Quote:
Originally Posted by cupcakez
Maybe should mention what else you modded to fit the 3.47" and 3.0" pulley on the SC belt side. IIRC you needed pulley spacers of a certain size and needed to change the idler pulley on the SC side as well? To make this combination work or no?
And that you have a turbo guard instead of the K&N air filter to be able to make the 16.4 psi, since I'm not sure if everyone is running with a turbo guard or not.
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The spacers you can get from 928 for less than $30.00. Those have nothing to do with boost levels as he was asking about.
My car made over 10 psi with the Si sc, 9lb pulley and stock filter. That's why I believe he will make over that with the 928 upgrade.
But yes, when I went to the 3.47/3.00 combo I went to the turbo guard.
My car also made 12.86 psi with the stock Si sc, 9lb pulley, stock 3.2 jackshaft pulley, upgraded 2.85 sc pulley and stock filter.