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Old 03-15-2015, 03:01 AM   #5 (permalink)
firehawk618
EcoModding Apprentice
 
Join Date: Oct 2014
Location: Marysville, wa
Posts: 221

97 Civic HX sedan VX trans - '98 Honda Civic LX + HX + VX
90 day: 41.9 mpg (US)
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Quote:
Originally Posted by Baltothewolf View Post
Don't get a Taller trans, I'm sure you will be happy with the LX trans, as I believe it's 3.73. 6mpg would probably be on the low end, that's only a 30% increase. If you have appropriate tires and keep your speed at 70mph or lower, 50 should be possible. At least 45. If you want, you can go the Taller geared trans from the VX/CX and lower your tire size to P165/65R14 Bridgestone potentza Re92's. Then you will definitely get 50mpg easily.

[Edit]: Your car will probably look silly with such small tires, but you are driving this for mileage and gas savings, no?
Thanks for the input. Right now with my y7/y8 mini me I'm running the ex trans that's geared with the 4.25FD. From what I understand my LX trans has the 4.058 FD but I have not confirmed this.

I do plan on just using the LX transmission for 10 or so tanks and see where that puts me.

I think my next modification will be to lower the car a bit, it sits silly high on stock suspension.

I gathered my FD ratio from this site:

Honda Transmission Calculator by ZealAutowerks
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