28 Pantera at Shogren.....
08-14-2007, 01:59 PM
#23
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Location: Manhattan, KS
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08-14-2007, 02:25 PM
#26
JC Performance Engines
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750hp should be mid 80s any day.
So... who has the dyno sheets to prove that's where it is?
Tell them to keep the engine and pay 30.
Then slide a Zul 775na in there for another 30.
So... who has the dyno sheets to prove that's where it is?
Tell them to keep the engine and pay 30.
Then slide a Zul 775na in there for another 30.
08-14-2007, 02:46 PM
#27
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According to the customer we built the boat for with the Chiller the motor was closer to 800 HP.I am sure Gary Grimes the engine builder would remember the "real" HP and more important "torque" with this combination.
I only ran 1 prop for 1 hour and that was a 31 labbed 4 blade Bravo 1 and with a full tank of fuel ( 90 gallons on the race set up ) and my customer and I in very hot and humid conditions in the bay 92 - 93 MPH and I recall the prop was down like 200 - 300 RPM from peak RPM - HP. I think the boat certainly with more time and tweaking could of ran 94-95 MPH before the Chiller was installed.It accelerated very strong !!!
Remember this is a much lighter version than a full pleasure 28' set up and the drive height was higher with the notch transom.
JO
I only ran 1 prop for 1 hour and that was a 31 labbed 4 blade Bravo 1 and with a full tank of fuel ( 90 gallons on the race set up ) and my customer and I in very hot and humid conditions in the bay 92 - 93 MPH and I recall the prop was down like 200 - 300 RPM from peak RPM - HP. I think the boat certainly with more time and tweaking could of ran 94-95 MPH before the Chiller was installed.It accelerated very strong !!!
Remember this is a much lighter version than a full pleasure 28' set up and the drive height was higher with the notch transom.
JO
Last edited by JO - PANTERABOATS; 08-14-2007 at 02:48 PM.
08-14-2007, 02:50 PM
#28
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I was also interested in this boat, but now I'm starting to have second thoughts on it. Been around enough performance vehicles to get a feeling on a engine that was detuned from its original settings. Almost sounds like it was set back so as to protect something or worse case its to hide something already weak from running that hard. Either way it now has me a little worried. . But I would find it hard to believe that someone like Scott would sell something that was not 100%.Why risk the bad press on something at this level when some of his other sales tickets are in the mid to high 6 figure level. Just had to add my opinion on a much talked about subject.
08-14-2007, 02:55 PM
#29
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By the way our black F1-71 race boat with basically the same set up would run back in 2001 - 2002 78-79 MPH on GPS with a stock Mercruiser 500 EFI. With a 525 EFI easily over 80 MPH. Now add a blower motor with an extra 250 - 300 HP and you can see why the low to mid 90s are there with no problem.
If a stock 32 or 34 pitch were run on the boat and the motor is only turning 4800 - 5000 RPM at WOT then you need to put a 30 or 31 labbed 4 blade to get the RPM up in the proper RPM range of 5600-5700 RPM and your speeds and acceleration will increase.
JO
If a stock 32 or 34 pitch were run on the boat and the motor is only turning 4800 - 5000 RPM at WOT then you need to put a 30 or 31 labbed 4 blade to get the RPM up in the proper RPM range of 5600-5700 RPM and your speeds and acceleration will increase.
JO
Last edited by JO - PANTERABOATS; 08-14-2007 at 03:02 PM.
08-14-2007, 03:01 PM
#30
Charter Member # 55
Charter Member
I was also interested in this boat, but now I'm starting to have second thoughts on it. Been around enough performance vehicles to get a feeling on a engine that was detuned from its original settings. Almost sounds like it was set back so as to protect something or worse case its to hide something already weak from running that hard. Either way it now has me a little worried. . But I would find it hard to believe that someone like Scott would sell something that was not 100%.Why risk the bad press on something at this level when some of his other sales tickets are in the mid to high 6 figure level. Just had to add my opinion on a much talked about subject.
Probably detuned it to protect:
1. the outdrive
2. the salesman on the test run
3. the buyer who might kill himself
4. to keep the engine healthy and reliable
