03 cobra 2.3 whipple stock lower 91 octane what pulley ??? Torco ??

ctozzi

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Looking for advice on what size pulley to run on my 2.3 whipple.
mods-
stock lower crank pulley
91 octane ( highest in vegas ) Can i add Torco on a regular basis to get me to 93+
KB BAP
80# injectors
stock manifolds
Bassani catted X
Borla Stingers catback

I only drive the car with my son on weekends or for a fun cruise to stomp on the gas here and there. Maybe 30-50 miles a month.

I was thinking 3.0 if i can add torco and be safe. e85 is scarce here so id rather use torco if i can figure it out for longterm use.

Thanks
Chris
 

Hef

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My good buddy just did this.....2.3 whipple, 2.75 pulley, 93 octane with Torco, 651hp
I'd go 2.75 pulley, about 19lb I think is what you'll get

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ctozzi

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Ha ha thanks. Any idea what size belt he used ?


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01yellercobra

AKA slo984now
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Friend of mine has a 2.3 with a 3.0 upper and stock lower. I think he makes 580-590rwhp on 91 octane.
 

ctozzi

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Ya I am leaning towards 3.0 upper with 91 and torco mix to get me to 93+


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