Thread: Its Time :(

Originally Posted by Eevo

4JX1 > 4BD1T

Nope. But thanks for playing.

You probably mean:
Stock 4JX1 just beats stock 4BD1T.

But
4BD1T with fuel screw turned eats 4JX1.
4BD1T with fuel screw removed and boost raised produces around 600Nm.

Originally Posted by Dougal

Perhaps not: RE: 'World's Fastest Defender' Shoot-out - PistonHeads

Ummm, if I read the article correctly, the only reason it won was because of the tyres.

And I quote:

In spite of a significant power disadvantage against some of the V8 entries, the title went to a TD5 Hardtop with a 239bhp diesel engine - thanks in large part to a set of Porsche Cayenne-spec Michelins, according to the vehicle's owner Charlie Fawcett.

"We are obviously very pleased to have won this event as we were up against some much more powerful opposition, including supercharged V8-powered vehicles," he said. "In the end though, the Michelin tyres really made a difference as we were able use every one of our 239bhp to easily win both of the timed circuit sprints, and the overall title.

So, had the V8's with loads more power been able to keep that power transferred to the ground, they'd have won it.

I'd hardly call this a thrashing.

Originally Posted by brenno

Ummm, if I read the article correctly, the only reason it won was because of the tyres.

And I quote:

In spite of a significant power disadvantage against some of the V8 entries, the title went to a TD5 Hardtop with a 239bhp diesel engine - thanks in large part to a set of Porsche Cayenne-spec Michelins, according to the vehicle's owner Charlie Fawcett.

"We are obviously very pleased to have won this event as we were up against some much more powerful opposition, including supercharged V8-powered vehicles," he said. "In the end though, the Michelin tyres really made a difference as we were able use every one of our 239bhp to easily win both of the timed circuit sprints, and the overall title.

So, had the V8's with loads more power been able to keep that power transferred to the ground, they'd have won it.

I'd hardly call this a thrashing.

Or:
The V8 dyno queens had more peak power but it was not in a usable form. The TD5's while down on peak power numbers had far more torque, more area under the curve and far better drivability.
Ultimately making a faster vehicle.

Which is why my 4BD1T and 3.9 V8 RRC's have similar peak power but the Isuzu is much faster and better to drive.

Originally Posted by Disco Muppet

If we got an identical vehicle, but different engines (V8 vs Td5) and gave each of us 10k, I'd bet the Td5 would win

Good luck OP

I don't agree with this at all when it takes $15000 to rebuild a td5 to a standard configeration, with $10000 I could build a 400+ hp engine and bring the box up to spec, other bits I'm not sure about like diffs and drive shafts, but I don't believe there would be any contest in strait line quarter mile type racing.... That's just my opinion, and if any one on here has a td5 that's a weapon and can pick me up for a test run then I would be interested in seeing how much you can get out of one? I would however think the life of a diesel would be severely reduced by increasing the performance the way we are talking about

Originally Posted by Dougal

Nope. But thanks for playing.

You probably mean:
Stock 4JX1 just beats stock 4BD1T.

cant say ive ever seen a non stock 4JX1

Originally Posted by Dougal

had far more torque,

i didnt see that written in the article

Originally Posted by Dougal

Ultimately making a faster vehicle.

peak power and drive ratio determine top speed.
not torque or area under the curve.

Originally Posted by Eevo

cant say ive ever seen a non stock 4JX1

They melt down often enough stock and have an obscure engine control system that not many people could tune.

Originally Posted by Eevo

i didnt see that written in the article


peak power and drive ratio determine top speed.
not torque or area under the curve.

Faster does not just imply higher terminal speed.

Originally Posted by Dougal

They melt down often enough stock and have an obscure engine control system that not many people could tune.

lol, they were the beta of the current gen diesel engines.
aust diesel mechanics are idiots stuck in the stone age

Originally Posted by Dougal

Faster does not just imply higher terminal speed.

then you should of specified