Forum Discussion
kw/00 wrote:
I wished that engine was available to other brands of trucks such as Toyota. The Nissan has never caught my eye and frankly its not a truck that I would buy. However it would be nice in a Tundra. Or if GM got going on the rumored 4.5 duramax for the 1/2 tons that would fit the bill for a lot of RV 1/2 ton owners. Regardless I can see a lot of sales for Nissan due to the engine alone, good move on there part.
Looks like you'll likely get your wish. Hopefully Toyota will too produce a truck with decent payload. Here's my source- Do the other V8 diesels not use chains?
Or maybe they are not overhead-cam?
EDIT: This. I see elsewhere they are push rod.
It just seems like chains are pretty common in V8 overhead cam engines. FishOnOne wrote:
jus2shy wrote:
Surprised that the final mass is 800 lbs. That's pretty darn good. Also surprised that on another video, they stated payload of the Titan XD to be north of 2,000 lbs. So that payload and 12k towing is perfect for those that want a smaller 5'er or travel trailer. I think Nissan has targeted the right group. I also love how simplistic the compound turbo setup is. The turbo assembly only has 4 moving parts counting the wastegate, M2 turbine nozzle, and the turbine/compressor wheel assemblies for both turbos. Far more elegant than International's attempt with the VG turbo and large fixed turbo. Hopefully it works out in the real world as well.
Surprised Cummins used only 4 head bolts per cylinder and all that chain on the front of that engine is crazy.
What's wrong with 4 head bolts per cylinder? Ford ok'ed the use of that design in all of the 6.0 engines that went in their trucks. GM also had only 4 bolts/ cylinder in their 5.7 diesel and it was.....
Oh.............hmmmmmmm..........I see your point now! :B
As far as the mile long chain goes; what's wrong with that? Again Ford used that design with their Ecoboost and they had............... oh...........hmmmmmmmm...........I again see your point. :BFishOnOne wrote:
jus2shy wrote:
Surprised that the final mass is 800 lbs. That's pretty darn good. Also surprised that on another video, they stated payload of the Titan XD to be north of 2,000 lbs. So that payload and 12k towing is perfect for those that want a smaller 5'er or travel trailer. I think Nissan has targeted the right group. I also love how simplistic the compound turbo setup is. The turbo assembly only has 4 moving parts counting the wastegate, M2 turbine nozzle, and the turbine/compressor wheel assemblies for both turbos. Far more elegant than International's attempt with the VG turbo and large fixed turbo. Hopefully it works out in the real world as well.
Surprised Cummins used only 4 head bolts per cylinder and all that chain on the front of that engine is crazy.
I noticed the head bolt count as well... I hope that Cummins was able to dial in the clamping force needed to keep the head gaskets stable.
Time will tell...
As for the chains, it may be a non issue, I know that Ford has had good success with the huge and long timing chains on the OHC motors it has had for nearly 25 years.
Time will tell there too. M
Thanks!
Jeremiah- The chains bother me too. One for each cam shaft, one for the fuel pump and one for the oil pump I guess. My 2005 Passat TDI only had one for the oil pump and that quickly caused trouble. Luckily VW had a geared replacement for it.
Not sure if I buy the argument that chains are quieter than gears. But imagine the clockwork required to replace those 4 chains with gears. jus2shy wrote:
Surprised that the final mass is 800 lbs. That's pretty darn good. Also surprised that on another video, they stated payload of the Titan XD to be north of 2,000 lbs. So that payload and 12k towing is perfect for those that want a smaller 5'er or travel trailer. I think Nissan has targeted the right group. I also love how simplistic the compound turbo setup is. The turbo assembly only has 4 moving parts counting the wastegate, M2 turbine nozzle, and the turbine/compressor wheel assemblies for both turbos. Far more elegant than International's attempt with the VG turbo and large fixed turbo. Hopefully it works out in the real world as well.
Surprised Cummins used only 4 head bolts per cylinder and all that chain on the front of that engine is crazy.- Nope....nope, just can't do it . Tried to keep an open mind but I just can't. The Cummins in a Nissan just isn't happening for me.
spud1957 wrote:
What fuel pump does it have?
CP 4.2. I'm betting the reason why all current consumer diesels are running this pump (save for the 6.7 Cummins) is because they need the higher injection pressures to achieve finer atomization to meet emissions specs.
However, the most likely reason why the Cummins 6.7 can get away with the CP3 is because they probably built up plenty of emissions credits by pretty much meeting 2010 emissions back in 2007 and are now making use of those credits to keep producing the current engines we have. The peak pressure for a cp3 is like 23,000 psi versus the CP4 achieving 28 or 29,000 psi. I also think the emissions of the CP3 fueled Cummins 6.7 isn't that far off from 2010 EPA mandates (or maybe it's actually dead on in meeting them), so they can spread that credit over a large number of engines (if they're indeed using credits).
With the ISV, Cummins never had the opportunity to build emissions credits, so they have to meet all emissions specs today.- What fuel pump does it have?
- I wished that engine was available to other brands of trucks such as Toyota. The Nissan has never caught my eye and frankly its not a truck that I would buy. However it would be nice in a Tundra. Or if GM got going on the rumored 4.5 duramax for the 1/2 tons that would fit the bill for a lot of RV 1/2 ton owners. Regardless I can see a lot of sales for Nissan due to the engine alone, good move on there part.
