Need help with 1hdfte/m yamnar fuel pump 300bhp build (1 Viewer)

[random101]

Hi all,
Bare with me - I have a 1hdft which is great, runs solid. But I was bored and recently bought a 1hdfte with a yanmar mech fuel pump (running).
Now as I got bored - I decided I'd want a turbo to put through roughly 30psi~ to make close to if not 300bhp.

I went down a rabbit hole of Billet rods, ARP headstuds, (ACL BEB which I'll likely do regardless). Then depending on how it looks when I open it.
I'll look at Pistons (I'll prefer to keep them), just crack test and measure the bores if not I'd through in 100 series pistons in matching the correct size, If they are all good. put it back together and box it up with a new headgasket and block and head being machined by a shop.

So my questions;
1. Apart from building an engine for the sake of building it it's pointless exercise? Runs well has 420k km on it.

2. Moving onto the most confusing part. The previous owners tells me the fuel pump is stock (I asked if it was tuned) I don't believe it is / was.

It has stock 1hdfte injectors which need to be replaced - I'm just not sure which size to go with? Either UFI 30's or 70's? I think some companies do a 40 size others 50.
So really looking for some direction on the injectors and what to do with the fuel pump if anything, has low hours and runs well.

I've become a bit overwhelmed with injector specialists of their comments and don't know what people are actually doing with this combo.
So I've come to the internet - the best resource for stuff and things.

Any comments, suggestions would be great

Supporting mods
-PDI FMIC
-PDI Airbox
- 4" Stainless snorkle (that will be the last thing I do).

Cheers,

Edit I maybe able to get a good deal on a blue wheel turbo is it worth it? Or stick with a munro / red turbo sizing?

 

[mudgudgeon]

The Yanmar version of these engines was built for marine applications.
A stock Yanmar pump will have larger elements in it than any of the "Toyota" versions.
I think the Yanmar marine version of the HD-FT produced 300hp, but you have a while ocean keeping them cool.

There's a few guys here on mud who have installed Yanmar engines or Yanmar pumps in cruisers with good results. I can't think of any usernames at the moment.

 

[mudgudgeon]

If you type "Yanmar" into the search bar, and select "search this forum" you'll get a bunch of leads to sort through

 

[random101]

O

If you type "Yanmar" into the search bar, and select "search this forum" you'll get a bunch of leads to sort through

yep I’ve been seeing drips and drabs, I’m hoping they see this and chime in.

Mostly the injector situation

 

[mudgudgeon]

O

yep I’ve been seeing drips and drabs, I’m hoping they see this and chime in.

Mostly the injector situation

You can tag people in a chat by using the @ symbol and then their username eg @random101 , they'll get a notification that they've been mentioned in this thread. ( Unless they have turned off notifications)

 

[mudgudgeon]

Where in Aus are you?

You could reach out to GTurbo, or United Fuel Injection( Denso accredited)

Both in WA, but both have a solid reputation with innovative diesel performance.

There's another fuel injection shop in Gladstone or Rockhampton that was kicking ass with this stuff a while back. Can't think of the business name at the moment

 

[random101]

Thanks mate, I’ve narrowed it down ADI do a quality product with a +40 ($1900) then I have a more local guy Sloane Diesel they can match and tune the injector accordingly.

So between one of those two

 

[WILLD420]

I'm sure you know, but just a reminder that in U.S. spec Diesel trucks that have 300 hp in OEM form, they usually have a cooling stack that is twice as big as what you can fit in a cruiser. The more BTU of heat you put into the cooling system, the less of that HP you can use. That is what has kept me from pursuing a diesel swap. I know 3 people with diesel swaps and all of them have cooling problems as soon as you try to use more than stock or just above it power, especially once summer heat starts baking us.

 

[random101]

I'm sure you know, but just a reminder that in U.S. spec Diesel trucks that have 300 hp in OEM form, they usually have a cooling stack that is twice as big as what you can fit in a cruiser. The more BTU of heat you put into the cooling system, the less of that HP you can use. That is what has kept me from pursuing a diesel swap. I know 3 people with diesel swaps and all of them have cooling problems as soon as you try to use more than stock or just above it power, especially once summer heat starts baking us.

This must be a very isolated issue to us diesel trucks… as we certainly don’t have that issue here.

 

[mudgudgeon]

I'm sure you know, but just a reminder that in U.S. spec Diesel trucks that have 300 hp in OEM form, they usually have a cooling stack that is twice as big as what you can fit in a cruiser. The more BTU of heat you put into the cooling system, the less of that HP you can use. That is what has kept me from pursuing a diesel swap. I know 3 people with diesel swaps and all of them have cooling problems as soon as you try to use more than stock or just above it power, especially once summer heat starts baking us.

You're doing it wrong.

Plenty of diesel cruisers running around the Aussie desert in summer putting out 30-50% or more over stock, and towing boats and trailers etc

 

[WILLD420]

Not sure on the causes. Most have done a lot of work trying and cant solve it. I think it might be elevation related to EGT issues. We run 5-11,000 ft of elevation in the problem areas.

 

[AussieHJCruza]

My HDJ80 ran very happily through 40C summers here with stock fan clutch, aftermarket replacement radiator, with the AC on and occasionally towing whilst making 215 hp at the tyres. Shouldn't have overheating issues with a DI engine and stock cooling system in good condition.