Ran another Pullied 03' Cobra in my LS1 T/A **VID
#24
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No doubt, it's really weak for a F1...but that's what they typically make on a 4v Cobra motor. I'm not sure why really. It seems like the twin screws make more power at the same boost & same rpm, which is counter-intuitive really. That's probably why no one runs a centrifugal in a '03 Cobra. However, there are guys running YSi's and some larger centrifugals and their running the numbers they should (8's).
#27
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I feel the opposite. I've never been impressed with kb's compared to whipples. I feel like every kb car I've seen makes less tq then a whipple with the same boost and set up. I also have seen people have issues with the kb's and needing to replace the seals
#31
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They can run low 11s at 120-123 but thats the best. Most i've seen around here run low 12s at 116-118.
High 11's is very common though.
#32
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Plus Whipple's look better
#34
They are both good blowers...My buddies car makes 770rwhp with a whipple 3.4 and it doesnt even have the crusher. It should make 800rwhp sunday. Its still 281 cubes. Very impressive I think. Good kill OP!!! You need to a find a good running ported cobra or more importantly a very good driver. your car is strong.