Best turbo
Diesel Enthusiast
Joined: Jan 2010
Posts: 204
Likes: 13
From: Maryland
I've ran a D-tech 65/62/12 in a number of different configurations over the past several years. For about a year it was a single. Then over the next couple of years, it was sitting on top of several different primaries.
Runs good as single with 5x12s. Set it at 40-42psi, and you won't likely have any problems with it. That's the good.
The bad is.... when you start to push it any harder, some issues may arise. The standard thrust bearing doesn't hold up so well to high drive pressures. Doesn't take much wear before the compressor wheel can come forward and smack the front cover, $$$$. And, the arm holding the wastegate pucks can't take much drive pressure either. Too much, and it will bend back leaving the wastegate hanging open. Be aware though, some of the other major manufacturers have had the same problems, but most have since beefed their turbos up. Not sure if D-tech has.
D-tech comments on how their wastegate flows more, well it doesn't really. Mine came with ~12mm ports, which is more or less the same as a lot of the other turbos. But the pucks are big enough to drill out a little bigger. Be aware again, bigger ports mean more pressure on the wastegate arm. And more of a chance that it'll bend.
Mine works great now, but I'm not sure that it still can be called a D-tech. It has a different compressor wheel and a STEEL 360 thrust bearing. I milled out the whole wastegate area. Enlarged the ports to flow more than twice as much as the original ports. Oversize Inconel pucks with a heavy duty wastegate arm.
Right now I'd call it a pretty awesome turbo. Even with the compounds hitting 90psi+ boost, the drive pressures are 1 to 1, due to all of the wastegate work.
The D-techs are pretty much worth what they costs. If you want a better turbo, then you'll need to spend more. Personally, I'd go for one of JKidd's 63/68/12s with a 360 thrust bearing.
Runs good as single with 5x12s. Set it at 40-42psi, and you won't likely have any problems with it. That's the good.
The bad is.... when you start to push it any harder, some issues may arise. The standard thrust bearing doesn't hold up so well to high drive pressures. Doesn't take much wear before the compressor wheel can come forward and smack the front cover, $$$$. And, the arm holding the wastegate pucks can't take much drive pressure either. Too much, and it will bend back leaving the wastegate hanging open. Be aware though, some of the other major manufacturers have had the same problems, but most have since beefed their turbos up. Not sure if D-tech has.
D-tech comments on how their wastegate flows more, well it doesn't really. Mine came with ~12mm ports, which is more or less the same as a lot of the other turbos. But the pucks are big enough to drill out a little bigger. Be aware again, bigger ports mean more pressure on the wastegate arm. And more of a chance that it'll bend.
Mine works great now, but I'm not sure that it still can be called a D-tech. It has a different compressor wheel and a STEEL 360 thrust bearing. I milled out the whole wastegate area. Enlarged the ports to flow more than twice as much as the original ports. Oversize Inconel pucks with a heavy duty wastegate arm.
Right now I'd call it a pretty awesome turbo. Even with the compounds hitting 90psi+ boost, the drive pressures are 1 to 1, due to all of the wastegate work.
The D-techs are pretty much worth what they costs. If you want a better turbo, then you'll need to spend more. Personally, I'd go for one of JKidd's 63/68/12s with a 360 thrust bearing.
Last edited by Drothgeb; May 26, 2013 at 10:02 AM.
Diesel Fan
Joined: Jul 2011
Posts: 23
Likes: 0
From: SLC
I've ran a D-tech 65/62/12 in a number of different configurations over the past several years. For about a year it was a single. Then over the next couple of years, it was sitting on top of several different primaries.
Runs good as single with 5x12s. Set it at 40-42psi, and you won't likely have any problems with it. That's the good.
The bad is.... when you start to push it any harder, some issues may arise. The standard thrust bearing doesn't hold up so well to high drive pressures. Doesn't take much wear before the compressor wheel can come forward and smack the front cover, $$$$. And, the arm holding the wastegate pucks can't take much drive pressure either. Too much, and it will bend back leaving the wastegate hanging open. Be aware though, some of the other major manufacturers have had the same problems, but most have since beefed their turbos up. Not sure if D-tech has.
D-tech comments on how their wastegate flows more, well it doesn't really. Mine came with ~12mm ports, which is more or less the same as a lot of the other turbos. But the pucks are big enough to drill out a little bigger. Be aware again, bigger ports mean more pressure on the wastegate arm. And more of a chance that it'll bend.
Mine works great now, but I'm not sure that it still can be called a D-tech. It has a different compressor wheel and a STEEL 360 thrust bearing. I milled out the whole wastegate area. Enlarged the ports to flow more than twice as much as the original ports. Oversize Inconel pucks with a heavy duty wastegate arm.
Right now I'd call it a pretty awesome turbo. Even with the compounds hitting 90psi+ boost, the drive pressures are 1 to 1, due to all of the wastegate work.
The D-techs are pretty much worth what they costs. If you want a better turbo, then you'll need to spend more. Personally, I'd go for one of JKidd's 63/68/12s with a 360 thrust bearing.
Runs good as single with 5x12s. Set it at 40-42psi, and you won't likely have any problems with it. That's the good.
The bad is.... when you start to push it any harder, some issues may arise. The standard thrust bearing doesn't hold up so well to high drive pressures. Doesn't take much wear before the compressor wheel can come forward and smack the front cover, $$$$. And, the arm holding the wastegate pucks can't take much drive pressure either. Too much, and it will bend back leaving the wastegate hanging open. Be aware though, some of the other major manufacturers have had the same problems, but most have since beefed their turbos up. Not sure if D-tech has.
D-tech comments on how their wastegate flows more, well it doesn't really. Mine came with ~12mm ports, which is more or less the same as a lot of the other turbos. But the pucks are big enough to drill out a little bigger. Be aware again, bigger ports mean more pressure on the wastegate arm. And more of a chance that it'll bend.
Mine works great now, but I'm not sure that it still can be called a D-tech. It has a different compressor wheel and a STEEL 360 thrust bearing. I milled out the whole wastegate area. Enlarged the ports to flow more than twice as much as the original ports. Oversize Inconel pucks with a heavy duty wastegate arm.
Right now I'd call it a pretty awesome turbo. Even with the compounds hitting 90psi+ boost, the drive pressures are 1 to 1, due to all of the wastegate work.
The D-techs are pretty much worth what they costs. If you want a better turbo, then you'll need to spend more. Personally, I'd go for one of JKidd's 63/68/12s with a 360 thrust bearing.
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