twinrock Posted July 25, 2007 Report Posted July 25, 2007 first of all can it be done..im aware that the cases will have to be trenched..but by how much i also read some where that a spacer will be needed as well as port timings matched..also id be lookin to do this with a short rod crank if they r available in this stroke..thanks// Quote
locogato11283 Posted July 25, 2007 Report Posted July 25, 2007 it can be done but you really should have a builder set it up right. a better alternative would be to buy the 10mm cast cub cylinders. thats what im running. i think you should consider it. Quote
FireHead Posted July 25, 2007 Report Posted July 25, 2007 it can be done but you really should have a builder set it up right. a better alternative would be to buy the 10mm cast cub cylinders. thats what im running. i think you should consider it. This is more of a DIY project than the stock cylinders deal is. :geek: Quote
TurboBanshee420 Posted July 25, 2007 Report Posted July 25, 2007 If your looking into a 10mil maybe you shouldn't mess with stockers anymore. Listen to firehead and just get some cubs. No spacer needed with the 10mil cub cylinder. Quote
blowit Posted July 25, 2007 Report Posted July 25, 2007 first of all can it be done..im aware that the cases will have to be trenched..but by how much i also read some where that a spacer will be needed as well as port timings matched..also id be lookin to do this with a short rod crank if they r available in this stroke..thanks// Yes it can be done but with much difficulty. Reasoning is because of excessive port timing that will always be a problem. Just fitting the stroke in the hole is a small part of the equation. Basically, to make it right, the ports need to be relocated for the different stroke. I highly recommend aftermarket cylinders for that much stroke. Brandon Quote
twinrock Posted July 25, 2007 Author Report Posted July 25, 2007 [hey thanks guys.. quote name=blowit' date='Jul 25 2007, 12:51 PM' post='700378] Yes it can be done but with much difficulty. Reasoning is because of excessive port timing that will always be a problem. Just fitting the stroke in the hole is a small part of the equation. Basically, to make it right, the ports need to be relocated for the different stroke. I highly recommend aftermarket cylinders for that much stroke. Brandon Quote
FireHead Posted July 25, 2007 Report Posted July 25, 2007 Basically, to make it right, the ports need to be relocated for the different stroke.Brandon That was what I was getting at that made it not so much of a DIY porject. That setup on my red bike is going in the trash as soon as it blows up. Quote
alcoholbanshee Posted July 25, 2007 Report Posted July 25, 2007 Tony Doukas has sleeves for this that when installed the sleeve is actually above positive deck hieght......so no spacer is needed. It also relocates the ports to where they need to be....Not best way to do things...but it would be stealth. NObody would know unless you told them!!! I also would not run a stock rod length, to steep of a rod angle!!! The best for you would probably be to go with a cub setup, but what you want can be done. Quote
RZBansheeMan Posted July 25, 2007 Report Posted July 25, 2007 Assuming that all the sleeves on the TDR site are for stock cylinders, would there even be enough port volume on the intake side, without doing a big reed conversion to feed this monster ? Also what about the volume of the transfers ? I am assuming that all this is quite possible with a 72mm bore and a 64 mm stroke but also seems like it would be extremely expensive when the cubs are as plentiful as they are, unless somebody like myself, likes to try and keep a sleeper look. I wonder if it would be possible to have a set of copycat viper sleeves made in to these big sleeves that TDR has ? Any thoughts ? Mike Quote
alcoholbanshee Posted July 25, 2007 Report Posted July 25, 2007 Assuming that all the sleeves on the TDR site are for stock cylinders, would there even be enough port volume on the intake side, without doing a big reed conversion to feed this monster ? They would certainly benefit from larger intakes (cr125) but not totally necessary! Also what about the volume of the transfers ? Once again more would be better......but plenty of builders have made it work!!! I am assuming that all this is quite possible with a 72mm bore and a 64 mm stroke but also seems like it would be extremely expensive when the cubs are as plentiful as they are, unless somebody like myself, likes to try and keep a sleeper look. This would only magnify the problem of an already small transfer area!!! I am not a big fan of stock cylinder, big bore for this reason. Also the big bore sleeve is really close to the head studs, causing them to pull out very easily!! I wonder if it would be possible to have a set of copycat viper sleeves made in to these big sleeves that TDR has ? Any thoughts ? Mike Quote
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