Not only is this setup making more power but it is doing so more efficiently. Further details from VTT below.
Finally got another motor in the shop car, and on the dyno Friday before we left for the event on Saturday. With a little tuning by none other than our favorite N54 tuning guru Justin @V8Bait the car laid down a more than impressive 847WHP/726WTQ with an astounding 601WTQ by 3000 RPM held to redline, and 700WTQ held flat from 3500-6500RPM. This power, and tq was made with ONLY 25.4 psi at peak power RPM. We also made 776WHP at 21.62 psi boost at peak power!
This is a perfect example of why we continually tell people boost is simply measurement of restriction NOTHING else. Remove restriction, and power stays the same or goes up at the SAME boost pressure. This is our closed deck 9.5:1 compression motor, with fully built head, larger intake valves, Manley springs, TI retainers, etc. We are also running the EOS V2 manifold. Full specs below.
We took the car out to Shift Sector yesterday, and ran a new N54 1/2 record of 170.49MPH using the 776WHP map with 3 degrees less timing, then we tried to turn up the boost to the 850WHP map, but the we believe something happened to the diff or alignment, the car was all over the track, and very dangerous to drive, so we could not get a full run in. Even with the car near uncontrollable we managed a 168MPH run. We belive the car would have been close to 175MPH with the 850WHP map in it, had we been able to complete a full pass. (Chris will be doing a full Shift Sector post)
Breakdown of the car as it is right now:
Closed deck 9.5:1 compression N54 short block, forged rods, forged pistons
Fully Ported head with oversized intake valves, Manley springs, Ti Retainer, Stock cams
VTT GC turbochargers
Custom VTT inlets with 6" velocity stacks
VTT Double Barrel HPFP system
EOS V2 intake manifold with top PI
ADE 1100WHP FMIC
Custom triple Walbro LPFP set up with Radium Surge tank
MHD tuner tuned by V8BAIT
AEM Log Grab
AEM Log Grab
AEM 847 Log
MHD 847 Log
AEM 776 Log