Thread: Mod 300tdi vs isuzi 4bd1t

Stick with the Defender Transfer Case... the High range gearsin will be better for Towing

Steve

Originally Posted by rick130

Dougal, Pat's talking about the 300tdi.

Oh right, my apologies.

Why change a 2.5 for a 2.8?
If towing is the aim, another litre of displacement will never disappoint.
Sure you can turn up the 300tdi, but you can do exactly the same to the Isuzu. At the same boost and EGT you'll be putting out 50% more torque and power without the hassle or detonation of lpg.

Originally Posted by xrayxray

Hi 87 County,
Is your Diesel gas tuned for economy or power and is it the Dieselgas brand or an Ecoshot or other.

Cheers Mickey.

dieselgas fitted by klr, tuned for best power/economy tradeoff I believe

I tow 2.5 tonnes of boat with my tdi 300 130 and it is no fun.
Gear changes are frequent to keep the motor happy and any sort of a slope means a low range start.
The vehicle handles the load well,but 2.5 litres of diesel just hasnt got the bottom end punch to do the job well.
My defender is stock in power and gearing .

My point in all this is that you could hot up the Tdi engine,better turbo,intercooler D/Gas the works for less than a 2.8-isuzu swap,less than half the cost.I have towed 1.9T with mine for alot of miles and it just needs that bit more than it has and an upgrade would do it.D/gas has alot going for it,I'm like most of you on this forum I don't want extra power for the sake of less engine life but it has been around along time and long haul companies are using it to there advantage.My tax check this year is buying mine. Pat

Someone in another thread said that international don't make the 2.8HS anymore. It is understandable, the way emission regs are changing.

I tried searching today for the international site that had the international 2.8HS engine. It has been a few years since I had last been there.

The only international site I can find now has a different range of engines now, but this one would have no trouble towing (if it would fit into the engine bay). MaxxForce™ 5 for Class 4–5 Trucks - MaxxForce™

I have a turbo from a maxxforce 5 engine that I hope to fit to my 4bD1-T.

So it doesn't look like you could get a 2.8HS, but the turbo and manifold (to upgrade a 300Tdi) should still be available (as spare parts).

Good alternatives to a 4BD1-T are the toyota 14BT and 15BT

I am currently looking into the availability of the Garrett vnt and manifold off a 2.8.
not having much luck sourcing info on them.

Cheers Mickey.

Originally Posted by Bush65

Someone in another thread said that international don't make the 2.8HS anymore. It is understandable, the way emission regs are changing.

I tried searching today for the international site that had the international 2.8HS engine. It has been a few years since I had last been there.

<snip>

It's still listed on the MWM International site MWM INTERNATIONAL Motores