Harris Marine Forum - Show Us Your Project

LSA Supercharged for Jet sprint boat

(15 posts) (2724 views)
  1. dhs_42
    dhs_42

    Member
    Joined: Nov '09
    Posts: 12

    Currently Offline

    Getting the LSA ready for the dyno on Thursday. Clip in the boat getting her running. Clip in the Frame - ready for the dyno. Dyno footage to follow
    http://www.youtube.com/watch?v=g-rG6CeJe6Q

    http://youtu.be/OWaIr5N4ltw

    Posted 3 years ago    #                  
  2. User has not uploaded an avatar
    Shayne

    Member
    Joined: Oct '12
    Posts: 48

    Currently Offline

    Dhs can I swap you a reliable 4.3 chev for the LSA? Seriously its looking very nice. Is it a genuine LSA or a Mike special supercharged ls? What did the dyno say? Is this a superboat or one of the other classes as the standard lsa has around 550hp doesn't it?
    Cheers
    Shayne

    Posted 3 years ago    #                  
  3. vyrusc3
    vyrusc3

    Member
    Joined: Aug '08
    Posts: 36

    Currently Offline

    my guess 732hp at 10 psi? looks good why no intercooler?

    Posted 3 years ago    #                  
  4. Mike
    Mike

    Moderator
    Joined: Jul '08
    Posts: 1,918

    Currently Offline

    The motor has been set up with the supercharger by dhs and is custom built to run methanol as it will run in super boat, The set up is a credit to dhs, it has 210lb Bosch injectors and is running on the LS1 computer. :big_smile:

    Posted 3 years ago    #                  
  5. Mike
    Mike

    Moderator
    Joined: Jul '08
    Posts: 1,918

    Currently Offline

    No intercooler yet but may be added :big_smile:

    Posted 3 years ago    #                  
  6. User has not uploaded an avatar
    Shayne

    Member
    Joined: Oct '12
    Posts: 48

    Currently Offline

    Excellent work DHS. Looking fwd to the test ride video!

    Posted 3 years ago    #                  
  7. dhs_42
    dhs_42

    Member
    Joined: Nov '09
    Posts: 12

    Currently Offline

    Its pretty close to an lsa. LS9 dry sump, forged psitons, different heads, cam, exhaust valves, oil pump, arp bolts, etc etc. Dyno on Friday - so will know what we can get then. Superboat class. Yep - standard LSA 550. Hoping to get away without the intercooler for weight reasons. We'll see how that goes...

    Posted 3 years ago    #                  
  8. Mike
    Mike

    Moderator
    Joined: Jul '08
    Posts: 1,918

    Currently Offline

    Spent most of the day on the Dyno with allot of success, intercooler not required due to the methanol keeping the EGTs we'll under control, we started with 6lb of boost and made 700hp then went to 12lb of boost and made 866hp and 760ftlb of torque, we went to 15lb of boost to get 950 hp and 800 ftlb of torque all with the exhaust temps at around 620 deg c, we will play with the tune in the boat and get a bit more :exciting: The motor sounds awesome :haha:

    Posted 3 years ago    #                  
  9. Mike
    Mike

    Moderator
    Joined: Jul '08
    Posts: 1,918

    Currently Offline

    dhs has the Dyno sheets and some vid :big_smile:

    Posted 3 years ago    #                  
  10. User has not uploaded an avatar
    Shayne

    Member
    Joined: Oct '12
    Posts: 48

    Currently Offline

    With that sort of tq you should be able to run 45 deg impellors lol :haha:

    Posted 3 years ago    #                  
  11. dhs_42
    dhs_42

    Member
    Joined: Nov '09
    Posts: 12

    Currently Offline

    Yeah, really awesome result. Big thanks to Mike & the NZ EFI chaps. Will put the vid & Dyno sheets up when I get Home. Probably Sunday.

    Posted 3 years ago    #                  
  12. dhs_42
    dhs_42

    Member
    Joined: Nov '09
    Posts: 12

    Currently Offline

    Dyno results below. These are the 2 larger pullies. Doesn't include the Pulley we used when the dyno torque maxed out - the computer didn't save these result (I'll put vid up as well)

    Attachments

    1. LSA_Dynos_PSI_1.jpg (68 KB, 0 downloads) 3 years old
    2. LSA_Dynos_1.jpg (71.3 KB, 0 downloads) 3 years old
    Posted 3 years ago    #                  
  13. dhs_42
    dhs_42

    Member
    Joined: Nov '09
    Posts: 12

    Currently Offline

    Dyno Vid's
    http://www.youtube.com/watch?v=ogQ7-yIN3bY

    Posted 3 years ago    #                  
  14. Mike
    Mike

    Moderator
    Joined: Jul '08
    Posts: 1,918

    Currently Offline

    If we had time we could have changed the diff head and gone for over 1000hp :grimace: :horror:

    Posted 3 years ago    #                  
  15. User has not uploaded an avatar
    Shayne

    Member
    Joined: Oct '12
    Posts: 48

    Currently Offline

    Impressiiiiiive!!!!! How many engines have they had on the dyno that have maxed it out?

    Posted 3 years ago    #                  

RSS feed for this topic

Reply

You must log in to post.

Home         About        Products        News        Web Board        Boats        Contact