ned help guy's

[churro]

i have 03 cobra with 2.7 pulley k&n and tune by JDM Engineering, im thinking to buy the lower pulley i want the 10LB is goin to be to munch of boost?

 

[perry2k12]

No most guys run the 12# lower

 

[RichM1983]

No most guys run the 12# lower

:dw:

4 lb lower with a 2.93 upper is the accepted norm on a ported eaton. Stock eaton is just the 2.7x.

 

[joel3431]

lets do the math here.. 2.7 upper.. around 14-15 psi plus 10 extra lbs.. 24-25lbs.. Stock eaton is already over "spinning" with a 2.7 upper.. IMO with a 2.7 upper I would not go over a 2lb lower although some run a 4lb.

 

[Avispa]

lets do the math here.. 2.7 upper.. around 14-15 psi plus 10 extra lbs.. 24-25lbs.. Stock eaton is already over "spinning" with a 2.7 upper.. IMO with a 2.7 upper I would not go over a 2lb lower although some run a 4lb.

Yeah what he said. You'll roast that Eaton if you use the car as a DD with a huge lower pulley. Did you get Jim to tune your car at Strickly's dyno when he was here or was it a mail order? Bring the car to Otto's BBQ in Stafford one Saturday evening when the weather warms up a bit!

 

[badazzebz06]

2.93 6lb lower on a port...end of story

 

[b_dike]

No most guys run the 12# lower

Lol... :burn: