View Single Post
Old 09-28-2016, 04:14 PM   #71 (permalink)
MPGeo
EcoModding Apprentice
 
MPGeo's Avatar
 
Join Date: Aug 2016
Location: Wilson, NC
Posts: 132

MPGeo - '93 Geo Metro Base
90 day: 67.51 mpg (US)
Thanks: 66
Thanked 56 Times in 36 Posts
Quote:
Originally Posted by Gasoline Fumes View Post
That site is wrong. These are the manual trans final drives used in 2WD Swifts and Metros...
3.52 - 1989-1994 SOHC 4-cyl Swift
Quote:
Originally Posted by me and my metro View Post
Gasoline fumes lists the only ratios I have seen. I ran Metros for 8 years. Since the transmission drive gear is attached to the crown gear you change the driven gear to correct for tire size only. The 3.5 tranny came in sohc 1.3 Swift from 89-94...
So based on this info, and the fact that my tranny did come of a '91 SOHC 4cyl Swift... Then I have to assume that I do have a 3.52 and just got lucky with my speedometer accuracy!

However, in the near future I will lift the car and manually rotate the engine and compare engine revs vs tire revs as suggested by freebeard, just did not get a chance to do so today.



I did remove the tach I was using and tested it's accuracy against my Disco's OEM tach reading, and then against my Mazda's OEM tach reading... And the e-bay tach is in fact not accurate... as suspected... It is reading way lower than actual and not consistent enough between tests or between cars for me to bother with trying to figure out a % of inaccuracy to try to apply to the GEO... so I just removed and kept it off.

Will have to come up with a good tach option that doesn't involve $150 (going local price) for a factory 3cyl gauge cluster... And since now that my speedometer is know to be accurate, now I don't have to rush and buy a gauge set like I expected

Attached Images
 

Last edited by MPGeo; 09-28-2016 at 04:21 PM..
  Reply With Quote