LS2 and LS7 Fuel consumption....

[gtrclive]

I'm a Kit Car nut, and want to build another GT car, the MPG of these later Chevy engines is making me think that it's time to drop the old Iron Lump and use a modified LS engine...

My question is does anyone know what MPG the new LS7 Engine does in a vette ? Has it dropped due to being a 7 Litre ? or is it still 25mpg on a run ??? Got pritty feed up with 12mpg taking it easy in my GTR.....

Cheers

[stevieturbo]

mpg depends on tuning/mapping, engine mods, car its fitted ( weight, aerodynamics, gearing )to and type of driving.

But any decent LSx engine, set up properly should easily achieve more than 12mpg.

My supercharged LS1 will manage about 22mpg on a run. I'd probably get more with some fine tuning. Mates standard Monaro was sitting at a tad over 30mpg on the trip computer whilst cruising back from Santa Pod last weekend.

[LuS1fer]

My Z06 LS6 runs at about 23mpg but those are US gallons in the computer.

[ZR1cliff]

LuS1fer said:

My Z06 LS6 runs at about 23mpg but those are US gallons in the computer.

So shouldnt that mean mileage would be better on an imperial gallon

[chrisx666]

Yeah, that would be about 27MP(UK)G. I got called a liar when someone asked how much my Corvette did to the gallon.

[vetteheadracer]

My Z06 never averaged more than 18MPG (UK gallon) but then that could be the way I drive it.

The new LS7 is 23MPG (US Gallon)

US Gallon is 3.8litres not 4.54litres.