Thread: D1 V8 economy run.

I will probably never live this down but........for a V8, that is good.

I get similar when towing or heavilly loaded, sometimes touch 15l/100kms in my TDI but Im expecting it to go back to good economy again since all the work Ive done on it recently.

That is impressive esspecially using cruise, my experiences with it is that it accelerates fairly heavilly and is usually on and off throttle all the time so you dont get great economy using cruise.

That is great fuel economy. My D1 V8 with those mods never returned those sort of figures. Best it ever did, with a tail wind all the way from Canberra to Sydney, was 15.6L/100km.

It used to get 18L/100km all of the time and 20s around town.

My TD5 only gets 12L/100km on the highway.

That's pretty good actually. The best I ever achieved with mine was on the New England Hwy and that was 13.5L/100km. The vehicle was stock except for changing the exhaust system from the muffler back (running 205R16 tyres too).

Since you've got a snorkle fitted I'd be very happy with that.

Thanks guys

I feel better now
Yes I did have the cruise on the whole time on the freeway. It did push the peddle to the floor on some of the hills around Forest Glen. I guest it may have done better with the cruise of on hills.

I wonder how it would go with better injectors and an after market ECU?

Cheers,
Ron

Imagine the improvement with fitting the O2 sensors and making it a closed loop system like PhillipA has done? Fitting aftermarket injectors could also be handy once that was done.

Originally Posted by PeterM

Imagine the improvement with fitting the O2 sensors and making it a closed loop system like PhillipA has done? Fitting aftermarket injectors could also be handy once that was done.

Thanks Peter,
The 02 sensors are a great idea.
I had forgotten about Phillip and Justin's vehicles.

Any idea what AFR's the 14cux runs in closed loop?

My DII in stock form would probably return around 16 litres per 100 kms on the highway, driving the Hume Highway. You are not just getting good economy there, but I believe you are getting *exceptional* economy - was there a tail wind helping you, seriously?

Since adding all the extra weight to my vehicle, e.g. bull bar, Kaymar rear bar, rock sliders, lift, etc. I average around 19 litres on the highway, and that's with premium unleaded.

Weight is the enemy of economy. That's why the Toyota Prado is so economical - it's got a lot less weight. But when those aftermarket mods are piled on, the economy starts getting worse....