Cassez Posted December 30, 2016 Share Posted December 30, 2016 (edited) So I want to know how much miles per gallon a 1jz (vvti and not vvti) Making 440 horsepower with 550cc injectors Please help ! Edited December 30, 2016 by Cassez Quote Link to comment Share on other sites More sharing options...
Greeko Posted December 30, 2016 Share Posted December 30, 2016 LOL, ...HORRIBLE!.. You don't put in a JZ for fuel economy. I make around 400 hp with 440cc injectors and burn 18-20 MPG Quote Link to comment Share on other sites More sharing options...
Cassez Posted December 30, 2016 Author Share Posted December 30, 2016 How much mpg do you think one with 550cc injectors would get? Quote Link to comment Share on other sites More sharing options...
Greeko Posted December 30, 2016 Share Posted December 30, 2016 Similar Quote Link to comment Share on other sites More sharing options...
seattlejester Posted December 31, 2016 Share Posted December 31, 2016 Depends on your gearing. If you got like a 3.1 rear end and used an R154 you would most likely be able to run highway speeds without being in boost, I think with a 3.7 rear end I sit around 2300rpm. At that point you would be getting comparable mileage to an NA supra or IS300/sc300, but better since there is quite a bit less weight, but still probably low 20mpg figures. With PWM control, injector size really isn't a factor as it used to be where 1000cc injectors would get absolute dog turd mileage. Once you get into boost though you could empty your tank pretty quick. When I was shopping fuel pumps I was told to figure fuel usage at about 1 gallon/10hp. At 440hp you would need 44gph. That would drain a 16 gallon fuel cell in about 20 minutes, granted I don't know anywhere in the world you can be hard on the throttle for 20 minutes at a time. Quote Link to comment Share on other sites More sharing options...
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