amado814 Posted October 23, 2013 Report Share Posted October 23, 2013 Question may come off kind of silly but I just don't know. What are the powervalves on a t rex cylinder? How do I know if I have it ? And where is the transfer port ? I did do some research but can't seem to find the answers . Any help is appreciated , even the smart ass ones . Thx Quote Link to comment Share on other sites More sharing options...
#1JUANstunna Posted October 23, 2013 Report Share Posted October 23, 2013 . Any help is appreciated , even the smart ass ones . Thx Asking for trouble. lol. PV should be sticking out above the exhaust port on top of the cylinder. Black piece is part of the PV on this cylinder. Quote Link to comment Share on other sites More sharing options...
amado814 Posted October 23, 2013 Author Report Share Posted October 23, 2013 Is that something I need ? Or can I run them without the pv? Quote Link to comment Share on other sites More sharing options...
#1JUANstunna Posted October 23, 2013 Report Share Posted October 23, 2013 Well hopefully you have block off plates if you aren;t running PV's. Otherwise its not going to run. Quote Link to comment Share on other sites More sharing options...
amado814 Posted October 23, 2013 Author Report Share Posted October 23, 2013 This is what I got . Sent from my HTC One VX using Tapatalk Quote Link to comment Share on other sites More sharing options...
lms1977 Posted October 23, 2013 Report Share Posted October 23, 2013 Wow epoxy.. the poor mans block off.haha Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 24, 2013 Report Share Posted October 24, 2013 ^ that's how guys started doing it when T-Rex's were the hot new thing. For all we know that could be from 10-12 years ago. OP, You don't NEED the power valves granted there is a block off done to the exhaust port. Your set up appears to have a decent epoxy job and I think you should see if the motor will pass a leak down to verify it is sealed up good. If so, run it. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 24, 2013 Report Share Posted October 24, 2013 Shows what the transfer port is/does. http://indigo.ie/~vire7/2stroke.htm Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 24, 2013 Report Share Posted October 24, 2013 What a power valve is. Although these will be servo not exhaust pressure like your Rex. http://www.yamahapart.com/page/yamahapowervalvesystemypvs Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 24, 2013 Report Share Posted October 24, 2013 Most simply put exhaust pressure controlled Power Valve. http://adrenalinpedstop.blogspot.com/2011/05/athenas-innovative-new-power-valve.html?m=1 Quote Link to comment Share on other sites More sharing options...
amado814 Posted October 24, 2013 Author Report Share Posted October 24, 2013 Thanks for the info . After talking to tony at tdr . I decided to run the powervalves . It's going to be a project but I got time . Now to find a machine shop to machine out the bottom end to fit these jugs . Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 24, 2013 Report Share Posted October 24, 2013 Uhh, Tony Doukas? Quote Link to comment Share on other sites More sharing options...
registered user Posted October 24, 2013 Report Share Posted October 24, 2013 that should be fun grindin all that epoxy out Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.