Singo17 wrote:Rainbow Warrior wrote:Singo17 wrote:Rainbow Warrior wrote:Fisher wrote:Turbos, Superchargers, Intercoolers ...! These 4.2's seem to have a real problem with being under powered. I'm glad I have a 3.0TDi
But you're already squeezing every horse out of your engine, hence the sad condition it'll be in if it ever makes 500,000km.
But if I turbo intercooled my TB42, you'd be the one under powered
How do you quantify that statement you know someone that has tried to squeeze more out of a ZD30 without success?
How many ZD30's you seen at 500,000km in poor condition?
How do the 3 litres go without a turbo & intercooler?
Wouldn't have a smick but I would suggest like a 4.2 aspirated a slug.
Your Question was in relevance to what ?
You summise that bombing a 4.2 to go harder than a ZD30 is going to guarantee you 500k out of it I suppose?
So why doesn't Nissan do just that to compete with the Yota Direct Injection 4.2TD?
Yeap, much stronger motor built well for milage. They do a 4.2 turbo still
AFAIK, as the ZD30 isn't as good towing and still a new kid on the block as far as long term reliability goes.
There's no subsitute for cubes, if comparing a 3.0litre to a 4.2 litre and saying one is underpowered it should be done either both without turbo & intercooling or both with. I realise there are some design enhancements in the Valving etc, but think the ZD30 would have to be over 3.5litres to be on the same field as 4.2TDi.
Why didn't the 2.8TD kill off the 4.2NA?
Why didn't the RB30 kill off the TB42? It's a more advanced design too.
Nissan probably is quite happy with it's 2 motors aimed at different markets, commercial is going to be more interested in a 100% proven reliable product even if it doesn't have sportscar feel to it.
500,000km out of a 4.2TDi is no problem.