such an impresive 2H-T

[Tapage]

All that I can said .. it's wou .. !

YouTube - Jumittelua osa 2

I ask about the IP settings and here are few details ..

So this has stock pump with 8.5mm elements from a 70's Custom Ford truck, and the (governor?) the thing in the back of the pump which holds gas, shutting down, max rpm etc. is from W123 200D MB and the pump gives out 160cm3 of diesel and what I've heard is that superturbo MB:s with 7mm elements gives about 120-130 cm3.. I'm not sure about that, but that's what I've heard

 

[GLTHFJ60]

Damn. That's pretty impressive!!! Maybe I'll just get a 2H for my diesel conversion instead of a 12H-T or 1HZ.

 

[Tapage]

I'm not sure .. after more than 10 years knowing my 2H I bet it can produce this amount of powa .. but chating with the owner he said he rev up the 2H up to 4300 rpm ..

Boosting over 2Bars = 28 PSI aprox .. that will kill any 2H in more or less time .. the point is how much time .. sure it will depens on your driving style and many other variables ..

But I'm totally tempted .. !

 

[Dougal]

The comments sound like he's blown that engine up and going for a 12HT. Is that right or have I misinterpreted?

There's some discussion about the 12HT cranks being a lot smaller than 1HD-T cranks. Does the 2H share a crank with either?

If your toyota uses an A type injection pump then you might be able to use injector elements from an Isuzu A type pump (made by Bosch/Zexel/Diesel Kiki).
My Isuzu has 10mm pump elements. They can produce up to 180 cc/100 strokes.

 

[Snailtrail]

There's some discussion about the 12HT cranks being a lot smaller than 1HD-T cranks. Does the 2H share a crank with either?

The 2H and 12HT share the same crank.

 

[seapotato]

there was a guy on pirate4x4 a few years back who had some sort of H diesel ( I think it was a 2H but not sure) and he had that thing cranked right up. domed pistons, tons of boost. bj on roids was his name I think... 42's on stock cruiser axles for a while too...

 

[Toyfj45]

there was a guy on pirate4x4 a few years back who had some sort of H diesel ( I think it was a 2H but not sure) and he had that thing cranked right up. domed pistons, tons of boost. bj on roids was his name I think... 42's on stock cruiser axles for a while too...

If i'm thinking of the same guy it was a 2H in a yellow 40, there was also a mag write up of it. I'll sift through my mags and see if i'm right.

 

[CDN_Cruzer]

very impressive!

Not surprisingly longevity was affected!

I really have to get my act together and get a turbo on my truck!

Matt

 

[ukaviator]

Drool!
Wish my little 3B sounded like that!!!

 

[DieselFumes]

Sweetness, wish he would have posted some more action...

Now when everyone is saying the longevity of the 2h doesn't hold up under that type of power turned to it, how about rebuiling up a 2h with some beef, like a stud girdle for the crank, some upgrades to the lower end like rods/ bearings/ pistons etc? Does anyone know of people doing these type of things to the beloved 2h? Where is a good source look for parts like that or do you think it would be 1-off items?

Are the blocks weak if everything else is built up? WHere are the weak points and can they be addressed without going to a different motor?

 

[Dougal]

Are the blocks weak if everything else is built up? WHere are the weak points and can they be addressed without going to a different motor?

Indirect injection engines usually crack heads.
It's a combination of the high compression needed for them to start reliably and the pre-combustion chambers needing a big hole in the head which weakens it.

The 12HT being direct injection has a stronger head and lower compression, but then the questions about crank strength arise.

 

[prado t]

The right foot has alot to do with holding that motor together. Notice that the driver doesnt have it to the govenor for more than say 4 seconds (roughly). 21 to 1 compression at thise IP settings woud kill that thing in about 10-15 seconds unless he is using Mahle low compression pistons and the stiffener plate .
Slightly off topic , For a 6BT cummins to work like that , the compression gets knocked down to 12-14 to1 @ 40- 80lbs manifold pressure.
Very impressive , thanks Tapage

 

[Dougal]

Slightly off topic , For a 6BT cummins to work like that , the compression gets knocked down to 12-14 to1 @ 40- 80lbs manifold pressure.
Very impressive , thanks Tapage

No way they go that low. You can't start a compression ignition diesel with compression that low.
Cummins 4BT's (4 cyl versions of the 6BT) run 40psi boost with no internal mods.
Carcrafter's 4BD1T head gasket let go somewere above 60psi on a bone stock motor. His custom fuel pump delivers up to 370 cc/1000 shots.
BMW's 535d motor runs 42psi boost stock with compression of 16.5:1.

 

[Tapage]

The comments sound like he's blown that engine up and going for a 12HT. Is that right or have I misinterpreted?

Nop you are right .. runnin it at 4300 RPM ( I'm scared over 3000 rpm ) :roll: the interesting issue it's he was using and old engine .. so we can be sure how long the 2H holds that kind of powa, boost and rpm ..

There's some discussion about the 12HT cranks being a lot smaller than 1HD-T cranks. Does the 2H share a crank with either?

yes share the same crank .. same short block.

If your toyota uses an A type injection pump then you might be able to use injector elements from an Isuzu A type pump (made by Bosch/Zexel/Diesel Kiki).
My Isuzu has 10mm pump elements. They can produce up to 180 cc/100 strokes.

The stock inline are IIRC 7.5mm and he was using 8.5 from volvo IP parts .. not sure which one .. but was on the 163cc

 

[Dougal]

The stock inline are IIRC 7.5mm and he was using 8.5 from volvo IP parts .. not sure which one .. but was on the 163cc

Actually the 180 cc/1000 shots was from a pump with 9.5mm plungers.
The 10mm plungers (which my Isuzu has) can put out over 200 cc/1000 shots.
Sadly I don't have enough under bonnet real-estate to fit turbos capable of burning that cleanly and cool enough.

 

[Tapage]

Actually the 180 cc/1000 shots was from a pump with 9.5mm plungers.
The 10mm plungers (which my Isuzu has) can put out over 200 cc/1000 shots.
Sadly I don't have enough under bonnet real-estate to fit turbos capable of burning that cleanly and cool enough.

actually my turbo it's very capable .. and what I'm missing it's more diesel .. and then need to worry about my water temp ..

 

[Dougal]

actually my turbo it's very capable .. and what I'm missing it's more diesel .. and then need to worry about my water temp ..

I'd need 50psi boost to burn that much fuel. That means two turbos in series.
No doubt I'd find water temp problems somewhere along the way.

 

[blis]

Nop you are right .. runnin it at 4300 RPM ( I'm scared over 3000 rpm ) :roll: the interesting issue it's he was using and old engine .. so we can be sure how long the 2H holds that kind of powa, boost and rpm ..



yes share the same crank .. same short block.



The stock inline are IIRC 7.5mm and he was using 8.5 from volvo IP parts .. not sure which one .. but was on the 163cc

Here in finland you can count yourself lucky to find 2H thats got under 600 000km on it and afaik that 2H was no different from them...

Also, bit about IP's 12ht's pump got 9.5mm standard elements IIRC and from what i've heard thats what he's gonna slap to it (hopefully soon)...

There are also minor differences in 2H and 12HT blocks, most notable being the oil injection in 12HT block which should give a ton of reliability especially at high boost/injection...


ps. theres rumor going on that someone built 400hp hj61 last summer here in finland

 

[Talos]

ps. theres rumor going on that someone built 400hp hj61 last summer here in finland

 

[gbentink]

Hi gents, this is all very exciting. Loved the video, just wish he had fitted a smaller ehaust housing and an intercooler.

The lack of smoke at 4300rpm is probably a combination of enough exhaust flow to move the turbine, the compressor side getting into an efficient area and the governer cutting off the fuel

For me it proves the rod strength. 160cc might give 800-900nm.

As for pump specs, all the different comments make it very confusing. I have a 12HT pump at home that I pulled all the governer out of to see how it all worked. I am not that interested in putting it all back together.... (In fact, what I want to do with it is install a servo to control rack position and do away with everything else. For timing I was wonding about fitting a cam phase changer on the front instead of the centrifugal advance. Both those things controlled by a basic computer could be fun).

So, I might have to lay at least the 12HT conjecture to rest by removing an element and measuring. See how I go.

I will ask the gent on you tube if he can be more specific about the actual plunger parts used. Would be great if he could.

The ported head 12HT I am building is 95% done (only rear main seal, oil pickup, stiffening plate, sump and injector lines to go)...soon to be in and running