CHIPPING A LANDCRUISER 100 series

There is many to chose from, I have purchased a few for different types of vehicles. I have found the best ones are the ones you don't need to adjust. I have a STI fitted to my 2010 hilux and with exhaust it has made a massive difference. To start with you should look at doing the exhaust first then see if you need one.

A Chip will definitely improve your performance, As far as fuel economy is concerned there are benefits (once you have more power you tend to use it ). I fitted a Steinbaur chip in 2011 in my 100 Series ,before fitting a chip you should modify the exhaust I have a 3"Mandrel bent system from Beaudesert Exhaust and tow a 2.8 ton Van.
It is well worth the cost .
The principal is better air flow in, more fuel and better exhaust flow out equals better performance.
I also would recommend for better air flow a K and N Air Filter and if you don't have one a Snorkel
Hope this helps.
Cheers Joe.

Hi Sapper
In my opinion UNICHIP are the best. Match that to a 3" exhaust, you will be very very pleased. (check out the UNICHIP website, it explains the safety features)

I added a Safari D-tronic chip (ARB did it) to my 120 series Prado diesel 2005 model soon after I bought the vehicle and it made a HUGE difference to power and torque. Beats me why Toyota wouldn't fit such a chip as standard equipment. Fuel economy averages about 12.7litres/100km which is about bog standard for that era.

From my investigations a chip ups the fuel delivery pressure, which in turn supplies more fuel for a given injection time.
I think a cpu remap is a better option, as they can taper the fuel delivery at full load.
What ever you do, install an exhaust gas temperature gauge and drive to that.
The manufacturers tune the cpu to perform reliably performing to quoted specs.
If the car is rated to tow 3.5ton, it has to be able to do that with an intake ambient temperature of 50C+ without melting a piston.
When you start upping the fueling, exhaust gas temps and cylinder temps can go through the roof.
When towing a 3.5 ton van up a constant incline, into a 30knot headwind on a 40deg day, the last the need is overfueling.