athena big bore kit?

[BANSHEE HP]

I know boring has very little to no gains... HOWEVER. When I spoke to redline in regards to building a 4mil stock cyl set up for the type of riding I did. He recommended going straight to a 66mm bore on Virgin cyls. I had...

 

I didn't ask why but I'd assuming there is a reason behind it...

 

my guess would that its the 573mo6600 piston that could be used with a 1mm higher pin height then the 795mo65xx.

[#1JUANstunna]

I see polished cylinders all the time

[ric-ross1]

I see polished cylinders all the time

 

For looks I guess.

[JAGeSage]

Polishing also decreases drag on the fuel going into the cylinders. Very Logical and beneficial

[trickedcarbine]

That means if you don't have the money to spend 2 grand on a new motor kit, a bore job, port and polish and some Vf reeds will make a big difference

Please..... Stop. Reccomending that people bore their stock cyls is a waste of cylinder life. Never bore a good set of cylinders unless needed. It's not economical at all. If you port cylinders early on in their life, what good does it do to bore it out 2 mm just to chase a few CC's and a handful of ponies. Then the first time the motor needs a rebuild it's time for new cylinders.

Not worth it. Just the fact that you refer to it as "port and polish" indicates you don't quite grasp the concept. These aren't V8 cylinder heads.

[trickedcarbine]

 

Polishing also decreases drag on the fuel going into the cylinders. Very Logical and beneficial

Ha! Ha! WTF?! It also kills atomization and velocity.

[sheerider1026]

Lol. The only thing that u canpolish is the exhaust port.. But why bother?

[KozyHeat]

I have seen combustion chambers, piston domes, and exhaust ports polished. Never have I seen transfers or intakes polished. Not even on the internet.

 

Better heat transfer, less buildup / deposits, flow, and compression stays where it should be at, but it only helps so much. Try it for yourself.

[trickedcarbine]

Piston domes huh? Ya' mean crown? If a motor is tuned right deposits shouldn't be a concern. It will be long over due for a rebuild before carbon deposits hinder performance.

[volcrano]

Omg that jagesage dude Is a retard. Dude learn what the fuck your talking about before you try and give wrong information and argue.

[trickedcarbine]

 

my guess would that its the 573mo6600 piston that could be used with a 1mm higher pin height then the 795mo65xx.

So a special 116 rod would be used? Then even less stress is on the crank?

[sheerider11]

 

So a special 116 rod would be used? Then even less stress is on the crank?

hahaha what?

[trickedcarbine]

He refered to the blaster style piston with an additional mm of pin height then the 795 style piston. 795 piston uses 115 rods so an additional mm would be?

[sheerider11]

He refered to the blaster style piston with an additional mm of pin height then the 795 style piston. 795 piston uses 115 rods so an additional mm would be?

i know exactly what you mean but ...

I don't even know

[trickedcarbine]

HP works on these things for a living, so when he shoots that kinda stuff out there it makes me wonder what he is thinking