Bolt on turbo upgrdae - 13BT/12HT/1HDT and 1HDFT

[CustomTurbos]

@ Scanas. 100rwhp is more than you get with a good stock 12HT - typically 67kw. Of course this all changes drastically with no mods except boost and fuel to about 120-130rwhp......

I can do it without a exchange, just costs a bit more because I need to source additional parts. I do have quite a few CT26 turbos in my private stock. This new one isnt the only one I do; I do a nice upgrade for those pushing their stock fuel pump to the limit too or stock rebuilds or totally to your spec.

Send me a PM, I'll send you back my contact details.

Regards, Graeme

[CustomTurbos]

I agree the factory dump is excellent - no so for 1HDT. Lumps and bumps in the 1HDT version.

I have a design for what I reckon is an excellent dump for the CT26 and it uses a separate tube for the waste. I machine the back of the turbo to fit a 2.5" to 3" concentric reducer then 3" 90. the tube goes right to back of turbo so theory being you dont get turbulent flow on exit of the turbine. Just a theory. I will try it on mine first and see if it makes a difference.

Remember fuel - power. If there was a slight drop in boost due to the extra flow causing your compressor wheel to choke, the boost ill lower and that means so will fuel. My gut feel is that your dumps is excellent, but your turbo couldnt do it. Try it with the new one when you get it and see. I also reccomend 19psi or so if your fuel screw is maxed out. The aneroid maxes at 17psi so you need to set your boost a little higher than that to prevent resonance and guarrantee you get full fuel.

yeah i have the dyno sheet here, ive taken a couple of photos of it but they keep coming up blurry when i take the pic. I will see if they have i in there computer and get them to copy it onto a disk. we done a variety of tests with the dump pipes as i had already had the custom dump done before i took it to the dyno but from experience with toyota 12HT's 1HDT'S ect ect the guy said as soon as he seen it that i would be better off with the standard one. I thought pfff yeah right but from the tests we did over 4 different boost and fuel settings the hp was 5 to 7 hp lower with the custom dump (it was a well made pipe). He said that the factory dump on a CT26 has great flow and after all the factory dump is 2.75 inches anyway.

[SCANAS]

Thanks for the offer, My turbo is only a few years old so should give me a few more years yet. @ 10psi it made 105hp, could run it at 14psi but it would need an intercooler which is more $$$ and stuff to worry about.

[Hamo]

I keep thinking we'll hear- 'just 3 easy payments of $49.99 over 3 months'. I like this thread and am real keen on giving it a go as my turbo needs rebuilding anyway.

Well it not to bad realy Pm the guy and see for your self.

I dont know why he wont post up the price (maybe it agaist forum rules being a tec section)

And shaun
I will fork out the cash i just carnt send anyone money whos only info i know of is on an internet forum i did say by PM

And yes i want to buy 1 out right as if i dont like it i can stick my old 1 back on
I also want to get it ceramic coated buy the same mob that did the dump pipe
http://www.hpcoatings.com.au/" onclick="window.open(this.href);return false;

And as it my daily driver i dont want it off the road for more than 1 day

To much to ask i dont think so

[RED60]

Chris12ht75, can you post up ALL the current info on your motor and dyno sheets with ALL the information you have, no matter how insignificant it seems.... I/we will then have some sort of baseline to gauge any improvements... also you say that your motor is 60thou (1mm) oversize.... 60 thou is actually 1.5mm... so I'm interested in which it is, though in reality this is very minor....

[chris12ht75]

I will share some stuff on here but not to much as when i was doing my build no one was really interested in helping me or wanted to share specs. I'f Graeme needs the specs i'll give them to him via email but sorry i aint putting them on the forum. yeah sorry about the piston size, it is 60 thou oversize which is a bees dick shy of 1.5mm.

[RED60]

I will share some stuff on here but not to much as when i was doing my build no one was really interested in helping me or wanted to share specs. I'f Graeme needs the specs i'll give them to him via email but sorry i aint putting them on the forum. yeah sorry about the piston size, it is 60 thou oversize which is a bees dick shy of 1.5mm.

Unfortunately I don't have any new info to share really, other than what is on various sites available to anyone.... but anyway share what you can so I/we have some idea of improvements achieved.....

[CustomTurbos]

Hi Chris,

So your engine is 4.11L, which will spool the turbo ~3% earlier in revs.

Your factory dump will also help. All in all I would hope for 15psi by 1600rpm on yours with both factors considered - we will see!

There are a few local boys that might also get the turbo installed, so the potential for dyno time is good.

Cheers,


"yeah sorry about the piston size, it is 60 thou oversize which is a bees dick shy of 1.5mm."

[CustomTurbos]

Hi Chris,

I did send a PM that I am not sure you received by the sound of your email where you can pay an additional core charge. If you dont send the core, you dont get the refund. So it's not too much to ask at all and I have offered it - I sent that PM on the 10th.

In future, if someones sends me a PM with request for info, I will also include my contact details at work, mobile #, email etc. Nothing funny going on here.

Cheers

I keep thinking we'll hear- 'just 3 easy payments of $49.99 over 3 months'. I like this thread and am real keen on giving it a go as my turbo needs rebuilding anyway.

Well it not to bad realy Pm the guy and see for your self.

I dont know why he wont post up the price (maybe it agaist forum rules being a tec section)

And shaun
I will fork out the cash i just carnt send anyone money whos only info i know of is on an internet forum i did say by PM

And yes i want to buy 1 out right as if i dont like it i can stick my old 1 back on
I also want to get it ceramic coated buy the same mob that did the dump pipe
http://www.hpcoatings.com.au/" onclick="window.open(this.href);return false;

And as it my daily driver i dont want it off the road for more than 1 day

To much to ask i dont think so

[rowenb]

He must be busy as he got straight back to me with a price and general info.

[CustomTurbos]

Thanks for the offer, My turbo is only a few years old so should give me a few more years yet. @ 10psi it made 105hp, could run it at 14psi but it would need an intercooler which is more $$$ and stuff to worry about.

Unless your turbo is a CT26, it kind of takes some of the gloss away of a purely bolt on solution anyway. Of course, maybe you sourced a 12HT exhaust manifold and CT26.... anyway, worth mentioning.

[chris12ht75]

Hi Chris,

I did send a PM that I am not sure you received by the sound of your email where you can pay an additional core charge. If you dont send the core, you dont get the refund. So it's not too much to ask at all and I have offered it - I sent that PM on the 10th.

In future, if someones sends me a PM with request for info, I will also include my contact details at work, mobile #, email etc. Nothing funny going on here.

Cheers
Hey mate was this directed at me the top part i mean, if it is i don't get it i got a pm just before that i replied to but nothing on the 10th.
Cheers, Chris

I keep thinking we'll hear- 'just 3 easy payments of $49.99 over 3 months'. I like this thread and am real keen on giving it a go as my turbo needs rebuilding anyway.

Well it not to bad realy Pm the guy and see for your self.

I dont know why he wont post up the price (maybe it agaist forum rules being a tec section)

And shaun
I will fork out the cash i just carnt send anyone money whos only info i know of is on an internet forum i did say by PM

And yes i want to buy 1 out right as if i dont like it i can stick my old 1 back on
I also want to get it ceramic coated buy the same mob that did the dump pipe
http://www.hpcoatings.com.au/" onclick="window.open(this.href);return false;

And as it my daily driver i dont want it off the road for more than 1 day

To much to ask i dont think so

[CustomTurbos]

Hi Chris, sorry for confusion, it was Hamo I was referring to. I think he has my details now. Cheers

To much to ask i dont think so

[CustomTurbos]

My biggest problem now is finding enough old CT26's that need a rebuild.... since suprisingly quite a few folk want to keep their old one. I can understand the reasons for that but didnt consider it.

[South]

I have a design for what I reckon is an excellent dump for the CT26 and it uses a separate tube for the waste. I machine the back of the turbo to fit a 2.5" to 3" concentric reducer then 3" 90. the tube goes right to back of turbo so theory being you dont get turbulent flow on exit of the turbine. Just a theory. I will try it on mine first and see if it makes a difference.

Unless you are welding the rear up so there is a bridge between the gate and the impeller then there is going to be no benefit for having a seperate tube. Otherwise there will be mass amounts of turbulence in the dump. 4" Dump would be best bet if your flowing a lot more than stock.

[80's_delirious]

4" Dump would be best bet if your flowing a lot more than stock.

seemed to do the trick, but was noisey

[CustomTurbos]

Man that is alot of oil in the dump - nice and shiney black

4" Dump would be best bet if your flowing a lot more than stock.

seemed to do the trick, but was noisey

[CustomTurbos]

[/quote]

Unless you are welding the rear up so there is a bridge between the gate and the impeller then there is going to be no benefit for having a seperate tube. Otherwise there will be mass amounts of turbulence in the dump. 4" Dump would be best bet if your flowing a lot more than stock.[/quote]

Your quite right, so of course I don't do it that way - I machine the housing back deeper than the bridge and to fairly tight tolerance. And, I do the machining with the flange for the dump bolted to the turbo, so it all matches true.

While I said before that I "havent" tried it, I have actually done the machining but never got around to finishing it off and installing it. My 1HD-FTE is waiting for the new turbo!

I have to settle for wathcing other people finish their projects.

Your truck would be a perfect candidate for this turbo. And you are in Perth like me. You could have a drag race with a non intercooled 12HT HJ61 - with your intercooled 1HD-FT that would be something

[South]

Well you could always donate one of your turbos to me and we can show everyone on the forum how good they might actually be.

Drag race a 5spd 1HD-FT that weighs well over 3t just sitting there. Would loose against a pushbike!

[80's_delirious]

Man that is alot of oil in the dump - nice and shiney black

4" Dump would be best bet if your flowing a lot more than stock.

seemed to do the trick, but was noisey

yeah pic was taken after turbo exploded and took out the pistons and valves along with it, the engine just started to run on oil as I shut it down

[CustomTurbos]

Well you could always donate one of your turbos to me and we can show everyone on the forum how good they might actually be.

Drag race a 5spd 1HD-FT that weighs well over 3t just sitting there. Would loose against a pushbike!

Fair enough. I coveted the 1HD-FT for many years and would still like to play with one. They (the VE pumped diesels) are really easy to adjust and get reliable peformance without an impact on economy (so long as the right foot doesnt get excited).

Even at over 3 tonnes, the old 1H-FT if tuned right, especially with a nice Safari intercooler, should really fly. I have driven a manual one that had the same kit, was only running 10psi and once the revs got up it really flew.

I am in Perth so you are more than welcome to organise a time to come and have a look. Only an 12HT to show you though and subject to Tims acceptance - since its his car.

[CustomTurbos]

Hi, well Tim and I will be heading over to get the HJ61 with the new turbo dynoed on tuesday 22nd Feb. We will also video it and take some in car video of gauges. Tim was unsure what boost he was running because his gauge only went to 15psi and the gauge was roof consol mounted so you couldnt see the tacho and boost at the same time. Now he has a 22psi gauge resting near the tacho so you should all see exactly what it does against the rpm.

One run on Vege Oil, one run on Bio Diesel. So, I dont expect to quite get the 160-170hp@ wheels that you would from straight Diesel, but should get within 10-15%. Lets see if the theory matches the practice! They do 90hp at wheels std.

[South]

Even at over 3 tonnes, the old 1H-FT if tuned right, especially with a nice Safari intercooler, should really fly. I have driven a manual one that had the same kit, was only running 10psi and once the revs got up it really flew.

I am in Perth so you are more than welcome to organise a time to come and have a look. Only an 12HT to show you though and subject to Tims acceptance - since its his car.

Yeh mines goes like a raped ape when moving, has no power issues. It has been tuned, only on stock 12psi boost though. Get into it in any gear and it boogies, but its no race car. Can easily tow at over 130kph and keep pulling strong.

But like you say, low down its wanting, this is just a tune away.

So you going to donate a turbo then

[CustomTurbos]

Well, as promised Tims 12HT was put on the dyno AND videoed.

I will hopefully post the video link on yioutube tonight. You can see the tach and boost gauge no problem and even get a look at the dyno hand controller at a few points to see what it is actually doing at the wheels.

Some interesting figures for you:

* stock car 220,000kms with last 80,000km on vege oil. Engine not been touched apart from external fueling screw.

CLEAN EXHAUST AT ALL LOADED RUNS!

- 1600rpm 1.2 Bar 65rwkw (~440nm at crank)
- 1800rpm 1.45 Bar 75rwkw (~450nm at crank)
- 2000rpm 1.45 Bar 83rwkw (~450nm at crank).
- 3000rpm 1.3 Bar 97rwkw

- 3400rpm 1.25 Bar ~100rwkw off dyno sheet.

Temperature was 36 deg C. Car had been dynoed immediately after driving in peak traffic, no intercooler. Intake crossover was measured at 105 deg C and rising. Never went over 600deg C on Diesel (did go to 660deg C on vege oil probably due to delayed combsution - needs to have timing advanced a bit)

All videoed. Will be YouTube loaded soon.

Clean exhaust at full torque and around 600 degrees EGT pre turbo.

Vege Oil

- 2200rpm 81rwkw 1.5 Bar, 660deg C
- 3400rpm 92rwkw 1.25 Bar 650deg C

The turbo wastegate actuator looks like it needs a heavy external spring added to assist with the top end boost, still does 18psi though at 3400rpm. It would go to 21psi, but when the wastegate opened, it then wouldnt close enough to hold the 21psi. That may have cost a little HP at the top revs, 10-20hp max at a guess. This is easy to add and best to do after an installation in case it isnt required.

[CustomTurbos]

Even at over 3 tonnes, the old 1H-FT if tuned right, especially with a nice Safari intercooler, should really fly. I have driven a manual one that had the same kit, was only running 10psi and once the revs got up it really flew.

I am in Perth so you are more than welcome to organise a time to come and have a look. Only an 12HT to show you though and subject to Tims acceptance - since its his car.

Yeh mines goes like a raped ape when moving, has no power issues. It has been tuned, only on stock 12psi boost though. Get into it in any gear and it boogies, but its no race car. Can easily tow at over 130kph and keep pulling strong.

But like you say, low down its wanting, this is just a tune away.

So you going to donate a turbo then

Low down, it is a smokey tune away from more torque. the factory spec turbo simply cant do the business down low.

This turbo, on yours set at about 17psi will entirely transform everything about your FT. This is not a max power option by any means, but drivability would be sensational. I cant possibly donate a turbo, but am happy to do the tuning (not installation for free).

I know the VE pump on the 1HD-X motors very well and my aim is always clean performance. Only takes an evening to tune properly. No dyno needed, but always nice to have one done to see what it does.

But it wont get near your 400HP XR6T....... obviously.

I am also working on getting more CT26 parts so that people can keep their old turbo and buy a bolt on.

[CustomTurbos]

Low rpm dyno run at full load:

http://www.youtube.com/watch?v=eDk76koZXZE" onclick="window.open(this.href);return false;

I would like to see anyone do that with a std CT26 with only 75cc of fuel.......

[CustomTurbos]

Another video also added to show exhaust smoke (or lack of). Follow the previous link, and check other videos

[Hamo]

So how we going with these turbo's
How far off until i see 1

[hulsty]

What you putting it in Hamo? I too hope to get one once the $$$$ are ready.

[hotgemini]

I will share some stuff on here but not to much as when i was doing my build no one was really interested in helping me or wanted to share specs. I'f Graeme needs the specs i'll give them to him via email but sorry i aint putting them on the forum. yeah sorry about the piston size, it is 60 thou oversize which is a bees dick shy of 1.5mm.

I've come across this a few times on different forums and it strikes me as petty, small-minded and childish. I found a shortage of readily available quality information and therefore I'm going to 'punish' those who come later by perpetuating that shortage.

Take a deep breath, a step back and a good hard look at yourself imho. why not be the better person and start establishing a public knowledge-base on the topic. Chances are that if you start, others will come later and build upon it.