4D56 VGT Turbo

The Tick

The Tick

Well-Known Member
After looking over their website they atleast seem quite knowledgable. I wasn't able to find any reviews on them as a company though. I am tempted to just order one and see...
 
That is an interesting option, already because I always hear there was no possibility to control a VNT accurately enough by boost only … even though at least IVECO had a pure pneumatic/mechanical solution as far as I am informed. The VNT on the 4d56 in our L200 is vacuum-solenoid-controlled and governed by the ecu. Apart from enhancing characteristics when properly working, I can attest that this solution can be quite a hassle. I have even been tempted at times to retrofit the former wastegate-turbo.
Greetings from Munich (not even too far from Saito)
 
floP said:
That is an interesting option, already because I always hear there was no possibility to control a VNT accurately enough by boost only … even though at least IVECO had a pure pneumatic/mechanical solution as far as I am informed. The VNT on the 4d56 in our L200 is vacuum-solenoid-controlled and governed by the ecu. Apart from enhancing characteristics when properly working, I can attest that this solution can be quite a hassle. I have even been tempted at times to retrofit the former wastegate-turbo.
Greetings from Munich (not even too far from Saito)
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Thanks for the reply. I could never get solid performance or spec info from SAITO so I passed, can’t imagine that the performance difference is that big.
 
Oh, that isn't exactly what I wanted to point out. I wanted to report from the original Mitsubishi VNT-setup which I consider a bit wobbly. Its mechanism tends to stick sooner or later. A slightly bigger unit (as the SAITO thing) might be able to make more oomph at higher revolutions (I reckon about 300 Nm/140 hp) without sacrificing torque at the lower end. The idea of a pneumatic governed VNT is very appealing to me, but might lead to a remarkably slower reaction.
Hth,
with compliments!
 
The Tick said:
www.saito.it

Turbocharger Variable Geometry Kit for Mitsubishi Pajero, Pajero Sport, L200 and Hyunday Galloper 2.5L | SAITO

For off-road Mitsubishi and Hyunday 2.5l with 4D56 and 4D56T engines: immediate turbo reaction, torque advance, power increase, fuel consumption reduction.
www.saito.it www.saito.it

Anyone know anything about this VGT turbo made specificly for the 8 valve 4D56? Boost controlled so you don’t need an ecu or two valve controller to run it. Pretty much plug and play.
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I've also run across this recently and just came here to see if anyone else has any success.

Andres Muriel at Saito claims it's not an original Mitsubishi vnt, but rather a Garrett base VNT with a Saito "tuned" compressor wheel.

He also confirms it will bolt on to a 4D56/ 4D56T, as in the models mentioned in the add.

He believes it should also bolt up to the 4d56 in an L300, though he cautioned that it's not the same size as the stock T04.

When I asked him for any compressor flow maps, or any data he has on it, he said the following:

"We don't have any data, but with a correct fuel pump calibration you can easily gain 30/40% of power more compared to the original."

I've just asked him how exactly they "tuned" their compressor wheel, if they never did any testing or recorded any data.

Maybe they just eyeballed it and found it made a bit more boost?

Personally, I like that it's a Garrett but I really dislike that they are claiming to have "tuned" it but have zero data on their product.

You'd think that that would be a requirement for tuning a compressor wheel...

I imagine the process as:
1. Make a flow map of the one they're basing theirs on.
2. Modify (tune) their compressor to adjust that map
3. See how the flow maps compare
4. Repeat steps 2 and 3 until desired results achieved.
 
Well this statement just broke my BS meter.
"We don't have any data, but with a correct fuel pump calibration you can easily gain 30/40% of power more compared to the original."
Needle jumped right off the gauge, pity guess I will go back to buying that bridge my neighbor is selling. :D
 
Not_Todd said:
I imagine the process as:
1. Make a flow map of the one they're basing theirs on.
2. Modify (tune) their compressor to adjust that map
3. See how the flow maps compare
4. Repeat steps 2 and 3 until desired results achieved.
Click to expand...
Wouldn't that be nice...

The general process is:
1. swap out some parts
2. add some "better" parts
3. claim massive improvements based on proprioceptive system testing (seat of the pants)
4. maybe provide vague/inconclusive video/evidence of the improvements (without any actual pre/post empirical testing)
 
sk66 said:
Wouldn't that be nice...

The general process is:
1. swap out some parts
2. add some "better" parts
3. claim massive improvements based on proprioceptive system testing (seat of the pants)
4. maybe provide vague/inconclusive video/evidence of the improvements (without any actual pre/post empirical testing)
Click to expand...
Don't forget step 5. Profit! Lol
 
bikerjosh said:
Well this statement just broke my BS meter.
"We don't have any data, but with a correct fuel pump calibration you can easily gain 30/40% of power more compared to the original."
Needle jumped right off the gauge, pity guess I will go back to buying that bridge my neighbor is selling. :D
Click to expand...
Right!? Hahaha

He just got back to me about how they "tuned" it without collecting any data.

"With "tune" I mean modify the actuator and compressor bracket for example. The turbo is the original Garrett."

It seems to me that they should be able to provide the Garrett flow maps if it's a Garrett.

I'm curious if they're hesitant to do this as it would reveal what turbo it is and we could just go get the stock "untuned" one from Garrett? Hahaha
 
Not_Todd said:
Right!? Hahaha

He just got back to me about how they "tuned" it without collecting any data.

"With "tune" I mean modify the actuator and compressor bracket for example. The turbo is the original Garrett."

It seems to me that they should be able to provide the Garrett flow maps if it's a Garrett.

I'm curious if they're hesitant to do this as it would reveal what turbo it is and we could just go get the stock "untuned" one from Garrett? Hahaha
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Yeah... He's just responded that they won't release the original Garrett part number. Lol

I think it's interesting that there's a Garrett vgt out there that'll work on a 4D56, how to figure out which one it is? No idea. Lol
 
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