Tuned pipe length

[zorrow]

I would like to ask a recomended starting length for a OS .21 with a 180 degree header and tuned pipe?

measured from the glow plug to widest part of pipe.

Thank you to all replies

Steve

 

[shoboat]

Steve,

The measurement will depend on your header length. We usually start with a 5" header

so the measurement will be aprox. 3" from the glow plug or 8" centerline through the

header to the pipe at the widest point. We go shorter,but we use less cup on the

propeller that way. Longer pipe more Torque,shorter pipe more RPM. The pipe,% of Nitro,

propellers,and boat set up will all have a lot to do with the optimum pipe length.

Good Luck,

Mark Sholund

 

[RCUK John]

I would like to ask a recomended starting length for a OS .21 with a 180 degree header and tuned pipe?

measured from the glow plug to widest part of pipe.

Thank you to all replies

Steve

Look at the following link (and if it does not redirect you then "Cut & Paste" :

http://www.nimrifmodels.co.uk/setup.html

 

[Rigged]

I would like to ask a recomended starting length for a OS .21 with a 180 degree header and tuned pipe?

measured from the glow plug to widest part of pipe.

Thank you to all replies

Steve

Look at the following link (and if it does not redirect you then "Cut & Paste" :

http://www.nimrifmodels.co.uk/setup.html

nice link... now to convert cm into inches :unsure:

 

[zorrow]

I would like to ask a recomended starting length for a OS .21 with a 180 degree header and tuned pipe?

measured from the glow plug to widest part of pipe.

Thank you to all replies

Steve

Look at the following link (and if it does not redirect you then "Cut & Paste" :

http://www.nimrifmodels.co.uk/setup.html

nice link... now to convert cm into inches :unsure:

21 cm = 210mm = 8.25"

24 cm = 240mm = 9.8"

very good info

steve

 

[RodneyPierce]

I would like to ask a recomended starting length for a OS .21 with a 180 degree header and tuned pipe?

measured from the glow plug to widest part of pipe.

Thank you to all replies

Steve

Look at the following link (and if it does not redirect you then "Cut & Paste" :

http://www.nimrifmodels.co.uk/setup.html

nice link... now to convert cm into inches :unsure:

1 centimeter = 0.393700787 inches Multiply # of cm's by .394= inches

 

[Dan_Cousin]

an easier thing to remember is that there are exactly 2.54cm per inch.

nice short number.

 

[RodneyPierce]

an easier thing to remember is that there are exactly 2.54cm per inch.

nice short number.

There we go! i couldnt remember that right off the top of my head, but that is what I was lookign for! Thanks Dan for reminding me pal! Rod