Castrol TTS

[monty_jon]

Is there any difference between

[betanz]

On the outside of the bottle it says that it is a "new and improved" kinda thing but I have not noticed any difference in the "new" TTS.

Cheers Brad

[paul w]

looking at the CASTROL website, it looks like a slight re-brand.

http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=9021708&contentId=7040552

[monty_jon]

Cheers guys, I started to think I

[dgshannon]

looking at the CASTROL website, it looks like a slight re-brand.

http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=9021708&contentId=7040552

Interesting that they specify only up to 50:1 mix. What happens up in the 80:1 world of a modern trials bike?

[monteberg]

it states UPTO 50:1 so if your running 80:1 you will be fine remember with ratios ??:1 more is less ,eg.80:1=1.25% and 50:1=2% hope this is a help

[neil king]

it states UPTO 50:1 so if your running 80:1 you will be fine remember with ratios ??:1 more is less ,eg.80:1=1.25% and 50:1=2% hope this is a help

So it's no good at 45:1? THAT DOESN'T MAKE ANY SENSE!

[monty_jon]

it states UPTO 50:1 so if your running 80:1 you will be fine remember with ratios ??:1 more is less ,eg.80:1=1.25% and 50:1=2% hope this is a help

Up to 50:1 means anything between:- 1:1 to 50:1

so according to Castrol its not suitable for 80:1

I run mine at 50:1 anyway

[dgshannon]

so according to Castrol its not suitable for 80:1

Exactly how I read it, as well.

[duggan]

I've been running about 80ml per 5litres of fuel around 60:1 of tts for a few years with no problems.

[jse]

I've been running about 80ml per 5litres of fuel around 60:1 of tts for a few years with no problems.

Although it's recommended up to 50:1, I think this is for high-speed heavy-load applications

and Trials, of course, is a unique use with less severe conditions.

I too have run TTS for years at 70:1 and have had no problems or issues.

Jon

[old trials fanatic]

I think it's just the manufacturers covering their corporate bottoms as with everything else nowadays they need to cover themselves in case some dimwit trys to sue them for damage to his engine. Just checked the PJ1 oils that i sell and they state the same up to 50:1 caveat as well.

[dadof2]

Before you make up your mind what oil and ratio to run I suggest you read:

Two stroke tuners handbook by Gordon Jennings - Do a search and you can read it on web - no need to buy

Two stroke performance tuning by A Graham Bell - You will have to buy this, published by Haynes of car manual fame.

Note that the oil suppliers often use terms like "up to 80:1" and "follow manufacturers recommendations".

I would never go leaner than 32:1, sure with modern oils and engine materials you are unlikely to seize even at 80:1 but less oil means more wear. A good film of oil between piston and barrel is very important to conduct heat out of the piston to control piston crown temperatures.

Cheers

[monty_jon]

Before you make up your mind what oil and ratio to run I suggest you read:

Two stroke tuners handbook by Gordon Jennings - Do a search and you can read it on web - no need to buy

Two stroke performance tuning by A Graham Bell - You will have to buy this, published by Haynes of car manual fame.

Note that the oil suppliers often use terms like "up to 80:1" and "follow manufacturers recommendations".

I would never go leaner than 32:1, sure with modern oils and engine materials you are unlikely to seize even at 80:1 but less oil means more wear. A good film of oil between piston and barrel is very important to conduct heat out of the piston to control piston crown temperatures.

Cheers

Bell

[jse]

Before you make up your mind what oil and ratio to run I suggest you read:

Two stroke tuners handbook by Gordon Jennings - Do a search and you can read it on web - no need to buy

Two stroke performance tuning by A Graham Bell - You will have to buy this, published by Haynes of car manual fame.

Note that the oil suppliers often use terms like "up to 80:1" and "follow manufacturers recommendations".

I would never go leaner than 32:1, sure with modern oils and engine materials you are unlikely to seize even at 80:1 but less oil means more wear. A good film of oil between piston and barrel is very important to conduct heat out of the piston to control piston crown temperatures.

Cheers

Both books are excellent and I have them in my technical library. Jennings' book is still probably one of the best and a good starting point for gaining a basic understanding of high performance engine design. Both, however, do not incorporate technological advances that have occured since 1983 (Bell) and in Jennings' case, 1973, and are oriented towards high-RPM, maximum load engine operating conditions rather than the low-RPM, variable load, on-off throttle operating conditions we experience in Trials.

Just as I would choose a different oil and ratio for the roadrace engines I built, compared to, for instance, the Motocross, Supercross and shifter kart engines, I would choose a different oil and ratio for Trials applications. I run (full-synthetic) 50:1 in my air-cooled Trials bikes and 70:1 in my liquid-cooled model and have monitered all of them carefully for problems, of which there have been none relating to lubrication.

Around 80:1 seems to be the general choice for most Trials riders running the 125cc and up displacement engines, but I also agree that you should run the oil and ratio that you feel comfortable with as I've rarely seen an engine experience mechanical damage from too much oil, only performance deterioration.

Jon