I would'nt polish the angled part or any part that comes in contact with fuel it usually forms droplets which is not really what you want. You want as fine a mist or in other words to atomise the fuel as much as possible. This makes the engine more efficient meaning you will get more power from the charge in the cylinder for the amount of fuel and air that went in against the fuel and air that formed droplets. Normaly 80 grit wet and dry is used to rough intake walls on ports to prevent it.
Who ever did the porting screwed that sleeve up. First your using the wrong plug. That is made for air craft, it's a A type OSMax plug. That piston is detonating because of the port flooding from the modification. You have to lean the engine up for it to run right. Also you totally destroyed the the firing pattern to the combustion chamber.
savages normally do wheelies any ways..????..easy way to make a stock rc do a wheelie...stiff rear shocks low gearing spur gear...and u will be the wheelie king...
@tman1335 well when i got my savage it never came with a engine so when i got this, it barley did any wheelies but i have gotten a s-25 engine and thought it had more power but it didnt. After i got the right pipe for the .21 it has so much power now more than a s-25 engine with a tuned pipe
@30GB you got the savage from me, it came with that motor , and the hyper pipe aswell, with the ofna 8 port .21 its shit it looks like its fast but its just off the line torque, the dynamite 053 mr or the jp3 is a better choice, i run the 053mr and my hyper 7 is significantly faster, yeah this is the guy you traded the xray for, not bashing you but the 053mr or the jp3 is waaay better choice, or if you wanna get outrageous, go twin tipped and she`ll scream like a lil bitch
@Crystaaaaaaall the motor that came with the truck is a s-25, this motor i bought was from another guy 4 years ago and i still have it. also this motor puts out more power and top end than a .25 motor because of its ports but i got a o.s something pipe and it kicks ass and its worth $100 alone
i dont thing what your doing seriously, the piston wont go lower than the exhaust port enyweys so all those canals will just stop the fuel from coming up. if you want to see how a twostroke cylinder is kinda suposed to work, theen look at a moped cylinder called hebo manston.
@maxbify these engines work differently to a normal gas 2 stroke you fuck witt, who cares mopeds are gay, I bet a decent nitro would eat that 70cc primitive junk your talking about... 25hp from a 70cc LOL yeah right dude pull the other one, your flat out getting 70 to 80 hp out of a Honda CR500 mill without massive port revision and crank work, go play with your mopeds little boy and leave the nitro engines to the lads who know how to work their magic like the bloke in this vid...
@fightboy1000 hmm? i dont get it, but these small engines are 2 strokes and works the same as all other 2 stokes in the cylinder, the intake is a little difrent from engine to engine, you obviosly dont know a shit about this so stfu?.. and yes you can get 25 hp from a 70cc and alot more if u put this nitro thing youre talking about in it
I would'nt polish the angled part or any part that comes in contact with fuel it usually forms droplets which is not really what you want. You want as fine a mist or in other words to atomise the fuel as much as possible. This makes the engine more efficient meaning you will get more power from the charge in the cylinder for the amount of fuel and air that went in against the fuel and air that formed droplets. Normaly 80 grit wet and dry is used to rough intake walls on ports to prevent it.
oakleymac1 1 year ago
u sound like a fag from cali
supersport3381 1 year ago
Comment removed
RBMods1 1 year ago
This has been flagged as spam show
Who ever did the porting screwed that sleeve up. First your using the wrong plug. That is made for air craft, it's a A type OSMax plug. That piston is detonating because of the port flooding from the modification. You have to lean the engine up for it to run right. Also you totally destroyed the the firing pattern to the combustion chamber.
RBMods1 1 year ago
Comment removed
RBMods1 1 year ago
savages normally do wheelies any ways..????..easy way to make a stock rc do a wheelie...stiff rear shocks low gearing spur gear...and u will be the wheelie king...
tman1335 1 year ago
@tman1335 well when i got my savage it never came with a engine so when i got this, it barley did any wheelies but i have gotten a s-25 engine and thought it had more power but it didnt. After i got the right pipe for the .21 it has so much power now more than a s-25 engine with a tuned pipe
30GB 1 year ago
@30GB you got the savage from me, it came with that motor , and the hyper pipe aswell, with the ofna 8 port .21 its shit it looks like its fast but its just off the line torque, the dynamite 053 mr or the jp3 is a better choice, i run the 053mr and my hyper 7 is significantly faster, yeah this is the guy you traded the xray for, not bashing you but the 053mr or the jp3 is waaay better choice, or if you wanna get outrageous, go twin tipped and she`ll scream like a lil bitch
Crystaaaaaaall 11 months ago
@Crystaaaaaaall the motor that came with the truck is a s-25, this motor i bought was from another guy 4 years ago and i still have it. also this motor puts out more power and top end than a .25 motor because of its ports but i got a o.s something pipe and it kicks ass and its worth $100 alone
Miimiikinzz 11 months ago
i dont thing what your doing seriously, the piston wont go lower than the exhaust port enyweys so all those canals will just stop the fuel from coming up. if you want to see how a twostroke cylinder is kinda suposed to work, theen look at a moped cylinder called hebo manston.
maxbify 1 year ago
@maxbify you got no idea.
fightboy1000 1 year ago
@fightboy1000 yeah sure... and you do? tell me when you got 25 hp out of an 70 cc cylinder.
maxbify 1 year ago
@maxbify these engines work differently to a normal gas 2 stroke you fuck witt, who cares mopeds are gay, I bet a decent nitro would eat that 70cc primitive junk your talking about... 25hp from a 70cc LOL yeah right dude pull the other one, your flat out getting 70 to 80 hp out of a Honda CR500 mill without massive port revision and crank work, go play with your mopeds little boy and leave the nitro engines to the lads who know how to work their magic like the bloke in this vid...
fightboy1000 1 year ago
@fightboy1000 hmm? i dont get it, but these small engines are 2 strokes and works the same as all other 2 stokes in the cylinder, the intake is a little difrent from engine to engine, you obviosly dont know a shit about this so stfu?.. and yes you can get 25 hp from a 70cc and alot more if u put this nitro thing youre talking about in it
maxbify 1 year ago
Buy a new piston and sleeve. Wants you damage it is never the same. Or you can go ahead and change your brain!!!!!!
5scaleracer 2 years ago
my ass it needs a new one, i been running it almost half gallon on hi rpms and its running fine
30GB 2 years ago
your detonating BAD! adding shims wont help your timing is off cut your exhuast port .018 higher
FloridaSnookHunter 2 years ago
Your detonating!
dvspot 2 years ago
at some more shims to it, i think you might be detonating like dvspot said
KixmixaGTR 2 years ago
How do you actualy port a engine sleeve?
popcornreviews 2 years ago
you should get into that crank and gut it.
adb140275 2 years ago
its all ready prepped stock so i dont need to thats why it was so powerful already
30GB 2 years ago
not as prepped as you can make it...
adb140275 2 years ago
wow that looks like a bullet shell hehehe. keep up the good work man
DannysCam 2 years ago 3