james berry Posted May 2, 2014 Report Posted May 2, 2014 I have a hot rods crank i believe is 4 mil, hot rods long rods, will need new pistons, have cylinders bored .040 over, I have a cool head. Can this setup be reliable every day rider. on my bike now I have stock bottom end, Wiseco .030 over pistons, vforce reeds, cool head. Its extremely reliable but I would like some more power. What do you guys think about reliability of the 4 mil setup is it worth my time? Quote
oldskool Posted May 2, 2014 Report Posted May 2, 2014 X2, Get it tuned properly, correct squish. make sure domes/piston are a match. Very reliable motor Quote
WINDYCITYJOHN400 Posted May 2, 2014 Report Posted May 2, 2014 You can make a TON of power and still have reliability. The only thing that really makes these motors unreliable is OWNERS who do a poor job at JETTING. Simply doing a bore and a 4 mill crank isn't even going to get you in the 60HP range, so your not compromising reliability at all. BUILD ON! Quote
james berry Posted May 23, 2014 Author Report Posted May 23, 2014 Thank you all on this. I am going with Wiesco Pistons 66 mm, boyesen two stage reeds, My Pro circuit full exhaust, cool head, port matched cylinders and of course the 4mil crank with long rods. I think this will work out ok. Quote
WINDYCITYJOHN400 Posted May 23, 2014 Report Posted May 23, 2014 You can make 100HP reliable. It only requires proper jetting. The "Unreliable" reputation comes from thousands of poorly jetted motor failures. Quote
sleeper06 Posted May 23, 2014 Report Posted May 23, 2014 Its only as reliable as the builders attention to detail, and the parts you put in, you stated you had a crank, is it used? Quote
bluebanshee98 Posted May 23, 2014 Report Posted May 23, 2014 The "Unreliable" reputation comes from thousands of poorly jetted motor failures.I would also add the ones that have air leaks causing too lean conditions and causing meltdowns Quote
camatv Posted May 23, 2014 Report Posted May 23, 2014 lots of sub par parts available right now.. good thing is there are a lot of improved parts that can make or break a build.. Quote
SandSlingerOR Posted May 23, 2014 Report Posted May 23, 2014 Trinity Racing makes nice & reliable set ups. Have them make you a set of domes & a port job. 1 Quote
WINDYCITYJOHN400 Posted May 24, 2014 Report Posted May 24, 2014 Trinity Racing makes nice & reliable set ups. Have them make you a set of domes & a port job. LMFAO Quote
Coupelx Posted May 24, 2014 Report Posted May 24, 2014 You can make a TON of power and still have reliability. The only thing that really makes these motors unreliable is OWNERS who do a poor job at JETTING. Simply doing a bore and a 4 mill crank isn't even going to get you in the 60HP range, so your not compromising reliability at all. BUILD ON! Another thing is people being cheap. If it seems cheap its junk. You have to pay to play! Quote
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