biggun6ss Posted July 6, 2005 Report Posted July 6, 2005 On a long rod kit do you use a shorter piston, taller piston or just stock piston with whatever bore you have? Also, do you have to add a plate to allow the longer rod to travel without hitting the head? Finally, why does a long rod help? Does it increase the stroke giving you more cc? Does it give more top or bottom end? Just wondering and sorry about all the questions Quote
CombatTalon2 Posted July 6, 2005 Report Posted July 6, 2005 On a long rod kit do you use a shorter piston, taller piston or just stock piston with whatever bore you have? Also, do you have to add a plate to allow the longer rod to travel without hitting the head? Finally, why does a long rod help? Does it increase the stroke giving you more cc? Does it give more top or bottom end? Just wondering and sorry about all the questions 389332[/snapback] The rod is longer in mine by 5mm, and the hole in the piston where the wrist pin goes is 5mm closer to the crown of the piston. My shee uses blaster pistons! same stroke, just differant rod and pistons. As far as what does it do: I really dont know. my bike runs good, but im not sure if it is any better than stock length rods and banshee pistons. Quote
dajogejr Posted July 6, 2005 Report Posted July 6, 2005 A longer rod provides more leverage on the crank....which, makes more power. The normal is a 4 mil stroker crank and Wiseco 927 or 947 (forgot which) pistons. They are offset for the longer rod. You'd also have to have your head remachined to match...I think they call it the squish angle. Has to do with the cut/size/shape of the dome in your head. Think of it this way....ever try to loosen a nut with a small ratchet? Tough...huh? ever put a foot long pipe on that ratchet? Much easier to break loose, if you don't break it off. Similar in a stroker crank. Normally..it'll up the displacement a little...but, with more leverage from the pistons to the crank, you'll make more power.... Quote
stclark816 Posted July 6, 2005 Report Posted July 6, 2005 http://www.bansheehq.com/forums/index.php?showtopic=47377 Read the last two replies on that page. Might help you a little.. Quote
CombatTalon2 Posted July 6, 2005 Report Posted July 6, 2005 (edited) A longer rod provides more leverage on the crank....which, makes more power. The normal is a 4 mil stroker crank and Wiseco 927 or 947 (forgot which) pistons. They are offset for the longer rod. You'd also have to have your head remachined to match...I think they call it the squish angle. Has to do with the cut/size/shape of the dome in your head. Think of it this way....ever try to loosen a nut with a small ratchet? Tough...huh? ever put a foot long pipe on that ratchet? Much easier to break loose, if you don't break it off. Similar in a stroker crank. Normally..it'll up the displacement a little...but, with more leverage from the pistons to the crank, you'll make more power.... 389408[/snapback] you are talking about 2 differant things here. its either a Long Rod or a Stroked crank. a long rod is just that (a longer rod and a piston with the wrist pin holes raised to match the added length of the rod) or a stroker crank. With the stroked crank the point at which the rod connects to the crank is moved out from the center, thats when you get the extra leverage. And with a stroker you need to worry about squish and spacers. If you are just doing a long rod you dont need to worry about that other shit, just make sure you have the right pistons to match your longer rods. ps....unless of course you have a long rod stroker crank......then its a combination of both. Edited July 6, 2005 by CombatTalon2 Quote
dajogejr Posted July 7, 2005 Report Posted July 7, 2005 You're right...I read that wrong. I meant stroker.... Quote
Polish Posted July 7, 2005 Report Posted July 7, 2005 Weisco long rod stroker/blaster pistons/coolhead 26cc big bore domes Quote
GYTWYPT Posted July 7, 2005 Report Posted July 7, 2005 The way it was explained to me is: A long rod will not necessairly give you any more power definetly wont give you any more cc. , but it will increase the longevity of your motor because the rod angle is decreased which equals less wear and tear on you crank and pistons. Made since to me.... Quote
biggun6ss Posted July 7, 2005 Author Report Posted July 7, 2005 If you use a long rod do you need to add plates. The reason I ask is because a friend of mine baught a shee and each cylinder had a plate. It's not real thick but it's not on a stock shee. Is it a stroker kit or what? Quote
CombatTalon2 Posted July 7, 2005 Report Posted July 7, 2005 If you use a long rod do you need to add plates. The reason I ask is because a friend of mine baught a shee and each cylinder had a plate. It's not real thick but it's not on a stock shee. Is it a stroker kit or what? 389568[/snapback] No, a long rod motor does not change your displacement or stroke at all from stock. So if there are spacers it may be a stroker motor... probably a 4mm if they are not very thick. pull the head and see if there has been any machining to the domes. Quote
superchicken Posted July 7, 2005 Report Posted July 7, 2005 i would have to say,with 98% accurracy that it is a stroker Quote
biggun6ss Posted July 7, 2005 Author Report Posted July 7, 2005 Does an after market head require reshaping? Also, why do people use blaster pistons instead of shee pistons? Sorry for all the questions, I just want to get this figured out. There are so many ways to mod a shee I can't keep up being new to them. Wouldn't want anything else now that I have one though Quote
GYTWYPT Posted July 7, 2005 Report Posted July 7, 2005 I believe the biggest reason people used blaster pistons is because it had the correct wrist pin height for long rod (not stroker) motors, but now weisco has the 795 pistons which have the correct pin height and the 795 piston also has the correct dome shape for the banshee. With the blaster pistons you would have to reshape the domes on your head for proper squish. later Quote
biggun6ss Posted July 7, 2005 Author Report Posted July 7, 2005 I believe the biggest reason people used blaster pistons is because it had the correct wrist pin height for long rod (not stroker) motors, but now weisco has the 795 pistons which have the correct pin height and the 795 piston also has the correct dome shape for the banshee. With the blaster pistons you would have to reshape the domes on your head for proper squish. later 389670[/snapback] So with a 795 piston the domes need no reshaping? Quote
Rare Scottish Tree Badger Posted July 7, 2005 Report Posted July 7, 2005 Another point worth noting is that stock Blaster pistons are 66mm, so you need to be .080" (2mm) over before you can use them. Rare. Quote
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