Outer Limits 4x4 Board

What are the up's and down's or +'s & -'s to an after market turbo?
Would it be worth getting a cheaper 4.2D 100 Series and put on a turbo rather than fawking out the extra dosh for the 4.2TD?
What brands etc are the best in this case?

Cheers!

aftermarket is cheaper, produces good power, and produces more torque at lower rpm, but the non turbo motor is indirect injected, and that coupled with the type of injector sets a fairly low limit on the amount of boost you can reliably run and the amount of power you can reliably extract from the motor - you hit the performance "wall" ar around 150 - 160kW with the 1HZ motor, with turbo and intercooler, without very expensive internal modifications. the factory turbo motor is about 140kW in stock trim but can make in excess of 200kW if you throw enough money at it - you need to upgrade the intercooler and plug in an electrnic module to control the power - which is not cheap. of course you are far more likely to be satisfied with the performance of the factory turbo to start with. it comes down to how much you have to spend and exactly which vehicle you want - if you want a factory turbo in a 100 then you can only get it with IFS. If you want a workhorse trim level then you can only get it with the non-turbo motor.

This sucks!!

Why can't they just make a car that is tough enough and has enough power to drag its ass past 100 before the end of the strip?!

Basically what I want is the toughness of the 80 series and the looks of the 100 series and the power of the turbo diesel!!

What do i do?!

Moonman wrote:Why can't they just make a car that is tough enough and has enough power to drag its ass past 100 before the end of the strip?!

they do

ring ferrari.

Moonman wrote: Basically what I want is the toughness of the 80 series and the looks of the 100 series and the power of the turbo diesel!!

What do i do?!

Buy an 80, they look good with the round shape so they don't show their age. And you still get the solid front axle, and it weighs less than the 100.

What more can I say..

you're buying a heavy duty 4WD vehicle - even with the turbo, performace takes a third row seat to offroad ability and load capacity.

if you have the $ for a 100/105 diesel, have a good look at high end/low km 80 series turbos, if you can score a mint 97/98 model with around 150,000km you're onto a good thing.

dumbdunce wrote:if you have the $ for a 100/105 diesel, have a good look at high end/low km 80 series turbos, if you can score a mint 97/98 model with around 150,000km you're onto a good thing.

Yeah, but as rare as rocking horse you know what these days, at least to find a nice clean unit anyway.. I tried, and settled on the N/A coz I couldn't find a clean turbo one, even up to almost $40k.(at the time, approx 4 years ago)

Moonman wrote:What are the up's and down's or +'s & -'s to an after market turbo?
Would it be worth getting a cheaper 4.2D 100 Series and put on a turbo rather than fawking out the extra dosh for the 4.2TD?
What brands etc are the best in this case?

Cheers!

Hi Moomman, I see you are still grappling with your purchasing decision. A couple of other negatives that Dumbdunce forgot to mention are:

1. Fuel economy of a direct injected motor will always be better than a pre combustion motor; and
2. Pre combustions always dirty up the oil more than a direct injection. Whilst the manuals may not say it, you can travel further between oil changes with a direct injected motor over a precombustion as the direct injected one doesn't dirty the oil up with carbon deposits as much. Dirty oil kills turbos and as far as I know, this is the main reason the factory went direct injection for the factory turbo and not just take the easy way out and bolt on a turbo to a 1HZ.
3. Non factory turbo's run higher comp. I think it is 22:1 for NA motors and 18:1 for the factory turbos. The 50 engineers that designed and built the motor at the factory did this for a reason .... too much compression with a turbo will shorten engine life .. harder on the main bearings, pistons, rods, crank, head and head gaskets.

Mate don't buy anything until you see and drive Luke's factory turbo multivalve .. you won't regret it.

Cheers
Simo

i dont think dirty oil was the reason they went for direct injection, it may be 1 of many reasons, but certainly not the major one.

Shadow wrote:i dont think dirty oil was the reason they went for direct injection, it may be 1 of many reasons, but certainly not the major one.

Fair enough .. your entitled to your opinion .. what was the main reason then?

better performance gains inconjuntion with with the turbo

Shadow wrote:better performance gains inconjuntion with with the turbo

Yep sounds like a good reason to me .. but then why didn't they direct inject the non turbos .. surely they need all the better performance they could get??

You got him there

OK OK... So we're saying the after market turbo idea ain't the greatest...

So how about a few comparisons between the 80 series factory turbo engine (multivalve) and the 100 series factory turbo engine? Are they the same or similar?

Don't worry Simo i'll definitely be down there in 10 days time and will surely
find time to check it out. That's if its still for sale when i get there?
I feel that if Luke can come down in price a bit i'll be driving it home with me..!?