kicking in until 2k? Good thing it's nothing major and you'll get that all fixed up! Waiting for the pics!

Yeah everything I read says these engine were tuned for tighter emissions, but a tweak here and a turn there supposedly makes a world of difference! I will report back on this when it gets home

 

[60Dan]

So here I sit at salt lake city airport waiting for my flight to Nashville via Denver, and I must say coming out here to see the facility was an awesome experience! I pulled up to the shop with the cruiser sitting outside like a puppy dog waiting to be picked up!
Jeremiah and John met me and gave me a tour of the facility - talk about cruiser porn! Great bunch of guys. I met with another John who was a top tier Toyota master techician before leaving Toyota to come work for Proffits. Really knows his stuff - he did the wiring on my truck, and took a lot of time walking me through exactly what he did and what everything was in the engine bay - thanks John!

So after a good looking over it was time to turn the key and take it for a test drive. Half a turn of the starter motor and she fired right up.
I went with the 3"free flowing exhaust on this to help it breathe better and although not loud in the lower RPM's once you hit 3000rpm and above it wails like a big cummins - I love it!!!
First thing I noticed that was different was the brakes. Now that it is vacuum driven they are crazy sensitive compared to the gas motor!
Its a real torque monster, but the boost doesn't really kick in until your above 2000 rpm so you really need to get on it. They are gong to tweak a few things for me to have the boost come in a little earlier.
Drivability its great, although I will say on a negative note (trying to give a good review here) that at 65-70mph its revving around 2800 rpm and sounds like it needs another gear. Im currently running 305/70 tires, I think a taller tire will help with that.

Pyro and boost numbers are good, I held my foot into it and hit about 12psi and it wouldn't go past 1200F. Cruising it would stay around 600-700F. Even though that's good im expecting it to be better once it comes home from salt lake which is 4200ft above sea level to Nashville that is only 500asl.

Overall I can say im very happy with everything. Its a clean factory looking install which I wanted, everything functions from the lockers to the AC and everything in between.
The only option I couldn't get was cruise control. Being that it now a manual trans the cruise didn't work. I may pursue this further in the future, but I can deal for now.

I took pictures and video but didn't bring my laptop so I will upload everything when I get home.

Any questions feel free to ask

Dan.

OK im back and to continue from the post above, here are the pictures and video as promised .... ENJOY!

Driving out to their facility, I couldnt help but capture a shot of the scenery going down the road - you dont get views like that in Nashville!!

Arrived at the Miller Motorsports location

And here she sits waiting for me

Final Shot with the guys before heading home (Jeremiah, John (tech), Me, John Braiser)

Mountains, cruisers, sunset whats not to love

 

[60Dan]

VIDEO

John wailing on it some while I take video - bear in mind this is taken in between 2 buildings so there is some echoing going on there :sombrero: