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Apr 28, 2019 | 01:40 PM

LS3_Alex

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Another Centri thread

I have a v2 with a 3.1 pulley at 13psi and e85 making around 700-750 through an A6
I have in my possession a YSI and I was recommended by A&A to use a 3.4 pulley. What boost level and power should I expect with the switch?

Apr 28, 2019 | 02:27 PM

harleyreb1

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From: Jackson MS

Stock cam/heads? Headers?

Apr 28, 2019 | 02:45 PM

LS3_Alex

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Quote:

Originally Posted by harleyreb1

Stock cam/heads? Headers?

stock head other than dual springs titanium retainers etc, custom grind camshaft

Apr 29, 2019 | 09:18 AM

VVVROOMTX

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First off, what trans is in the car? I would highly suggest getting that built.

Apr 29, 2019 | 03:33 PM

LS3_Alex

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Quote:

Originally Posted by VVVROOMTX

First off, what trans is in the car? I would highly suggest getting that built.

it is a built 6L80

May 6, 2019 | 04:47 PM

Creamo3

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From: Chicago IL

Stock crank balancer or 10% OD? How high are you revving? The YSI might be lazy with a 3.4" depending on impellar speed.

May 6, 2019 | 05:58 PM

LS3_Alex

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Quote:

Originally Posted by Creamo3

Stock crank balancer or 10% OD? How high are you revving? The YSI might be lazy with a 3.4" depending on impellar speed.

Stock balancer, shifts at 7000-7200

Last edited by LS3_Alex; May 6, 2019 at 07:07 PM.

May 6, 2019 | 06:46 PM

harleyreb1

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From: Jackson MS

My YSI setup with a 10% balancer and 3.47 pulley makes right at 15lbs.

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May 6, 2019 | 07:07 PM

LS3_Alex

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Quote:

Originally Posted by Creamo3

Stock crank balancer or 10% OD? How high are you revving? The YSI might be lazy with a 3.4" depending on impellar speed.

Quote:

Originally Posted by harleyreb1

My YSI setup with a 10% balancer and 3.47 pulley makes right at 15lbs.

On a ls3?

May 6, 2019 | 09:34 PM

#10

harleyreb1

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From: Jackson MS

Quote:

Originally Posted by LS3_Alex

On a ls3?

Yes LS3

May 9, 2019 | 08:56 PM

#11

LS3_Alex

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Well if anyone was curious it made 8psi on a 3.4 pulley. Goal is 15-16psi

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