454 build and dyno test
08-03-2018 | 06:24 AM
#61
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From: frankenmuth michigan
Dynoed motor 2 NA and then with whipple on it. Made very, very close power numbers, first time i ever built two matching engines for a boat so was real curious how far apart they'd be.
So with blower on and what we're calling the "5 psi pulley", hp/tq numbers were less than 5 from motor 1. Spent more time refining 5 psi tune on dyno and got into the 700's and brought tq up (leaned out top under boost to a range of 11.5 to 12.2) wo r ked on what it like in mid range. Dragged it at part throttle to refine alot of the 60/70/80/90 map tabled.
So with blower on and what we're calling the "5 psi pulley", hp/tq numbers were less than 5 from motor 1. Spent more time refining 5 psi tune on dyno and got into the 700's and brought tq up (leaned out top under boost to a range of 11.5 to 12.2) wo r ked on what it like in mid range. Dragged it at part throttle to refine alot of the 60/70/80/90 map tabled.
