Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



Username Post: Torque converter selection        (Topic#349089)
LSS1333 
Forum Newbie
Posts: 21

Reg: 05-13-15
01-09-18 10:46 AM - Post#2720560    

Need help choosing torque converter and stall speed.

I have a 63 impala converter (probably close to 4000 lbs).
TH 350 transmission.
3.08 rear gears.
383 sbc roller cam, aluminum heads with about 415hp/430tq
Lunati 211/219 cam with .510/.515 lift @ .050
Nice street cruiser




 




Shepherd 
Frequent Contributor
Posts: 1255

Loc: Lake George, NY
Reg: 11-11-15
01-09-18 11:03 AM - Post#2720562    
    In response to LSS1333

Missing a big piece of the equation, diff gear ratio, and tire size?



 
LSS1333 
Forum Newbie
Posts: 21

Reg: 05-13-15
01-09-18 11:07 AM - Post#2720563    
    In response to Shepherd

differential 3.08
tire size approximately 27in tire



 
Shepherd 
Frequent Contributor
Posts: 1255

Loc: Lake George, NY
Reg: 11-11-15
01-09-18 03:09 PM - Post#2720585    
    In response to LSS1333

Educated guess with most convertor selections, too loose won't lockup till you are over 60, with that combo. I have about the set-up same in my 51 Belair sbc. Mine is around 2100, my car is way lighter than yours, but you make much more torque. I'd say 22-2400, but convertor ratings vary based on engine power.



Edited by Shepherd on 01-09-18 03:10 PM. Reason for edit: No reason given.

 
LSS1333 
Forum Newbie
Posts: 21

Reg: 05-13-15
01-09-18 04:14 PM - Post#2720593    
    In response to Shepherd

Thanks Shepherd,

I was thinking 1800-2000 stall, but the transmission comes with a 2500 stall. Was worried that 2500 might be too loose for my set up?



 
Shepherd 
Frequent Contributor
Posts: 1255

Loc: Lake George, NY
Reg: 11-11-15
01-09-18 05:49 PM - Post#2720605    
    In response to LSS1333

If it is truly 2500, agreed too loose and you would be what is called driving on the convertor to at least 60.



 
rumrumm 
"17th Year" Silver Supporting Member
Posts: 2071
rumrumm
Loc: Macomb, IL
Reg: 10-18-01
01-10-18 11:45 AM - Post#2720690    
    In response to Shepherd

Call a couple of converter manufacturers and speak with one of their technicians--see what they recommend and report back.

Lynn

"There's no 12-step program for stupid."


383 sbc, Eagle, AFR, SRP, CompCams, Edelbrock, FiTECH. Dyno #'s: 450 hp @ 5700, 468 ft. lbs. torque @ 4300.

http://photo.net/photos/Lynn%20Johanso n


 
65_Impala 
Very Senior Member
Posts: 4002

Reg: 12-29-02
01-11-18 07:14 PM - Post#2720822    
    In response to LSS1333

If you get that 2500 rpm stall converter with the transmission and can't avoid receiving it, then why not try it first?



 




Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

470 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.559 seconds.   Total Queries: 13   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 08:04 PM
Top