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HP loss with built 4L60E?

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Old Apr 28, 2003 | 05:23 AM
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badass 2002 z28's Avatar
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Default HP loss with built 4L60E?

I was just wondering if you lose any power running a built 4L60E like an FLP level 4 or Speed INC stage 3?

Thanks
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Old Apr 28, 2003 | 06:31 PM
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02BlueFirehawk's Avatar
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Default Re: HP loss with built 4L60E?

built trannys are usually more efficent than the stock one. so i would assume you'd gain some hp.
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Old Apr 28, 2003 | 11:35 PM
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Default Re: HP loss with built 4L60E?

I know built TH350/TH400's take more power to turn over, you'd think it was the same case with a built 4L60E...

Anyone else got anything to say?
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Old Apr 29, 2003 | 11:58 AM
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Plum Crazy Rob's Avatar
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Default Re: HP loss with built 4L60E?

With an increased number of clutches in the clutch packs, wider bands, bushings, roller clutches with more elements, etc there is going to be more frictional and viscous drag.

Don't have any kind of "number" for you though
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Old Apr 29, 2003 | 12:12 PM
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Default Re: HP loss with built 4L60E?

I lost around 18rwhp when I rebuilt my 4L60E
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Old Apr 29, 2003 | 10:53 PM
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02BlueFirehawk's Avatar
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Default Re: HP loss with built 4L60E?

hmmm, makes me want to go re-dyno now that I have a stage3 tranny. I got a restall on the verter so it's hard to say. I did pickup 2/10s + 2mph after the tranny/verter swap.
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Old Apr 29, 2003 | 10:55 PM
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BIGBOS's Avatar
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Default Re: HP loss with built 4L60E?

You will lose a good amount w/the built 4l60e, but not as much as a Th400... Usually close to 30rwhp loss w/the 400...
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