onebadhemi Posted January 31, 2014 Report Share Posted January 31, 2014 So I have a few questions first of all should bore my stock cylinders to 66mm and what are the benefits of doing so??? And I wanna port and polish them also is there specific port you guys could recommend!? And hot rod crank yes or no and benefits Quote Link to comment Share on other sites More sharing options...
Man-O-Steele Posted January 31, 2014 Report Share Posted January 31, 2014 what is the current bore on your cylinders? i wouldnt try boring them to the maximum thinking your going to gain hp. 66 is getting pretty close to the maximum bore size on a stock cylinder reliably. if your pushing 66mm on your bore id probly try to find another set of cylinders to have ported. Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 They are currently stock but my piston blew on me so I want to get them bored honed and ported and polished Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted January 31, 2014 Report Share Posted January 31, 2014 Bore only enough to clean up damage 1 Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 Going to be wasting time and money doing or should I just nut up! And and pay extra for better cylinders? If so what is the best I could go with Quote Link to comment Share on other sites More sharing options...
Young Guns Racing Posted January 31, 2014 Report Share Posted January 31, 2014 First off lets establish what kind of riding are you going to be doing with the bike and what kind of HP are you thinking about putting down? Next, what kind of fuel do you want to run? and lastly....what is your budget?$?$? Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 Duning and trail riding mostly duning but Idk dude I'm a heavy set guy looking for some nice pull and I still want to stick to pump occasionally VP and I've got probably about a grand too play with! Quote Link to comment Share on other sites More sharing options...
Young Guns Racing Posted January 31, 2014 Report Share Posted January 31, 2014 Well, after adding alot of power you will need to upgrade your suspension to get it all to the ground. I would recommend getting your cylinders ported with a nice dune/play port, bored to the next usable size and invest in a cool head so you can take advantage of custom cut domes for pump fuel. Next an adjustable timing plate, +4 is very safe. Nice set of intakes w/ vforce reeds and K&N pod filters. You will need a good set of pipes if you dont already have them. CPI's will be a nice compliment in the trails and dunes, they will have a fatter mid range hit than shearers but at the same time will fall off on top a little sooner than shearer pipes. If you are looking at doing alot of drag racing, go with the shearer pipes. If you are going to ride and dune it alot - CPI pipes. That should get you where you want to be and easily in the 60HP range. If you are going to go in the bottom, might as well do a +4mm crank from hot rods. When having your cylinders ported you can have them done for the +4mm stroke, gain some nice torque and a little bottom end, and bump up towards the 70hp range. This should get you started. If you wanted to go all motor first, a 4 mil serval package puts out nice HP 70s-80s and will be very rideable for trails and the dunes. CPI pipes are very nice compliments to the serval cylinders. The entire serval setup will cost you roughly between $1725 - $2000 depending who you buy from. You can always have that cylinder ported as well. Just dont forget your suspension, there is no way around it, it WILL need to be upgraded. Hope this helps! -Jon Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 The motor I have is stock I have stock carbs,v force4 Reeds,pro design coolhead with 20 cc domes and stage 4 trinity pipes and the crank is still stock but what are the benefits from a +4!? Thanks for all the info jon Quote Link to comment Share on other sites More sharing options...
wayne_smith97 Posted January 31, 2014 Report Share Posted January 31, 2014 The motor I have is stock I have stock carbs,v force4 Reeds,pro design coolhead with 20 cc domes and stage 4 trinity pipes and the crank is still stock but what are the benefits from a +4!? Thanks for all the info jon Advancing the timing will help out the low end power some 1 Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 Oh ok and what are the benefits of the 4 mm crank? Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 And what about a drag port Quote Link to comment Share on other sites More sharing options...
Young Guns Racing Posted January 31, 2014 Report Share Posted January 31, 2014 Sweet so you can save yourself a little money just having that stuff right there. 4 mil will give you more torque and a good low end power increase. With port work a 4 mil setup can net you quite a bit more over stock HP and be very fun to ride. The cranks just drop right in so its an easy upgrade. Not to mention it sets up a platform for the bigger 4 mil cylinder setups out there if and when you decide to upgrade to a cub or serval in the future. Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 So all the upgraded cylinders are based off of the crank u run? Or what's the deal with that? Like serval and cubs are just cylinders but they whole engines too no? Quote Link to comment Share on other sites More sharing options...
onebadhemi Posted January 31, 2014 Author Report Share Posted January 31, 2014 And should I upgrade carbs to 35 mm pwk Quote Link to comment Share on other sites More sharing options...
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