[NG329]

Spinning the SC faster would obviously generate more heat but I am wondering if after adding a 8% lower pulley (+40HP) if the SC Coolant Expansion tank would offset any gains in IATs.

[ChadSZL1]

Are you tracking the car? Or just street/drag strip?

[NG329]

Originally Posted by ChadSZL1

Are you tracking the car? Or just street/drag strip?

Both but definitely more Track and already running E40.

[KingLT1]

Port blower, don't change pulley, will make more boost without spinning harder.

X port and 2.5 makes 12.5 psi @ 6500rpm.

Manifold temps don't go above 140 in the summer = No timing pull.

[NG329]

Originally Posted by KingLT1

Port blower, don't change pulley, will make more boost without spinning harder.

X port and 2.5 makes 12.5 psi @ 6500rpm.

Manifold temps don't go above 140 in the summer = No timing pull.

Gotcha. Thanks for providing those #'s.

The expansion tanks have shown to be good for another 10*F reduction. I'll probably do that as well.

[CW3SF]

Originally Posted by KingLT1

Port blower, don't change pulley, will make more boost without spinning harder.

X port and 2.5 makes 12.5 psi @ 6500rpm.

Manifold temps don't go above 140 in the summer = No timing pull.

This.