Quote:
Originally Posted by KingLT1
Just wanted to update that a Friend of mine had this SMG pump installed on his 2016 SS.
Mods:
Rods/Pistons 377 (10.7:1)
Ported heads
BTR stage 2 centri cam with 38% lobe
LPE HPFP
+30 FIC injectors
P1x stage 2 with 8" lower 3.9 upper(12psi)
Based on the logs this setup is trying to make around 800-820whp.
On E50 this low side pump will not hold pressure above 6200rpm. It drops like a rock down into the 30's and rail pressure tanks. I tried SMG's suggested pump settings and everything in-between. If we turn the JMS voltage booster on, then the pump holds pressure perfectly, but this pump does not like the voltage booster. It causes the FSCM to throw insufficient fuel codes which never happened with the LT4 low side pump. The fact that the pump will hold commanded pressure with a JMS tells me that it simply isn't capable of keeping at normal drive voltage. So, it's not an issue with the FPR bypassing excess pressure.
Anybody out there that has made one of these work on a 800whp + build running E50+ I am all ears!!
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You found the reason no one making any real power runs that set up...