sleeve grinding (racing purposes only)

[RC Cadereyta]

hi! have you ever seen or heard about grinding a sleeve?

supposedly you make a small grind on the directions of the outside of the ports (outside of the sleeve grind only) the objective its to reduce a little bit the sleeve thickness in the lower part of the ports, to improve fuel intake and exhaust gases, you should make a small grind and then polish the area and clean it, to improve models performance.

i have images and a manual about this grinding procedure, probably sharing them here in 1 or 2 days.

here is a improved small chart i still remember about this, hope u understand!


A=stock model B= modified grinded sleeve model


1ft---------2ft-------3ft------4ft------5ft----------6ft-------7ft
_l_________l________l____distance_travel line______l________l___

A1sec_____A2sec________A3sec___________A4sec____________

B1sec_________B2sec______________B3sec____________________B4sec



hope its usefull

rc cadereyta here!!

 

[maddmaxx65]

say what x-y=z lol

 

[dub c]

P n P on a sleeve can be rewarding. I put all my engines under the dremel. I like to be sure they are well broke in and well tuned prior to doing this type of mod. Be carefull and patient.

 

[maddmaxx65]

i allways wanted to experament with porting and polishing but never had the time heck i have a hard enough time to keep one of my rigs rtr

---------- Post added at 9:50 AM ---------- Previous post was at 9:49 AM ----------

sorry my spelling sucks

 

[Nitro4910]

If your racing you better check to see if it'd allowed in your class before you try your hand at Porting & polishing your race engine sleeve.