Max power/torque from a 13BT how much potential is there? Share your info

[Hulsty]

There is abit of info out there on other engines and their potential but I have not really found much on the 13BT. Sooo..... post up your engines perfomance data and what the specs are!

What I am particuarly keen on is how far have people pushed the 13BT and what (if anything) has broken. I have seen a photo of 13BT pistons where the ring lands appear to have flogged out the let go, have not heard anything of the head lifting off the block at high boost or internal engine failures.

Does anyone have info on the standard fuel pump and how much capacity it has?

First up my mates BJ74 ute, it produced 74rwkw on 37'' tyres through a H55F and 4.11 diffs. 3'' exhaust, stock dump pipe, no intercooler and would up max fuel screw and boost (not sure to what levels.



Here is mine, yet to be on the dyno, it will be once I get a new turbo on it, it runs a full 3'' exhaust and dump pipe with single muffler, water to air intercooler (on the small side) 21.5psi boost and I have about 3 turns on the max fuel screw and I have adjust up the "guide bushing" no changes to the boost compensator. To drive on 33'' tyres it is very similar to my dads stock VDJ79 which puts out 430Nm torque, so I must be up around that figure.

I know there are a couple of modded ones around on this site, 14BT pumps etc.

The only other dyno info I have seen is one that dynoed 98rwhp, I am trying to get more info on it.

 

[Hulsty]

Here is a link to a good thread on the 13BT fuel pump adjustments. I am trying to track down the next pages to see what the injection volumes are.

https://forum.ih8mud.com/diesel-tec...-fuel-adjustment-power-increase-answered.html

Stolen for the thread.

"The "Guide Bushing" should be a wheel that you can click up or down (once you remove that hex bolt). Clicking it up, will spin a threaded wheel clockwise, toward front of engine, reducing the spring tension beneath the boost-compensation diaphragm. This will effectively allow more fuel per boost; in other words, as you gain boost you will get fuel sooner, thus raising boost faster. This is a great adjustment for power vs. smoke. Clicking it down, will move the wheel closer to the diaphragm, in effect tightening the spring under the diaphragm, thus requiring more boost to move the diaphragm (and therefore reducing power, smoke, etc.).

The "boost compensator adjustment" is often called a "smoke screw" on other pumps. This adjustment is changing the non-boost level of the boost compensator; in other words, the amount of fuel the engine get's before the boost starts to push on the diaphragm. It's setting the unboosted diaphragm depth."

 

[cicak]

FOr Hultsy

Mods done to RED a RJ77 with a 13B-T stuck in it.

1. 13B-T fully stripped and rebuilt and added 14B-T CAM, Fuel PUMP and Timing gear
2. Modified Turbo from 7M
3. Fuel pump from 14B-T fitted so its now rotary not mechanical
4. Modified the air intake to be almost twice the size by cutting and adding a strip to top and bottom
5. Added intercoolder
6. Boost set to 21PSI - FIXED.
7. Added Wastegate and welded up factory hole

I have no idea of HP or TORQUE but this thing does pull HARD. Its a kitten until you step on the gas slowly or hard it reacts the same your pushed back in the seat. It will take of in 2nd without battling an eyelid and 3rd with minimal clutch slippage.

it is driveable from 1800-2500 then change up and it pushes yuou back it the seat in 3/4/5th. Wind out to 3500 and it will give even a modified 7M powered RJ77 a run for its money.

Running 8/39 (4.88) it was too low ratio even with 35's and would wheelspin
we now running 9/41 (4.11 i think) and its a little slower as we also turned down the fuel to reduce the smoke

DYNO due soon as its reregistered and I will post it. It must have way over 400NM of torque

Pics soon.


regards.

 

[Hulsty]

Are you running a external waste gate? any pics?

Did you find the standard airbox limiting? I have been toying with the idea of changing the airbox lid to the FZJ79 type.

 

[cicak]

Are you running a external waste gate? any pics?

Did you find the standard airbox limiting? I have been toying with the idea of changing the airbox lid to the FZJ79 type.

YEs external wastegate added pics later its in the shop again

Yes so we added extra capacity from the airbox to the turbo - we doubled its size.

THe DYNO should reveal all soon with what else needs to be done.

 

[Dougal]

First big question, what can the injection pumps put out for cc/1000 shots?

 

[cicak]

First big question, what can the injection pumps put out for cc/1000 shots?

not sure I am a IT geek not a diesel makanik

I will investigate and see what I come up with. is there a formulae I can use based upon fore the specs of the injectors? Or do I need to do an actual test?

 

[Dougal]

not sure I am a IT geek not a diesel makanik

I will investigate and see what I come up with. is there a formulae I can use based upon fore the specs of the injectors? Or do I need to do an actual test?

You really need a bench test of the injection pump.

 

[Hulsty]

I have the engine workshop manual, the pump rpm would be half the crank rpm.

 

[cicak]

You really need a bench test of the injection pump.

I figured so and the cost of removing the pump and flying it over the ocean for a few hours is not worth the cost as its only ever going back to the shop who set it up not a local shop

 

[gbentink]

So at 14.3cc/cyl for 200 strokes, you are at 71.5cc/cylinder for 1000.

You can see there is big potential in the pump. They look identical to the 12HT pump with 2 less cyl.

Not big in the fuel department in stock settings, but neither should it be given the stock power.

looks like if full 21mm of rack used (assuming same as 12HT), you might be able to get around 150cc or even more......

 

[cicak]

HUltsy the RED monster is offically back on the ROAD stuck the rego sticker on at 2.00am this morning after being blacklisted for 15 months and 3 days. DOn't ask but it cost me $7000 to put it back on the road including rego and insurance.

NOw I can go get it DYNO'd and see if the 13B-T monster pushes 500Nm torque or not. we suspect somewhere close. But i Need to install a EGT which got stolenm while it was off the road first.

more next week. We doing a shakedown run this weekend in it.

 

[cicak]

I figured so and the cost of removing the pump and flying it over the ocean for a few hours is not worth the cost as its only ever going back to the shop who set it up not a local shop

Sabah has the best diesel tuners in Malaysia . The dyno shop can only tune ECU chips for diesels not manual pumps

 

[Hulsty]

Sounds good, looking forward to the results, I have order a new turbo for mine. Hopefully I will have it installed before the queens birthday long weekend.


https://forum.ih8mud.com/diesel-tech-24-volts-systems/458353-toyota-ct26-upgrade-13bt-12ht-1hdt-1hdft.html

 

[cicak]

i need to do rear shocks ffirst and put the road 33"s on it before: the rear non existant and the dyno shop tell me they cannot tune non ecu diesels they do not have the skills - oh s***.

 

[Hulsty]

Thats dissapointing. Questions for everyone, has anyone found their intake system to be a restriction? I run a totally standard intake and filter with safari snorkel, wondering if it will be ok at 22psi.

My mate recently had his 1HZ+T dynoed at 120rwkw @14psi and it is now suffering from intake restriction if he wants to go higher. Standard airbox,filter with a safari snorkel.

My new turbo arrives next week, should have it on that weekend.

 

[Dougal]

Intake restriction is easy to measure. Get yourself a "donaldson informer" or similar device made just for the purpose.

They thread into the inlet pipe (can be put remote on a line) and read the max vacuum that is pulled. As well as letting you see how much restriction you've got, they show when your filters are clogged.

Intake restrictions don't magically appear as a kw limit, instead it's just another pressure loss in the system that makes everything work harder.

 

[Hulsty]

Intake restriction is easy to measure. Get yourself a "donaldson informer" or similar device made just for the purpose.

They thread into the inlet pipe (can be put remote on a line) and read the max vacuum that is pulled. As well as letting you see how much restriction you've got, they show when your filters are clogged.

Thanks for they I will look them up, do they read/hold the maximum value?

Intake restrictions don't magically appear as a kw limit, instead it's just another pressure loss in the system that makes everything work harder.

Correct, in this case on the dyno when they pushed it harder the intake pipes started to collapse, though I am not sure what the measured restriction was.

 

[Hulsty]

I just remember I already have a gauge I can use to measure vacuum, an old boost gauge, though it does not have a maximum hold feature. It worked well for measure vacuum in my brake system.

 

[Dougal]

Thanks for they I will look them up, do they read/hold the maximum value?

Yes, it locks on max vacuum, there's a release button on the end to reset it.