How fast do you guys run?
04-16-2002, 09:06 PM
#11
Registered
Join Date: Jan 2002
Location: New Port Richey,FL
Posts: 76
Likes: 0
Received 0 Likes
on
0 Posts
98 Convincor 253 75.3 26 Hydromotive 69 with 26 bravo
Changed Carb to 850cfm AED last Sunday ran 73.4 gps at 5250
and still pulling hard with 24 hydro.I hope try a 26 hydro this weekend!
Changed Carb to 850cfm AED last Sunday ran 73.4 gps at 5250
and still pulling hard with 24 hydro.I hope try a 26 hydro this weekend!
04-17-2002, 11:35 AM
#14
Registered
Join Date: Jul 2001
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
guys, i have a 1997 253 with a 525sc, a hydromotive quad 4
did not work on my boat.rpms were there but the boat was
sluggish all the way up the rpm range.ran exactly the same as my bravo one 4 blade on the top,why run the same mph but take a lot longer to get there,tried 2 different sizes,took them off and sold them.just my .02.------joe
did not work on my boat.rpms were there but the boat was
sluggish all the way up the rpm range.ran exactly the same as my bravo one 4 blade on the top,why run the same mph but take a lot longer to get there,tried 2 different sizes,took them off and sold them.just my .02.------joe
04-17-2002, 02:22 PM
#16
Platinum Member
Join Date: Oct 2001
Posts: 494
Likes: 0
Received 0 Likes
on
0 Posts
prop
hirschy; their is no way you can pull a 27 pitch 4 blade! unless you have 550 hp or better! talk to tom at hydromotive, he made me a 25 pitch 4 blade! i turn it 5300 rpms with a 500hp efi motor.i have the same hull as you> BILL
04-17-2002, 05:40 PM
#17
Guest
Posts: n/a
thanks bill, i'll talk with tom soon, we came to the conclusion a 27 4 blade labbed would get me to 5150 rpm which is the ideal rpm for my 500hp, obviously i need some more info.My boat is with my mechanic to do some warranty work , looking at installing whipple sc says he'll give me a great deal. anyone install whipple? How much should i expect to pay including new carb and installed? hirschy
04-17-2002, 05:49 PM
#18
Registered
Join Date: Jul 2001
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
Gameover-running a stock 26" bravo 1 4 blade-
solid hub-also tried a Spinnelli ,too much vibration,
broke a blade on the spinnelli,porosity in the weld,
mirage plus does not like trim on my boat,tried 6 props
over 2 years,mercruiser bravo 1 works on my boat-----joe
solid hub-also tried a Spinnelli ,too much vibration,
broke a blade on the spinnelli,porosity in the weld,
mirage plus does not like trim on my boat,tried 6 props
over 2 years,mercruiser bravo 1 works on my boat-----joe
04-18-2002, 07:44 AM
#20
Platinum Member
Join Date: Oct 2001
Posts: 494
Likes: 0
Received 0 Likes
on
0 Posts
hirshy; call knuckle marine about superchargeing,they quoted me 7300 to pro- charge my 500hpefi motor.the whipple is a little more, not sure how much more!they do a lot of performance stuff on checkmates and other models.here is their web site address kunkels marine.com they have a excellent repatation. bill
