torque convertor size

Reply Subscribe

Thread Tools

Search this Thread

Nov 14, 2011 | 06:47 PM

johnnied

Thread Starter

Instructor

Joined: Oct 2007

Posts: 124

Likes: 1

From: baltimore ohio

torque convertor size

100% street use, do you guys think a 10" convertor will cause to much heat? Thanks

Nov 14, 2011 | 06:51 PM

TedH

Le Mans Master

Joined: Feb 1999

Posts: 8,351

Likes: 75

From: Tampa Bay FL

Quote:

Originally Posted by johnnied

100% street use, do you guys think a 10" convertor will cause to much heat? Thanks

I would locate a nice 1800rpm stall converter from the aftermarket. Stock diameter and not much more heat than OEM. That is what I run with my 700R4, 3.54 spicers and warmed-over L48. Smokes the tires off the line (no neutral drop) and barks between 1-2. I got it with my 700R4 conversion from Bow-Tie overdrives. If you are 100% street use, I wouldn't go as small as 10" unless you are also mixing a lot of 'Saturday Night Special' usage.

the 1800rpm stall converter is right at the bottom end of my power curve; meaning my power REALLY takes off around 1800rpm vs. having to rev into a higher power band at launch. I essentially mash the 'go pedal' and hang on!!!

Nov 14, 2011 | 06:59 PM

forvicjr

Burning Brakes

Joined: Jul 2009

Posts: 1,132

Likes: 14

From: A town SC

I have stock converter with 496 and roll through first and mash it in second and instant tire smoke. Engine cam and gearing determine converter size.

Nov 14, 2011 | 08:16 PM

Tim H

Safety Car

Joined: Oct 2000

Posts: 3,593

Likes: 103

From: Southern Indiana

Isn't 1800 about stock? Not much use changing the one you got for that.
You can get a 10 inch built tight and will take right off, or stomp the gas and its like popping the clutch at 3500 rpms.

Nov 14, 2011 | 09:21 PM

Vette79C3

Pro

Joined: Jul 2008

Posts: 699

Likes: 3

From: Millersville, MD

Quote:

Originally Posted by johnnied

100% street use, do you guys think a 10" convertor will cause to much heat? Thanks

Just did this project over the summer. Installed a Vigilante 2800 stall converter on a 79. I have a complete top-end rebuild along with a rebuilt 350 tranny.

Nov 14, 2011 | 10:13 PM

DRIVESHAFT

Drifting

Joined: Aug 2005

Posts: 1,682

Likes: 3

From: League City TX

A tight 10" will work just fine. A good 10" converter isn't even noticeable until you accelerate hard.

Nov 15, 2011 | 06:39 AM

TedH

Le Mans Master

Joined: Feb 1999

Posts: 8,351

Likes: 75

From: Tampa Bay FL

Quote:

Originally Posted by Tim H

Isn't 1800 about stock? Not much use changing the one you got for that.
You can get a 10 inch built tight and will take right off, or stomp the gas and its like popping the clutch at 3500 rpms.

You are probably right. I did some research and 1600-1800 is about 'stock'. Funny, with my setup the car still overpowers the tires off idle and well into 2nd. Probably due to the heavy bias toward torque when my mechanic (at the time) first rebuilt the engine and then when I added better parts over the years. A blast to drive.

Just checked and the Holeshot is still only 2,000 stall for 700R4; $320 at Summit.

My Bowtie trans is the 'Stage 2' 700R4; 2200rpm stall. I've had the trans in my C3 since 2000; no issues.

Last edited by TedH; Nov 15, 2011 at 06:51 AM.

Nov 15, 2011 | 07:04 AM

tekvette

Racer

Joined: Jun 2011

Posts: 251

Likes: 0

Quote:

Originally Posted by johnnied

100% street use, do you guys think a 10" convertor will cause to much heat? Thanks

Too much heat-no not at all.
I drove around for years with an 8" and it never overheated. I have a big *** cooler though.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

10 Ugly Corvettes That We Still Kinda Love

Joe Kucinski

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

Brett Foote

10 Things Every Corvette Owner Needs (2026 Edition)

Michael S. Palmer

8 Most "Only Corvette Owners Understand" Quirks and Problems

Pouria Savadkouei

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Joe Kucinski

How Much Horsepower Every Corvette Engine "LOST" in 1972

Joe Kucinski

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Michael S. Palmer

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Joe Kucinski

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Nov 15, 2011 | 04:06 PM

johnnied

Thread Starter

Instructor

Joined: Oct 2007

Posts: 124

Likes: 1

From: baltimore ohio

thanks 10" it is

Nov 15, 2011 | 05:12 PM

#10

l88rocket

Melting Slicks

Joined: Feb 2006

Posts: 2,209

Likes: 0

From: Mo

IMO opinion a 1800 stall isnt worth the time to install it, might as well get in the 2k range and see a noticable difference

Nov 15, 2011 | 06:23 PM

#11

johnnied

Thread Starter

Instructor

Joined: Oct 2007

Posts: 124

Likes: 1

From: baltimore ohio

Quote:

Originally Posted by l88rocket

IMO opinion a 1800 stall isnt worth the time to install it, might as well get in the 2k range and see a noticable difference

I'm going with 2500 -2700

Nov 15, 2011 | 06:23 PM

#12

johnnied

Thread Starter

Instructor

Joined: Oct 2007

Posts: 124

Likes: 1

From: baltimore ohio

I'm going with 25-2700

Nov 15, 2011 | 07:19 PM

#13

TedH

Le Mans Master

Joined: Feb 1999

Posts: 8,351

Likes: 75

From: Tampa Bay FL

Quote:

Originally Posted by l88rocket

IMO opinion a 1800 stall isnt worth the time to install it, might as well get in the 2k range and see a noticable difference

I agree. I think mine is the 2,200 stall converter. The car is too much of a blast off the line from idle to have a 'stock' converter... I overpower the tires WAY too easy but that may be more a result of the engine setup than a loose converter

That said, it is a stock diameter converter available for under $200 from BowTie (for a 700R4) but I bet you could find a similar item for your TH350/TH400 if you look beyond Summit/Jegs.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump