j440 Posted September 2, 2014 Report Share Posted September 2, 2014 So I bought some stock cylinders to replace my blown ones. Well I finally pulled the intake and reeds off of the stock cylinders and more news to me, it looks like they added ports or something.. Some serious work looks like. Heres some pictures of what I mean. Is this a common mod? Trying to learn about these things and why and what kind of mods people are doing. This seems pretty interesting.. Heres the old modified cylinder (see the crack/broken peice, thats why i opted for a new cylinder rather than having that fixed/resleeved.... might reconsider if the price to match this cylinder is outragous) Here is the stock cylinder I just bought Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted September 2, 2014 Report Share Posted September 2, 2014 More pics of the port windows on the sleeves. Looks to be ported to me. Are you sure your old cyls are ruined? Maybe a bore job? Quote Link to comment Share on other sites More sharing options...
j440 Posted September 2, 2014 Author Report Share Posted September 2, 2014 Old modified Stock comparison Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted September 2, 2014 Report Share Posted September 2, 2014 I see where it broke. That sucks. But yeah your gonna be mildly disappointed when you get the stockers on. Quote Link to comment Share on other sites More sharing options...
j440 Posted September 2, 2014 Author Report Share Posted September 2, 2014 (edited) Not putting stockers on. I want to send the right cylinder out to get matched to the left. (the left wasnt damaged when it blew up) Can anyone do this work? I talked to F.A.S.T before i knew this. It seems like redline does some good work too.. I want the same setup going back in this thing, it was insane fast. Edited September 2, 2014 by j440 Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted September 2, 2014 Report Share Posted September 2, 2014 Wait. You bought one cylinder? It'll be tricky to match unknown port work. It would of been easier to just get a new set of cylinders with a low bore and port them and start fresh. Have that topend for a while. What bore are they now? Does the one side need another size up to freshen it up? Quote Link to comment Share on other sites More sharing options...
j440 Posted September 2, 2014 Author Report Share Posted September 2, 2014 (edited) No I bought two, but I figured since the one was fine I could have someone match it, or put their own touch to it. Looked near new when I pulled it off. Probly just hone it if I keep it I would have no problem getting the new cylinders ported together if thats easier. As long as I can match the power I had or top it.. I just figured what was in it was pretty good. Do you think a good port job without those boost ports would be as good if not better? Edited September 2, 2014 by j440 Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted September 2, 2014 Report Share Posted September 2, 2014 Get them ported as a set. Redline, fast, hjr etc will get u back in the game. Check the list of site sponsors for a sure thing Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted September 2, 2014 Report Share Posted September 2, 2014 The old jugs looked like the sleeve was pretty thin anyway. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted September 3, 2014 Report Share Posted September 3, 2014 Send both new jugs and good old jug to one builder. Ask them their thoughts about that cylinder. Go over what you liked and didn't like about previous jugs. They might be able to improve upon that. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted September 3, 2014 Report Share Posted September 3, 2014 I wouldn't match a jug to the ported one. It'll just crack just like the one in the picture. 1 Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted September 3, 2014 Report Share Posted September 3, 2014 Send both new jugs and good old jug to one builder. Ask them their thoughts about that cylinder. Go over what you liked and didn't like about previous jugs. They might be able to improve upon that. ^^this^^ Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 3, 2014 Report Share Posted September 3, 2014 I agree it will crack again if you match I have personally seen more than a few crack in that exact spot from too much material taken out and bad rod angle Quote Link to comment Share on other sites More sharing options...
LaegerEliminator Posted September 3, 2014 Report Share Posted September 3, 2014 I wouldn't match a jug to the ported one. It'll just crack just like the one in the picture.Sprinklerman is right. I just experienced an almost identical failure to this with my stock cylinder setup. My stock cylinders are bored to 66 mm and have very similar looking port work. I made the decision to go away from stock cylinders and have Redline build me a ported Serval. There was only about a $100 difference in going the Serval route versus starting over correctly with stock cylinders. Sent from my DROID RAZR using Tapatalk Quote Link to comment Share on other sites More sharing options...
LaegerEliminator Posted September 3, 2014 Report Share Posted September 3, 2014 You're gonna want to have your crank checked out while your motor is apart. Looks like there is a bit of metal debris in the pic of the damaged cylinder. Sent from my DROID RAZR using Tapatalk Quote Link to comment Share on other sites More sharing options...
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