OzVMX Forum

Clubroom => General Discussion => Topic started by: mudguard on May 28, 2010, 08:46:19 pm

Title: Whats your choice? Fuel, Oil & Ratio
Post by: mudguard on May 28, 2010, 08:46:19 pm: Thought I'd throw this one out there, It's probably been here before! Everyone has their favourites
Whats your choice? What works for you? :)

1: Fuel: Ethanol Blend, Unleaded 91, 95 Octane, or 98 Octane
2: Product: Shell, BP, Caltex, Ect.
3: 2 Stroke oil: Motul, Bell Ray, Silkolene, Ect.
4: Ratio Mix: 20:1, 25:1, 33:1, Ect
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: holeshot buddy on May 28, 2010, 08:50:24 pm: BP ultimate 98
motul 800
32 to 40 to1
depends a lot on the bike
and capacity ;)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: dalesween on May 28, 2010, 08:54:24 pm: OH boy,this will be interesting, by the way i use BP 98octane with Motul 800 @ 33 to 40:1 in my Yamaha IT250 with an NGK BR9EG and it starts and runs sweet.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Stevo17 on May 28, 2010, 08:55:08 pm: Mobil 8000
Bel-Ray H1R
30:1 in 250cc bikes
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Graeme M on May 28, 2010, 09:04:46 pm: Caltex's Vortex 98
Motul 800 at 30:1 for the 05 YZ125
Castrol Active at 20:1 for the 75 RM125

I remember the long thread on oil ratios and have been running the RM on 20:1 for the past year as a result of Lozza's views. Just pulled the top end for a freshen up before CD7 and VERY impressed with the internals. Nice oil film, very clean piston crown, minimal wear. It'll get rings but only cos I have heaps of spares and need to use them! Before that I was running the RM on 35:1 with Motul 800 and the wear was rather more than I expected.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Stevo17 on May 28, 2010, 09:09:45 pm: I totally agree Graham - after that long thread on oils I have been using Bel-Ray H1R at 30:1 in my 250's - it is much thinner than the Motul 800 and seems to burn cleaner. I am happy with it - others have different views
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: LWC82PE on May 28, 2010, 09:12:15 pm: http://ozvmx.com/community/index.php?topic=8661.0

http://ozvmx.com/community/index.php?topic=8662.0

http://ozvmx.com/community/index.php?topic=2533.0

18 or 20 to 1
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldyzman on May 28, 2010, 09:16:00 pm: 30:1 Motorex Speedmix BP98, sometimes i put Shell LL100 racefuel instead of 98, depends on the bike.
Brett
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Nathan S on May 28, 2010, 09:28:10 pm: Caltex Vortex 98 (because I can buy it locally).
Motul 800 (because I can buy it locally).
20:1 (because I want my engines to last).
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: TT5 Matt on May 28, 2010, 09:33:54 pm: as Looza says 20 to 1,the motor will run cooler,less fiction,less wear and more power dyno proven cause oil burns along with the fuel ;) ;D
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Billet YZ on May 28, 2010, 09:42:38 pm: BP 98
Castrol TTS at 25:1
Don`t go throwing rocks at me for using the TTS but i swear by this stuff, i have used this oil in all my bikes since the early 80`s and every engine has been like brand new when i pull them down for a freshen up. Never had a bike destroy itself on this oil. Peter.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: firko on May 28, 2010, 11:11:05 pm: Caltex Vortex or BP 98, Motul 800, 20:1 in all the bikes, Euro, Japanese, modern or vintage.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: SAABCOMBI on May 28, 2010, 11:20:07 pm: R30, BP98, 30:1, but changing to 20:1, my father always told me 25:1, and in early days of racing that is what l used, because he was an A Grade mechanic, and dotor of Mechnic. so l thought he new best.
so l am going to ask a dumb question, 20:1 ,ratio, 5lt of fuel to how much oil.
When l mixed 30;1, it was 333mls to 10lt. of fuel.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: TT5 Matt on May 28, 2010, 11:32:50 pm: 250 ml oil to 5l fuel
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Freakshow on May 29, 2010, 01:45:09 am: I cant get my bikes to run on 20:1 no matter what i do, 25 to 1 runs sweet , so after much F about over the years im staying there. TTS castrol or similar, not into the fancy stuff.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Power Stand on May 29, 2010, 01:48:08 am: BelRay 40:1, 100% synthetic oils, raced desert on MC1+ back in the 80ies at 50:1, jet right no problems. Oil lubricates, fuel keeps engines cool, oil burns at a higher temp. More fuel, right jetting with good lubricant = good engine/ preformance.
BP ultimate 98

Blend oils are shite,,,,,,,,,,,,

If you have no lumpy carbon build up, its a good oil.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: monaro308 on May 29, 2010, 01:48:17 am: BP ultimate 98
Shell M or its latest name (ran it in karting for 13 yrs ,rotary valve and piston port engines@15:1 doing 17,500-18,000 rpm
20:1 always have in bikes
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Power Stand on May 29, 2010, 02:20:34 am: Quote from: LWC82PE on May 28, 2010, 09:12:15 pm
http://ozvmx.com/community/index.php?topic=8661.0

http://ozvmx.com/community/index.php?topic=8662.0

http://ozvmx.com/community/index.php?topic=2533.0

18 or 20 to 1
Well after reading that I should up the cc of oil, being a product of the 80ies and following oil manufacture recommendations and not having any problems (while using BelRay) in 10 years of racing, you are only as good as the next punter. :(

Only a fool lives in denial so up the CC I will. OK let me rephrase that, ignorance doesn’t mean you are stupid, it means you are not aware. Stupid is knowing but not doing something about it. :o ;)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: jimg1au on May 29, 2010, 06:33:16 am: 1973 cr250m
methenol
20:1 shell M
50ml of assertone
never fouls plugs and can out gate yz400s and rm370s
1972 cr400
caltex 98
tts 20:1
dosent foul plugs
tt500
methenol streight
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldfart on May 29, 2010, 08:57:11 am: Caltex Vortex 98 as I find Shell fouls my plugs.
Motul 800
Castrol R 30 both mixed at 20-1

David # 46 it is a percentage factor ie 20-1 = 20 litres of fuel / 1litre of oil or 30 litres of fuel / 1 litre of oil
10 .5
5 .25
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: LWC82PE on May 29, 2010, 09:21:36 am: Quote
Well after reading that I should up the cc of oil, being a product of the 80ies and following oil manufacture recommendations and not having any problems (while using BelRay) in 10 years of racing, you are only as good as the next punter. :(

Only a fool lives in denial so up the CC I will. OK let me rephrase that, ignorance doesn’t mean you are stupid, it means you are not aware. Stupid is knowing but not doing something about it. :o ;)

Welcome to the 20 to 1 club! your bikes will love you for it. :D :)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: SAABCOMBI on May 29, 2010, 09:36:57 am: Thanks fellows you are a great help, l am starting my new toy today, and l will see you on the starting line this year, queens birthday weekend at cambelltown Victoria. Thanks again.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: KB171 on May 29, 2010, 09:45:58 am: Air cooled 74 CR 250/125,79CR250
Catex Vortex
Castrol TTS 25-1
VB 4.6%
The only plugs i seem to go through are the ones i have to give to these Yamaha blokes
that keep pushing their back to the pits ;)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Hoony on May 29, 2010, 09:50:48 am: CR250 (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 40:1
======================
CR500 (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 50:1
======================
KTM300 EXC (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 50:1 (Recommended by KTM)

Depends on Bike, if i had an air cooled bike (or 125cc) i would be running 30:1 maybe even 25:1.

2 weeks ago i pulled the top end of the 500 and it was in very good condition, just put a new set of rings in. no carbon build up and piston wear was non existant. its done probably about 4 meetings and 6 ride days since new.

Like BilletYZ i ran Castrol TTS @ 40:1 for 20 + years until 2005 (when i got the KTM) and changed then, i found the CR250 & 500 ran a lot cleaner and responded better on the motorrex.

at the end of the day, run what works best for you and your bike, its a piece of mind thing also.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: bazza on May 29, 2010, 10:09:00 am: BP98 / av gas @50/50 Motul 800 40.1 Bore and piston allways sweet and easy start and running
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: TeeBone on May 29, 2010, 10:56:16 am: BP 98

Bel-Ray MC1

50-1 - runs sweet and looks fine inside!
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: tony27 on May 29, 2010, 11:11:40 am: My sherco

BP ultimate
Motorex crosspower 2t
Ratio 80:1 even I'm not game to try the 100:1 some guys do :o
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: floberts on May 29, 2010, 05:35:18 pm: 1982 PE175z
98 RON any brand
Castrol TTS @ 25:1

The manual says 20:1 but I think with modern oils I can lean it out a touch.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: mainline on May 29, 2010, 06:29:40 pm: Quote from: Billet YZ on May 28, 2010, 09:42:38 pm
BP 98
Castrol TTS at 25:1
Don`t go throwing rocks at me for using the TTS but i swear by this stuff, i have used this oil in all my bikes since the early 80`s and every engine has been like brand new when i pull them down for a freshen up. Never had a bike destroy itself on this oil. Peter.

I seem to remember TTS being the oil to use in the 80's, it came in a Works ;D metal can while the Super TT (cheaper version) came in a plastic bottle.

I was in Super Cheap today and they had 1l of TTS for $27 and 4l for about $80? I think. Seemed like good buying but I wasn't sure if anyone was still using the stuff.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: dkupf on May 29, 2010, 06:30:17 pm: I have use the old TTS and BP ultimate at 30 to 1 :) Darcy
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: brent j on May 29, 2010, 06:53:42 pm: In my Suzuki TM125 I run BP Ultimate with Shell racing M oil. The oil pump is doing the "oiling" and I pull the pipe off every so often and have a look in the cylinder. So far I'm impressed with the lack of wear and the cleanliness.

In the 70's I ran my TM 125 for nearly two years on Shell super two stroke and it never even had a set of rings replaced, never missed a beat either.
The current TM smokes a little but starts easily and is quite happy idling for 10 minutes at a time.

Brent
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: 090 on May 30, 2010, 07:53:17 am: Caltex first choice, BP second.
TTS as well 25:1
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Power Stand on May 30, 2010, 06:35:13 pm: Quote from: LWC82PE on May 29, 2010, 09:21:36 am
Quote
Well after reading that I should up the cc of oil, being a product of the 80ies and following oil manufacture recommendations and not having any problems (while using BelRay) in 10 years of racing, you are only as good as the next punter. :(

Only a fool lives in denial so up the CC I will. OK let me rephrase that, ignorance doesn’t mean you are stupid, it means you are not aware. Stupid is knowing but not doing something about it. :o ;)

Welcome to the 20 to 1 club! your bikes will love you for it. :D :)

Well the mind still boggles, ,,,,,,,,,,,,,,now, do I run the lower viscosity oils (like current oil I am using Belray Si-7) at 20:1 or switch back to MC1 that runs OK at 32~50:1 or best at 40:1.

Now it’s been defined I guess it’s a question of Low or High viscosity oils.

Whats better?
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Hoony on May 30, 2010, 06:41:05 pm: run what works best for you in your experience over the years, it a personal preference thing i reckon.

How the 500 restore going, all finished? if so, where the latest pics mate 8).
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Curly3 on May 30, 2010, 07:01:05 pm: A mate & I both bought new KX 250 A5's, he ran Belray synthetic and I used good old Castrol Super 2 Stroke.
Both did about the same work and we pulled them down at the same time, his was totally rooted ( chrome bore ) and mine was like new, until I grabbed the wrong fuel container at a meeting at Fairbirn Park, I was on the fly for a few laps.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: squirtmoto on May 30, 2010, 07:21:09 pm: I used to sware by Valvolene 2stroke racing oil ;), used it up until it was as rare as rocking horse shit. All my mates used Castrol TT and I found that when we pulled them down, theirs was full of carbon build-up on the piston crown and head also the bottom end was dry. Mine had a light tann on the head and piston that could be wiped of with a rag and the bottom end had a film of oil coating everything.

When I couldn't find it anymore I switched to Castrol TTS syn, I always found that a half used bottle always smelt like Amonia, I spoke to a industrial chemist mate of mine who tested the oil for me and yes it had a hight concentration of Amonia :o, I guess that accounted for the failure of several bottom ends and pitting of main bearings caused by the acid of the Amonia.

I now use MOTUL 800 @ 40:1 with BP Ultimate, havn't had any drama's to date :)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: JohnnyO on May 30, 2010, 08:22:54 pm: I'm the same as you Bill.. Motul 800 and BP ultimate at 40:1 and never had a failure.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: montynut on May 30, 2010, 08:42:36 pm: Squirtmoto Ammonia is caustic not acidic. I use Caltex 98, Octane booster and TTS 25:1
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Stan S on May 30, 2010, 10:23:33 pm: I quite like the old Rock Oil ad's. Not so sure about the oil.

(http://i991.photobucket.com/albums/af39/gf079/Gregs%20pictures/rockoil-alt.jpg)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Lozza on May 30, 2010, 10:46:12 pm: Actualy Stan that wasn't oil pouring out of the bottle in the ad, it was honey that was warmed up by the young lass rubbing the jar between her thighs. ::)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: TT5 Matt on May 30, 2010, 10:48:32 pm: we all like that ad she's got good points too
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Power Stand on June 01, 2010, 12:45:54 am: Quote from: Hoony on May 30, 2010, 06:41:05 pm
run what works best for you in your experience over the years, it a personal preference thing i reckon.

How the 500 restore going, all finished? if so, where the latest pics mate 8).

Cheers Hoony, mate I posted a reply here, what about youself,,,,are you getting some ride time :)

http://ozvmx.com/community/index.php?topic=11939.0
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Lozza on June 10, 2010, 12:58:21 pm: HERE (http://www.maximausa.com/tech-tips/oil-migration.php) is the latest reseach from Maxima.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: mx250 on June 10, 2010, 01:33:16 pm: Quote from: Lozza on June 10, 2010, 12:58:21 pm
HERE (http://www.maximausa.com/tech-tips/oil-migration.php) is the latest reseach from Maxima.
You're not 'stirring the possum', 'clouding the waters' are you Lozza? ::).

"Maxima Recommends: Oil/gas ratio must vary according to anticipated use:

* Many lubricant producers recommend the same gas/oil ratio for all types of riding and racing. Maxima feels this approach is too general, and urges motorcycle owners to make their decisions based on the above research.
* All of the above measurements are approximations, and should not be considered 100% accurate. They are meant to provide the browser with a basic understanding of two-cycle engine lubrication characteristics."
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: ianscr250 on June 10, 2010, 10:06:11 pm: now if i new the mixes and settings for methanol i would run that as we sell it in volume at work
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: LWC82PE on June 10, 2010, 10:44:47 pm: Powerstand - I would recommend/use the Belray Si7 at around 20:1. No real need to spend the extra $ on MC1. I can tell ya im a lot more comfortable knowing theres more lubricating oil than less and i would rather listen to engine builders/tuners than oil manufacturers.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: VMX247 on July 10, 2010, 04:18:38 pm: bump
any info from the far north Queenslander's on Sucrogen for bikes.

http://www.v8supercarevents.com.au/Townsville/news/news029.htm
Ethanol
Australia’s leader in ethanol
Now known as Sucrogen BioEthanol it is one of two major Australian producers of ethanol products, supplying over half of the domestic Food & Beverage and Industrial market as well as supplying the growing fuel market in Australia.

Sucrogen BioEthanol produces its ethanol (ethyl alcohol) by fermenting molasses, a by-product of sugar production. Sucrogen BioEthanol’s Sarina Distillery in Queensland produces 60 million litres of ethanol per year.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Rossvickicampbell on July 10, 2010, 06:42:34 pm: just opened up my YZ 360 after two years (but not that many meetings but one occassion of really really hot) - run Silkolene Comp 2 + at 40:1 with BP Ultimate (although looking at changing to Vortex just coz I dont like BP as a company anymore >:() and minimal carbon on top of the piston, no lumpy buildup, not much blow by and oil evrywhere it was needed. As others have said - find what your happy with and there you go.

Dont dispute what Lozza was saying but my bike runs reliably and I hate playing with jetting so don't want to change.

cheers
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: monaro308 on July 10, 2010, 08:00:17 pm: We've been testing E85 at work for over a year now and it eats into normal fuel lines ie metal,rubber.
Fuel pumps,any rubber and fuel lines (stainless) need to be specifically ethanol compatable.
The C/dore VE series2 due out in October will be E85 compliant and has a flex fuel sensor...almost like a breath alyser and detects the amount of ethanol in the fuel and adjusts the timing and fuel maps to suit the fuel range from unleaded to 85% ethanol.
Power wise...the same and maybe a little more,but uses anywhere between 25-40% more.
It is a bitch in cold conditions(on a non computerised internal combustion engine) to start.
If the goverment can keep their dirty greedy mitts off the excise tax (reported to be about 12cents per litre)
it will work out cheaper to run even though you use more...plus its renewable energy and we will never run out and make more jobs,plus export because of Australia's ideal conditions to grow sugar cane.

Thats my edgimacational talk for the day ;D
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: VMX247 on July 10, 2010, 08:15:26 pm: Quote from: monaro308 on July 10, 2010, 08:00:17 pm
If the goverment can keep their dirty greedy mitts off the excise tax (reported to be about 12cents per litre)
why do they continue to do this shit,no surprise ideas go belly up .. >:(

Thanks for the info Mr Monaro very edgimacational ;D
cheers A
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldfart on July 10, 2010, 08:24:07 pm: So, we are seeing more and more diabetic dependant cars hit our roads. I wonder what sort of an effect it has on the internals ( bore -valves etc ) after 5 years
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Davey Crocket on July 10, 2010, 09:37:13 pm: Probably fuc it Stu......V8 supercars use the shit...they use 30% more fuel than when they ran normal feul and the engines have a life span of 50% less....what the?...it's all bullshit, but when goverments get involved in projects and use taxpayers money, the spin doctors come out to play and it's usually downhill from there.... ???
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: monaro308 on July 10, 2010, 10:00:50 pm: Quote from: oldfart on July 10, 2010, 08:24:07 pm
So, we are seeing more and more diabetic dependant cars hit our roads. I wonder what sort of an effect it has on the internals ( bore -valves etc ) after 5 years
Early days on the dynes had the oil diluting big time and damaging rear main seals because of the amount of fuel needed to do -10 to -40c cold starts.
Going from 4 hole injectors to 12 hole injectors cured that(same amount of fuel but a MUCH finer mist) to ignite.
Otherwise nothing major showing up at all.
Engine dynes doing computer simulated sunday drives to engines doing 600hrs straight at WOT...nice pretty red to white exhaust glow ;D
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldfart on July 11, 2010, 09:06:17 am: Interesting to note they require a finer mist, does this mean injectors require frequent service intervals. To me this diabetic shit they are ramming down our gob comes at a cost latter down the track.
I have heard that BMW do not recomend using these diabetic blends as it will affect your warranty. ????
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: huskibul on July 11, 2010, 10:33:36 am: More expensive landfill oldfart ::)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: monaro308 on July 11, 2010, 11:05:59 am: The finer mist was required for start ups to pass emission tests as the cats failed with the rich mixture (burning out)....Funny that an eviro friendly fuel was failing emission tests...lol.
I was telling the dyne dudes oh well throw another set of cats on and test again ;D
They must get that answer every time some smart arse walks into the dyne room.....they hand me a paper with the receipt for the "test cats",these are specially baked at an accellerated rate,thermocoupled,and the material inside the cats are so fragile a small tap shatters like glass.....$30,000 each :o
So each dyne test can cost around $200,000 a go when you add up wages,test parts,test Fuel etc,etc.
You should see the panic when a test fails just after start up,these Euro 4 - Euro 5 standards that the goverments want is a killer as the cats need to "light up" to around 360deg c within a few secs to make them effiecent.
Servos will be installing the pumps very soon in each state.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Lozza on July 11, 2010, 10:28:25 pm: dyne=dyno??????

Is that e85 pumps going in everywhere? I did hear that Caltex were preparing to launch e85,is that correct?
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: monaro308 on July 11, 2010, 11:55:16 pm: Yeah Lozza Dyno....they are called dynes at work. Also have the tow along ones about the size of a 6x4 trailer.It has a car diff and the tail shaft connects to a big generator/amature type set up.The lot weighs about 900kgs.
An extension lead from it sits next to the driver with an adjustable knob/pot to dial in any resistance,almost to the point of stalling the car at full throttle.
Yes Caltex will be installing E85 bowsers in the next few months mainly the eastern states first up,then central and west very soon after.
http://www.caltex.com.au/LatestNews/Pages/NewsItem.aspx?ID=13178
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Davey Crocket on July 12, 2010, 07:45:09 am: Another downside to these Euro 4/5 emissions is alot of the engines have to run a "low sapps" type of oil which you guessed it costs twice as much as current type blends that are used. It will also be harder on parts eg, cat converters etc to maintain the correct emissions in the service life of the vehicle.....more expensive to maintain= end user pays.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: Lozza on September 25, 2010, 11:48:34 pm: Here's a bike running 17.5:1 OIL RATIO (http://www.youtube.com/watch?v=8oq5SgKxOLc&feature=channel), where's all the plug fouling , smoke and black spooge out the exhaust ???
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldfart on September 26, 2010, 06:54:11 am: Lozza, because motor needs in for cooling and motor is constantly on the boil .......also note motor was killed for a plug ( looky ) ;) ;)
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: oldfart on September 26, 2010, 06:58:59 am: Monaro , Excuse my ignorance and hyjack ......Is a cat-convertor designed to be some sort of after burner ????
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: bazza on September 26, 2010, 12:19:17 pm: same gas and oil and ratio as holeshot buddy-runs and starts sweet piston and barrelll always sweet.
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: whitey 43 on September 27, 2010, 07:17:45 am: When I used to race the shell series (QLD) in the late 90's, I ran Silkolene comp 2 plus & Shell 98 @ 40:1. I ran the whole series + practice sessions without A freshen up.When I pulled the motor down,the piston had A nice little tan burn pattern & the piston / ring were still well within servicable tolerances.Most of the oils these days are good, but you can guess what oil I still use...
Title: Re: Whats your choice? Fuel, Oil & Ratio
Post by: DR on September 27, 2010, 07:40:32 am: in the majority of oil pump supplied 2T engines (ala TS and TM) I use Valvoline 2 Stroke Racing Oil and the std pump output settings. The others (RM etc) get R30 or A747 at 20:1 with BP Ultimate. My 2 stroke equipment (Kawa and Husky) run pretty hard all day everyday year in year out and again it's Valvoline at about 17:1, and guess what..no smoke and great reliability ;)