Switched to SDCE, which blower pulley now?

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Apr 25, 2011 | 03:01 PM

GR8GAME

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From: Nor-Cal

Switched to SDCE, which blower pulley now?

With a 7.65 procharger crank pulley the setup hit 14PSI

Now with an SDCE 7.25 crank pulley, which blower pulley would I need to reach the same?

Thanks,

Matt

Apr 25, 2011 | 08:59 PM

Aster

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From: Austin, Tx

What size head unit pulley did you have before? You just need to do the math to keep the blower turning the same speed.

Get the old ratio, 7.625 / < hu diameter>
Now to get the new size you divide the 7.25 by that ratio.
For instance 7.625 / 3.85 = 1.9805
7.25 / 1.9805 = 3.66
From there pick the closest size they make, smaller if you don't mind over shooting a little, slightly larger if you want to play it safe.

Apr 25, 2011 | 09:24 PM

GR8GAME

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From: Nor-Cal

4.25. I'll plug that in. Thx

Apr 25, 2011 | 11:04 PM

Aster

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From: Austin, Tx

Should be a 4" pulley then.

Apr 25, 2011 | 11:37 PM

GR8GAME

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What kind of power is your ride making, Aster? That's a sweet piece of machinery you came up with!

Apr 25, 2011 | 11:53 PM

blue00ZZleeper

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Hell yea it is. I love the bracket!

Apr 26, 2011 | 10:07 AM

Aster

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From: Austin, Tx

Quote:

Originally Posted by GR8GAME

What kind of power is your ride making, Aster? That's a sweet piece of machinery you came up with!

Right now I'm using a 3.85" head unit pulley and so far the car has put down 715 hp / 642 tq. Need to do some more tuning on it, but want to do a few more things first.

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Apr 27, 2011 | 07:25 AM

GR8GAME

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From: Nor-Cal

400 crank hp

I'm still on the stock longblock. Hoping it lasts cuz I'm broke.

Apr 28, 2011 | 01:03 AM

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Greenthumb LS1

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From: sacramento

Gonna be sick when it's together. Billy started tuning my car on e85 today. I'll have full numbers tommarow but so far it's making 435/500 only taking it to 4200 rpm.