jetski9010
Team RTYD
- Location
- Lancaster PA
good keep us updated
GROUP K 845cc SuperJet Freestyle Tech Info
- Thread starter SUPERJET-113
- Start date
Polish jet pilot
4aces4aces4aces4aces4aces
- Location
- Warsaw, Poland
cool!
Polish jet pilot
4aces4aces4aces4aces4aces
- Location
- Warsaw, Poland
bike? Wrong forum buddy 
onesojourner
I use a thumb throttle.
- Location
- springfield, mo
this is really funny, 4 long pages of posts and one guy has one and he can't even compare it to something.
Shifty
- SuperJet Thursday -
- Location
- Austin Texas - Lake LBJ
My friend who has recently passed has one sitting at GroupK. It is ready to go, I just need to pay off the small balance & shipping and will be building the motor for his "tribute ski". I would do it now but I am way to busy at the moment. I will do it over the winter though.
I would really like to know how it runs though,
I would really like to know how it runs though,
- Location
- Brigantine, NJ
It's like the Bigfoot of engines......
Shifty
- SuperJet Thursday -
- Location
- Austin Texas - Lake LBJ
This package, minus the half girdle kit, wrist pins/bearings, intake seals and crank seals. Is arriving today. As mentioned earlier it won't be running until later this year depending on what other vital parts I can find in his storage.
Etheraldreamer
Be there and be square.
- Location
- Spring Hill, FL
posts like this always make me wonder about people...not ONLY is it a completely wrong forum, but its in a random thread about a specific motor. It's like WTF?! you would have to try really hard to be more random.
skinnyman
YOU CANT RENT MY SKI
- Location
- Dallas/ToyBox
Dog
Polish jet pilot
4aces4aces4aces4aces4aces
- Location
- Warsaw, Poland
Shifty, once you get those parts - take a few pics for us! I wan tot seee craftsmanship..thank you!
- Location
- south carolina
i've got one in my blaster that i've been riding for months. i've also got a 5 mil stroker being built for my superjet. so before long i'll be able to compare the two.
ATS_Aaron
X-
- Location
- Shady Shores, TX
Sounds like it's a dog.
1. It uses a repitched 13/17 because the out of the box 13/17 is too steep? WTF My Lamey will sit still and go almost no where with a 13/17. It is ripping a 15/19 completely free. The latest big bore Team Scream stock stroke cylinders are ripping the smaller Hooker impellers free.
2. bored 38mm carbs? Really? That's it? 44's can be used but they use more fuel? If jetted right the ONLY reason 44mm carbs would use more fuel is because it was allowing the engine to ingest more air. Air = HP. That is engine building 101 stuff.
3. The Team Scream BILLET 845cc POWER VALVE Engine with head is $2900. The GroupK modified stock stuff is $1800 + $370 in cores + $170 for a Girdle kit + $190 for a modification to the Factory pipe B-pipe (that I am not 100% sure is necessary).
4. $500 for a set of pistons and rings and head gasket when it needs a rebuild? $179 PER piston + $31 per set of rings + $79 for 1 head gasket. Seriously? I think I understand his hatred of O-rings....you can't change $80 for a replacement o-ring.
5. Back to this exhaust manifold modification. I used a 760 cylinder on my first big bore stroker. In order to use my 650 style FPP manifold I threaded some helicoils into my cylinder holes....and that was it. No $190 modification necessary.
1. It uses a repitched 13/17 because the out of the box 13/17 is too steep? WTF My Lamey will sit still and go almost no where with a 13/17. It is ripping a 15/19 completely free. The latest big bore Team Scream stock stroke cylinders are ripping the smaller Hooker impellers free.
2. bored 38mm carbs? Really? That's it? 44's can be used but they use more fuel? If jetted right the ONLY reason 44mm carbs would use more fuel is because it was allowing the engine to ingest more air. Air = HP. That is engine building 101 stuff.
3. The Team Scream BILLET 845cc POWER VALVE Engine with head is $2900. The GroupK modified stock stuff is $1800 + $370 in cores + $170 for a Girdle kit + $190 for a modification to the Factory pipe B-pipe (that I am not 100% sure is necessary).
4. $500 for a set of pistons and rings and head gasket when it needs a rebuild? $179 PER piston + $31 per set of rings + $79 for 1 head gasket. Seriously? I think I understand his hatred of O-rings....you can't change $80 for a replacement o-ring.
5. Back to this exhaust manifold modification. I used a 760 cylinder on my first big bore stroker. In order to use my 650 style FPP manifold I threaded some helicoils into my cylinder holes....and that was it. No $190 modification necessary.
skinnyman
YOU CANT RENT MY SKI
- Location
- Dallas/ToyBox
We will see if its a dog
When its all said and done out of pocket will be 2050.00 for all needed parts and mods
Mine will be here in 2 weeks or so
I will have the 845 set up exactly as per Group K specs(44 carbs,pro tec mod ignition prop etc.)
In my other ski I have A billit stk stroke lamey 85mm falt top with digital TL
I will let 4 or 5 buds ride them back to back and get there feedback
Aaron if you come to lake you should take a spin on them I would like to hear you feedback since you have a already have opinion on this set up.
I have used many builders over the last 5 yrs of running BB motors they all have a different way of doing things Group K looks at things a little diffrent they like to use stk parts and concentrate on HP and reliability.
When its all said and done out of pocket will be 2050.00 for all needed parts and mods
Mine will be here in 2 weeks or so
I will have the 845 set up exactly as per Group K specs(44 carbs,pro tec mod ignition prop etc.)
In my other ski I have A billit stk stroke lamey 85mm falt top with digital TL
I will let 4 or 5 buds ride them back to back and get there feedback
Aaron if you come to lake you should take a spin on them I would like to hear you feedback since you have a already have opinion on this set up.
I have used many builders over the last 5 yrs of running BB motors they all have a different way of doing things Group K looks at things a little diffrent they like to use stk parts and concentrate on HP and reliability.
Shifty
- SuperJet Thursday -
- Location
- Austin Texas - Lake LBJ
Here are some pictures, its so tempting to put this together right now to test, but im happy with my ski and don't want any down time, plus I am still missing some parts.
The transfers look a little small to me though. I guess thats unavoidable on a stock cylinder with huge sleeves. They could have opened them up some more I think, I just didn't opt for it since its going on the back burner.
Nicest looking stock cylinder I have ever seen.
When my friend told me he was getting this, I went out and bought an MSD TL sytem in hopes of keeping up with my 701. I hope to find out someday
The transfers look a little small to me though. I guess thats unavoidable on a stock cylinder with huge sleeves. They could have opened them up some more I think, I just didn't opt for it since its going on the back burner.
Nicest looking stock cylinder I have ever seen.
When my friend told me he was getting this, I went out and bought an MSD TL sytem in hopes of keeping up with my 701. I hope to find out someday
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Shifty
- SuperJet Thursday -
- Location
- Austin Texas - Lake LBJ
Polish jet pilot
4aces4aces4aces4aces4aces
- Location
- Warsaw, Poland
I say it will work very well, and price wise (2K) looks very nice. Easy to copy too
Shifty
- SuperJet Thursday -
- Location
- Austin Texas - Lake LBJ
I don't know how easy it would be to duplicate. The pistons, I believe are custom Wiseco's and the sleeves look to be custom, I have neever seen flanged sleeves like these before.
Doing a little more reading; their website mentions the boost port on the piston. They say it helps make up for the lost transfer port size. This motor it tempting me.
Doing a little more reading; their website mentions the boost port on the piston. They say it helps make up for the lost transfer port size. This motor it tempting me.
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