Quote:
Originally Posted by fjasper
1.6 from an early Miata? Parts availability is very good, especially weight-reducing and performance enhancing mods if you want more than the original 115 horsepower. Online community is very helpful as well.
The NA Miata, with a .38 Cd, was rated at 30 highway (old number), so it seems like the potential is there for some very good mileage, especially in a light car with a higher-geared differential &/or bigger diameter tires.
1.8 from the NB Miata makes ~140hp stock, returned the same mileage rating.
The Miata transmission is a real sweetie as well, short throws & good feel. 6-speed is available on the some of the later ones.
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Certainly a possibility, and I do like the gearboxes. (Coincidentally my gearbox of choice could be turbo mazda rotary) I do think it's going to be behind in MPG compared to like a Honda R18 and for no major gains (except that it's ready to go RWD, which is one)
I may inject one of the old datsun motors and see where that gets me, if they got the best epa highway mpg for the years they were made, certainly I could inject it and get a BIT better? But it's still going to be turd slow (<70hp) unless it sprouts a turbo.