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ZDan · 03-29-2018, 04:40 PM

I got 27mpg highway (8.7L/100km) with 6.0 LS2 in my FD RX-7 w/ 0.5:1 6th gear and 3:55 diff. With the 6.8 LS3 in it now and 0.64:1 6th gear I get 24mpg highway (9.8L/100km).
In town it does suck though, more like 14mpg (16.8 L/100km).

No reason a 2JZ should get better fuel mileage, an LS3 Corvette gets slightly better city and significantly better highway mileage vs. a 2JZ Supra...

03-29-2018, 04:40 PM	#8
ZDan Senior Member Join Date: May 2011 Drives: '23 BRZ Location: Providence, RI Posts: 4,672 Thanks: 1,439 Thanked 4,011 Times in 2,097 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	I got 27mpg highway (8.7L/100km) with 6.0 LS2 in my FD RX-7 w/ 0.5:1 6th gear and 3:55 diff. With the 6.8 LS3 in it now and 0.64:1 6th gear I get 24mpg highway (9.8L/100km). In town it does suck though, more like 14mpg (16.8 L/100km). No reason a 2JZ should get better fuel mileage, an LS3 Corvette gets slightly better city and significantly better highway mileage vs. a 2JZ Supra...