Toploader: Wide Ratio vs Close Ratio - Vintage Mustang Forums
Vintage Mustang Forum
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us
» Auto Insurance
» Featured Product
Go Back   Vintage Mustang Forums > General Discussion > Vintage Mustang Forum
Vintage-Mustang.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 06-25-2003, 09:41 AM   #1 (permalink)
Senior Member
 
Join Date: Mar 2003
Location: SC
Posts: 118
Default

Toploader 4-speed manual transmissions: wide ratio versus close ratio: what does this mean ? Can somebody post a fairly complete explanation of these two terms ? When would you want to have a close ratio transmission and when would you want a wide ratio ?

Thanks !

-Jeff
__________________
No eye has seen, no ear has heard, no mind has conceived what things God has prepared for those who love Him. 1 Cor 2:9
jnorkus is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-25-2003, 09:58 AM   #2 (permalink)
Banned
 
Join Date: Feb 2001
Location: California
Posts: 3,830
Default

With close-ratio units, the gear ratio's for each gear are alittle closer together meaning this keeps the engine closer in its power band after each shift. IIRR, First gear is usually a little taller, 3rd is a little lower. This makes great for a road race application and as a daily street driver I especially like it.

Wide-ratio is great when your engine has a lot of torque (which all the 289's do- around 300lbs IIRR). This is typically better for drag racing type events since 1st gear (IIRR) is a little lower. Works fine for a daily driver also.
beechkid is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 11:15 AM   #3 (permalink)
Senior Member
 
Join Date: Mar 2001
Location: Tunkhannock PA
Posts: 11,594
Default

In addition to beachkid's excellent response, with the wide ratio, you will have sort of a poor man's overdrive. A wide ratio 4 spd with a 3.25 axle ratio will have about the same over all final srive ratio as a close ratio 4 spd with 3.50 axle ratio in 1st gear but will a more relaxed cruise in 4th, getting slightly better gas milage.
__________________
Tom


Rehab is for quiters!

Huskinhano is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 11:58 AM   #4 (permalink)
Senior Member
 
66gt350's Avatar
 
Join Date: Jul 2000
Location: Redding, CA
Posts: 1,886
Default

IIRC, both the wide and close ratio toploaders have the final 4th gear ratio of 1:1.
__________________
-Rob "Ricky Bobby"
No one is listening to you, until you fart.

Then________________________________And now
http://moostangproductions.com/66gt350/engine1.jpghttp://moostangproductions.com/66gt350/engine.jpg
66gt350 is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 12:33 PM   #5 (permalink)
TJH
Senior Member
 
Join Date: Aug 2000
Location: Glendale, California
Posts: 986
Default

I have a close ratio 4 speed (not a toploader) in my '66 GT & a wide ratio 4 speed (toploader) in my '70 Boss clone. I much prefer the wide ratio 4 speed. With the close ratio you are constantly shifting, downshifting etc.. If you are choosing between the two what you should do is try to drive a couple of cars & get a feel for the difference. Good luck
__________________
Tom<br>
TJH is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 01:08 PM   #6 (permalink)
Senior Member
 
RichLong's Avatar
 
Join Date: Oct 2001
Location: Reading, PA
Posts: 2,402
Default

You can see the gear ratios here http://www.4speedtoploaders.com/
__________________
2003 Supercharged Mercury Marauder Lot's of Mods!
Winner of the Mini-FEED 2008 Burnout Contest!
Trilogy #132 Supercharger
FRPP Aluminator Long Block
BC Automotive Transmission and TC.
Snow Methanol Injection
4:10 Eaton
etc...etc..etc...

You'll also find me at www.motorcitymarauders.com and www.mercurymarauder.net
RichLong is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 02:11 PM   #7 (permalink)
Senior Member
 
Join Date: Mar 2001
Location: Tunkhannock PA
Posts: 11,594
Default

That's absolutely right! I said over all final drive ratio in 1st. Meaning multiplying 1st gear ratio by axle ratio. A wide ratio box has a 1st gear, IIRC 2.73 and a close box is 2.42 IIRC. Multiply 2.73 X 3.25 = 8.87:1 Multiply 2.42 X 3.50 = 8.47:1

So you can see that by running a wide ratio with a 3.25 axle, you'll have a lower final drive ratio, meaning you'll pull away from a stop a lot easier. Then in 4th, you'll have a 3.25 vs 3.50 or about 11% lower rpms!
__________________
Tom


Rehab is for quiters!

Huskinhano is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 02:30 PM   #8 (permalink)
Guest
 
Posts: n/a
Default

I just did a conversion on my toploader from a narrow to a wide ratio. I had a 3.0 rear and changed it to a 3,5 track lock. With my 351w whitch has gobbs of tourque it works great. Before first gear was way to tall. Now it comes out of the hole really well and the street cruise rpm is acceptable. In hind sight (20\20) I should have gone with a 3.25 rear gear. I still have the parts that I took out If anyone wants to reverse the conversion.
Good luck
  Reply With Quote Quick reply to this message
Old 06-25-2003, 03:08 PM   #9 (permalink)
Senior Member
 
66gt350's Avatar
 
Join Date: Jul 2000
Location: Redding, CA
Posts: 1,886
Default

Ok...I guess I read your post wrong. Coffee, must have more coffee *G* LOL
__________________
-Rob "Ricky Bobby"
No one is listening to you, until you fart.

Then________________________________And now
http://moostangproductions.com/66gt350/engine1.jpghttp://moostangproductions.com/66gt350/engine.jpg
66gt350 is offline   Reply With Quote Quick reply to this message
Old 06-25-2003, 06:36 PM   #10 (permalink)
Guest
 
Posts: n/a
Default

I still read it as different in 4th gear. Not so.
1:1 is 1:1 regardless of which transmission you have. final drive is the same for both trannys.
  Reply With Quote Quick reply to this message
Old 06-26-2003, 08:11 AM   #11 (permalink)
Senior Member
 
Join Date: Mar 2001
Location: Finland
Posts: 3,047
Default

I think Huskinhano was talking about final drive ratio at first gear.
__________________
Oversized sig pics nobis delenda est. No need for that anymore, I found Hide avatar choice.
Arto65FB is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:56 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.