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Thread: 2016 fx svho

  1. #91

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    Do you have a way to data log the run?

    Robert

  2. #92
    Quote Originally Posted by rcrisafulli View Post
    Do you have a way to data log the run?

    Robert
    i wish but no...sometimes I put a afr on. I borrow from a buddy. the 1st run with a stage 2 tune very lean, I got a stage 3tune from jesus which got the afr to 11.8-12 I know its going to be to rich once summer heat gets here so i'll have him map a summer tune. im going to put a permanent afr gauge on soon.
    Last edited by yellow jacket; 05-22-2019 at 11:50 AM.

  3. #93
    not so good today...got to the river and fouled #2 plug so I had to drive back home and get another set and put them in...that killed 1.5 hrs...the air tempts were up to 89* by 8 pm it was 84* and humid. water is still cool...so I finally got the ski out for a run and not so good. I didn't like the riva backing plate raised...ski felt like driving on ice with bald tires r's still down 8700-8800r's full tank of gas and 84 mph something so I put it back on the trailer...I think summer is here and the afr's are going rich...time to check that again I need to get that permanent gauge. so im going to take 2mm out of the prop next week and put the riva sponsons back to where I had them tomorrow. I'll leave the 2* wedge on the ski for the weekend.
    Last edited by yellow jacket; 05-23-2019 at 09:43 PM.

  4. #94

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    After you put the AFR gauge on see if you can position a camera to record it. I did this once with a borrowed go pro. You really need AFR and rpm together to tune.

    Robert

  5. #95
    Quote Originally Posted by rcrisafulli View Post
    After you put the AFR gauge on see if you can position a camera to record it. I did this once with a borrowed go pro. You really need AFR and rpm together to tune.

    Robert
    I agree...I have a old go pro...guess I need to dig it out.
    Last edited by yellow jacket; 05-24-2019 at 08:39 PM.

  6. #96
    went to the lake last weekend and the water was ruff, holiday weekend... I still had the wedge in and it did make the ski ride easier but it didn't hook up as well in the chop, long story short...the wedge might come out for lake riding...now on the other hand, we went to the river today. I wanted some data to go by so I could pitch my prop tonight...the wedge did get the bow up and the rear stayed planted in the water, didn't hunt around like it did before...now I only hit 85.44, 85.35 and a 85.24 on 2 bars of fuel but my r's are only 8820, 8780 and 8780 rpm about 300 r's off from cooler weather...temp 81*, water cool, not to humid...we took 2 mm out of the 13/20 tonight so my r's should be around 9,000 tomorrow...the prop was way out, now every thing is even, so I should be faster tomorrow back in the 86's for summer and a few hundred of r's left in her for cooler weather. I might try the luck 13 again after this...

  7. #97
    made some runs today r's did pick up 200 rpm's 8980-9020 r's...at 1st my mph only went up about 0.26 mph. it felt like something just holding the ski back...I usually run trim at 2 bars above neutral, with that it ran 85.6-85.7 mph most of the day...towards the end of the day with the trim all the way up and adding 5 gal of fuel she started braking the 86 mark with a best of 86.23 mph, air 81*, humidity up from yesterday and water temp about the same, rain started to come in so that was the end of that...so there are 2 things to try lift the riva sponsons one hole with the backing plate in the same spot if that don't work put the stock sponsons back on and adjust the trim so it'll go higher. but all in all...im please with the 86.23 mph today...with the warmer air

  8. #98
    outnumbered's Avatar
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    Aren't you also dealing with high altitude?

  9. #99
    Quote Originally Posted by outnumbered View Post
    Aren't you also dealing with high altitude?
    the town next to the river is 564'. the river is 438' at the boat landing. i usually do speed runs there because is smother than the lake and closer. at the lake its 297'. i think more speed is there. it'll never hit 89 but I think 87 something can be reached...just need to keep tunning.

  10. #100
    outnumbered's Avatar
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    Oh, for some reason I was thinking you were much higher than that. Still great speed nonetheless.


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