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  • engine differnce

    Hello ,in 1998-1999 the PS 190 had the corvette engine option,in 2000 the same boat had the Indmar 330 horse ,what is the diff between the two blocks and engines.Any help would be appreciated.
    sure I will hear from someone soon and thanks in advance

  • #2
    Originally posted by oldriver
    Hello ,in 1998-1999 the PS 190 had the corvette engine option,in 2000 the same boat had the Indmar 330 horse ,what is the diff between the two blocks and engines.Any help would be appreciated.
    sure I will hear from someone soon and thanks in advance
    The Corvette engine that was used in those boats was the LT1 engine. The LT1 was in production from 1993 model year and pretty much ended after the 1999 model year. It had a cast iron block and aluminum cylinder heads along with a distributorless ignition system. It was a great engine but went out of production at General Motors. The LT1 was replaced with the LTR which had a cast iron block and cast iron cylinder heads. It was pretty much a standard 5.7L (350 cubic inch) engine but it did have the same distributorless ignition that the LT1 had. The LTR was built through from 1999 MY through 2002 MY when it was replaced by the MCX.

    Engine Nut
    Engine Nut
    Indmar Marine Engines
    Power to the Sport

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    • #3
      gee thanks,sounds like either engine would be a great choice however with the LT1 overheating would be bad with the aluminum heads.Guess they both had the same horsepower also?????

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      • #4
        Originally posted by oldriver
        gee thanks,sounds like either engine would be a great choice however with the LT1 overheating would be bad with the aluminum heads.Guess they both had the same horsepower also?????
        Enginenut, please check me on this but I beleive the aluminum head on the LT-1 gives you as much as a 100lb. weight advantage over the LTR. And not that I'm THAT particular about my ski wake, but in theory it would keep the boat from sitting as deep in the water, thus producing less of a wake at slalom speeds.
        You're right about the overheat thrreat in the LT-1 tho. Always keep one eye on the temp gauge...

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        • #5
          Originally posted by oldriver
          gee thanks,sounds like either engine would be a great choice however with the LT1 overheating would be bad with the aluminum heads.Guess they both had the same horsepower also?????
          I don't believe so. If I recall correctly the LTR had 330 hp. The LT-1 in my 30th Anniversary has 350 hp.
          2003 ProStar 197, MCX and Powerslot.

          "When injustice becomes law, resistance becomes duty" - Thomas Jefferson
          "Freedom is beneficial to everyone equally" - Ron Paul
          15%'er

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          • #6
            ride- I don't know if they did it, or not, but moving the motor forward a few inches would accomplish the same thing as lightening the motor.

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            • #7
              Originally posted by captain planet
              I don't believe so. If I recall correctly the LTR had 330 hp. The LT-1 in my 30th Anniversary has 350 hp.
              /edit. It's 340 hp for the LT-1 in 98 according to the WSM Boat Buyer's Guide (for what that's worth).
              Last edited by east tx skier; 10-04-2007, 04:14 PM.
              Previous: 1993 Prostar 205

              Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.

              FAQ


              Be kind. Have fun.

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              • #8
                Originally posted by east tx skier
                /edit. It's 340 hp for the LT-1 in 98 according to the WSM Boat Buyer's Guide (for what that's worth).
                I think your right, but for the Anniversary they tinkered with the engine to get 350hp out of it. A friend of a friend had a 98 Duvall which was 340hp and we were always jawing back and forth about my boat having more horsies than his. One day he even lied about having some engine work done to get 15 more hp out of it just to say he had more power.
                2003 ProStar 197, MCX and Powerslot.

                "When injustice becomes law, resistance becomes duty" - Thomas Jefferson
                "Freedom is beneficial to everyone equally" - Ron Paul
                15%'er

                Comment


                • #9
                  Originally posted by JimN
                  ride- I don't know if they did it, or not, but moving the motor forward a few inches would accomplish the same thing as lightening the motor.
                  Jim-
                  Por que, mi amigo? A guess would be that by moving the weight toward the bow, the boat's planing surface area would be unchanged from that of the LT-1 due to prop shaft angle? Am I anywhere close? Do explain...

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                  • #10
                    Originally posted by captain planet
                    I think your right, but for the Anniversary they tinkered with the engine to get 350hp out of it. A friend of a friend had a 98 Duvall which was 340hp and we were always jawing back and forth about my boat having more horsies than his. One day he even lied about having some engine work done to get 15 more hp out of it just to say he had more power.
                    Well, here's another source.

                    Looks like the manual for 98 says 328 hp (which may explain my 318 hp guess better). Of course, it also says the TBI MX engine is only 298 hp. I'm nearly positive that it's 308 hp (which is also what the WSM review says). Either way, I'm going to go with my gut and speculate that they didn't give you 10 extra horsies on the anniversary ed pro star. But whatever puts a smile on your face.

                    Actually, in the reviews for 1993, they had separate reviews for the 190 ltd. and the S&S 190 in addition to the stock 190. Different engine/tranny combos, etc. The S&S got a more favorable wake review than the 190 Ltd. and the Stock. Must have been the stars.
                    Attached Files
                    Last edited by east tx skier; 10-04-2007, 05:46 PM.
                    Previous: 1993 Prostar 205

                    Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.

                    FAQ


                    Be kind. Have fun.

                    Comment


                    • #11
                      Originally posted by east tx skier
                      Well, here's another source.

                      Looks like the manual for 98 says 328 hp (which may explain my 318 hp guess better). Of course, it also says the TBI MX engine is only 298 hp. I'm nearly positive that it's 308 hp (which is also what the WSM review says). Either way, I'm going to go with my gut and speculate that they didn't give you 10 extra horsies on the anniversary ed pro star. But whatever puts a smile on your face.

                      Actually, in the reviews for 1993, they had separate reviews for the 190 ltd. and the S&S 190 in addition to the stock 190. Different engine/tranny combos, etc. The S&S got a more favorable wake review than the 190 Ltd. and the Stock. Must have been the stars.
                      My chart shows the standard LT1 at 340 HP and the anniversary edition at 350. The anniversary edition had a different cam and lifters which gave it a little more boost.

                      Engine Nut
                      Engine Nut
                      Indmar Marine Engines
                      Power to the Sport

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                      • #12
                        Originally posted by Engine Nut
                        My chart shows the standard LT1 at 340 HP and the anniversary edition at 350. The anniversary edition had a different cam and lifters which gave it a little more boost.

                        Engine Nut

                        EN,

                        Thanks for the info, I have been led to believe only the blue engines were the 350 hp and the black engines were 340 hp

                        any truth to that?

                        thanks for your input

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                        • #13
                          Originally posted by Engine Nut
                          My chart shows the standard LT1 at 340 HP and the anniversary edition at 350. The anniversary edition had a different cam and lifters which gave it a little more boost.

                          Engine Nut

                          Well shut my mouth. How 'bout that.
                          Previous: 1993 Prostar 205

                          Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.

                          FAQ


                          Be kind. Have fun.

                          Comment


                          • #14
                            Originally posted by Farmer Ted
                            EN,

                            Thanks for the info, I have been led to believe only the blue engines were the 350 hp and the black engines were 340 hp

                            any truth to that?

                            thanks for your input
                            You are correct. The higher output anniversary edition engines were blue.

                            Engine Nut
                            Engine Nut
                            Indmar Marine Engines
                            Power to the Sport

                            Comment


                            • #15
                              Originally posted by Engine Nut
                              You are correct. The higher output anniversary edition engines were blue.

                              Engine Nut

                              Thank you sir!

                              Could you recommend a paint/color to touch up some areas on a blue one?

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