Jason, you all you can have is a spring in the wastegate. You can run aftermarket efi or a programmable ignition to control timing but you take a weight hit. The fastest pass so far with these rules has been mid 5.3's. Can't use bullet wheel turbos and have to under 76mm. I believe weight is 3350 or 3300 for Steve' setup.
Fastest pass so far has been by a Ford small block turbo, but a turbo car hasn't won a race yet. They get 16+ car fields at every event too.
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Fastest pass so far has been by a Ford small block turbo, but a turbo car hasn't won a race yet. They get 16+ car fields at every event too.
Sent from my SCH-I545 using TurboBuick Mobile mobile app