Diesel Anyone?

[Tom Roper]

Diesels are nice if you have the load that needs a diesel to tow/haul it.

But they won't save you any money, not at the beginning, not at the end, not in the middle.

- You pay $5k up front.
- You have to drive it 100k miles for fuel savings to payback the up-front cost.
- If you do that, you've depreciated it. The resale on 100k mile diesels is no better than gassers.
- If you don't do that, you don't get the full fuel savings payback.
- Diesel engine warranties are good, but limited. If they find water in your fuel, and you need injectors at 8 X $500 + 8-12 hrs labor, it's on you.
- If you own it beyond its warranty, you accept the risk of VERY expensive repairs.
- Everything about diesel trucks cost more, not just the engine, brake boosters, transmissions, driveline, PCMs, injector pumps, fuel filters, oil changes, you name it.

I traded my 2001 Silverado 2500HD Duramax for the Titan. The Duramax gave me plenty of worry, but not a single problem. It had better highway passing power than the Titan. It was like owning a power boat. I'm glad to be rid of it though.

[Still thinkin]

I love the thought of a Nissan Turbo Diesel.Aftermarket is simply huge on the big three's TD's,.I have been unfortunate enough to have tried playing with some upgraded diesels, and been embarrassed by the result.Diesels aren't for everyone but they are certainly for me.I wanted a 6.0L powerstroke when I bought my Titan but the extra $10000.00 and the fact it came wrapped in a Ford turned me away.
If Nissan released a turbo diesel Titan I would trade my Titan in a heartbeat.

[SupraTitan]

Originally Posted by abmobil

i dont know much about his subject, ive heard over and over again that a inline 6 is a inherently balanced design right out of the box. MY question is would a inline 8 be balanced to or not?

Yes an inline 8 has perfect primary and secondary balance. They where actually rather common in the 50's, but as you can imagine are a pretty long engine.

[Petzi-bear]

Hello

It is my understanding that the 05 titan will be available in a alternative fuel configuration.


As for Diesel engines. I am not sure but they could the know how from Renault or form Nissan Diesel, which is a different Company.

Renault builds Semi's in Europe. So they shouldbe able to find an engine big enough for the Titan.


Although I like the V10 Diesel VW puts in the Touareg more torgue than the Viper engine ...



Petzi-Bear

[61 Bel Air]

Originally Posted by SupraTitan

The most reliable, powerful, simple and strongest diesel used currently in a pickup truck currently is the Cummins, an I-6. An inline 6 uses 7 main bearings, a V6 uses 4 and a V8 uses 5, which one do you think would have the strongest bottom end. When an engine is producing in excess of 600 ft/lbs of torque for hundreds of thousands of miles this is a huge advantage for the I-6. You also get an even firing order with the inline 6, a powerstroke every 120 deg. of crankshaft rotation contributing to a perfect primary and secondary balance. A v config requires heavy counterweights on the crank. Also in a turbo configuration an Inline design allows the turbo to mounted closer to the head and capture more energy from the exhuast gasses, a V design requires the turbo to be much more downstream. The only advantage I can come up with for a V design is packaging size, thats about it.

Doesn't the Inline 6 need more mains bearings because of the length of the crank? Seems to me because of that length, without the 7 mains you would have way too much flex. Just my .02

[SupraTitan]

Originally Posted by 61 Bel Air

Doesn't the Inline 6 need more mains bearings because of the length of the crank? Seems to me because of that length, without the 7 mains you would have way too much flex. Just my .02

Thats true, but what you end up with is a crank supported by 7 bearings instead of 4 as in a V6, each bearing will see much less force as there are more bearings to carry the load. This i why you see engines like the Nissan RB26dett and toyota 2jz-gte inline 6's able to produce ridiculous power output numbers that even the vipers V10 can't match in modified form. The only engine configuration I can think of that betters the inline 6 is the horizontally opposed 6 used by porsche. The only imbalance the I6 suffers from is the tendancy for the motor to want to move upwards after a powerstroke, the H6 cancels out this polar movement.

[PolarisTitan]

Originally Posted by Derodeo

That would be the ideal for my purposes too. Quadrasteer is the one truly great feature that GM still has all to themselves. But apparently almost no one has any use for a full size truck box any more....

I have heard in Motor Trend that they are testing a Titan with Quadrasteer, and that it is a parternership with GM. It was in the column "Heard on the road" anyone else here os this?

[Gig'em]

I read somewhere that Nissan leased the design from Delco who makes the Quadrasteer for GM (as I understand it). Hopefully its NOT a partnership with GM. The last thing Nissan needs is Detroit's influence on our Titans.

[Zardoz]

Originally Posted by Gig'em

I read somewhere that Nissan leased the design from Delco who makes the Quadrasteer for GM (as I understand it). Hopefully its NOT a partnership with GM. The last thing Nissan needs is Detroit's influence on our Titans.

Actually it is a very nice piece of gear. It is based on the Dana 60 axle.
The most rugged half ton axle that you can buy. Delphi is the vendor
who designed and made it. Titan with this axle in the back would be
great but the big tires would not fit as you have to use 245 tires on
the quadrasteer units to allow them to steer. They also would have to
move the leaf springs in to make it fit. I would love to see this kinda
technology offered in the future for the Titan.

Zardoz

[FoFiddy]

Originally Posted by Gig'em

I read somewhere that Nissan leased the design from Delco who makes the Quadrasteer for GM (as I understand it). Hopefully its NOT a partnership with GM. The last thing Nissan needs is Detroit's influence on our Titans.

I don't know why Nissan would have going to GM for 4ws. Nissan has had HICAS since the early 90's on the 240SX and 300ZX TT. I mean I know it's a solid Rear axle VS independant rear suspension but cumon nah.

[PrerunnerGreg]

Supra, all inline motors are balanced, but arent 4 stroke opposed 4s, and 4 stroke 90 degree v8's balanced also?

[TitanHauler]

I have to agree with SupraTitan on this one. Nothing matches the 600lb feet of torque from the I6 Cummins Dodge is using. And I might add, that 600lb feet is available at 1600 RPMS. Also, the I6 Cummins is the only diesel that can be rebuilt 3 times and go 1 million miles easy on the original bottom end. Try that with a V8 Powerchoke or Duramin.

[Still thinkin]

To bad the cummins comes wrapped in a dodge.

[Titan4x4Aggie]

Originally Posted by FoFiddy

I don't know why Nissan would have going to GM for 4ws. Nissan has had HICAS since the early 90's on the 240SX and 300ZX TT. I mean I know it's a solid Rear axle VS independant rear suspension but cumon nah.

That is all passive steering to reduce oversteer and unstable driving situations, similar to the mazda's DTSS (or is it DSTT?) on the 2nd gen RX-7.

Those systems are done with compliant bushings, NOT active steering links and a steering computer that measures speed and steering wheel input.

[calgary_redneck]

Originally Posted by SupraTitan

Thats true, but what you end up with is a crank supported by 7 bearings instead of 4 as in a V6, each bearing will see much less force as there are more bearings to carry the load. This i why you see engines like the Nissan RB26dett and toyota 2jz-gte inline 6's able to produce ridiculous power output numbers that even the vipers V10 can't match in modified form. The only engine configuration I can think of that betters the inline 6 is the horizontally opposed 6 used by porsche. The only imbalance the I6 suffers from is the tendancy for the motor to want to move upwards after a powerstroke, the H6 cancels out this polar movement.

haha supratitan its very obvious your a huge toyota fan how ever don't fool yourself an inline 6 has its down sides too