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View Full Version : 2001 8.1L Xstar


JRW160
02-25-2012, 10:35 PM
Anyone ever seen one or know how many were made? From what I've read this was the only year the 8.1L was available in the 205v hull.

willyt
02-25-2012, 11:51 PM
Uhhh I don't think there's any way that engine is fitting in that engine compartment. A better question would be WHHYYY!?!?!? My MCX blasts out of the hole with 2700lbs and 11 people... I feel like I could put enough weight to sink the boat and it would still get on plane

Jerseydave
02-26-2012, 12:01 AM
I guess it's possible...I've seen an X9 with the 8.1 liter and there may have been some 197's with the 8.1 as well.

JRW160
02-26-2012, 05:30 PM
This seems to confirm that it was at least available. Surely there are a few around.
http://web.archive.org/web/200012111428/http://www.mastercraft.com/showroom/2001/xseries/xstar_features.html

willyt
02-27-2012, 10:11 AM
I stand corrected. I also had no idea indmar offered the actual northstar engine...

450 hp in a 205v I would have to imagine hitting 50 +

Jeff d
02-27-2012, 10:49 AM
Around the same time Nautique offered a 210 SAN with the 8.1L too. I've seen a couple of used ones for sale over the last couple of years but never a 205v hull X-Star.

JRW160
02-29-2012, 02:38 PM
I have seen a few SAN's with the python up for sale. I think correct craft offered it from 1999-2003.

rkhodges21
02-29-2012, 03:08 PM
Oh man that would be a fun boat to own.

wakescene
03-01-2012, 06:32 AM
A friend of mine had a Yellow 2001 Nauti with the 502 Big block in it. That WAS a fun boat! One day we loaded her up with about 4000lbs and went out. It didn't even flinch at the weight. The platform was about 8inches under, and the nose was about 8inches above the waterline...but man the wake was unreal! literally like hitting a brick wall!
He sold it a few years later and there is a picture with the next owner and about 6000lbs in it. They loaded it up so much, they couldn't turn it, but it still got on plane with no problem. (not that it was safe, it was just to see what would happen apperently)
My friend use to also race another friend's PWC. Out of the hole unloaded and up to about 40mph, that Nauti was faster then a top-end PWC of the time. There was very little that could catch it up to about 45mph. BIG torque and fat prop were all that was needed. It also was very good on gas. It didn't need more than about 1800-2200rpm to run wakeboard speeds.

rkhodges21
03-01-2012, 08:55 AM
Conventional wisdom would say that the bigger the engine, the more fuel it will consume, and I am sure that's true if you mean running both wide open, but I have had several people tell me that the 8.1s were just as good on gas as an MCX because they delivered more power at lower rpm so it wound up being just as efficient as the smaller engines. Also from an engineering perspective, there is a certain power that is required to do a task, and it doesn't matter which engine you use just as long as it can produce that power. Where the difference comes in is the efficiencies of the power plants, and that is what the bigger engine has in its favor is that at lower rpm, it has the efficiency to produce the same power as the smaller engine at higher rpm. That's why I would really like to have the biggest engine available in my boat.

TRBenj
03-01-2012, 09:58 AM
Fuel economy isnt totally dependent on horsepower- the size of the motor (cubic inches) and the speed at which its running (rpm) are bigger factors. Lots of other variables though. Yes, a larger engine can be fairly easy on fuel IF youre running it at a lower rpm... but remember that you need to use a bigger prop (relative to a small block) in order to see the gains in economy. Thats less likely to happen if youre propping down in order to accommodate a lot of extra ballast.

Ive driven a Python Powered SAN, and while it was a VERY cool and unique boat, quick is not a word I would use to describe it. Im a direct drive guy though. The size and weight (especially a v-drive) made it feel much more sluggish than even a stock small block powered 19' ski boat. I would not be surprised with a top speed that could top 50 in that hull though, if propped appropriately.

The 8.2L (502ci, 430hp) Python was offered from '98-00, I believe, and the 8.1L (496ci, 425hp) was offered in '01-02. I might be slightly off on those years, but thats pretty close!

DooSPX
03-01-2012, 10:19 AM
Jerseydave I guess it's possible...I've seen an X9 with the 8.1 liter and there may have been some 197's with the 8.1 as well.

Dave, they actually offered it in 190's and 197's... mostly used in tournaments as jump boats... a few years back, Jim sold a red/white/blue 190 with the 8.1 :D

rkhodges21
03-01-2012, 01:25 PM
I know that as of 2011 that skiers choice only offered up to a 6.0 in their boats, but they kept a few 8.1s to use in their tournament boats because they didn't want to take a chance on their boat appearing to struggle under the ballast that some riders want to use.