Tim G.

Here we go... How long will this thread go back and forth???

So, If I buy your boat... will you give me a money back guarantee that the boat will allow me to go out and smoke Bruce???

Fresh engine?
Did you post in the classifieds?
I'd like to see better pics....even though I can't buy right now... Maybe in 6 months, but not right now..

105mph_38_2003

No cabin I presume?

IRONMAN

I thought that P5 was capped at 70. Wouldn't 575 or 600hp make it a P4 ride? Nice Boat, If I only had another 10K lying around.......

BRUCE SEROFF

Yes, P-5 was capped out at 70mph. But we rarely saw that in the ocean with 4 to 6 footers. And actually, Max speed is suppose to be in ideal water conditions, not the ocean. If we all followed that rule, there would be no controversy in the racers forum. Unfortunately , everyone sets their boats up to run around 5mph faster than the class max. And the true 70 mph boats are at a severe disadvantage.

575 or 600 would not make it a P-4, because they run around 75 in good water conditions. The advantage to a bigger cube motor in big water is acceleration out of the turns or off a launch. a 28 Pantera cant keep up with a 38 scarab in P-4 in Big water.

105mph_38_2003

SO what you're saying is 600 hp from a 540cid is more powerful than 600 hp from a 510cid?

I always just assumed power was power, but then again I know nothing about motors....

BRUCE SEROFF

Absolutely... no replacement for displacement. Im sure youve heard that. A 540 has much more torque and will out accelerate a 510. They may see the same top speed, but the 540 will get there faster.And the 540 will see 600hp at lower rpms

MIAMIBOYZ

Listen to Bruce he has got everything covered...........

Jmemoli

iTrader: (1)

Impressive Bruce !

Yes , the 540 CI motor makes a ton of torque - torque = acceleration .
My 540 CI motor I built made 575 hp @5200 RPM with a torque peak at 3800 RPM .
This allowed us to turn a big prop for gobs of midrange acceleration. top speed was around 73-75 mph . The motor could have been tuned for more hp easily and more top speed , but at the expense of midrange acceleration . HP = speed
Without going to higher compression , higher hp is at the expense low speed torque .
The Pantera 28 is a great rough water boat , but needs tons of torque to push it .
We could have tuned it to run in P4 , but when running against twin engine boats , it would be hard to be competitive . This boat will run near 80 mph with 630 hp , but acceleration out of the turns will suffer .

Tim G, give me your email address and I will forward pictures .
This boat has a full cabin upfront with locker .

BRUCE SEROFF

Thank you

105mph_38_2003

Well I learned something new today,thanks guys