Rickey_Bobby
New Member
It was hardly worth installing a vortech strim? I picked a 120rwhp from the base kit. It has 42k on it now has never leaked and runs like a champ. The strim for the 4.6l is a straight discharge.
With that said I think Procharger makes a great Sc, I'm just not impressed with the P1SC. I would love a F1 from Procharger. Here again is a link to a 620+ rwhp 2v without nitrous running a strim. If I was to upgrade to a bigger centrifuge SC it would be the Novi 2000.
http://www.modularpowerhouse.com/forums/showthread.php?t=18244&highlight=vortech
Vortech S-trm is over 70% efficient with the straight discharge, and thats what the 4.6 uses . All Sc installs need a custom chip to run their best. On my mail order tune mine also felt sluggish but after the tune it was a different car.
http://www.vortechsuperchargers.com/products/units/
Yes, this is what vortech tells everyone. Thats Why I bought one. In real life it is 55-60% I have tested this directly as the compressor on my t-70 is IDENTICAL in flow capacity and design, and at 6K rpm (where the s/c was making 10#'s of boost) ... the turbo (also @ 10#'s) Still made made more power (68.3hp at the rear) when the flow charts of the turbo and supercharger indicate that they should be pushing the exact same CFM of air. Thats 100HP at the crank.
So using my dyno #'s as a base... assume 15% drive train loss All #'s at 6,000RPM
Turbo @ 10 psi/air inlet temp 122*F = 468RWHP (est. 538.2hp at crank)
V-2 s/c @ 10 psi/air inlet temp 98*F = 396RWHP (est. 455.4hp at crank)
Thats 82.8hp differance. OR 15.38% LESS power.
The T-70 has a MAXIMUM efficiency of 75%
75%-15.38% = 59.62%
Therefor, a V-2 SQ is about 60% efficient in the real world.
*All tests done on a stock 99 4.6L w/ PI heads. Car's fuel, ignition, suspension, and drivetrain were identical for both tests. Note the s/c dyno run was done on a day where the temp was 60*F while the turbo run was done this past summer at 85*F
-Steve