Thread: D2 V8LPG vs TD5

I have emailed a few people regarding the chips for the Rover V8 3.9.Out of the people i have emailed all of them have been very happy with the chip they used.It gave better fuel economy and more low down torque.Speak to Mark Adams regarding it.He can give you the whole low down on it. Might be doing it when the funds allow.Also just to rub it in.The first 9 or so threads in technical chatter are all for diesels.Bet you that comment will stir some people.But regarding this whole thread it comes down to what you REALLY want yourself.V8 or Diesel? Your choice in the long run!

Originally Posted by SPROVER

I have emailed a few people regarding the chips for the Rover V8 3.9.Out of the people i have emailed all of them have been very happy with the chip they used.It gave better fuel economy and more low down torque.Speak to Mark Adams regarding it.He can give you the whole low down on it. Might be doing it when the funds allow.Also just to rub it in.The first 9 or so threads in technical chatter are all for diesels.Bet you that comment will stir some people.But regarding this whole thread it comes down to what you REALLY want yourself.V8 or Diesel? Your choice in the long run!

The original query was between a diesel or V8 Disco II so between the 4.0 and a TD5..

There is a big difference between the 3.9 and the 4.0. I wouldn't hesitate putting a 3.9 on gas, I've just never seen a 4.0 converted to gas in a way I could live with. Even the couple of sequential gas systems I have driven - really disappointed me.

As far as chips go, what Tombie and the others have said is 100% true comparing the 4.0 and Td5... you simply get a lot of bang for your buck chipping a Td5 ... the 4.0 provides very minimal improvement.

I think the popularity of TD5 chips is the simplicity of the upgrade.

Most of the V8 chips for the 4.0 like the Tornado that Mark Adams sells give as little as 10 - 15 horsepower extra.

My chip is pretty mild.. I am not looking to build a race car.. but it still gave me an additional 30 bhp and an extra 70 Nm of torque - in 10 minutes on a computer! (It was simply an ecu remapping - no hardware needed)and I am still getting an average of 12L/100km despite having a heavy right foot. (Average in my standard V8 was 19.5)

But in the end... What is right for me may not be what's right for Vogue,

Decide how its going to be used..... do the maths... and go drive a few and make sure you can live with your decision..

Mark

Originally Posted by Pedro_The_Swift

oh,, I see,,

if you have been to these places you JUST KNOW which to buy,,

have I got that right?


so,, we are heading down the ol'e "A Landrover's not a proper landrover unless its a diesel" doctrine,, because ONLY a diesel can go to these places.

Well I hope that you do see. I have not made any comment about what a proper land rover is, I have a couple of series ones which to some people are the real land rovers and they all run on petrol.

The availability of diesel is much greater than petrol in remote places. So I guess you have got it right, if you want to travel the outback it would be advisable to go with the diesel. Now if you just want to drive to the local pay and play, it does not matter what you have petrol or diesel.

Originally Posted by Slunnie

I guess you could draw a comparison.

TD5 2.75t at GVM with 2.5 litre engine = 1100kg per litre.
Semi trailer 51t at GVM with 16 litre engine = 3188kg per litre.
B double 70t at GVM with 16 litre engine = 4312kg per litre.
Road Train 100t at GVM with 16 litre engine = 6250kg per litre.

I don't think the vehicle weight is an issue for the engine size. Cat, Detroit, Cummins etc have been making engines that load at up 6x more in comparison to their capacity without drama and these engines live a lot longer (but are used differently).

Also, people chip the TD5's because you can get a heap of power out of them for little cost. The V8's dont really respond well to chipping - same or more money for not much.

Thanks Slunnie - Saved me typing....

And yes, your spot on on the TD5 upgrade too... Lots of easy power for minimal outlay.. Not the same on V8s lots of money for smaller gains...

I dont care either way, its not my money the original poster is spending and I now regret even typing in this thread in the first place.....

Oh and for the record...

I was rewriting the mapping in V8s in 14CUX and P38 Range Rovers and then early D2s) back in the 90's and early 2000's and doing custom programming of them.

Gains were never that impressive regardless, until head, port, cam, compression were altered...

We dropped doing it because the benefits were minimal without modifications to the engines.

Much of the gains were in smoothing the engine, not power or torque... So yes a few kw here and there but mainly a Placebo effect in relation to power.

But hey.... Who cares









Walks away......

Please stop....I have just about talked myself into getting a Disco.....you lot are talking me out again

Just get the V8. You know you want to.

If anything, V8 for the sound