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  #41  
Old 03-22-2013, 04:44 PM
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dihrdskir dihrdskir is offline
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Quote:
Originally Posted by kyfooter View Post
PT 1999 ProStar - I had a 197 with the 5.7 engine with a power slot, and mine maxed out at about 43.5 MPH. Add a footer in tow and it might lose 1-2. Yes, the tower will help with the upward pull...but a Skylon for $300 works just as well if you don't want to add $2-4k to your cost.

I found that rather than trying to find the one boat that does it all (which doesn't exist), it was easier to be happy with my 197 as a ski boat, and I bought an outboard Barefoot Sanger to foot behind. Speed is no longer an issue (60 mph) and the wake is phenominal. You can often find a handful of Outboard Sangers, FlightCrafts, and Barefoot 200s for sale throughout the year. The challenge is all will be old, so you may have to live with less then perfection, or take your time looking. I spent 3 years looking before I found one that the wife really liked.
Agreed. I did much the same. The 197 is the best all rounder out there but in my case it is no contest when it comes to footing. 11 TT for everything and 88 18 XLT for fun. Here's a pic of the flighty.
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  #42  
Old 03-22-2013, 06:11 PM
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Originally Posted by east tx skier View Post
Interesting. In the somewhat distant past, PCM has been known to understate hp, but not by much.

The 308 hp on the MCX is right in line with what I was told by another MC dealer about 5 or 6 years ago.
Haven't read the whole thread, but same thing I heard over the years. HP aside, the mcx works great for my use. Plus torque plays a big part. The mcx got me up much quicker than the LY-6 which of course has 50 more HP by rating.
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  #43  
Old 03-26-2013, 09:43 AM
TRBenj TRBenj is offline
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Originally Posted by gchapman-tt View Post
That is about right. My 2012 6.0L ran 48.4 @5100 WOT. 36 mph/3570rpm.
2012 = Ilmore?

PT, this is what you want to know, right? Dont be surprised if you cant quite reach those numbers on Tyler, it tends to run a little slower than other locations.

5100rpm sure seems low for a 6.0L though... which prop is that? Im guessing larger than the 13x14.5. The PCM 6.0L's benefit from running 5400-5600 up top. They like to breathe! Holeshot vs. the 350 based motors is definitely not any better, and some people say the 6.0L is a little slower to 30mph, which would not surprise me either. The LS motors make their hp higher in the rpm band.
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  #44  
Old 03-26-2013, 10:09 AM
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The LS motors have 15 degree or better intake valves compared to the small blocks 23 you definately can tell the difference off idle between the old and new engines
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  #45  
Old 03-26-2013, 11:49 AM
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Quote:
Originally Posted by JohnE View Post
Haven't read the whole thread, but same thing I heard over the years. HP aside, the mcx works great for my use. Plus torque plays a big part. The mcx got me up much quicker than the LY-6 which of course has 50 more HP by rating.
The old TBI Vortec motors were torquey little beasts. My GT-40 is no slouch in that department. Gear reduction certainly helps.
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  #46  
Old 03-26-2013, 07:04 PM
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Quote:
Originally Posted by TRBenj View Post
2012 = Ilmore?

PT, this is what you want to know, right? Dont be surprised if you cant quite reach those numbers on Tyler, it tends to run a little slower than other locations.

5100rpm sure seems low for a 6.0L though... which prop is that? Im guessing larger than the 13x14.5. The PCM 6.0L's benefit from running 5400-5600 up top. They like to breathe! Holeshot vs. the 350 based motors is definitely not any better, and some people say the 6.0L is a little slower to 30mph, which would not surprise me either. The LS motors make their hp higher in the rpm band.
Yes Ilmor with 13 x 14.5 Different story with the 13 x 12 3- blade.
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  #47  
Old 03-27-2013, 09:15 AM
TRBenj TRBenj is offline
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Quote:
Originally Posted by gchapman-tt View Post
Yes Ilmor with 13 x 14.5 Different story with the 13 x 12 3- blade.
Wait, so youre saying that the 6.0L can only pull the 13x14.5 5100rpm? That is acting like a much bigger prop than I would have expected. What kind of RPM do you get with the 13x12 and how fast does it run? One would think that you would gain both holeshot and top end speed by propping the engine to turn closer to 5500 at WOT.
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  #48  
Old 03-27-2013, 10:16 AM
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These new tests really level the playing field. No more overstating what is really there or not there. Doug..with all due respect. Your boat does exacly what you want it to do. Just like me you have approx a 20 year old boat and motor and it does everything you want it to and more.

We are talking about todays standards...not yesterday. PCM exagerates there HP rating. They are the only ones that still do that. With the chart it really shows who is playing by the NEW equal rules. No more 10% over or under...it is what it is!. Until recently ILMOR would not talk HP. They wanted to only be compared in the TORQUE department. Well now everyone can see for themselves what is real and what is fake. I am all for it. Your GT-40 is a great motor. My LT-1 SLOT is a great motor. The problem is the cannot push todays boats and what are required of them. We own smaller faster ski boats than what are available today in ref to the new market!
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  #49  
Old 03-27-2013, 10:28 AM
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Quote:
Originally Posted by Jim@BAWS View Post
These new tests really level the playing field. No more overstating what is really there or not there....
We are talking about todays standards...not yesterday. PCM exagerates there HP rating. They are the only ones that still do that...
huh? according to the CARB testing, indmar does too. and what new charts? the carb charts?
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  #50  
Old 03-27-2013, 10:56 AM
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Quote:
Originally Posted by willyt View Post
huh? according to the CARB testing, indmar does too. and what new charts? the carb charts?
I do not believe that Indmar does anymore... they may call it a Monsoon 350 but nowhere can I find any reference to HP. The boat mfg's may still make the claim themselves but don't think Indmar is.
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