Revving stock clone

[r_chez_08]

Just wondered how high you guys would rev a stock honda gx or a clone?

 

[freakboy]

3600

 

[mike75925]

i doubt there is an average number of revs before they float a valve or other catastrophic failure

 

[r_chez_08]

I didn't expect there to be an average number of revs
before they blow. Just wondered what you would rev them to. I wouldn't rev much higherthan 4000 rpm but some people say 4500-5000.

 

[freakboy]

well this is diff but i rev my oppy to about 4500 thats it till i get it hooked to something for resittance... but for a clone id rev it as much as i want waiting for it to blow..

 

[Doc Sprocket]

Stock? ...'Till it bounces off the governor...

 

[1992suburban]

clone you can HOLD WIDE OPEN the springs will limit the RPM to around 5600 rpm

IT WONT BLOW unless there is something else wrong..

 

[BriggsTwins]

we need proof!

 

[1992suburban]

proof of what???

 

[1992suburban]

i posted a vid. of a stock clone spinning 5700 if memory serves.. as showed on my Mychron tach

 

[BriggsTwins]

oooo were is it?

 

[1992suburban]

HOLD ON

lemme find it...

 

[1992suburban]

http://s42.photobucket.com/albums/e325/06GTCOUPE/?action=view&current=1102091600.flv

 

[1992suburban]

Xactly

 

[BriggsTwins]

sweet

 

[1992suburban]

yeah, it wont hurt it man.. remove the gov the stock springs wont let it explode.

they race them all over the country like that

 

[r_chez_08]

You 1000%. Sure they won't blow? I'm worried about flywheel at those speeds. Actually thinking about it what reason hasthe flywheel gott to blow?

 

[Kaptain Krunch]

Flywheel explosions dont happen with an un-modded flywheel and stock (besides governor) engine, and you definitely dont need to worry about it at 5700rpm. Its the idiots that go lightening their flywheels that get people scared about flywheel explosions.

If your that worried you can make a scatter shield but its really not necessary.

 

[Russ2251]

i rev my oppy to about 4500 thats it till i get it hooked to something for resittance...

Resistance equates to loading.
Loading reduces induced harmonics (from combustion pulses). Unchecked harmonics is one of the reasons why an engine can destroy itself.
Loading an engine acts as a kind of shock absorber.
Free running an engine at WOT is far more destructive than running at WOT with a load/resistance.

 

[Russ2251]

Resultant destruction of free running Tecumseh 2 cycle (note 'bullet hole' in extreme right center of 2nd pic):