Novarossi motors and castor fuel!

[Walt Barney]

What if we have been running pure synth. and decide on a change to add caster what if any thing do you do???

Walt Barney

 

[RodneyPierce]

Hey Walt, you can add Castor to your fuel with no issues. Just add a couple ounces to your gallon jug.

 

[57fairlane500]

We have been adding Klotz BeNOL. The important factor is that it mixes with the "high" nitro content of our fuel.

http://www.klotzlube.com/proddetail.asp?prod=BC-175_Pint

 

[dwilfong]

http://sigmfg.com/cgi-bin/dpsmart.exe/IndexMiscellaneousF.html?E+Sig

http://sigmfg.com/cgi-bin/dpsmart.exe/DetailProduct.html?L+Sig+qqfh8780+_Dimagefile_02SIGCO001_2ehtml_01uzup_02N_01num_02SIGCO001_01

 

[Walt Barney]

http://sigmfg.com/cg...ousF.html?E Sig

http://sigmfg.com/cg...m_02SIGCO001_01

I know that I can just add the castor to the fuel but if the engine has never seen castor what change in the engine can I expect, such as needle setting and if I need to install new brgs, before running.

Walt Barney

 

[Norm Doerr]

On the engines losing fit, does the head button "snap" in the liner and or have a tight fit? If so what happens when that hunk of aluminum get hot? ANS: it expands and does the opposite of a liner squeezer and becomes a liner "expander".

 

[dr gary turner]

We have been adding Klotz BeNOL. The important factor is that it mixes with the "high" nitro content of our fuel.

http://www.klotzlube.com/proddetail.asp?prod=BC-175_Pint

Agree!!!!!!!!!!! Have been using Benol for years, It does mix with high nitro. Some castors will not. Buy a gal at a time it will last.

 

[dr gary turner]

The real question is why does castor work??????????????? A well known SAGE of Model Boat racing told me years ago he did some tests. Just think about that........... actually did some tests. It has to do with castors flash point. Dick Jones may want to comment. BTW Dick, talked to my Dad this AM and the Corn is tasseling in Iowa.

 

[Joe Warren]

Mike Veta and Bll Mcgraw done dyno test on this topic years ago in Bills shop with a high dollar dyno Mcgraw owned and with ex temp sensors For every ounce of additional castor added to the fuel the exhaust temp at the header measuring point dropped 100 degrees. this was under load at speed on Nova rossi 21 long stroke and short stroke engines. Bills Only race & testing fuel he ran was Odonnell Fuel. There was No Other.

 

[Jack ODonnell]

On the engines losing fit, does the head button "snap" in the liner and or have a tight fit? If so what happens when that hunk of aluminum get hot? ANS: it expands and does the opposite of a liner squeezer and becomes a liner "expander".

So true!!

 

[Norm Doerr]

On the engines losing fit, does the head button "snap" in the liner and or have a tight fit? If so what happens when that hunk of aluminum get hot? ANS: it expands and does the opposite of a liner squeezer and becomes a liner "expander".

So true!!

So if the button expands too fast and too big, before the water can cool it to control expansion; the liner will expand with it losing bump. If one adds castor to the mix the button will not expand as fast or large and the water will have enough time to catch up and adequately cool the entire assembly thus no over expansion of the liner and no loss in bump because the button did not get big enough to open the liner up. Thoughts?

 

[dr gary turner]

No fuel like O Donnell. Still have about 35-40 gals in the garrage. I guess when it is gone I might be gone.

 

[dwilfong]

Mike Veta and Bll Mcgraw done dyno test on this topic years ago in Bills shop with a high dollar dyno Mcgraw owned and with ex temp sensors For every ounce of additional castor added to the fuel the exhaust temp at the header measuring point dropped 100 degrees. this was under load at speed on Nova rossi 21 long stroke and short stroke engines. Bills Only race & testing fuel he ran was Odonnell Fuel. There was No Other.

so with 6oz of castor in my mix I have 0 deg ex temp :huh:

 

[Brian Sorgente]

Mike Veta and Bll Mcgraw done dyno test on this topic years ago in Bills shop with a high dollar dyno Mcgraw owned and with ex temp sensors For every ounce of additional castor added to the fuel the exhaust temp at the header measuring point dropped 100 degrees. this was under load at speed on Nova rossi 21 long stroke and short stroke engines. Bills Only race & testing fuel he ran was Odonnell Fuel. There was No Other.

so with 6oz of castor in my mix I have 0 deg ex temp :huh:

Wild guess but something tells me the curve probably wasnt that linear :lol:

 

[Jack ODonnell]

No fuel like O Donnell. Still have about 35-40 gals in the garrage. I guess when it is gone I might be gone.

 

[dwilfong]

so come on Jack spill the beans is there some castor in that mix.

 

[Jack ODonnell]

so come on Jack spill the beans is there some castor in that mix.

Hi Dave; The original O'D fuel had no castor oil, dont know what is in it now. J

 

[Grimracer]

Same as before Jack.. the formula has not changed..

Grimracer

 

[Jack ODonnell]

Same as before Jack.. the formula has not changed..

Grimracer

I find that hard to believe. J

 

[glenng]

A few years back I ran a 73 Pak sport 60 in Utah with a O.S. 81 on 30% ODonnels. Not a true 1/8 scale as the pipe came out the back of the cowl. The boat would come in with a nice heavy layer of golden brown oil all over the inside of the verticals and rear deck- a friend called it the Exxon Valdez. Really fun boat to run. I do not know what's in Jack's fuel- just that there's enough lubricant to keep things alive.