Outer Limits 4x4 Board

so who out there can help me with some info as to which would be the best turbo to fit to a 1hdt engine
gt2860r
gt2871r
gt2876r
will only be looking at the .64 turbine housing size as i think the .86 is to big and will take to long to spool up

What power/torque do you want to make and where do you want it to happen? They are not a bolt on job, adapters, oil and water lines, dump pipe, inlet and outlet ducting have to be altered to make it fit.


Andy

Answered on IH8MUD.

Basically the 2860R will have no problem keeping up with more than stock boost and and intercooler.
The bigger two are pointless unless you're making a dyno queen. You'll give away more and more of the rev range with nothing happening.

Andy, on a 1hdft with safari FMIC, looking around 100+ rwkw and healthy torque would the 2860 be slightly too small?

Also is their any great difference in the 60r being single bearing core and the 71r being dual bearing? is it just down to the size of the wheels required a tad more support.

andy thanks for that not sure on what power and torque i wanting to make what sort of power and torque does the standard ihdt put out. from your experience what would be a good garrett to upgrade too. yes i know i will have to make an adaptor and do the oil and water lines, this is the easy part. for the money that i have to spend to get the ct26 rebuilt and high flowed i thought i would just get a new garrett ball bearing turbo so i can get the same or more power and torque compared to the ct26 being hiflowed.

The 1HD-T is a 4.2 L (4164 cc) straight-6 SOHC turbocharged diesel engine. Bore is 94 mm and stroke is 100 mm, with a compression ratio of 18.6:1. Output is 162 hp (121 kW) at 3600 rpm with 267 ft·lbf (361 N·m) of torque at 1400 rpm.

* 1989 Toyota Land Cruiser 80

Find out the stats on your motor.

then pick a decent amount for the HP output as that what you need to work out the air flow required.

It's in 2 parts really... air flow then turbo pressure, you then have numbers that you can place onto a turbo map, doing that lets you pick the perfect turbo, which might not even be a turbo on your list.

You can wok out pressure drops
temp of the compressed air
Size of intercooler required
How long it'll take the pressuize the whole system(lag)

You could slap any old turbo on the motor I guess, but if you paid $2000 for the turbo and it ended up giving you a 3 second lag and popped a conrod out well you might not be happy with the end result.

Just like a guy who sent in a pic to 4wd action mag of a busted conrod from a turbo kit slapped on a non-turbo diesel costing $6000 for the parts and stuff to be put on in the backyard with the end result costing over $10,000 to get everything fixed up after the conrod let go.

A slightly different situation for you but not a happy result for this guy seeing as the 4wd is only worth $7000.

We have only put Garretts on a 79 series 1hdfte and a 1hz 100 series. the 1hz had a safari kit on it and the bb Garrett was considerably better. It went very well, so I would expect the same results from a 1hdt. Its a job just like the patrols, nothing is bolt up, everyhting has to be made to amke it fit.


Andy

andy what would you say would be the better turbo for the 1hdt the gt2860r or the gt2871r

Unfortunately I am not going to give out info that took me time and money to find out. If you want a guaranteed result, pm or contact me. If not look at the Garret website and learn how to size a turbocharger and then back yourself to make sure its correct.

What works in thoery isn't correct in pratice, I have results to prove it.


Andy

Dzltec wrote:Unfortunately I am not going to give out info that took me time and money to find out. If you want a guaranteed result, pm or contact me. If not look at the Garret website and learn how to size a turbocharger and then back yourself to make sure its correct.

What works in thoery isn't correct in pratice, I have results to prove it.


Andy

WHAT then why are advertising this on your sign line? Plus if you aren't even in that state he wouldn't go to you anyway. i hope you would change your mind if he gave you a call I think just asking for the type of turbo isn't giving to many secrets away.

so what are the cons to running tt on a inline 6 diesel?
besides the xtra dosh.

Frp88,

nowhere in my sig line does it say I have to give out info that I have worked and spent money on to find out. Iv'e been more than happy to answer a lot of questions that people ask. We do quite a few sales to interstate customers, in this day and age, borders and distance don't really mean anything. So I choose to keep my info to myself. If you wish to buy a guaranteed result, then you will find out what turbo I would recommend.



Andy

frp88 wrote:

Dzltec wrote:Unfortunately I am not going to give out info that took me time and money to find out. If you want a guaranteed result, pm or contact me. If not look at the Garret website and learn how to size a turbocharger and then back yourself to make sure its correct.

What works in thoery isn't correct in pratice, I have results to prove it.


Andy

WHAT then why are advertising this on your sign line? Plus if you aren't even in that state he wouldn't go to you anyway. i hope you would change your mind if he gave you a call I think just asking for the type of turbo isn't giving to many secrets away.

I would tend to agree with Andy mate

There's a difference between helping out guys with diagnosis and basic faultfinding tips on the net and handing over R and D results that cost time and money to develop. I have had heaps of help from andy in the past and he's given up time on the phone to try and diagnose turbo issues for me. As for interstate - I for one have already decided to make the drive down to melbourne to see andy when i get the chance as he's the only one who has both the competence, AND the facilities to work on a diesel. And that's coming down from sydney.

im okay with andy not wanting to give out his info he spent the money to do the research so he can tell me what he sees fit

ok well im down to 2 to choose fromthe gt2860rs or the gt2871r. the only diff between the 2 is the comp wheel side
gt2860rs
ind 47.2
exd 60
trim 62
a/r .60

gt2871r
ind 49.2
exd 71
trim 48
a/r .60

now from the research i have done most people are saying the gt2860rs is the way to go. will come on boost early and give good low to mid power increases. where as the gt2871r i have been told wont start making good boost untill about 2000 rpm and will need internal fuel pump mods to keep the fuel up to it or you will be overfueling it at low rpms to have enough fuel up higher.then you get other people telling you it will be a great turbo to fit. so is there anyone out there that has fitted the gt2860rs or the gt2871r to a 1hdt landcruiser or patrol and what did you have to do to the fuel pump internal mods or just adjustments.what sort of power are you making now and was it the right turbo to fit or should you of gone with something else. any info would be great

ledgend80 wrote:ok well im down to 2 to choose fromthe gt2860rs or the gt2871r. the only diff between the 2 is the comp wheel side
gt2860rs
ind 47.2
exd 60
trim 62
a/r .60

gt2871r
ind 49.2
exd 71
trim 48
a/r .60

now from the research i have done most people are saying the gt2860rs is the way to go. will come on boost early and give good low to mid power increases. where as the gt2871r i have been told wont start making good boost untill about 2000 rpm and will need internal fuel pump mods to keep the fuel up to it or you will be overfueling it at low rpms to have enough fuel up higher.then you get other people telling you it will be a great turbo to fit. so is there anyone out there that has fitted the gt2860rs or the gt2871r to a 1hdt landcruiser or patrol and what did you have to do to the fuel pump internal mods or just adjustments.what sort of power are you making now and was it the right turbo to fit or should you of gone with something else. any info would be great

Hi mate, ive just fitted a gt2860rs in place of a safari t3 unit. It starts boosting from about 800rpm and gets 5psi@1000rpm and 15psi@2000. It holds that until 4000rpm without a problem. Its the .64 hot side.
I also have a boost compensator fitted to the IP and a top mount intercooler. It will go in next week for a tune so i'll let you know what the results are. The turbo is good for up to 25psi so i should have plenty of boost to play with.

Cheers Den

who is doing the tune in melb for you

ledgend80 wrote:who is doing the tune in melb for you

I get it done at ARB Bendigo, they have been great with the tuning ive had done in the past.

Cheers Den

how come you went with gt2860rs

wondering peoples opinon about the gt2871r on a 1hdt which would be the best 48 trim, 52 trim or the 56 trim all with the .64 turbine any thoughts would be great

there are 3 GT2871R turbos in the current garrett catalog.
p/n472560-5015
p/n743347-5002
p/n774147-5001


P/N 472560-5015
Compressor A/R 0.06 INDUCER 51.20 TRIM 52
turbine A/R 0.64 EXDUCER 46.95 TRIM 76
not suplied with waste Actuator
compressor inlet and outlet are bolt on type

P/N743347-5002
Compressor A/R 0.06 INDUCER 53.13 TRIM 56
turbine A/R 0.86 EXDUCER 46.95 TRIM 76
option of a 49.19 inducer trim 48
compressor is clamp on style inlet and outlet

P/N774147-5001
Compressor A/R 0.06 INDUCER 49.19 TRIM 48
turbine A/R 0.64 EXDUCER 46.95 TRIM 76


there are 3 more option with this part number
-5002 inducer 49.19 trim 48 turbine A/R 0.64
-5003 inducer 53.13 trim 56 turbine A/R 0.64
-5004 inducer 53.13 trim 56 turbine A/A 0.86
compressor inlet and outlet are bolt on type


now if the turbo dsltec (andy) uses in one of the GT2871Rs and he spent the time and money to find out what combo works best, i think he is well with in his rights not to share.

ledgend80 wrote:wondering peoples opinon about the gt2871r on a 1hdt which would be the best 48 trim, 52 trim or the 56 trim all with the .64 turbine any thoughts would be great

try emailing garrett to find out what effect the different compressor options will have.

yeah i know andy wont tell me what turbo it is that he uses and that is fine by me. i dont even know if it is at gt2871r that he uses. and i have been on the garrett website and looked at the different compressor maps. and by seeing all the people that have viewed this post seems that there are a few people interested in it. what i was after is if any one has fitted or knows which would be the best uited to the 1hdt.

ledgend80 wrote:yeah i know andy wont tell me what turbo it is that he uses and that is fine by me. i dont even know if it is at gt2871r that he uses. and i have been on the garrett website and looked at the different compressor maps. and by seeing all the people that have viewed this post seems that there are a few people interested in it. what i was after is if any one has fitted or knows which would be the best uited to the 1hdt.

I'd like to know aswell. i think asking garrett is about the only way we'll find short of testing


this might be a help
http://www.dieselpowermag.com/tech/dodg ... index.html

brad-chevlux wrote:i think asking garrett is about the only way we'll find short of testing

Which is what some people have spent thousands of $ doing.. cant blame them for not telling anybody.

in theory. comparing those 2 turbos the 2871 48 trim is the next step up from the 2860 62 trim. the lower the trim the faster it should come on. the comp wheel is only a couple mm bigger but has an 11mm bigger exducer that is like a high flowed 2860. comes on faster and for longer. in theory. i hate theory.

Ive chatted to a guy that has put a 2871 on a GQ2.8 with a 12mm plunger in the fuel pump, just wondering if the smaller 2860 with the smallest trim would be good on a GQ2.8 with the standard pump wound right up?? I have a large FMIC, 3" exhaust and larger air intake and airbox. but the standard garret is still fairly slow to spool, would like to upgrade to a good BB and i think the exhaust side side of the standard is the same bolt config of the 2860 etc.. hmmm can anyone throw in their cents of opinion on this please

lewie.

I had pm'd andy awile ago but that was b4 i had modified with pump/boost tune by a professional and installed the big cooler, and he thought it would be too big and said he could supply 1 that would work, but i didnt want to pay over a grand for something i havnt seen or have any clue on what he was supplying or weather he had actually upgraded any 2.8 gqs??

anyways

I'm no expert on the 2.8, but IMO you would be better off with one of the GT25 turbos.

the 2.8 won't have enough exhaust flow to get the bigger GT28xx turbos to make boost at lower RPM

pretty sure the standard one is a gt25 of some type. And the fact that vn15 on here has put one of the larger gt28s on his 2.8 and has worked well just thought maybe the smallest of them would be an upgrade seeing as i think its already got a 25 on it...???

2.8 guy, you should look at the GT25 series of turbos. Much quicker to spool on a smaller engine.