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Pros and Cons of converter

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Old 03-10-2010, 08:41 PM
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Default Pros and Cons of converter

I will be getting a performabuilt shortly. Its either a level 2 or the heavy hauler, but I am still on the fence about that. My question is about the converter options that they offer. Whats the good and the bad points about the "regular 9.5" and the Billet 10.5" that they have.
Old 03-10-2010, 08:49 PM
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9.5" would be better for an N/A application because it will rev faster, it's less rotational mass, and it will be a bit looser and flash higher

The 10.5" would be better for F/I or nitrous applications where locking it up in 3rd gear to have a much better top end. The 10.5" would also be a better converter if you plan on towing.
Old 03-10-2010, 08:54 PM
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Originally Posted by 00ChevyScott
9.5" would be better for an N/A application because it will rev faster, it's less rotational mass, and it will be a bit looser and flash higher

The 10.5" would be better for F/I or nitrous applications where locking it up in 3rd gear to have a much better top end. The 10.5" would also be a better converter if you plan on towing.
Couldn't have said it better! In the end, it depends on what your goals are.
Old 03-10-2010, 08:55 PM
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I'm assuming their 10.5" billet converter is a multi-disk setup
Old 03-10-2010, 08:59 PM
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Goals are simple. Setup is below in the sig. Looking to put in around a 3K stall and not loose too much mileage in stop and go traffic. The way I understand it, the smaller the converter, the looser it will be, and end up flashing a bit higher than the advertised stall speed. I think a bigger bodied converter would help maintain gas mileage in traffic, right?
Old 03-10-2010, 09:01 PM
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Truck sees very little towing, random heavy loads in the bed, about 80 miles a day, about 30 of which are in traffic. Just the average DD thats getting a new trans and converter. Is billet overkill for my application?
Old 03-10-2010, 09:03 PM
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In town traffic will suck with just about any converter. What kind of mileage do you think you get now in stop and go traffic? I'm willing to bet it's lower than 10mpg depending on speed you're traveling and how many stops.

The diameter of the converter does change how the converter reacts, but all that can be changed with how the converter is set up. Also, a 9.5" converter will make your trucks idle much harder to tune and you may have stalling issues until you get the tune spot on.
Old 03-10-2010, 09:04 PM
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Originally Posted by 03 BLACKOUTSSS
Truck sees very little towing, random heavy loads in the bed, about 80 miles a day, about 30 of which are in traffic. Just the average DD thats getting a new trans and converter. Is billet overkill for my application?
I don't think it'd be overkill. Whats the harm in paying a little extra for a superior product? If you're going to stick with N/A I would suggest a 9.5" converter, although a 10.5" will do just fine as well.
Old 03-10-2010, 09:04 PM
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The converter I have would be perfect for you, just in the 4l60 version. Pro Truck 3600. I would not go any lower than 3600 IMO.
Old 03-10-2010, 09:06 PM
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Originally Posted by GMCtrk
The converter I have would be perfect for you, just in the 4l60 version. Pro Truck 3600. I would not go any lower than 3600 IMO.
Buying their transmission with one of their torque converters = a better warranty, which I'm pretty sure is what the OP is going for.


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