1st Gen General Discussion The place for non-technical discussion about 1st Gen RX-7s or if there's no better place for your topic

Gear ratios

Thread Tools
 
Search this Thread
 
Old Oct 20, 2018 | 08:59 PM
  #1  
Photo_Boi's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2018
Posts: 39
Likes: 0
From: Kansas City Missouri
Gear ratios

hey I recently got an Fb and one of the few things a have a problem with is the gear ratio it just seems super short I mean I know they are meant for racing and all but I would expect to be able to go 70 and not be at 3500 rpm but this could just be a me thing anyone have any suggestions that could make this an easy fix
Reply
Old Oct 20, 2018 | 09:42 PM
  #2  
GSLSEforme's Avatar
ancient wizard...
Tenured Member 05 Years
 
Joined: Sep 2014
Posts: 2,335
Likes: 262
From: Maryland
Nothing to be "fixed".Those numbers you post are about right. Non SE FB has 3.909 final drive gearset. 5th gear,80mph=4k rpm.
Reply
Old Oct 21, 2018 | 08:19 AM
  #3  
t_g_farrell's Avatar
Waffles - hmmm good
Tenured Member: 20 Years
Community Favorite
iTrader: (1)
 
Joined: Jul 2004
Posts: 9,250
Likes: 464
From: Lake Wylie, N.C.
Yep, mines at 4k @ 80 mph in 5th gear. This isn't a piston engine.
Reply
Old Oct 21, 2018 | 07:46 PM
  #4  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,837
Likes: 3,234
From: https://www2.mazda.com/en/100th/
fuel economy is actually better between 3500-4000 than it is between 3000-3500. its not a piston engine.

Reply
Old Oct 22, 2018 | 09:52 AM
  #5  
t_g_farrell's Avatar
Waffles - hmmm good
Tenured Member: 20 Years
Community Favorite
iTrader: (1)
 
Joined: Jul 2004
Posts: 9,250
Likes: 464
From: Lake Wylie, N.C.
Originally Posted by j9fd3s
fuel economy is actually better between 3500-4000 than it is between 3000-3500. its not a piston engine.
So true. I get 24 mpg at 80 and it drops if I have to go slower.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FC3S_nataku
2nd Generation Specific (1986-1992)
2
Feb 6, 2010 11:20 AM
hadoq
2nd Generation Specific (1986-1992)
7
Aug 26, 2009 12:33 PM
ponykiller
2nd Generation Specific (1986-1992)
6
May 10, 2002 01:35 AM
Node
Rotary Car Performance
13
Feb 28, 2002 06:54 PM
c00lduke
3rd Generation Specific (1993-2002)
1
Jan 20, 2002 08:58 PM




All times are GMT -5. The time now is 02:04 PM.