Blower Power

[HPBoats83]

What would your best guestimate be on this? If I have a 540 putting out about 500hp right now and I added a 6:71 blower how much more power do you think I would pick up? What if I added an 8:71? At what point do you start to loose reliability when you add a blower to the motor?

[pw_Tony]

Try asking that in Gear heads, and be ready for alot more specs on this motor

[Wet Dream]

20#s

[boatnam2]

What compression is the motor?that will make a big difference in what you do.I would say a 540 running 5#'s is pretty reliable if you have the hard parts in the motor should be good for around 750hp or.Hope you have a built drive that will break next.

[superdave013]

At what point do you start to loose reliability when you add a blower to the motor?
as soon as you tighten down the last bolt if you plan on doing that to an engine that was not built with a blower in mind.

[RP2]

What would your best guestimate be on this? If I have a 540 putting out about 500hp right now and I added a 6:71 blower how much more power do you think I would pick up? What if I added an 8:71? At what point do you start to loose reliability when you add a blower to the motor?
I hope your not planning on puting it in that Hawaiian... it would be a very dangerous situation.

[LGCDEVIL]

I hope your not planning on puting it in that Hawaiian... it would be a very dangerous situation.
Please elaborate.

[HDF WATERDOG]

Simple answer is the minute you bolt it on. It'll look pretty though.

[Jbb]

The engine pictured below, was a bone stock, Marine Power 502 Premium....I upgraded the fuel system, with a Mallory 140 pump and bigger lines......Upgraded the ignition to an MSD 6al, and 85551 Dist....I upgraded the valvetrain, with screw in studs and roller rockers..Inconel exhaust valves..and a new valve job...added a Blower Shop 8-71 @7 lbs boost with 2 AED 850 carbs...Upgraded the credit limit on my gas card....ran 93 octane fuel......and ran the shit out of it, without the first problem, for 120 hrs.....at which point I sold it...Nothing like the look, sound, and performance of a supercharger..
http://www.***boat.com/forums/attach...1&d=1197158991

[RP2]

Please elaborate.
That boat has a very narrow (85") beam and can not handle speeds over 70mph. Also, the layup and thickness of the hull is inferior to industry standards which can only lead to tragic events when to much power is applied.