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Comp jet racing

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Rogers57x

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« on: January 20, 2020, 10:17:15 AM »
Fellow comp jet racers , going to compete at Burley and Parker this year , need some info please I've run my boat pretty hard for the last 10 yrs , on my 5th  motor 2nd pump , but need to set the boat up right , I do not have a turning fin , where do you put it so it
Doesn't interfere with the water flow to the  pump intake,  boat slides a lot  then hops if cranking to hard , i do have cav plates to install but dont want to rob them off my Rogers Dragstar, The boat i have is a Sanger superjet   so using my divereter with a stop is all i got for now going to make more changes with steering and setback seat ,center imco fuel tank and other mods  unless someone has a rogers set up for sale less motor? not a lot of circle racing up here in Washington  just want to be competitive anyone with any info would be awsome!! Thanks
  • Boat #1: 78 sanger superjet
  • Boat #2: Rogers Dragstar 79


bobjthomson

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« Reply #1 on: January 21, 2020, 08:38:31 AM »
I have a turning fin that came off a Rogers . U donít need cave plates on a jet boat as the Diverter will set the boat up , ride plate is a must . Ur gona want to get ur pump set up with the tightest clearance possible and run an inducer as well as this will help keep the pump loaded at all times . Send some pics of the rear of the boat so I can see the chimes on it .


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Rogers57x

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« Reply #2 on: January 21, 2020, 03:20:21 PM »
Thank for your info very much appreciated,  I will get pictures tonight when I get to the shop, I have 2 fins I pulled off a flatbottom  v drive  one is bronze the other aluminum  probably  not something  I should use  as far as the pump it was set up by George at ARS it has a stainless impeller and an inducer, blueprinted bowl , the clean out has been welded longer to take out cavitation  and has a loader scoop for the intake , I do have a droop snoot and a new nozzle with the red insert and a ride plate I made about 24inches long ,I do not have a shoe the sanger came from the factory  with a small plate so I made a longer one , I was doing some bouy to bouy practice at my river I run at the boat seems to slide a lot in the turn when I give it full own it digs and turns but sometimes  hops and I spin out with tons of water in the boat will the fin help with the hop or dig more and flip , also what about an oil cooler drag racing I didn't need one thank you Bob really want to be competitive  but most of all Safe😎
  • Boat #1: 78 sanger superjet
  • Boat #2: Rogers Dragstar 79

bobjthomson

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« Reply #3 on: January 22, 2020, 01:55:39 PM »
Thank for your info very much appreciated,  I will get pictures tonight when I get to the shop, I have 2 fins I pulled off a flatbottom  v drive  one is bronze the other aluminum  probably  not something  I should use  as far as the pump it was set up by George at ARS it has a stainless impeller and an inducer, blueprinted bowl , the clean out has been welded longer to take out cavitation  and has a loader scoop for the intake , I do have a droop snoot and a new nozzle with the red insert and a ride plate I made about 24inches long ,I do not have a shoe the sanger came from the factory  with a small plate so I made a longer one , I was doing some bouy to bouy practice at my river I run at the boat seems to slide a lot in the turn when I give it full own it digs and turns but sometimes  hops and I spin out with tons of water in the boat will the fin help with the hop or dig more and flip , also what about an oil cooler drag racing I didn't need one thank you Bob really want to be competitive  but most of all Safe
I would try putting a rudder on the pump and see if that helps with the turning ??? Easy and cheap lol . The turning fin will help keep the boat stable on the turn as this is what itís for , when the nose of the boat drops the fin will keep it from wondering all circle boats have these . Do u have an inducer ??? As I said before this will help keep the pump loaded at all rev ranges ??? As for the oil cooler itís a must , extra oil . And u can control the temps better . Also do u have a pressure valve to keep ur water pressure steady???


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bobjthomson

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« Reply #4 on: January 22, 2020, 01:55:51 PM »
Ps nice boat


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Rogers57x

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« Reply #5 on: January 23, 2020, 02:29:29 PM »
Thanks for the information really appreciate it,  I did forget to mention  that yes the pump does have a inducer , I was told that I could put a water pressure  gauge on the pump to see what psi , and what type of oil cooler would you recommend  I see a lot of Dan Olsen coolers used , I do not have a pressure  valve for my water , there is a ball valve on the inlet  and out so I can control temp that way  , I do have a old Berkley rudder that attaches to the pump but it's huge looks like a rudder to a battleship I'll trim it to fit it looks like it will hit my ride plate now , do you know how big the race course is at Burley or Parker? 1/2 mile ?  Speeds for comp jet? Just curious 😎thanks
  • Boat #1: 78 sanger superjet
  • Boat #2: Rogers Dragstar 79

Nickel$worth

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« Reply #6 on: January 24, 2020, 08:31:32 PM »
Been around jet boats all my life. George Striegel, was Running was a Honkercraft (splash of Hornet). Mel was running a Roger. Both were were set up for circle boat racing. Both were National Champions. They ended up putting fins under the boat, line flat bottoms still do. Made them track straight, and not slide in the turns. George Striegel is owner of Clay Smith Cam. Her would be a great person to talk too. 714-523-0530


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Rogers57x

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« Reply #7 on: February 04, 2020, 09:07:14 AM »
Appreciate the  advice thank you, will give him a call, got the new motor ready to put in ,working on the installation  of turning fin  and setback  of the seat and other mods  ,can't wait to test😁!!
  • Boat #1: 78 sanger superjet
  • Boat #2: Rogers Dragstar 79

 


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