What Lower Pulley?

[overlake]

I have your ported blower in my car and a 2.80 upper pulley.
What lower pulley size should i buy from you?
I've heard 2" is the best way to go if you have a ported blower and 2.80" upper. Or can i go with a 4"?

Do you think i will need a tune?

 

[2003Slobra]

#2 or #4 would be fine. Yes, which ever kit you go with, you WILL need a tune.

 

[overlake]

No chance of overspinning the blower with a 2.80" upper and 4" lower?

I will probably put in an order tomorrow.
Just double checking with Mile Hi Dyno that they can make me a new predator tune first.

 

[Sniffer]

go with a 4# lower. i run this set up and i see about 17psi. no regrets.

 

[spincobra03]

you absolutly need a tune and I wouldnt worry about over spinning just make sure you get an alternator pulley if you dont already. you can get away with a 4lb lower, the best combo is a 2.93 and a 4lb however you do have a ported blower so I would really ask your tuner to be safe.

 

[BLKXTC]

Get a 2.91 or 2.93 and a 6lbs lower with a good tune and maybe a pump and injectors and you will be well turly excited!

 

[countrysvt]

could i do better than the 276 with a lower with out a ported eaton! like a 2 or 4 lb lower