[ChadSZL1]

Does anyone know what size lower pulley LME is running on their 850 flex package? I am currently running an 8.66 Lower and with the cam I just barely over stock boost. Trying to squeeze another 30-40rwhp with the addition of the DSX aux pump and a lager pulley.

[JSH]

Originally Posted by ChadSZL1

Does anyone know what size lower pulley LME is running on their 850 flex package? I am currently running an 8.66 Lowe and with the cam I just barely over stock boost. Trying to squeeze another 30-40rwhp with the addition of the DSX aux pump and a lager pulley.

FWIW, my HPE 850 pkg. includes a 9.18 lower. They're both in the same city and it's a small industry, so that would be an obvious guess.

[ChadSZL1]

Thanks JSH! What boost does that put you at? I am guessing 12-13 psi?

[KingLT1]

I would Port the blower or look for one already done. Better than a pulley swap...makes more boost without spinning it harder.

[CW3SF]

Originally Posted by KingLT1

I would Port the blower or look for one already done. Better than a pulley swap...makes more boost without spinning it harder.

^I’d listen to this guy. You don’t have to pulley to make power on an LT4 and the extra heat is a power killer.

[JSH]

Originally Posted by ChadSZL1

Thanks JSH! What boost does that put you at? I am guessing 12-13 psi?

Going back to those first logs, yea, 13 psi is about right.

What does LME's pkg. include?