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[eage8]

Originally Posted by 1991corolla

I have a '91 corolla (Katie) with 330,000 miles on it, still running pretty decent... she has the 4AFE in her and 3spd auto with o/d (pops in at about 48mph), and i get really good gas mileage, usually 30mpg or above... when i do a lot of highway, i even get as high as 35 (at 70mph)... haven't done straight highway yet on a whole 10 gallons, but someday i will...

anyways, to the point. i wanna get another motor for it, but don't wanna mess up the gas mileage, so i am thinking of going for another 4AFE. I was thinking of the 20v 4AGE for another corolla later next year, or maybe the GZE supercharged because of the higher HP.

What would be the gas mileage if i put the 20v or the GZE in the corolla i have now? i wanna get at least upper 20's to low 30's average gas mileage if possible... what's the best thing to do as far as an engine swap?

35 is about right for a 4AFE. I'm actually surprised your not getting higher. it's probably due to the automatic transmission

a 20V 4age will get in the upper 20s easily. I'm getting about 23mpg with mine right now, but that's only because I don't have an o2 sensor so it's not running right (I'm working on it...) and I also drive the crap out of it and have wide tires... it should get about 30mpg normally.

I'm not really sure on the 4agze. I would guess lower, maybe low to mid 20s