d chip

Yes I have the safari d-tronic chip on my 3 litre turbo Patrol. It gives a good increase in power and economy providing you don't stick the boot into it. Particularly good for that bit of extra power when towing.

These chips provide the power boost by allowing the fuel management system to dump more fuel into the motor. The downside of this is that you get much hotter temperatures when the vehicle is under strain (like towing a van or trailer up hill) and more fuel being burnt means more exhaust gases that need to be evacuated by the same old exhaust pipe therefore a build up in pressure and heat in the motor.

It's reccomended that if you put a chip on your vehicle, you should also upgrade the exhaust system to a larger diametre to facilitate the removal of the extra gases. You should also look at having a pyrometre type gauge fitted fore of the turbo on the outlet manifold, or slightly aft of the turbo on the exhaust outlet. This will allow you to keep an eye on the temperature and back off if it heads into the "death zone".

There is a lot of relevant info if you do a search on the Nissan Patrol forum.HERE is the link

Cheers

Mick

you don't need the bigger exhaust it makes a good improvement by itself but with the 3" exhaust and a K&N filter I got 12% power increase at the back wheels amazing