which transmission is best for 55mph? - Fuelly Forums

Click here to see important news regarding the aCar App

Go Back   Fuelly Forums > Fuel Talk > General Fuel Topics
Today's Posts Search Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 03-23-2008, 08:50 PM   #1
Registered Member
 
Join Date: Apr 2007
Posts: 336
Country: United States
which transmission is best for 55mph?

i have the 5sp ex transmission (short gears) and at 55 mph i'm at 2100 rpm, i feel like in my car, anything under 2000 rpm is really weak to the point that it bogs.

so would a longer transmission such as a lx or vx tranny bog at 55 mph? im doing close to 100% city driving, and i love the ex tranny for now, but im just wondering
__________________

civic94 is offline   Reply With Quote
Old 03-24-2008, 05:17 AM   #2
Registered Member
 
Join Date: Oct 2007
Posts: 298
Country: United States
99.99999% of people here will probably tell you to ditch your EX transmission and get a CX/VX transmission. But honestly, I don't think you will see much of a difference. After all, your D16Z6 is not designed for low RPM cruising. So going with something taller will likely cause your car to feel weak, while giving you little to nothing in the way of FE benefit. This is ESPECIALLY the case with city driving, where a CX/VX transmission would effectively take away 1-2 usable gears around town. Of course, if you can get a transmission cheap AND replace it yourself, you could always experiment. But I honestly don't feel that a VX/CX transmission would help you without a D15Z1 swap to go along with it - ESPECIALLY for city driving.
__________________

StorminMatt is offline   Reply With Quote
Old 03-24-2008, 05:21 AM   #3
Registered Member
 
GasSavers_Erik's Avatar
 
Join Date: Nov 2006
Posts: 1,027
Country: United States
I did an HF trans swap on my 87 Civic carbed 1.5 and here is my result- it helps on the interstate, but it hurts my city mpg. My engine has pretty good torque down to 1500 rpms- but different engines have different torque curves and yours sounds like it needs a low geared tranny because it needs to rev.

If you are doing 99% city driving (less than 45 mph), in my opinion, you should just stay with the low geared tranny.
GasSavers_Erik is offline   Reply With Quote
Old 05-11-2008, 06:29 AM   #4
Registered Member
 
Join Date: May 2008
Posts: 6
Country: United States
vx trans

Quote:
Originally Posted by Erik View Post
I did an HF trans swap on my 87 Civic carbed 1.5 and here is my result- it helps on the interstate, but it hurts my city mpg. My engine has pretty good torque down to 1500 rpms- but different engines have different torque curves and yours sounds like it needs a low geared tranny because it needs to rev.

If you are doing 99% city driving (less than 45 mph), in my opinion, you should just stay with the low geared tranny.
Hello I'm new here i hope i put this in the right place. I have a 93 dx hatch my current mpg is 41 highway i travel ALL HIGHWAY on a daily basis. would a vx transmission help at 65 to 70 mph ? If so who has one ? Thank you. rick
optaire is offline   Reply With Quote
Old 05-11-2008, 08:06 AM   #5
Registered Member
 
Join Date: Apr 2008
Posts: 7
Country: United States
As long as it is fairly level highway then yes I believe it would. For better information check out an online trans calculator and that will tell you exactly what you got.
flydelsolsi is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Distinction in 'garage' for cars we no longer own Smitty Fuelly Web Support and Community News 3 09-12-2008 07:50 AM
O2 sensor voltage fluctuation wildly Giovanni General Maintenance and Repair 5 09-22-2007 07:39 AM
2006 Pontiac G6 Silveredwings Car Reviews 5 02-11-2007 06:38 PM
A RAV4 to go with the Prius? krousdb General Discussion (Off-Topic) 31 12-30-2006 05:32 AM
vx 5 wire o2 sensors on eBay!!! budomove For Sale 3 12-19-2006 07:41 AM

» Fuelly iOS Apps
» Fuelly Android Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 12:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.