Offshoreonly.com - hp,speed on bullets cafes & flat bottom guns

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1bagger

02-08-2009 12:58 PM

Quote:

Originally Posted by 5050 (Post 2795534)

Any flat bottom guns with 500s?

1995 Kevlar TG with full cabin.
500HP Bravo 1 26" props 5300rpm = 70 GPS
perfect conditions ( 1 time only ) 72mph
Fresh water . Never been in salt water I hear salt water is a little faster .

Paul

RMPRam

02-08-2009 02:16 PM

1984 flat deck w/1100hp PSI supercharged motors w/#5's on the transom and no spacers, using 17x27 5bbl Mercury props, ran 104mph @6200rpm.

seafordguy

02-08-2009 03:21 PM

Quote:

Originally Posted by BDiggity (Post 2795532)

i have 26p 4blades myself but i think i am propped too big. this summer i only saw about 4200-300 rpm at wot. was thinking of going down to 3blades

I have a set of 24's 4 bladers too but have never put them on because I seem to run right about 5100-5200 with the 26's, so I think I am propped right.

I might throw them on this year though just to be easier on the drives when I have a boat full.

Hollowpoint

02-08-2009 06:17 PM

I'm about with Seaford. 454's with 250 Blowers not dynoed, guessing around 550-570HP a side. Low to mid 70's at about 5100rpm.

jryan26

02-08-2009 07:12 PM

5050's boat runs great. Used to be scary until he put full hydraulic steering on it!

GLH	02-08-2009 08:39 PM

Quote:

Originally Posted by BDiggity (Post 2795532)

i have 26p 4blades myself but i think i am propped too big. this summer i only saw about 4200-300 rpm at wot. was thinking of going down to 3blades

that is way low you need 24"'s

offshoredrillin

02-09-2009 09:10 AM

Quote:

Originally Posted by BDiggity (Post 2795532)

i have 26p 4blades myself but i think i am propped too big. this summer i only saw about 4200-300 rpm at wot. was thinking of going down to 3blades

I have a set of 24 p 4 blades in great shape for sale. 850.00 includes shipping.

http://i305.photobucket.com/albums/n...pbravos001.jpg

http://i305.photobucket.com/albums/n...pbravos002.jpg

http://i305.photobucket.com/albums/n...pbravos003.jpg

not sure if it will apply, but with my 500 efis stock and my straight hull tiger, i ran 72-73 if was real light..70-71 every day.

eichhoma

02-09-2009 09:23 AM

I got a flat bottom gun with 525sc's and it has been about 76-77 on gps..... building some 502's/625 HP as we speak.... looking forward to seeiing what I get out of those....

Sea-Dated

02-09-2009 11:25 AM

My Cafe' with 500's in fresh water best has been 69.8 on GPS. Was told it would do 72 in salt but never tried it.

5050	02-10-2009 09:08 PM

Quote:

Originally Posted by 1bagger (Post 2795641)

1995 Kevlar TG with full cabin.
500HP Bravo 1 26" props 5300rpm = 70 GPS
perfect conditions ( 1 time only ) 72mph
Fresh water . Never been in salt water I hear salt water is a little faster .

Paul

how much diff. between a kevlar tg & a non kv tg with 500s as far as speed?

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