3.125 pulley?

[Maximus67]

Am running a Vortech V2-SQ on a 99 Cobra ... all stock internals. Have the stock pulley currently -- 3.60. Can I run a 3.125 pulley and still get by with stock internals? I don't race the car ... mostly show and some messing around out on backroads. Thanks.

 

[GR8WHITE]

Stock PSI should be around 8, so that should get you around 14 PSI with the 3.1 pulley. The car will need to be retuned most certainly. Yeah you could do it. I don't know how long it would last. That will depend on the tune and your right foot habits.