Most boost you can run "safely"
07-01-2005, 01:09 PM
#2
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"Boost" isn't the same between superchargers or turbochargers. Or even between different spec turbos for that matter. That said the F20C has proven to be pretty stout. I wouldn't be suprsed to see a relaible 400+WHP on stock internals and pump gas. You'll be "safe" at whatever boost level you tune [well] for.
07-01-2005, 08:28 PM
#4
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We've run 13 psi on a stock bottom end with 10.4:1 compression on 91 octane. This is a Vortech supercharged car, which means that midrange boost is less (and that's where detonation tends to be most likely). With compression in the 9.5:1 range up to 15 psi on 91 octane is feasible as long as the turbo is in its efficiency range and you have a good intercooler and tuning.
UL
UL
tuning is going to be key. inline put down 530whp on the stock bottom end with lowered compression via headgasket.
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07-04-2005, 01:44 PM
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Slightly less than 10:1 compression ratio and a good tune with an AEM EMS or MoTeC, 12 - 13 psi on 93 octane would be on the conservative side. 15 psi with water injection.
07-05-2005, 12:35 PM
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i have aquamist i agree with fperra, methenal injection ( is what i use) is super safe and i have run up to 18lbs now i have turned it down a bit im @1.2 bar not everyday though via headgasket and aquamist
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