I need a bigger engine....

Just buy a land cruiser, it will complete your grey nomad look you are going for with that massive caravan thingy:p

Maybe a bigger motor 8.2 four stroke Detroit 230 HP @2800 510 ftp@1700 nice clean motor no injector pipes no electronics:) Does`nt know what a hill or headwind is. With the added bonus of a 4" exhaust from the back of the V thru between the seats you wont need a heater and bout 18 MPG:o

Quote:

---

Originally Posted by Sitec

6Bdt... Fit your box, sound nice, have smoother torque delivery so the box might survive, and have plenty of go... or rebuild your engine with larger turbo, dustbin of an intercooler and lighter flywheel so it'll rev and give it some legs at the top end like the newer diesels... Just my thoughts... :)

---

Almost but not quite.
Compound turbo and heavier flywheel.

Light flywheels are complete **** on a diesel. When you double the torque, you need to double the flywheel to keep torsional vibrations the same.

Quote:

---

Originally Posted by lokka

6BD1T will give it more go and it will drink more

The 1HD-FT in my old mans 80 pulling either the small 18ft 1500KG van or the 24ft 2500KG tajhmahal on tyres will happly put the diesel out the back at 17Lper100K tho a head wind will see it go up near 20Lper100K

My non turbo county pulled my rangie 1900KG+900odKG float along the flat would happly do 120kph tho back to 2nd on the real steep hills near sussex inlet and did roughly 13Lper100K

My TDI disco towing my camper trailer fully loaded plus loaded roof rack which was mainly wind resistance and unsure on weight of trailer could not hold speed in 5th and was happy to sit on 100K in 4th running 265x75x16 on standard gearing returned 13.8Lper100K

Tart up the 4BD1 maby fit a better rad so it dont get hot or try and scoop more air through the current set up and take in the sights cruising in a county wins hands down as long as the sound of the isuzu dosent bother you :cool:

---

That hits the nail on the head Chris,

JC

Quote:

---

Originally Posted by Vern

Just buy a land cruiser, it will complete your grey nomad look you are going for with that massive caravan thingy:p

---

...Not helping Damien....:p


and I am not grey yet, I will however one day be completing the whole grey bit but not for quite some time thanks!!!!!

JC

Interesting discussion. We're considering a fully height van for an extended trip in a few years time, and intending on it being towed with a 4bd1T...

JC - IIRC you also have A/C fitted? If so I wonder how much effect that's having on the cooling side of things? I'm guessing at this time of year you probably weren't running it but would it affect things even just from an airflow perspective?

Will be really interesting to hear back about what change a rebuild and tickle up make if you do them.

Steve

Hi Steve, yes A/C condenser is in, but not utilised at the time. The temp isn't really an issue it just creeps up to around 90 from the usual 82, but this is cool weather so i am anticipating issues in higher ambients.

I am confident that with some restored compression, a set of overhauled injectors etc will see a marked improvement, although it seems reading these posts that maybe it isn't all that bad anyway.

You'll have to wait a while for more reports Steve,:(, won't be in holiday mode again for quite a time. Still can test the effects towing car trailers about for work :)

JC

If he buys a Cruiser and a Nomad sized van he'll be able to walk from one end of the island to the other without going outside.

Aerodynamic aids have almost no effect under about 60 mph. Frontal area is the factor at low speeds. I still have the text books "Principles of Vehicle Selection" and "Motor Truck Engineering Handbook". Use the given formulae to calculate horsepower requirement according to frontal area, mass, rolling resistance, grade, etc.

Quote:

---

Originally Posted by Brian Hjelm

Aerodynamic aids have almost no effect under about 60 mph.

---

Ever ridden a bike Brian?;)
At 20km/h wind resistance can be a huge concern. It all depends how much power it takes and how much power you have.

But regardless of power. There are fuel economy savings to be had at all speeds with aerodynamic improvements.

Quote:

---

Originally Posted by Brian Hjelm

Frontal area is the factor at low speeds. I still have the text books "Principles of Vehicle Selection" and "Motor Truck Engineering Handbook". Use the given formulae to calculate horsepower requirement according to frontal area, mass, rolling resistance, grade, etc.

---

Force = Cd*A*1/2*airdensity*velocity^2

Cd for a landrover is about 0.6 (pretty lumpy, many cars are below 0.3).
A is your frontal area in square metres.
Air density is ~1.2 kg/m^3
Velocity is in metres/second. 100km/h = 27.7777778 m/s.