Shaved Heads?

[boondockin]

Does shaving heads down on a 2 stroke help much in the power department or just make ya put more expensive gas in?

 

[Deano670]

Depends, what other mods are you planning on doing??

 

[boondockin]

Depends, what other mods are you planning on doing??

What would be the best thing to do with shaving the heads? I just want to go fast

 

[SLEDBUNNYRACING]

You need a bit more than than just the shaved heads.
The stock 2001 - 800 RMK I have ran roughly 140 HP stock.
With porting and shaved heads and 50/50 race fuel puts the Horse Power at roughly 160.

 

[Deano670]

What would be the best thing to do with shaving the heads? I just want to go fast

Well on those old 670's there is some hp to gain, but it cost's some money. you want to go fast i recommend at least a GOOD port job, trim the head, pipe it, shorty intake(scrap the oil inj) bore and flow the carbs. If you want to get serious tunnel port it aswell or head straight for the 740 program.

 

[SLEDBUNNYRACING]

Along with the sled head shaved...had my head shaved for a couple of years...drank lots of High Test and always seemed to go faster...lol...

 

[TylerG]

Along with the sled head shaved...had my head shaved for a couple of years...drank lots of High Test and always seemed to go faster...lol...

New Nickname for you.... Slick....... thats an old pic, that looks like what? 1956?

 

[polarice]

yeah didnt ya see the tube of bryl cream hanging out his back pocket

 

[SLEDBUNNYRACING]

It feels like 1956...no hair...no cream...lol...

yeah didnt ya see the tube of bryl cream hanging out his back pocket

 

[Deano670]

Along with the sled head shaved...had my head shaved for a couple of years...drank lots of High Test and always seemed to go faster...lol...

Looks like you at that time were riding a LIGHT WEIGHT CHASSIS aswell

 

[boondockin]

Well on those old 670's there is some hp to gain, but it cost's some money. you want to go fast i recommend at least a GOOD port job, trim the head, pipe it, shorty intake(scrap the oil inj) bore and flow the carbs. If you want to get serious tunnel port it aswell or head straight for the 740 program.

Do you think i'd be better off to sell what ive got built and work my ass off and go for a rev? or would it be pretty wicked if i built her up?

 

[Deano670]

Well anything gets better with MORE POWER but the problem with that sled as far as a mod goes is the chassis.(not knockin) The f chassis is heavy and the geometry is all wrong, unless your goin drag racing. The engine however in the right chassis ROCKS for a sweet light weight mod as the 670 with some fat trimmed off the edges only weighs 65-70lbs. if it were me i'd find an s-chassis or zx even an old wedge or gen 2 polaris chassis, build your engine and lightweight the chassis.

 

[boondockin]

Well anything gets better with MORE POWER but the problem with that sled as far as a mod goes is the chassis.(not knockin) The f chassis is heavy and the geometry is all wrong, unless your goin drag racing. The engine however in the right chassis ROCKS for a sweet light weight mod as the 670 with some fat trimmed off the edges only weighs 65-70lbs. if it were me i'd find an s-chassis or zx even an old wedge or gen 2 polaris chassis, build your engine and lightweight the chassis.

old wedge?

 

[dooryder]

I got an wedge polaris chassis for sale, Its got a triple bulk head, you can make it a real climber, pm for details

 

[Deano670]

It will look like the 97, 98 rmk chassis. They work well in the steep and deep. IMO

 

[dooryder]

theya re older then 97, the 650 triple chassis i have is a 88

 

[BIGFOOT]

Looks like you at that time were riding a LIGHT WEIGHT CHASSIS aswell

... Before riding with 1 ton , Maybe ??...