Fuel Economy For 250Rwkw+

[V28VX37]

Hi all, I did a quick search but couldn't find much on fuel economy so I thought I'd post this up.

I've got an R34 GTT auto with a recently installed Hypergear ATR43SS2 and supporting mods (full list here), currently running 257rwkw.

I always keep track of my fuel expenses and I measure consumpsion by filling up fully every time and noting down the odo reading. Here's an overview:

• Completely stock 150rwkw, overall average of 12.2 litres/100km over 8,000 kms
• Stock turbo with upped boost and Nistune with supporting mods 199rwkw, overall average of 11.9 litres/100km over 18,000kms

I've only filled up the car the three times since having the Hypergear installed, however the average consumption is currently sitting at 16.4 litres/100km. Granted it's been a lot of city driving but it's still a pretty silly figure.

What kind of economy (litres/100km) are you guys getting out of your 250rwkw+ setups?

[GH05T]

not really that silly. what did you think was going to happen?

[V28VX37]

not really that silly. what did you think was going to happen?

Umm, I expected maybe a 20% increase in fuel consumption? My previous car with a 5.7 litre LS1 and 293rwkw drank an average of 16.9 l/100km, just as another reference point.

But yeah keen to hear what others are getting.

[GTR-N1]

Time to hybridise? - jk

Tuner says? - srsly

Right foot in stop/start traffic? - srsly

Me with 320wKw? In my country town and driving gently, I use 12.8 l/100Km. In nearby hairpins, it goes up to 20...

[dnegative]

16L/100km with some city driving thrown in sounds alright to me?

Fuel is still cheap and unless your doing massive km's a week........ what are we talking, an extra $15 a week?

[OVA 300]

Modified cars and GTR ownership isn't measured in miles per gallon but smiles per gallon. The more you use the more you get. ( legally of course ). Cough.

If you can't afford the petrol you can't afford the car.

[V28VX37]

Thanks guys. I'm not complaining, just trying to work out what I should expect in terms of fuel consumption and if there's something I could improve in my setup, tune or driving style.

Coincidentally, there is a recent thread on the LS1 forums with people reporting their gas mileage, which I found quite useful. It confirms that city driving/low speeds really kill the economy with high powered cars.

[Alexro]

I get anywhere between 12 - mid 20 L/100 running 250

Stupid love of the spool makes me foot happy l