What out drive to use with 600 HP?
09-07-2024, 07:29 PM
#1
What out drive to use with 600 HP?
The new 502 engine is making around 600 HP and about the same in torque.
The boat is a 1998 Cobalt 252 that weighs 4500 lbs dry. Let's say full load and fuel 6,000 lbs.
Main use will be congested inland lake, so not many WOT runs. Mostly cruising and some tubing with the kids.
If I'm easy on the throttle, will a Bravo ! handle it? (already have a Halo max cooler)
https://www.driveshowers.com/
Will an upgraded Bravo I be sufficient? (Already have a Teague billet top cap) Maybe get the steel tower installed.
Will an XR or XZ be much better?
Don't think I'm anywhere close to needing an IMCO
Maybe just keep a spare Bravo I on hand for a quick swap in case of failure?
What's your thought?
The boat is a 1998 Cobalt 252 that weighs 4500 lbs dry. Let's say full load and fuel 6,000 lbs.
Main use will be congested inland lake, so not many WOT runs. Mostly cruising and some tubing with the kids.
If I'm easy on the throttle, will a Bravo ! handle it? (already have a Halo max cooler)
https://www.driveshowers.com/
Will an upgraded Bravo I be sufficient? (Already have a Teague billet top cap) Maybe get the steel tower installed.
Will an XR or XZ be much better?
Don't think I'm anywhere close to needing an IMCO
Maybe just keep a spare Bravo I on hand for a quick swap in case of failure?
What's your thought?
09-07-2024, 08:25 PM
#2
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Join Date: Jun 2004
Location: St-Hyacinthe, quebec, canada
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I simply would not hole shot it neither catch air without managing throttle... spare bravo 1 are cheap. BUT !
id dont dont use it with respect, one simple week end could be enough to break it!
id dont dont use it with respect, one simple week end could be enough to break it!
09-07-2024, 08:29 PM
#3
Platinum Member
Platinum Member
Im way more power than you through XR uppers and IMCO bottoms, three yrs no trouble.
Last edited by F-2 Speedy; 09-09-2024 at 08:19 AM.
09-08-2024, 06:01 AM
#4
Registered
Don’t over prop it. That causes too much throttle for planing (and everywhere else in rpm range) which loads drives way too hard. Single engine boats even more susceptible to this since weight changes (people, fuel) can more likely change the need for a prop swap. What planed fine yesterday may not with more people and fuel on board today. This is a real thing.
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JaniH (09-08-2024)
09-08-2024, 11:48 AM
#5
Registered
Don’t over prop it. That causes too much throttle for planing (and everywhere else in rpm range) which loads drives way too hard. Single engine boats even more susceptible to this since weight changes (people, fuel) can more likely change the need for a prop swap. What planed fine yesterday may not with more people and fuel on board today. This is a real thing.
09-08-2024, 10:26 PM
#6
I have an assortment of props already.
Factory 502 (black engine) came with Mirage Plus 23p. Still have this
Have a Mirage plus 25p
Bravo I 24p
Bravo I 26p
Rev 4 22p
4 blades are prob not going to be my friend from what I'm reading.
Factory 502 (black engine) came with Mirage Plus 23p. Still have this
Have a Mirage plus 25p
Bravo I 24p
Bravo I 26p
Rev 4 22p
4 blades are prob not going to be my friend from what I'm reading.
09-09-2024, 10:51 AM
#8
VIP Member
VIP Member
XR will be efficient and fast and handle the power. I crossed 210 hour this weekend and I run my boat very hard. I'm 5500 rpm all the time and always coming out of the water trying to keep up with my friends. I am either idle or full throttle literally. My fluid always looks perfect.
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Formula 353
Merc Racing 540s
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Merc Racing 540s
