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Nugget is a member and sells an air duct kit on the verandah - it's primarily intended to ensure the standard ducting is 100% sealed when fitting a snorkel, but IME it really improves intake airflow, which is apparently quite restricted in the Puma Defenders.Quote:
Originally Posted by Naks
You can DIY your own solution - there's a thread or two on Defender2.Net - but Nuggets solution is a good option.
Hi Jason,
A BAS remap with EGR removal is the best mod IMO. The Nugget airbox mod is a very big improvement on a dodgy factory intake design, but unless you are considering fording big rivers or running at high boost levels all day in high ambients it isn't critical, along with the bigger IC.
OR, just Save your $, just start with the remap and EGR disable, do a Nugget intake mod ( Easy to fit etc by all accounts) and enjoy the increased driveability:)
JC
Save my dollars, huh. The card is a smouldering mess on the desk at the moment. Just finished ordering a Bell tune and a Alisport cooler.
I know the map will be good bang for buck, I am sceptical about a cooler but live in hope it will add to economy and better engine running in general.
As for Nugget's air box, I haven't actually seen one. But I disagree with JC a bit regarding the standard LR design. I think the way the head is designed is very clever. Encompassing a 15mm high lip on the barrel inside the head, and draws air from the rear and underneath makes it hard for all sots of crap to get in. The in built hi clone separates heavy particles, and there is also a small water sink at the base of the tube if any water may enter the system from the top. All I did to water proof it was pull it apart and liberally smother the joints with sensor safe silicone, no different than an aftermarket jobby.
If there is a failing that I see is the air box lid, a right PITA to undo and redo.
The design is fine for dirt ingress protection to a point, I was talking about flow at high demand, it is quite restrictive.
JC
I dont know much about Diesels but have owned Modified Single turbo'd, twin turbo'd 400kw at the wheel 6 cylinder Nissan sports cars. I can't see how an intercooler is going to give you much in the sense of power gains. IF anything a larger cooler can give a slower power response because of the larger volume of air required to fill it before it passes through, but unless you are running higher boost with a tune, I wouldnt bother with the cooler. I haven't even seen the size of the cooler in the car now or where it is placed, that sort of upgrade is generally done with a tune and significant boost pressure increase. Im sure it has been all done before and I may be wrong, but as you said 5% gains aren't worth the financial outlay.
Any power increase comes with it's shortcoming and I have learned if you want more power just get a donor and go for a bigger engine or stroke the engine you have out. Currently my daydreaming consist of the 3.2 ford ranger turbo diesel. Anything is possible.
Graham
I primarily went for a bigger IC mainly for EGT reasons - though I don't have any direct evidence it helps, I have seen plenty of anecdotal evidence to suggest it is likely to lower EGTs in a tuned Puma.Quote:
Originally Posted by voltron
Hard to see how (at least in theory) a cooler denser intake charge would harm power output (lag issues aside) :confused:
You are right, they would definately help for sure. Water sprays and the likes are also options people take to cool down intake air. A Snorkel would do wonders I imagine.Quote:
Originally Posted by n plus one
Can you elaborate on that?Quote:
Originally Posted by n plus one
Cooler air is more dense or compressed, therefor you are essentially fitting more air inside a given area. More air+fuel = more powerQuote:
Originally Posted by Aaron
When you are driving your car in winter or while its raining, you may notice
it runs better and has a bit more response and power.
I
Quote:
Originally Posted by voltron
You will actually notice the increased power in summer when ambient temps are very high. Compared to the OEM IC, the Alisport one cools the intake air more, this you will notice the diff when it's very hot ;)