Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Classifieds
Media
New media
New comments
Search media
Log in
Register
What's New?
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More Options
Advertise with us
Contact Us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Hobbies & Interests
Gearheads
Gear ratios and stall converters
Search titles only
By:
Reply to Thread
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="swampratt" data-source="post: 3570584" data-attributes="member: 15054"><p>Some things to think about.</p><p>For best launch you would think a 4.56 rear gear would come out of the hole better than a 3.73</p><p>rear gear.</p><p>Yes it does but if you have a low stall torque converter (2000 RPM) with the 4.56 rear gear you may not get out of the hole as fast as a 3.73 with a 4000 RPM converter.</p><p></p><p>Speaking of a vehicle that gets traction, not one that spins the tires.</p><p></p><p>When I dealt with lighter cars for the strip the Powerglide was choice.</p><p>1.76 First gear in most of them and we would stick in a 5.14-5.46 gear but with a 32-33" tall tire.</p><p></p><p></p><p>How about a 3.89 gear with a 2 speed Glide and a shorter tire. </p><p>Would you run a 4000 stall to get a good launch.</p><p>I would or maybe a bit more stall speed.</p><p></p><p>The reason I bring this up is a little math 1.76 first gear in the Glide X 3.89 rear gear.</p><p>You get a 6.84 first gear ratio.</p><p>Lets look what happens with a 3 speed TH 350 with a 2.52 first gear.</p><p>2.71-2.73 rear gear puts you right in the 6.84 first gear ratio.</p><p></p><p>Yes a Highway gear and the TH 350 is darn near the same as the Glide with a 3.89 gear.</p><p></p><p>You would not go drag racing with a 2.73 rear gear and launch very well.</p><p></p><p>Or could you????????</p><p> </p><p>Lets say you used a 4,500 with that 2.75 rear gear and the TH 350..What happens now?</p><p></p><p>When I was setting up my 57 for a drag race against my friends 550 Wheel HP mustang i pulled the 3.73 gears and stuck in some 4.56 gears.</p><p></p><p>The launch on the street during testing still felt weak.</p><p>I pulled the 2500 stall and stuck in a 4500 Stall Coan converter.</p><p></p><p>Now it felt right I got a great launch with it.</p><p></p><p>If you make enough TQ I think you could do well with a 2.75 and high stall with the TH350</p><p></p><p>I may be testing that theory soon.</p><p></p><p>Fun with numbers.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3570584, member: 15054"] Some things to think about. For best launch you would think a 4.56 rear gear would come out of the hole better than a 3.73 rear gear. Yes it does but if you have a low stall torque converter (2000 RPM) with the 4.56 rear gear you may not get out of the hole as fast as a 3.73 with a 4000 RPM converter. Speaking of a vehicle that gets traction, not one that spins the tires. When I dealt with lighter cars for the strip the Powerglide was choice. 1.76 First gear in most of them and we would stick in a 5.14-5.46 gear but with a 32-33" tall tire. How about a 3.89 gear with a 2 speed Glide and a shorter tire. Would you run a 4000 stall to get a good launch. I would or maybe a bit more stall speed. The reason I bring this up is a little math 1.76 first gear in the Glide X 3.89 rear gear. You get a 6.84 first gear ratio. Lets look what happens with a 3 speed TH 350 with a 2.52 first gear. 2.71-2.73 rear gear puts you right in the 6.84 first gear ratio. Yes a Highway gear and the TH 350 is darn near the same as the Glide with a 3.89 gear. You would not go drag racing with a 2.73 rear gear and launch very well. Or could you???????? Lets say you used a 4,500 with that 2.75 rear gear and the TH 350..What happens now? When I was setting up my 57 for a drag race against my friends 550 Wheel HP mustang i pulled the 3.73 gears and stuck in some 4.56 gears. The launch on the street during testing still felt weak. I pulled the 2500 stall and stuck in a 4500 Stall Coan converter. Now it felt right I got a great launch with it. If you make enough TQ I think you could do well with a 2.75 and high stall with the TH350 I may be testing that theory soon. Fun with numbers. [/QUOTE]
Insert Quotes…
Verification
Post Reply
Forums
Hobbies & Interests
Gearheads
Gear ratios and stall converters
Search titles only
By:
Top
Bottom