Best Turbo for 3B Diesel...
- Thread starter tlcruiserman
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rchalmers3
I speak Toyota
Tapage is.
https://forum.ih8mud.com/diesel-tech-24-volts-systems/223346-tencha-bov.html
You need a throttle plate to run a blowoff valve, the toyota diesels are some of the few that have them.
cruisedeisel
Toyota's for life
im no turbo freak
but the air research turbo of the 3.0 l mercedez 5 cyl deisel has got me in aww. its great for wheeling, boost right away. i can roast most 4 and 6 cylinder vehicles uphill.
but the air research turbo of the 3.0 l mercedez 5 cyl deisel has got me in aww. its great for wheeling, boost right away. i can roast most 4 and 6 cylinder vehicles uphill.
Tapage
Club 4X4 Panamá
as soon as 1200 rpm I can get 4 - 6 PSI of boost .. 2k rpm full boost .. ( 20 PSI it's most that I seen in my 1HD-T )
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Great thread and very timely for me, finally turboing the 3B.
The turboglide response from what you say is what I'm after because I was going to buy the turboglide manifold and was going to run a Garrett turbo of some description anyway and I want to be making boost down as low as possible but I don't want it to run out of puff in the top end and run somewhere around 14-15psi with maybe some journey's to 20psi if the engine will survive.
So I rang Turboglide today and John rang me back and I quizzed him about which turbo he uses. The website actually states 2 different turbos for 3B Landcruisers GT25 and GT28. But John said they only sell a T25 for the 3B. Interesting I thought and then I quizzed him about the A/R of the turbo and what turbo he uses. He told me he has used the same turbo on 3B's since 1974 and done over 400 of them personally with no failures or warranties. Plenty with over 365k on the clock.
He wouldn't tell me exactly what turbo he uses saying lots ask all the time but he said its a commonly available turbo you can buy off the shelf from Garrett. After bugging him some more saying if I'm paying all this money for the kit then I want to know what turbo I'm buying I asked him what the A/R of the turbine was. John being the nice helpful guy he was "reluctantly" told me and it would suprise everyone here. He wouldn't tell me what the compressor a/r was but I've narrowed it down to only 2 turbos.
I asked him why he uses that turbo and that particular turbine a/r and the obvious answer was "It works best for the 3B". I was concerned he was using old school T25's still which he kept calling the turbo but he assured me its the modern day equivalent (same specs) in the GT series but is definetly using a T25 flange not T28. But the turbo probably wouldn't get a 2nd glance buying it off the shelf based on the recommendations here for 3B turbine a/r, I'll say that much.
Thanks again John your secrets safe with me
The turboglide response from what you say is what I'm after because I was going to buy the turboglide manifold and was going to run a Garrett turbo of some description anyway and I want to be making boost down as low as possible but I don't want it to run out of puff in the top end and run somewhere around 14-15psi with maybe some journey's to 20psi if the engine will survive.
So I rang Turboglide today and John rang me back and I quizzed him about which turbo he uses. The website actually states 2 different turbos for 3B Landcruisers GT25 and GT28. But John said they only sell a T25 for the 3B. Interesting I thought and then I quizzed him about the A/R of the turbo and what turbo he uses. He told me he has used the same turbo on 3B's since 1974 and done over 400 of them personally with no failures or warranties. Plenty with over 365k on the clock.
He wouldn't tell me exactly what turbo he uses saying lots ask all the time but he said its a commonly available turbo you can buy off the shelf from Garrett. After bugging him some more saying if I'm paying all this money for the kit then I want to know what turbo I'm buying I asked him what the A/R of the turbine was. John being the nice helpful guy he was "reluctantly" told me and it would suprise everyone here. He wouldn't tell me what the compressor a/r was but I've narrowed it down to only 2 turbos.
I asked him why he uses that turbo and that particular turbine a/r and the obvious answer was "It works best for the 3B". I was concerned he was using old school T25's still which he kept calling the turbo but he assured me its the modern day equivalent (same specs) in the GT series but is definetly using a T25 flange not T28. But the turbo probably wouldn't get a 2nd glance buying it off the shelf based on the recommendations here for 3B turbine a/r, I'll say that much.
Thanks again John your secrets safe with me
Great thread and very timely for me, finally turboing the 3B.
The turboglide response from what you say is what I'm after because I was going to buy the turboglide manifold and was going to run a Garrett turbo of some description anyway and I want to be making boost down as low as possible but I don't want it to run out of puff in the top end and run somewhere around 14-15psi with maybe some journey's to 20psi if the engine will survive.
So I rang Turboglide today and John rang me back and I quizzed him about which turbo he uses. The website actually states 2 different turbos for 3B Landcruisers GT25 and GT28. But John said they only sell a T25 for the 3B. Interesting I thought and then I quizzed him about the A/R of the turbo and what turbo he uses. He told me he has used the same turbo on 3B's since 1974 and done over 400 of them personally with no failures or warranties. Plenty with over 365k on the clock.
He wouldn't tell me exactly what turbo he uses saying lots ask all the time but he said its a commonly available turbo you can buy off the shelf from Garrett. After bugging him some more saying if I'm paying all this money for the kit then I want to know what turbo I'm buying I asked him what the A/R of the turbine was. John being the nice helpful guy he was "reluctantly" told me and it would suprise everyone here. He wouldn't tell me what the compressor a/r was but I've narrowed it down to only 2 turbos.
I asked him why he uses that turbo and that particular turbine a/r and the obvious answer was "It works best for the 3B". I was concerned he was using old school T25's still which he kept calling the turbo but he assured me its the modern day equivalent (same specs) in the GT series but is definetly using a T25 flange not T28. But the turbo probably wouldn't get a 2nd glance buying it off the shelf based on the recommendations here for 3B turbine a/r, I'll say that much.
Thanks again John your secrets safe with me
Housing A/Rs are usually cast into the outside of the housing, if not there then just inside the neck. I believe turboglide were using a slightly bigger housing that most, but we don't know which wheel is inside. It's the combination of A/R and wheel diameter which determines your tip speeds.
The tag garrett puts on their turbos is all you need to unlock all the secrets of what is inside.
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He did say and I hope he doesn't mind me saying but the turbo is rated to 3.9L and is also used on an Isuzu.
Like I said though he said you can buy the turbo off the shelf and there are only 2 possible turbo's it can be based on the a/r he told me.
Like I said though he said you can buy the turbo off the shelf and there are only 2 possible turbo's it can be based on the a/r he told me.
He did say and I hope he doesn't mind me saying but the turbo is rated to 3.9L and is also used on an Iszuzu.
Like I said though he said you can buy the turbo off the shelf and there are only 2 possible turbo's it can be based on the a/r he told me.
Yes the same T25 compressor is used on the TB25 used on the Isuzu 4BD1T from 1988 and intercooled 4BD2T. However these Isuzus used at least two, possibly three different turbine wheels and different A/R housings.
The earlier Isuzu turbos were freefloating (no wastegate) with a 0.89 A/R turbine housing, the later were wastegated with a 0.64 A/R housing. The later turbo has a bigger diameter wheel, which is also longer and has a smaller trim.
Some garrett codes from the Isuzu TB25 turbos.
466409-2 - 4BD2T probably wastegated
466898-6 - 4BD1T no wastegate
466409-1 - 4BD2T wastegated
465675-1 - 4BD1T early wastegated
There are heaps more, I have nine different Isuzu part numbers for 3.9L diesel turbochargers.
So yeah, many different ways to skin a cat.
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None of those codes match so far so what are the other 5 codes?
The others I have Isuzu codes, which need cross-reference to get garrett codes.
But what's the point really? There's only a small range of parts it can be and previous uses show they all work well. It just depends where you want the match to lie.
A bigger exhaust turbine will give you more top end power and more bragging rights, smaller gives you more low end boost and torque. There are aftermarket and wrecker parts which fit the bill or you can just buy a kit.
i have a couple of turbo 3bs a garret t3which is pretty good and sounds great and I have a ihi ball bearing turbo that is awsome I get over 25psi by 3000rpm
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Turboglide only use a 2 1/4" mandrel bent exhaust in the full kit. John doesn't recommend fuel aneroids either. He said he has seen too many fail and flow too much fuel into the engine.
I rang AXT also and the nice lady told me they use a T3 non ball bearing water cooled turbo but she didn't have the specs of the turbo at hand and said it was a custom built turbo. AXT also doesn't recommend or sell a fuel aneroid even though they recommend it on their website and she also said they don't recommend running an oil cooler if you go offroad.
I'd love to see dyno runs for power but also when and how much boost each turbo makes in the rev range.
I rang AXT also and the nice lady told me they use a T3 non ball bearing water cooled turbo but she didn't have the specs of the turbo at hand and said it was a custom built turbo. AXT also doesn't recommend or sell a fuel aneroid even though they recommend it on their website and she also said they don't recommend running an oil cooler if you go offroad.
I'd love to see dyno runs for power but also when and how much boost each turbo makes in the rev range.
You can see my before and after dyno run in my thread. I reach 10 psi around 2200-2300 rpm
https://forum.ih8mud.com/diesel-tech-24-volts-systems/180800-turboglide-install-my-truck.html
https://forum.ih8mud.com/diesel-tech-24-volts-systems/180800-turboglide-install-my-truck.html
Sounds strange.
Aneroids don't increase fuel flow, they reduce it when off boost. If one does fail then the worst that can happen is the full boost fuel level is delivered, which results in some smoke off boost.
However, when the factory aneroid on my Isuzu pump failed (diaphragm wore out) it reduced fuel to the zero boost level. The aneroid on my Isuzu is fully open at 4-7psi boost.
Someone asked about the butterfly on a rotary pump 3B II. It helps reduce engine shake on shut down. These engines shut down by cutting the fuel supply to the IP.
G'Day Fella's,
TLCruiserman/Michael and others, I have an original 11/1989 model, BJ73 MWB L/Cruiser, and was looking to turbocharge the 3B engine.
It has 370,000 ish Kms on the original untouched engine, and I was wondering if it may be getting a bit old for Blow Job?
I've owned this cruiser since new and have changed both engine oil and filter, every 5,000 Kms since new, and have never flogged the engine.
I'd appreciate any advice and recommendations, any of you blokes may have.
D'oh!
Homer
TLCruiserman/Michael and others, I have an original 11/1989 model, BJ73 MWB L/Cruiser, and was looking to turbocharge the 3B engine.
It has 370,000 ish Kms on the original untouched engine, and I was wondering if it may be getting a bit old for Blow Job?
I've owned this cruiser since new and have changed both engine oil and filter, every 5,000 Kms since new, and have never flogged the engine.
I'd appreciate any advice and recommendations, any of you blokes may have.
D'oh!
Homer
