Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Dreaming...lean burn manual taller transmission Civic sedan...or get an Insight

mpg_numbers_guy · 08-21-2018, 09:07 PM

All the coupes in the area are rusty, and insurance is less for a sedan.

I've also read that HX motors are troublesome to maintain and lean burn is picky to engage; what if I were to get a CRX HF manual trans with the 2.95 final drive and swap it into a manual 7th gen sedan? Would it fit? And do taller transmissions hurt city FE? If so, would RE92 insight tires help?

EDIT: Looks like the CRX HF transmission is cable instead of hydraulic; what about a CX or VX transmission? Would it fit in a 7th gen civic body? Found some manual 7th gen civic sedans with bad trannys for $850-$1000. Or some shells (need both engine & tranny) for $250-$300.

What would be the best engine + transmission option that works for fuel economy in both city & highway driving that fits in a 7th gen sedan body style? Or 6th gen (possible consideration)?

08-21-2018, 09:07 PM	#4 (permalink)
mpg_numbers_guy Master EcoModder Join Date: Feb 2018 Location: VA Posts: 1,372 Toby - '13 Toyota Prius C Team Toyota 90 day: 63.99 mpg (US) Daz - '15 Mazda 3 iTouring w/ Tech Package Team Mazda 90 day: 38.2 mpg (US) Thanks: 324 Thanked 483 Times in 368 Posts	All the coupes in the area are rusty, and insurance is less for a sedan. I've also read that HX motors are troublesome to maintain and lean burn is picky to engage; what if I were to get a CRX HF manual trans with the 2.95 final drive and swap it into a manual 7th gen sedan? Would it fit? And do taller transmissions hurt city FE? If so, would RE92 insight tires help? EDIT: Looks like the CRX HF transmission is cable instead of hydraulic; what about a CX or VX transmission? Would it fit in a 7th gen civic body? Found some manual 7th gen civic sedans with bad trannys for $850-$1000. Or some shells (need both engine & tranny) for $250-$300. What would be the best engine + transmission option that works for fuel economy in both city & highway driving that fits in a 7th gen sedan body style? Or 6th gen (possible consideration)? __________________ 2013 Toyota Prius C 2 (my car) 2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car) Last edited by mpg_numbers_guy; 08-21-2018 at 09:50 PM..