Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 07-07-2009, 12:43 PM   #1 (permalink)
EcoModding Lurker
 
fairdinkumfrankies's Avatar
 
Join Date: Jul 2009
Location: Worcester MA area
Posts: 46

Yaris - '10 Toyota Yaris
90 day: 42.39 mpg (US)

Fiesta - '11 Ford Fiesta SE
Thanks: 6
Thanked 0 Times in 0 Posts
Improving on 38.5mpg in 94' Prizm

I posted this on another thread but then thought about starting a new one. I have been able to reach 42mpg under ideal conditions (flat ground, 55mph, non-Winter seasons, and no traffic to consider). I am expecting to do a 100 mile commute for a few months increasing my present trip by 5X. Most of the driving will be highway so I thought a gear change to my 5-speed might improve my 38.5mpg average. Can anyone help with a fifth gear change for a 1994 Geo Prizm? I would love to be able to reach a repeatable 45mpg average without insighting road rage in fast New England/Boston 70mph traffic. My wife said she did not want me to do extensive aero mods and my budget is very modest. I do have access to a mechanic friend and I like the lowered suspension and the belly pan.

My first post,

Neal

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-07-2009, 12:51 PM   #2 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,166

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,464
Thanked 2,535 Times in 1,529 Posts
Hello Neal. Welcome to EM.

That is quite the commute you have coming up! Your best and cheapest bet is to just use the pulse and glide driving technique. Your mileage will rocket up, but it is work. You might be able to find another transmission with slightly lower gearing, but it likely won't make a large impact on fuel economy. I'm not aware of any 5th gear swaps that would work for you. Your engine uses a very similar transmission as my 03 Matrix does, and I would have died to get a new 5th gear myself.

__________________
Current project: A better alternator delete
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
94 geo motor/tranny swap into a 96 geo body tborgers DIY / How-to 13 12-31-2008 12:15 PM
CL: Mechanics Special 94 Geo Metro Red For Sale 4 04-09-2008 01:48 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com