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WakeWorld Discussion Board » >> Boats, Accessories & Tow Vehicles Archive » Archive through April 01, 2004 » '04 X-Star, and Indmar 8.1L Questions « Previous Next »
By Matt Anderson (xaggie) on Wednesday, February 18, 2004 - 3:13 pm:    Edit Post Delete Post
So we ordered a new '04 X-Star at the Houston boat show and before the boat is actually built I need to know what speaker size is used. The MC people swear to me that the speakers used are 5 1/4 inch instead of the 6 1/2 inch seeh here http://www.clarion.com./usa/product/index.php?mod=details&category=marine&product=CM1632-RET Also we ordered the boat with the LQ9 6.0L and are very happy with this engine in our X-30. My question is to those of you with the 8.1L how do you like it? How much Gas do you typically burn vs. a small block? How does it perform at high speed and wake speed. Finally could some one tell me the option price of this eng. against the already pricey LQ9. Thanks, Matt
By summerholic (stereor102) on Wednesday, February 18, 2004 - 5:53 pm:    Edit Post Delete Post
it is a six comp. For the 8.1 if you want to load your boat down and be able to get out of the hole fast that is the one you want.
By Jay Preston (redram9873) on Wednesday, February 18, 2004 - 5:56 pm:    Edit Post Delete Post
The speaker size is 6 1/2 inch, I ordered an 04 X-Star at the Detroit show and upgraded to the Polk Momo in the entire boat, it sounds alot better but it does cost. The option for the engine upgrade is around $6500 if I remember right. Congrats on the new boat you will love it, I had an '03.
By Jay Preston (redram9873) on Wednesday, February 18, 2004 - 6:02 pm:    Edit Post Delete Post
As far as the 8.1 goes the factory rep from Indmar said that the MCX is actually the same if not faster out of the hole, even weighted. Only a few of the pro use the 8.1 and the MCX is alot better on gas.
By cdm (cdm) on Wednesday, February 18, 2004 - 6:38 pm:    Edit Post Delete Post
Thats what I hear as well. I have the MCX, as advised by my dealer, weight it down (2800lbs ballast) and am very satisfied with its performance.. I did change to an ACME 13.5 * 16 4 blade prop.. Overall, with the 04's increase in both hp and torque you cannot go wrong with the MCX and save $6500.00. Enjoy.. Oh I think the engine upgrade to the LQ-9 is $6500 and the L-18 is more... I forgot.. I want to say 8900-10000.. Don't quote me on this..
By Matt Anderson (xaggie) on Wednesday, February 18, 2004 - 7:04 pm:    Edit Post Delete Post
Thanks for the replies so far. Jay that is exactly why I was asking. They are telling me that those speakers are not compatable with the openings that they have in the boat, as well as telling me that the speakers are in fact 5 1/4 components not 6 1/2. Also we have already paid for the LQ9 6.0L and were wondering how much more it would be to go with the L18 8.1L. Keep the replies coming and thanks. Matt
By summerholic (stereor102) on Wednesday, February 18, 2004 - 8:27 pm:    Edit Post Delete Post
is your boat in production because i know you cant change anything two weeks before it is built. If your looking at spkr. upgrades the momo sound great.
By mark (mhsb1029) on Wednesday, February 18, 2004 - 11:27 pm:    Edit Post Delete Post
The L18 is a little under 3k more than the LQ9. If your going to go big, why not go the whole way and put the L18 in?
By travis moye (driving) on Thursday, February 19, 2004 - 4:23 am:    Edit Post Delete Post
i would go with the lq9. i love that engine. i would spend a little on a new prop, 14x16, instead of the engine. it will handle as much weight as you are gonna need.

By Zedz Dead (ktm250) on Thursday, February 19, 2004 - 6:11 am:    Edit Post Delete Post
Go with the L18...the LQ9 does no better out of the hole than the MCX using standard props. Email Indmar and ask to look at the torque numbers. The LQ9 is soft on the bottom that is why everyone is changing to the 14x16...the L18 needs no help.

Look at it like this TQxRPM/5252=HP or HPx5252/RPM=TQ...TQ is the number you need to know. L18 is rated @ 450hp, LQ9 @ 385 and MCX @ 350 using a 4000RPM as the HP peak here are the results. L18=590 ft/lbs, LQ9=505 ft lbs and the MCX 459 ft/lbs. Don’t take these as gospel because we don’t know the exact RPM of the HP peak; however, they are representative of the differences.

Remember there is no substitute for cubic inches! Also LQ9 with a 14x16 prop is turning 3800 to 4000RPM pulling a pro rider 23.7 MPH with full stock ballast plus an additional 1500 lbs. Just so you know the rev limiter cuts in at 5200 rpm.

Speakers are 6.5”…Throw them out and install some JL Audio VR or XR series and you’ll never look back.

Hope this helps…oh and cost difference between LQ9 and L18 at MSRP is $2636.

Good luck and enjoy!

By John Nicolette (wake_up) on Thursday, February 19, 2004 - 8:07 am:    Edit Post Delete Post
how much more did you pay for the Polk Momo upgrade?

By Jay Preston (redram9873) on Thursday, February 19, 2004 - 7:52 pm:    Edit Post Delete Post
The upgrade was around $325 a pair for the upgrade.
By barefooter (prostar205v) on Friday, February 20, 2004 - 5:38 am:    Edit Post Delete Post
Wow, 3800 to 4000 Rpm for 24 MPH. I did not realize the weight was putting that much load on the engine. In a 197 with LQ9 empty 3800-4000 will put you over 36 (if my speedo's are correct).
By Zedz Dead (ktm250) on Friday, February 20, 2004 - 8:40 am:    Edit Post Delete Post

You are right...good old #11 will be turning around 3800rpm in the course pulling a skier 36mph if you are using the 14x20 that came on the boat. If it has the "jump" 14x18 it will around 4000 and pulling like a Brahma bull!

Remember the X-Star has a beam that is 9" wider than your 197 and a dry weight that is more than 1450 lbs heavier!

By summerholic (stereor102) on Friday, February 20, 2004 - 10:53 am:    Edit Post Delete Post
have you checked at any stereo stores for the price of those spkr. i saw them at a store for 199.95. Mastercraft must have good mark up.
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