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Author Topic:   Choosing a torque converter...
65_289
Gearhead

Posts: 761
From:
Registered: Jul 2001

posted 08-08-2002 02:02 PM     Click Here to See the Profile for 65_289   Click Here to Email 65_289     Edit/Delete Message   Reply w/Quote
I just want to hear your opinion on what rpm stall might be best for my car. I know calling a converter company is best, but I want to get a baseline, so that way if they say "You need a XXXX stall", I can tell if they are full of B.S. So here goes:

Car:
1965 Mustang coupe
Approx 3050 race weight
4.11 gears
9" rear with 31 spline axles, spool.
(Gonna be) C4 with a brake
26x8.5 ET Drag slicks on 15x8 wheels

Engine:
Roller 302 block
9:1 compression (too low, I know)
GT-40X heads
Standard rockers
B-cam (224* @ .050, .480 lift, 112* lobe sep)
Holley 650 dp
RPM intake
Tri-y headers (1 1/2 primaries) (should probably go with Super Comp headers)
2.5" cut-outs
Pertronix Ignitor & coil
Holley Strip Annihilator ignition box

That is all I can think of right now. On the Dyno, torque peak was 282 at 4100 rpm, and horsepower was like 262 at 6100.

[This message has been edited by 65_289 (edited 08-08-2002).]

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steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-08-2002 02:08 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
A couple hundred under peak torque.

3800-4000 stall


SteveW

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65_289
Gearhead

Posts: 761
From:
Registered: Jul 2001

posted 08-08-2002 02:09 PM     Click Here to See the Profile for 65_289   Click Here to Email 65_289     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
A couple hundred under peak torque.

3800-4000 stall


SteveW


Do you think that would create a problem driving 20 miles to & from the track?

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steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-08-2002 03:17 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
That shouldn't be a problem, especially if you can cruise at 70 mph.

SteveW

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65_289
Gearhead

Posts: 761
From:
Registered: Jul 2001

posted 08-08-2002 03:32 PM     Click Here to See the Profile for 65_289   Click Here to Email 65_289     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
That shouldn't be a problem, especially if you can cruise at 70 mph.

SteveW


LOL. Let's see, 70mph, 4.11 rear, 1:1 trans gear, and 205/70/14 tires gives us 3800 rpm. That'll make for some engine wear!

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steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-08-2002 03:36 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
No it won't, those short stroking 5.0s love it. Besides you'll be right on your peak torque for max gas mileage.

SteveW

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65_289
Gearhead

Posts: 761
From:
Registered: Jul 2001

posted 08-08-2002 03:38 PM     Click Here to See the Profile for 65_289   Click Here to Email 65_289     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
No it won't, those short stroking 5.0s love it. Besides you'll be right on your peak torque for max gas mileage.

SteveW


Seriously?

Oh yeah, how do you downshift with the B&M Pro Ratchet? And when you go through the traps, do you just let the engine wind down, or go into neutral?

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steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-08-2002 04:15 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Yes

Each stroke of the shifter will move the selecter one gear, only. We leave in in 3rd after the traps.

SteveW

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capri man
Gearhead

Posts: 6417
From: doerun, ga.
Registered: Nov 2000

posted 08-08-2002 04:56 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
yea what steve said. when going to netrual, i dont care what kind of shifter you have, there is always that chance (usualy driver error) of going into reverse and that is not a good thing!! i run a 3700 on a similar combo and it works well but i would really like a little more myself.

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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kid vishus
Gearhead

Posts: 6098
From: middle of NC
Registered: Oct 2000

posted 08-08-2002 06:33 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I would leave it in 3rd gear. I put mine into nuetral, but I have a pro-tree transbrake, and for my car to engage reverse, I have to push the button for the transbrake.

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