OPS .67 nitro marine engines help
09-16-2011, 08:57 AM
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OPS .67 nitro marine engines help
I just received a boat that has twin OPS .67 nitro marine engines. I need to know what nitro percentage the beasts run, and if anyone has a manual that I could view that would be even better.
09-16-2011, 12:33 PM
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RE: OPS .67 nitro marine engines help
10 to 60% Nitro ... it's up to your wallet :-)
With 20 > 30% you're in the ball-park.
But be sure of MINIMUM 15% (12/3) oil .. (I prefer 18% (15/3) for bronze-bushed conrods)
Even new OPS'es don't come with a manual ,
so fire away here with all your questions.
With 20 > 30% you're in the ball-park.
But be sure of MINIMUM 15% (12/3) oil .. (I prefer 18% (15/3) for bronze-bushed conrods)
Even new OPS'es don't come with a manual ,
so fire away here with all your questions.
09-16-2011, 01:12 PM
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RE: OPS .67 nitro marine engines help
Thanks, how about cool power 30% heli fuel? It's 22% synthetic oil. Traxxas 33% is 16% oil. I stock both of these. Is 22% too much?
09-16-2011, 01:25 PM
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RE: OPS .67 nitro marine engines help
DONT run the Traxxis for what ever reason i have lost two engines while running that fuel and i have been running nitro for 25 years in my larger marine engines i run 20% -30% nitro as there is noreason to go higher the heli fuel is ok but fuel with 16% -18% oil works best
09-16-2011, 03:39 PM
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RE: OPS .67 nitro marine engines help
O'Donnell-boat-fuel is 17% all synthetic ... I'm not fond of pure synthetics .. ,
I prefer 2 > 3% Castor as a 'safe-guard' , that didn't hurt my engines in 50 years.
On your side of the pond .. buy [link=http://www.klotzlube.com/proddetail.asp?prod=BC%2D175%5FPint&cat=8]Klotz-BeNol[/link] and add 2%.
I prefer 2 > 3% Castor as a 'safe-guard' , that didn't hurt my engines in 50 years.
On your side of the pond .. buy [link=http://www.klotzlube.com/proddetail.asp?prod=BC%2D175%5FPint&cat=8]Klotz-BeNol[/link] and add 2%.
09-16-2011, 04:07 PM
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RE: OPS .67 nitro marine engines help
You could order some 30% Grimracer fuel. That is 23% oil, full synthetic.
I have used Omega 25% and 40% with good results. That is 17% oil with both caster and synthetic.
I have used Omega 25% and 40% with good results. That is 17% oil with both caster and synthetic.
09-16-2011, 04:55 PM
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RE: OPS .67 nitro marine engines help
ORIGINAL: HendricX
O'Donnell-boat-fuel is 17% all synthetic ... I'm not fond of pure synthetics .. ,
I prefer 2 > 3% Castor as a 'safe-guard' , that didn't hurt my engines in 50 years.
On your side of the pond .. buy [link=http://www.klotzlube.com/proddetail.asp?prod=BC%2D175%5FPint&cat=8]Klotz-BeNol[/link] and add 2%.
O'Donnell-boat-fuel is 17% all synthetic ... I'm not fond of pure synthetics .. ,
I prefer 2 > 3% Castor as a 'safe-guard' , that didn't hurt my engines in 50 years.
On your side of the pond .. buy [link=http://www.klotzlube.com/proddetail.asp?prod=BC%2D175%5FPint&cat=8]Klotz-BeNol[/link] and add 2%.
10-10-2011, 04:41 PM
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RE: OPS .67 nitro marine engines help
Red Max 50=60% nitro if you are racing an OPS 21-80. Make sure you get MARINE fuel,car or plane fuel will make your rod disintegrate for sure. I'm everything OPSI love them for the money.
02-23-2014, 02:20 PM
#11
DONT run the Traxxis for what ever reason i have lost two engines while running that fuel and i have been running nitro for 25 years in my larger marine engines i run 20% -30% nitro as there is noreason to go higher the heli fuel is ok but fuel with 16% -18% oil works best
Neil. remind me not to do shots at your place!
02-25-2014, 10:29 AM
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08-23-2017, 08:39 AM
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Been using it for years. Idles nice and cleans out on the top end.
