Quote:
Originally Posted by dre99gsx
Why did VF stop at the 570 kit? Would be nice if they offered a "race" Stage3 kit!
Based on HPF's turbo data, they seem to be able to push 600whp on stock internals (granted better gas than 91 octane):
LHD Stage 2 Dyno
91 Octane (518hp)
91 Oct + Alc (670hp)
110 Octane (731hp)
110 Oct + Alc (762hp)
Multiply by 0.82 for rwhp
60-130mph in 6.86 sec
Factory Internals
It would seem that VF could go one more step further, perhaps a VF670 kit which requires meth or race fuel at the minimum (perhaps 12-14psi?).
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VF does offer a stage 3, but it's custom build only and requires a built motor with lower compression. While running a meth dependent tune is feasible, it's not reliable. Most fail-safes on meth kits are connected to the boost controller; of which a centrifugal SC does not have. A meth pump fails and there goes your motor.
VAC even has a VF/VAC710 kit listed on their site.
I'm actually ordering an Aquamist meth kit shortly, but only for extra cooling and a slight octane boost on the track. It will have 6 jets spraying an ~17% mixture-to-fuel ratio 4 inches before each TB; with flow relative to the fuel injector duty cycles.