OM606 Turbo Selection for Truck application
OM606 Turbo Selection for Truck application
What is the above mentioned "GT2359" off of?
GTB2260 turbos have been common in north america since ~2007 on Mercedes and BMW 3L diesels. They get into boost well under 2000rpm, the BMW version has a VBand turbine inlet that would be the easiest to make an adapter for. So I think that's your best bet for a good deal on a modern Garrett VNT turbo capable of maybe 300hp. The compressor flows about as much as the HE221, but the VNT makes it spool very fast and its not going to be too restrictive at higher rpm.
The later generations GTB/C/D supposedly have a much higher, ~+25% improvment, efficiency from the turbine so I think thats makes them much less likely to have back backpressure/EGT issues at higher RPM compared to similar a size GTA / GT.
With a compound setup you could run a GT17 VNT in front of an 35-40lb/min turbo. Would be a pretty cool 250hp setup with super fast spool. You might even be able to find a GTB1756 with a K14 flange and bolt it right to the manifold. Honestly if you're on stock elements and are fine with 200hp, then a GTB1756 would work well for spool. Back pressure would be higher, but that's not an issue if you're not running up above 4000 often. Plus you would have really good exhaust braking capability.
If you're still running the R150, then you will really want to limit boost&fuel at low rpm. 15psi enough for +300lb-ft and enough to break things if you're not careful. 200hp /300lb-ft seems like plenty to get a little yota down the road. If didn't already have a 7.5mm 603 pump, then I would stick with the stock 606 pump and a 2260. I'm at 5-10k elevation, so a little larger turbo would be helpful. More HP is just more problems and my FJ60 has enough problems as it is.
The HE221W is a cheap, reliable option. However, as you already pointed out that the 37lb/min compressor is a bit too big to spool very well. To really spool well at that low RPM then you're going to want ~25lb/min compressor range. Something like the GT17 maybe HX20.
What is the above mentioned "GT2359" off of?
GTB2260 turbos have been common in north america since ~2007 on Mercedes and BMW 3L diesels. They get into boost well under 2000rpm, the BMW version has a VBand turbine inlet that would be the easiest to make an adapter for. So I think that's your best bet for a good deal on a modern Garrett VNT turbo capable of maybe 300hp. The compressor flows about as much as the HE221, but the VNT makes it spool very fast and its not going to be too restrictive at higher rpm.
The later generations GTB/C/D supposedly have a much higher, ~+25% improvment, efficiency from the turbine so I think thats makes them much less likely to have back backpressure/EGT issues at higher RPM compared to similar a size GTA / GT.
With a compound setup you could run a GT17 VNT in front of an 35-40lb/min turbo. Would be a pretty cool 250hp setup with super fast spool. You might even be able to find a GTB1756 with a K14 flange and bolt it right to the manifold. Honestly if you're on stock elements and are fine with 200hp, then a GTB1756 would work well for spool. Back pressure would be higher, but that's not an issue if you're not running up above 4000 often. Plus you would have really good exhaust braking capability.
If you're still running the R150, then you will really want to limit boost&fuel at low rpm. 15psi enough for +300lb-ft and enough to break things if you're not careful. 200hp /300lb-ft seems like plenty to get a little yota down the road. If didn't already have a 7.5mm 603 pump, then I would stick with the stock 606 pump and a 2260. I'm at 5-10k elevation, so a little larger turbo would be helpful. More HP is just more problems and my FJ60 has enough problems as it is.
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