How much boost can 1HZ-T handle? (1 Viewer)

[lshobie]

WTF ..!!!!!! I wanna make my 1HD-T do something like that ..!

It is truly inspirational isn't it!

 

[Tapage]

It is truly inspirational isn't it!

it is .. 226%

 

[Dougal]

It does appear to be a screamer though. Big turbo (I believe GT2876R) with nothing down low, he revs it hard to get that spinning.

 

[lshobie]

Hmm, nothing down low - not sure about that, But I know what you mean as it would be hard to boost from 1600-5000 rpm. He gets 60l/100kms Heavily modded pump - no injector mods. Said the injector mods he tried made no real power gains. Been driving it for 3 years and drives it often.

 

[Dougal]

Hmm, nothing down low - not sure about that, But I know what you mean as it would be hard to boost from 1600-5000 rpm. He gets 60l/100kms Heavily modded pump - no injector mods. Said the injector mods he tried made no real power gains. Been driving it for 3 years and drives it often.

The stark realities of turbocharging, a single wastegated turbo only has a certain operating range and you have to trade off low vs high rpm. Since he's pushing high rpm he's had to pick a big turbo with nothing down low.

 

[lshobie]

The stark realities of turbocharging, a single wastegated turbo only has a certain operating range and you have to trade off low vs high rpm. Since he's pushing high rpm he's had to pick a big turbo with nothing down low.

Agreed. He should put another turbo inline on that thing - now that would be nice.

EDIT, while I agree, I also see that his engine goes from idle to mach 1 in short order - so although he has lower bottom end he is rarely in the bottom end if you know what I mean.

 

[crushers]

first off, yes, he will be sacrificing bottom end turbo action but then a 1HZ has very good bottom end grunt.

secondly there is a trade off to huge horsepower and a heavy foot.
but he does have good taste as well...
from his album:

 

[Hulsty]

he's got over 30,000 kms on it since I last talked to him lasty year - works like a charm, here it is in action:

MVI_9377.flv video by MREXTREMEJEEP - Photobucket

I was standing on the sideline that day, seeing that was AWESOME, the whistle is the marshall signalling the driver to stop and winch due to excessive wheel spin ahahaha

Some other really good drives up that section too, mainly chevy v8's though.

 

[nick4jc]

Yes the guy on outerlimits is running a 1HZ. I don't understand it either.

So you're running bigger pump elements and a boost controller? Essentially a complete custom built pump or was it from a 1HD-FT?

Yes i'm running on bigger pump elements such as bigger rotor, heavy duty spring setup and etc inside the IP.. Some parts also comes from a 1HD-T.. The 1HD-T and FT is almost identical in the IP.. There are things that u must remain as 1HZ as well such as cam disc inside the IP and etc in order to make it work..

I've talked to a bunch of comp guys with 1hz's, they run the stock pump but modify it and the injectors, I'll see if I can find the info.

The injectors I remain stock because the injectors itself you cant do much to it except modifying the pressure release and because my IP can deliver the amount of diesel that I want and I did not change anything to the injectors I dont want to make it complicated because I want to keep most of the things in stock form.. Its great to have some info as well on wad is their setup in running 24psi on 5-6krpm..

Nick

 

[nick4jc]

It does appear to be a screamer though. Big turbo (I believe GT2876R) with nothing down low, he revs it hard to get that spinning.

It really does makes me goose bump hearing that engine revving that hard and having so much boost at 5-6krpm.. its insane.. I wonder how many times he kill the pistons and rods.. for such hardcore your engine will be no way stock internals.. diesel is all about torque.. its different and putting those kind of power stresses the engine so much.. I've seen people achieve this kind of power but they dont use diesel anymore.. They swap in a 2JZ-GTE with GT35R.. They can still snorkeling and they did a lot to the wirings..

Hmm, nothing down low - not sure about that, But I know what you mean as it would be hard to boost from 1600-5000 rpm. He gets 60l/100kms Heavily modded pump - no injector mods. Said the injector mods he tried made no real power gains. Been driving it for 3 years and drives it often.

The stark realities of turbocharging, a single wastegated turbo only has a certain operating range and you have to trade off low vs high rpm. Since he's pushing high rpm he's had to pick a big turbo with nothing down low.

Agreed. He should put another turbo inline on that thing - now that would be nice.

EDIT, while I agree, I also see that his engine goes from idle to mach 1 in short order - so although he has lower bottom end he is rarely in the bottom end if you know what I mean.

first off, yes, he will be sacrificing bottom end turbo action but then a 1HZ has very good bottom end grunt.

secondly there is a trade off to huge horsepower and a heavy foot.
but he does have good taste as well...
from his album:

Choosing the right turbo based on the compressor map in a desired boost level to achieve certain horsepower and torque is what you want to do.. If bringing the rpm to the high level u sacrifice the low end of the diesel torque in which u need for towing.. So you see if you can get all the torque u want as well as being hardcore there is no need to bump that rpm.. its just the matter of finding the sweet spot in your engine with the things you throw onto it.. Of course making sure what you put at it much suits your application..

How about reliability..?? I am so interested in knowing how long the engine can last.. he is pushing that HZ to ultimate level that no one has done it and I'm so interested in what has been broken and what has been improved.. Anyway its all about what you want your truck to do.. but I dont see how u need such high rpm risking all the other stuff in your truck that you built..

No doubt that cruiser is nicely done!!

Nick

 

[nick4jc]

your nutz but that is okay, it is the nutz that make the world go round.

i have to say, i love the intercooler install. so clean, so simple.
NICE.

Thanks!!

Nick

 

[nick4jc]

ditto on the intercooler/intake manifold set-up. Do you have picts of the manifold before you installed it? Or even on the truck?

I'm helping a friend doing one.. I'll take the picture for his.. its quite similar except for the 2.5" inlet flange on the manifold.. Will post some pics..

Nick

 

[Dougal]

How about reliability..?? I am so interested in knowing how long the engine can last.. he is pushing that HZ to ultimate level that no one has done it and I'm so interested in what has been broken and what has been improved.. Anyway its all about what you want your truck to do.. but I dont see how u need such high rpm risking all the other stuff in your truck that you built..

No doubt that cruiser is nicely done!!

Nick

I understand he bought a brand new 1HZ when he built that cruiser. That's the part that makes absolutely no sense to me.
A 1HD-T, FT or FTE would bring a stronger head and lower compression much more suited to high boost as well as a far more efficient engine which will deliver more power for the same boost and fuel.

 

[Volcano cruiser]

I'm helping a friend doing one.. I'll take the picture for his.. its quite similar except for the 2.5" inlet flange on the manifold.. Will post some pics..

Nick

Actually I´m interested in seeing pics of each element of the setup as adding the intercooler is next on my list.

 

[lshobie]

first off, yes, he will be sacrificing bottom end turbo action but then a 1HZ has very good bottom end grunt.

secondly there is a trade off to huge horsepower and a heavy foot.
but he does have good taste as well...
from his album:

Ya this isn't a "putzing around" truck, he drives it very hard as you can see. He also swapped out the front end to a patrol front end because he kept breaking the hi pinion toyota front end - although that front end doesn't look like toyota - maybe not nissan either?

 

[lshobie]

It really does makes me goose bump hearing that engine revving that hard and having so much boost at 5-6krpm.. its insane.. I wonder how many times he kill the pistons and rods.. for such hardcore your engine will be no way stock internals.. diesel is all about torque.. its different and putting those kind of power stresses the engine so much.. I've seen people achieve this kind of power but they dont use diesel anymore.. They swap in a 2JZ-GTE with GT35R.. They can still snorkeling and they did a lot to the wirings..









Choosing the right turbo based on the compressor map in a desired boost level to achieve certain horsepower and torque is what you want to do.. If bringing the rpm to the high level u sacrifice the low end of the diesel torque in which u need for towing.. So you see if you can get all the torque u want as well as being hardcore there is no need to bump that rpm.. its just the matter of finding the sweet spot in your engine with the things you throw onto it.. Of course making sure what you put at it much suits your application..

How about reliability..?? I am so interested in knowing how long the engine can last.. he is pushing that HZ to ultimate level that no one has done it and I'm so interested in what has been broken and what has been improved.. Anyway its all about what you want your truck to do.. but I dont see how u need such high rpm risking all the other stuff in your truck that you built..

No doubt that cruiser is nicely done!!

Nick

Just beaking front drivetrain parts last time I talked to him, engine has factory parts with some HPC coatings from what he told me.

 

[nick4jc]

Actually I´m interested in seeing pics of each element of the setup as adding the intercooler is next on my list.

Alrite i'll try my best to follow through the whole build.. but because the truck is not with me so its a little bit difficult for me to get all the photos.. but none the less i will get some photos to u.. anyway the truck is BJ60 swap to 1HZ-T..

Just beaking front drivetrain parts last time I talked to him, engine has factory parts with some HPC coatings from what he told me.

Factory pistons and rods.. running a GT28.. 24psi revving 5krpm.. SWEET!!! I want to know this freaking guy.. what did he build to make that monster...

I think for my power level I'm still a few level back from his cruiser in that vid.. that is his truck rite..??

Nick

 

[bigbrowndog]

1HZs cracking heads isn't exactly uncommon when turbo is added so it makes me wonder what mods to the head are done to survive that.

 

[crushers]

mods:
"when it breaks then fix it, till then beat it"
no??

 

[crushers]

i would love to be watching his pyro when he was coming out of that hole...