Highest HP out of a ZR1 to date!!
It isn't an intake manifold, it is an inlet for the blower.
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My TVS1900 makes 640 RWTQ on a 661 RWHP setup, The ZR1 makes 740 RWTQ with over 752 RWHP - THAT is low end.
You also have to take into consideration the power curves.
Guess you haven't heard the compound boost ford gt's out of unleashed tuning in jacksonville....those only make 1200rwhp compound is simply a gimmick for people who want a "bolt on" turbo system for a stock supercharged car. There is no point to it. Upgrade the s/c or buy the CORRECT size turbos. The hellion car is the prime example on the GT500. Makes around 800ish with compound... remove the s/c and it makes about 1000 on the boost. You can view hellions' own video on youtube if you doubt it.
Imo turbo>centri>twin screw>roots
I've seen GT500 with compound Hellion setup Twin 68mm turbos and stock blower it made 730rwhp with 17psi after that they removed the blower and put custom intake with the same boost made close to 800rwhp

So the stock blower is a freaking restriction but with those big turbos the car was so laggy on the street so the blower fixed that..

So the stock blower is a freaking restriction but with those big turbos the car was so laggy on the street so the blower fixed that..


