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Posted (edited)

ok im going 4mm this winter .im wondering if i went 4mm with stock '110' rod would i be loosing alot ''powerwise '' compared to doing the 4mm long '115'?this will be a trail / ice set up . thanks once again

Edited by shakar
Posted

115-slightly more tq on long rod and less side load...also slightly slower revs

 

110-alittle faster revs with alittle less out of the hole tq....and more side load on piston.

 

 

 

 

110 rod is more prone to break piston skirts when piston to wall clearance is to high

 

 

Posted

listen to the question... LONG ROD....

 

do you want to say you have a LONG ROD or tell people your rod is short?

 

110 has its place in race apps but in dunes, pits and trails, 115 is a touch above with less stress on parts

Posted

My engine builder suggested the 110 for my dune/drag application since it revs faster and two strokes make more power up top. I'm running modified 513p5 pistons.

Posted

Long rod for reliabilty.

 

My engine has been running since 2006 with no problems at all, granted I only ride a few times out of the year but its for a week or two at a time in the dunes usually. My brother is running the same setup as me and he has not had any problems either.

Posted

My engine has been running since 2006 with no problems at all, granted I only ride a few times out of the year but its for a week or two at a time in the dunes usually. My brother is running the same setup as me and he has not had any problems either.

Lets not dog on them boys... they enjoy playing with their short rods. The rest of us enjoy our long rods. Gives us more leverage in the mud.

Posted

either way will be fine. on 350's iprefer the 110 rod. i dont run my shit in the mud either.

 

if the piston to wall clearance is to much welp you need a rebuild.. short rods are more prone to breaking? HUH?

Posted

ive never seen a 110 or 115 rod make anymore power over the other, as long as everything else is the same.

 

never seen pistons wear faster with a 4mm 110 rod.

 

the only differences between the two are going to be what piston and dome angle you are going to use along with it.

Posted

i get both sides to the arguements here.....and honestly i'd probably say that i would probabably run the 115 if i had money to just replace a crank for no reason. However the stock rod length seems to hold up pretty freakin good for being older technology.....and that's 110. BUT....if i had the money and could warrant the need for a 115 then i'd get it.....might hold out til someone wants to donate a 7 or 10mil... :rotflmao:

Posted

.......so if i get the 4mm 110 rod i believe ''correct me if im wrong'' i can run the banshee pistons that i have now with the spacer plate? i know.... i know... i should have them ported for a 4mm but moneys to tight due to x-mas.will i also need new domes cut or ?? thanks again

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