Torque Converter
Thread Starter
Safety Car
Joined: Jun 2005
Posts: 3,841
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From: Inver Grove Minnesota
Torque Converter
What diameter converter would I use in place of the stock one? I'm running around 400 hp and I'll use 3.90-4.11 gears. I'm hoping to use a 2500 stall. Would this be enough or should I go a bit more?
Instructor
Joined: Aug 2004
Posts: 204
Likes: 16
From: Holly Springs NC
What size motor do you have? Street/strip or pure race? 350s have less low-end torque so its better to have more stall, and bigger cams move your power into higher rpms so they also need more stall. I have a 355 w/ about 400 hp that I want to keep streetable. So, I am going to go w/ a 3000 stall and 3.70. Hope this helps 
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Last edited by 75blackray; Sep 10, 2006 at 08:32 PM.
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Maybe a 3000 if your going to street drive, if your going to be a
racer more. With 390, 4.11s 2500 you never get anything for free
with more stall comes more slipage.
racer more. With 390, 4.11s 2500 you never get anything for free
with more stall comes more slipage.
Last edited by Little Mouse; Sep 10, 2006 at 08:39 PM.
Safety Car
Joined: Oct 2004
Posts: 3,921
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From: Youngstown Ohio
The amount of stall would depend on the torque curve of the engine, and how much you could live with on the street.... big or small block?......cam duration, vehicle weight, etc. But generally, 2500 is a good performance stall rpm, and most manufacturers utilize an 11" converter for this.
Thread Starter
Safety Car
Joined: Jun 2005
Posts: 3,841
Likes: 0
From: Inver Grove Minnesota
Well, I'm not gonna do the strip much at all. But I at least want to do it once a year maybe. I think I'll go with a 2500 stall just to keep the tranny temps a little lower.
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Safety Car
Joined: Oct 2004
Posts: 3,921
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From: Youngstown Ohio
Originally Posted by Little Mouse
Do they make converters that are for the 153 tooth flex plate and
another to fit the 168 flex plate ?? or will one converter fit either
size flexplate ??
another to fit the 168 flex plate ?? or will one converter fit either
size flexplate ??
Thread Starter
Safety Car
Joined: Jun 2005
Posts: 3,841
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From: Inver Grove Minnesota
I called Hughes and they said that it will fit my stock flex plate. He also said that I may want to think about going with a 3000 stall. The only problem I have with that is the price really jumps up when I want a little more stall.