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  • Thread starter Thread starter OnisimusD
  • Start date Start date Oct 13, 2025
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    1969 coupe help torque converter
O

OnisimusD

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Oct 13, 2025
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#1
  • Oct 13, 2025
  • #1
How’s it going, I just bought a 1969 mustang coupe and I don’t have too much mechanical experience, the car should be quick but it’s not at all, it has a 347 stroker, it’s on race gas, it’s got a ford performance 9in rear end, cal tracs, pretty much everything to make it a quick car, it’s got a “built c4 transmission” with a trans brake, but the car will not even break the rear wheels loose, I assume it’s the torque converter, the previous owner said he put a 2500 stall converter, but being that it’s got a decently big cam I would assume it needs a higher stall converter, but I’m not sure what it could be. Any help would be amazing, this is my first project car, just turned 18 and have little to no clue what to do
 

horse sence

15 Year Member
Nov 29, 1999
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#2
  • Oct 13, 2025
  • #2
What is the gear ratio ?
 
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OnisimusD

Member
Oct 13, 2025
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California
Oct 13, 2025
#3
  • Oct 13, 2025
  • #3
horse sence said:
What is the gear ratio ?
Click to expand...
4.10
 

Mcmahst

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Jan 19, 2021
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Laguna Woods CA, fort Mohave AZ
Oct 13, 2025
#4
  • Oct 13, 2025
  • #4
Be more specific, what do you mean by it’s not quick enough? When you plant the gas pedal to the floor from a stop, what happens? What you’ve told us it’s quite enough for us to help. Good luck.
 
O

OnisimusD

Member
Oct 13, 2025
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Oct 13, 2025
#5
  • Oct 13, 2025
  • #5
It’s all noise no go, it takes a good minute to gain speed, it’s super loud but feels like something is holding it back, it’s 0-60 is probably somewhere around 15-20 seconds
 

nickyb

I gotta say i never painted my nuts, Never Ever
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#6
  • Oct 13, 2025
  • #6
Sounds like the parking brake in on.
But seriously you need to go over the whole car since its new to you.
Start with a in depth tune up. But look into how to do it first.
Either look up on line or get to a car meet like cars and coffee ,find an old fart like me who could teach you.
 
O

OnisimusD

Member
Oct 13, 2025
8
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California
Oct 14, 2025
#7
  • Oct 14, 2025
  • #7
nickyb said:
Sounds like the parking brake in on.
But seriously you need to go over the whole car since its new to you.
Start with a in depth tune up. But look into how to do it first.
Either look up on line or get to a car meet like cars and coffee ,find an old fart like me who could teach you.
Click to expand...
Oh interesting, the previous owner said the parking brake was never hooked back up, so I’m curious if he was mistaken. I will for sure be taking the car out to some cars and coffees and trying to get some help there as well, thanks for the help
 
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Noobz347

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#8
  • Oct 14, 2025
  • #8
Is this a roller block with carb?
 

Bullitt347

I have been doing it wrong this whole time
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#9
  • Oct 14, 2025
  • #9
The ignition timing is retarded. That will kill power faster than anything.
 
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OnisimusD

Member
Oct 13, 2025
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Oct 14, 2025
#10
  • Oct 14, 2025
  • #10
Noobz347 said:
Is this a roller block with carb?
Click to expand...
I would have no clue, I don’t know enough to be able to tell you if it does or doesn’t, it is carbureted though
 
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OnisimusD

Member
Oct 13, 2025
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California
Oct 14, 2025
#11
  • Oct 14, 2025
  • #11
Bullitt347 said:
The ignition timing is retarded. That will kill power faster than anything.
Click to expand...
Would my best bet be to take it to a performance shop for them to advance the timing?
 

Mcmahst

5 Year Member
Jan 19, 2021
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Laguna Woods CA, fort Mohave AZ
Oct 14, 2025
#12
  • Oct 14, 2025
  • #12
I agree, just do a basic tuneup first. It may be something simple. If you don’t know how to do that, time to learn. And, buy yourself a few tools to do the job. It’s part of owning one of these cars. Good luck.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
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#13
  • Oct 14, 2025
  • #13
OnisimusD said:
Would my best bet be to take it to a performance shop for them to advance the timing?
Click to expand...

At this point, I think your best bet would be to go to [any] good mechanic and have it looked over.
 
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Mcmahst

5 Year Member
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Laguna Woods CA, fort Mohave AZ
Oct 14, 2025
#14
  • Oct 14, 2025
  • #14
Where in Ca are you located?
 
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OnisimusD

Member
Oct 13, 2025
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Oct 14, 2025
#15
  • Oct 14, 2025
  • #15
Mcmahst said:
Where in Ca are you located?
Click to expand...
Up near the Fairfield Ca area, or concord Ca
 

Mcmahst

5 Year Member
Jan 19, 2021
658
257
83
Laguna Woods CA, fort Mohave AZ
Oct 14, 2025
#16
  • Oct 14, 2025
  • #16
There is a mustang group up there, https://dvma.org/. One of the members might be willing to help you. Get in contact with them. That’s how lots of us have received help when we first started out. Good luck.
 
O

OnisimusD

Member
Oct 13, 2025
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California
Oct 14, 2025
#17
  • Oct 14, 2025
  • #17
Mcmahst said:
There is a mustang group up there, https://dvma.org/. One of the members might be willing to help you. Get in contact with them. That’s how lots of us have received help when we first started out. Good luck.
Click to expand...
Thank you very much, will shoot them a message
 
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