2400 vs 2800 converter - MustangForums.com


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Old 04-09-2013, 03:38 AM   #1
Galactusz
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Default 2400 vs 2800 converter

I'm working on my 65 Mustang...my rebuilt 302/306 engine is almost done (aluminum heads, RPM intake, and other goodies)...but I need info on these stall converters.

I'm going with my stock Ford-302 cam, will have a 3:27 gears installed pretty soon.

I have been googling the net...so I don't have to bother you guys, but I'm still confused...as I'm a rookie in terms of mechanics (a friend is helping me).

My questions:

1. Which converter will give me more acceleration off the block?

2. Which converter will be a bit slower off the block, but will give me a smoother highway ride (like a fourth gear), and perhaps even save me a couple of miles per hour of gas?


I'm looking at these two from Summit Racing:

http://www.summitracing.com/search?k...707%2013&dds=1

http://www.summitracing.com/search?k...mm+50441&dds=1


I'd appreciate a bone thrown at me, I'll eat it, lol.

Hector
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Old 04-09-2013, 07:46 AM   #2
fastbackford351
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My engine is a mildly warmed over 351W, probably about 325-350 hp according to my butt-o-meter and when I had my C6 transmission rebuilt I went with a 2400 stall converter. This is about the size that Ford put in from the factory when they wanted a bit more grunt off the line from their factory performance small blocks but still have good road manners.

When you're doing a stock rebuild, it's tough to beat what the factory did originally.

When I started doing my rebuild, I studied what FoMoCo installed in their factory offerings and tried to ape them where I could. Build it like Ford did and it'll be as reliable as an anvil for a long, long time.

Last edited by fastbackford351; 04-09-2013 at 07:52 AM.
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Old 04-09-2013, 12:42 PM   #3
Al Newman
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With a stock camshaft, stick with the stock converter. Rule of thumb is to determine the power range of the camshaft being used, then use a stall converter that will just fit into the range. If, for example, your camshaft has a power range of 2200-5800 rpm, use a stall converter just larger than the 2200 number. Anything other than a standard stall converter is going to compromise your economy and won't really give you any more grunt.

As for the rear gears, I don't know of anything in the 3.27 ratio that will fit your rear axle unless, perhaps you have installed a later model 8.8" rear end. You will have 2.79, 2.80, 3.00, 3.25, 3.40, 3.50, etc.
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Old 04-09-2013, 06:55 PM   #4
rmodel65
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the power you are making is actually gonna determine the actual stall...
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Old 04-09-2013, 07:20 PM   #5
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340 HP.

Thanks for repying guys, keep them coming!
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Old 04-11-2013, 05:46 PM   #6
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If you fill out a short questionnaire, TCI transmissions will help you make the correct choice.
http://www.tciauto.com/tc/support/
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Old 04-12-2013, 03:49 PM   #7
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Thank you, I'll look into it.
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Old 04-13-2013, 11:39 AM   #8
69mach1377
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Quote:
Originally Posted by Al Newman View Post
With a stock camshaft, stick with the stock converter. Rule of thumb is to determine the power range of the camshaft being used, then use a stall converter that will just fit into the range. If, for example, your camshaft has a power range of 2200-5800 rpm, use a stall converter just larger than the 2200 number. Anything other than a standard stall converter is going to compromise your economy and won't really give you any more grunt.
Yeah, don't put a high stall on a low rpm cam...I bet the stock cam runs out by 4800.
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Old 04-13-2013, 05:54 PM   #9
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We are in the process of solving the problem, thanks guys.
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