Power vs reliability
#32
Platinum Member
Platinum Member
Could you guys add if the motor was home built, local performance shop built, or (brand name, ie teague, mercury, sterling, zul, chief, etc) built? I have allways been curious about this. I have come to the conclusion that either you go mild, or go to a big name shop for performance for reliability. This is why I went with outboards. This thread is changing my mind a bit though.
#33
Registered
97mph+ 2001 Baja 33' Outlaw poker run 750-830hp (previous boat)
Cruise 80-100mph, 4500-5800rpm for 30+ mile spurts every time out, up to 150miles in one day.
Rigged from day one with
500EFI's (factory sealed)
M3SC Prochargers at 8psi
IMCO Extreme SC Drives
Stellings boxes
Upgraded fuel system
etc.
240 trouble free engine hours and counting
Multiple drive rebuilds
I drive fast, hard, however you want to describe it. But there's a difference between Hard and Abusive. Abusing your equipment WILL result in premature failure. Driving a performance machine like its made to be driven is OK in my book. Especially when you properly maintain it. I do try to drive.....smooth though, if that makes any sense.
Looking forward to running Unleashed the same way with the new custom built engines! Attempting to make 1000+ reliable HP. Plan on sharing positive results after running her for a few years.
I don't actually know how much power can be reliable, or what it takes exactly at each level. But enjoy learning every day.
Most would say supercharging stock Mercury engines is NOT reliable. Maybe I was just "Lucky"
Most also say that "if you drive like a grandma" XR drives will live behind power. I was NOT "Lucky" there. My IMCO's had every upgrade possible, amsoil changed every 15hours, and I followed every piece of advice on this site. They still broke/wore out prematurely. The drives lasted longer driving faster, freeing up the hull, getting on plane normal instead of taking 5 times as long to "nurse" it up on plane, etc.
Pretty much seems that everything fast breaks. The larger it is, the faster it goes, and the older it is, the more they break. But they all break and wear out. Might as well enjoy the drive on your way to that next failure! Hopefully the "secret to reliable speed" is revealed in this thread, gold chains and all!
My advice to all friends is buy a less expensive boat then you can afford, at a price below what its worth, so there's room to rebuild and upgrade as needed.
Cruise 80-100mph, 4500-5800rpm for 30+ mile spurts every time out, up to 150miles in one day.
Rigged from day one with
500EFI's (factory sealed)
M3SC Prochargers at 8psi
IMCO Extreme SC Drives
Stellings boxes
Upgraded fuel system
etc.
240 trouble free engine hours and counting
Multiple drive rebuilds
I drive fast, hard, however you want to describe it. But there's a difference between Hard and Abusive. Abusing your equipment WILL result in premature failure. Driving a performance machine like its made to be driven is OK in my book. Especially when you properly maintain it. I do try to drive.....smooth though, if that makes any sense.
Looking forward to running Unleashed the same way with the new custom built engines! Attempting to make 1000+ reliable HP. Plan on sharing positive results after running her for a few years.
I don't actually know how much power can be reliable, or what it takes exactly at each level. But enjoy learning every day.
Most would say supercharging stock Mercury engines is NOT reliable. Maybe I was just "Lucky"
Most also say that "if you drive like a grandma" XR drives will live behind power. I was NOT "Lucky" there. My IMCO's had every upgrade possible, amsoil changed every 15hours, and I followed every piece of advice on this site. They still broke/wore out prematurely. The drives lasted longer driving faster, freeing up the hull, getting on plane normal instead of taking 5 times as long to "nurse" it up on plane, etc.
Pretty much seems that everything fast breaks. The larger it is, the faster it goes, and the older it is, the more they break. But they all break and wear out. Might as well enjoy the drive on your way to that next failure! Hopefully the "secret to reliable speed" is revealed in this thread, gold chains and all!
My advice to all friends is buy a less expensive boat then you can afford, at a price below what its worth, so there's room to rebuild and upgrade as needed.
#34
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Join Date: Sep 2012
Location: New Bern, NC
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Great thread. I was playing with the idea of doing a 496 stroker with a 250 blower trying to get to the 650-700 hp range. I'm now thinking about scrapping the blower motor idea and going with
http://m.ebay.com/itm/351056794293?nav=SEARCH#
Any advice or opinions?
http://m.ebay.com/itm/351056794293?nav=SEARCH#
Any advice or opinions?
#35
well here my thing low hp you can run any parts. but when i went to big hp i try to get info on all the parts that last. now i have 582 dart with 355dart pro 1 heads 675lift cam,crower shaft rockers.dyno 744hp 718tq at 5700rpm . i have bravo one drive 136 gears .so my crusing rpm is 600rpm lower then when i had 150 gears. i run50mph all day long and i am not in the 4barrels. nice speed and easy on the gas.
#36
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well here my thing low hp you can run any parts. but when i went to big hp i try to get info on all the parts that last. now i have 582 dart with 355dart pro 1 heads 675lift cam,crower shaft rockers.dyno 744hp 718tq at 5700rpm . i have bravo one drive 136 gears .so my crusing rpm is 600rpm lower then when i had 150 gears. i run50mph all day long and i am not in the 4barrels. nice speed and easy on the gas.
#37
Registered
Thread Starter
Great thread. I was playing with the idea of doing a 496 stroker with a 250 blower trying to get to the 650-700 hp range. I'm now thinking about scrapping the blower motor idea and going with
http://m.ebay.com/itm/351056794293?nav=SEARCH#
Any advice or opinions?
http://m.ebay.com/itm/351056794293?nav=SEARCH#
Any advice or opinions?
#38
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Join Date: Sep 2012
Location: New Bern, NC
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I agree with you 100%. My thoughts were going to a 572 ci over the blower motor is that the cost is in the same ball park, the 572 wouldn't have to be pushed as hard to produce 650-700hp and would be more forgiven on a fuel issue such as bad fuel or low octane. But I do really like the noise a blower makes.
#39
i have a 1050dom i got from aed. . i wish i got the 572 when i frist started to do my motor. there a guy put a crate572 in a checkmate and his boat ran great. my motor started out as a 540 dart block. i had it made to a 582 and i love it .the boat is really a lot of fun to drive now .you can tell the power from 540 to 582 it made my boat move a lot faster