Have 3.0 upper and stock lower...

[Tom]

Due to time and things being done to car... Going to throw a 3.5 upper on the Whipple 2.3 and 4# lower (other suggestions welcome - note: 93 octane). Anyway, with that setup (3.5 / 4#) that should net me 17-18#'s of boost - yes? Roughly the same HP and a bit more TQ?

Best products (e.g. brands, pn's etc..) to get for this task??? I am going to order some other things tonight.

Thanks in advance.

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[Zack]

I have a 3.5 Whipple pulley brand new for 50 bucks.

 

[Tom]

I have a 3.5 Whipple pulley brand new for 50 bucks.

Thanks, I might take that. Will keep you posted.

 

[10thSVT_03]

I have a 3.5/ 4# lower combo and went to a 3.25 to get more out of it. The 3.5 upper is a waste. Also make sure you have a accufab single blade throttle body. The3.5 didn't spin the blower enough to be honest. If you wanna trade that 3.0 for the 3.5 I have which is new I would do that also but I think you will be happier with the 3.25 4# combo

 

[TurboJuice]

I have a 3.5/ 4# lower combo and went to a 3.25 to get more out of it. The 3.5 upper is a waste. Also make sure you have a accufab single blade throttle body. The3.5 didn't spin the blower enough to be honest. If you wanna trade that 3.0 for the 3.5 I have which is new I would do that also but I think you will be happier with the 3.25 4# combo

Isnt this a bit aggressive for 93 octane?

I thought 17psi was the max boost on pump gas with a 2.3?