I did talk to someone at thrustone today. confirmed listing on website is old. I noticed the mx100 cylinders exterior machine lines are the same as et. anyone have info on the mx100 engine?
Trying to see if anyone has info on who or where ET cylinders are being made again? Thrustone shows 967 and 1107 top end kits available. Anyone know if they are really available? I tried calling and leaving a message but no one has gotten back to me so far.
nope. jet ski stuff never made enough money for the hassle. jet ski engines were never the majority income for cpt and just weren't worth it. building a new ski for myself and selling my current ski and my back up (this one listed).
2017 tigercraft sv1
780 +4mm stroker
44mm dual carb
php billet intake manifold
factory b pipe
Solas 144 mag pump
kp handle pole
thrust steering
thrust trim
adjustable footholds
front foothold
awesome surf ski been sitting winterized and fogged for 2 years. very little time on entire build...
I use this
With these
Everytime i ride. Under 50 bucks total. My friends think it's funny they see me bobbing my head while ripping. They just don't understand how i can listen to country while riding.
Chuck Palmucci
@Storbeck
You would want to be around 7.5:1 dynamic compression. To achieve that with your bore size and port timing you'd want your trapped head volume to be 33.5cc. That's assuming your engine is stock stroke. One helpful hint is if your modifying stock head start with a 701 head not 64x...
62t cylinder will work great. Dont raise the top of the exhaust port any. Just follow the template to widen the exhaust. Honestly most 62t cylinder the transfer ports match fairly well so dont go crazy there either. You can cause more harm then good if you get the transfer port exit angles off...
There's a free boat ramp on the west side of the Halifax river in holly hill. It's less then 10 minutes from the event ride zone and has next to no slow speed zone. Great test and tune place if your looking for a closer spot to the ride
Got a min to reread all your numbers. 2 questions.
Does your dome cc measurement include the spark plug hole volume? Spark plug hole volume is 1.5cc but i only subract 1cc for calculation because 1/3 of the volume stays open even after the plug is installed.
You give 37mm as your measurement...
@Zero Client
If you read the text at the bottom of that calculator again it talks about using the intake valve closing to get dynamic compression of a 4 stroke. Not a 2 stroke. You use the closing of the exhaust port for dynamic or trapped compression ratio on a 2 stroke. I can't stress how...
Warning hopefully this doesn't get to long.
The link to the compression calculator above is static compression ratio not dynamic. It doesn't does not factor the exhaust port height.
http://www.torqsoft.net/compression-ratio.html
This online calculator is what you need to live by. Keep in...
Scott
Give me a ring on the phone. You still got my number? I'm pretty sure I didn't deck the cylinder when it was here. Send it over and ill take a cut on the deck surface to make sure its true. Just pay the return shipping
Thanks
Chuck Palmucci
CPT Enterprise LLC
609 510 3062
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