New Formula owner 336 SR1
08-28-2015, 06:19 AM
#24
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Location: Birch Run, MI
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09-01-2015, 02:01 PM
#25
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Hey Rex
just checked in and saw your reply here
my boat is coast guard documented, so I only have the Michigan state reg sticker (3" x 3")
this boat does 75mph at 5100 rpm. Labbed 25 pitch 4 blades ( with 1:36 drive ratio)
with newer higher pitched props, imco shorties, and 1.50 my local formula expert says she could hit 80.. He has a 382 kevlar layup with a custom thunderbird mural by Formula.... beautiful boat.
anyway. I need to put the pics on pohotobucket or something to post them here... otherwise PM me and I will email some to you.
Ramb
just checked in and saw your reply here
my boat is coast guard documented, so I only have the Michigan state reg sticker (3" x 3")
this boat does 75mph at 5100 rpm. Labbed 25 pitch 4 blades ( with 1:36 drive ratio)
with newer higher pitched props, imco shorties, and 1.50 my local formula expert says she could hit 80.. He has a 382 kevlar layup with a custom thunderbird mural by Formula.... beautiful boat.
anyway. I need to put the pics on pohotobucket or something to post them here... otherwise PM me and I will email some to you.
Ramb
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09-01-2015, 02:47 PM
#29
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Hey Rex
just checked in and saw your reply here
my boat is coast guard documented, so I only have the Michigan state reg sticker (3" x 3")
this boat does 75mph at 5100 rpm. Labbed 25 pitch 4 blades ( with 1:36 drive ratio)
with newer higher pitched props, imco shorties, and 1.50 my local formula expert says she could hit 80.. He has a 382 kevlar layup with a custom thunderbird mural by Formula.... beautiful boat.
anyway. I need to put the pics on pohotobucket or something to post them here... otherwise PM me and I will email some to you.
Ramb
just checked in and saw your reply here
my boat is coast guard documented, so I only have the Michigan state reg sticker (3" x 3")
this boat does 75mph at 5100 rpm. Labbed 25 pitch 4 blades ( with 1:36 drive ratio)
with newer higher pitched props, imco shorties, and 1.50 my local formula expert says she could hit 80.. He has a 382 kevlar layup with a custom thunderbird mural by Formula.... beautiful boat.
anyway. I need to put the pics on pohotobucket or something to post them here... otherwise PM me and I will email some to you.
Ramb
Gonna agree with the Imco idea, I bet there 5 mph there on my 303, the few 303 blackhawk boats were a solid 80 mph boat, I'm at 74/75, and she loves trim,
09-01-2015, 07:30 PM
#30
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Yup, at WOT with three blades I can trim it a lot as well. With the Rev 4s I get better bow lift but still have to trim to about 7 to get top speed. In a couple years I think some good aluminum heads and shorties would help a lot, I am sure these drives are really deep
