swoope

iTrader: (5)

^^^^

as he said,

unless you have the omp off. no need to do that much..

for the street, 4 oz tends to work. double that for the track..

and you are where in fla?

beers

SpIcEz

Not to mention, hella expensive in the long run.

jtaylor

I have a few friends that are tech's here . , just want to see if this is true and if it's a smart move are not, to mix acetone with gas to raise your octane .just want to see if anyone has any input.

Brettus

iTrader: (2)

don't know about acetone but it's not necessary or beneficial to raise your octane level for the renesis ....

StealthTL

iTrader: (1)

........just want to see if this is true and if it's a smart move are not, to mix acetone with gas to raise your octane.........

Please don't.

It is just an urban legend that has new life on the internet. In the tiny amounts people say they add it would have to be magic.

It MAY raise your 'octane' a tiny bit, but has less power than gasoline, so the net effect is zero. As a powerful solvent, it MAY clean your injectors, or it MAY just dissolve some of the sludge in the tank or filter and move it on down the system to where it causes trouble.

If it did any good, Exxon would add it and claim better mileage......

dannobre

iTrader: (3)

Toluene maybe

jtaylor

yea wasent sure , just wanted to see what you thought..I am going to give premixing a shot..

jtaylor

I drive 60 miles a day for work and dont think a little extra lube on the seals couldent hurt.

thearkitekt

extra lube is never a bad thing! lol. seems premix is the way to go, thanks!

Conundrum

iTrader: (1)

Any one know anything about G-OIL™ Garden & Recreational 2 Cycle GREEN Engine OIL for Green Earth Technology? It only stated API TC, but no JASO rating, can't find them locally either. I did found it on Amazon though.

http://www.getg.com/products/product...2&ProductID=10 $4.88 for 16 oz on Amazon.com

Any one want to go "green" and try it?

Brettus

iTrader: (2)

ha - would be kind of ironical to use that in a gas guzzling 8 ...

olddragger

iTrader: (3)

havent posted here in a little while. Anyone who knows me ,knows also that I have been a supporter of premix for yrs.
Lately I have come to have an opinion that 4 oz per 16gallons is way too low to have any type of measurable affect. Even with the mop operating.
The mop places oil in a different manner--it is wiped--not aerosolized as with injection. We all know that. RB did much research into pre mix and concluded that at 1 oz per gallon--benefits were seen. Lower ration than that nothing measurable was demonstrated.
In seeing teardowns and in obtaining anecdotal information on and from engines/owners that have pre mixed, i now believe that if pre mix is used, it is useless at in the lower ratios than the 1 oz/gal. The very small amount of premix that survives the combustion process doesnt go far. If you have an opportunity to see some housings-- notice where the wear is occurring.
We know carbon buildup is a problem for our engine and this complicates with the use of premix. Not that this can not be dealt with, but it is another thing that must be kept in mind.
i am sure some others will not agree with this and that is fine. I just wanted to share my own opinion.
What i think would be better than pre mixing is to get the mop to supply more. And for the 2 oil port engine needs to enlarge the oil weep holes helping to spread the supply. I know that may cause some discussion also
What I would really like to see is a relocation of 2 more oil nozzles at a different point on the housing for a total of 4 nozzles.
olddragger

danielk015

iTrader: (1)

^^ would that amount of premix mess up our stock cats?

TThell

I am new to the rotary and my questin is does the premix, especially in larger doses clog the fuel filter (sock) in the tank, over time
right now I use 4 oz per tank every other fillup, only because I am worried about clogging the filter sock

does anyone with alot of experience with premixing have any insight into this?

Thanks

Tony

swoope

iTrader: (5)

will have some info on this tomorrow night..

beers

CERAMICSEAL

I respect you and your opinions but I also respectfully disagree with just about anything you've stated here (Rare occasion). 1 oz per gallon is great without a metering system when using a quality pre-mix lube. 4oz per tank is a great supplemental.

My 2 cents.

Seal.

olddragger

iTrader: (3)

Dont get me wrong---I will never say stop pre mixing and the respect is mutual. I am just one little fella sharing what he has seen and based on that I need more evidence to concur that a very low ratio of pre mix does anything in reference to wear and longitivity. I understand the idle may be a little better and other subjective observances may occur but it remains to be seen that low ratio pre mix will make the engine last longer. No one to my knowledge has ever demonstrated this. I have seen two engines firsthand that premixed most of their lives with substantial wear on the housings. I know of a couple more that had to have new engines due to low compression issues. Maybe the MOP is not working well and other things may have happened also, I dont know.
I do know that on my own 1st engine that a ratio of 1/2 oz per gal my vacuum readings did go up. Anything less it did not. I pre mixed that engine for a long time. When i tore it down the wear surprised me.
Now i still pre mix on the street at 1/2 oz per gal(i do not have a cat) and i do run 1 oz per gal at the track and at that ratio you can smell the oil. I just dont expect the pre mixing to help the engine live any longer,
rotor on
olddragger

swoope

iTrader: (5)

od,

i think a lot of it is how long the 04 motors were run on what flash.. the longer run on the early flashes. k and n. the more likely the wear..

the earlier you got to the latest flashes and the less miles all the better.

btw, are you current on the flash now? i know i am one behind. hope to get that changed on monday..

beers

robrecht

It's an interesting issue, to be sure. RB sees performance gains with much higher amounts of premix. I don't know if their track car had a cat or an OMP or if fouled plugs or carbon build-up are as much of an issue on a track car that receives much higher levels of maintenance. Any one have more details than this statement on their website:

RX-8 - Race Tips

While undertaking development work on the RX-8 Renesis engine for SCCA T2/T3 use, we decided to introduce extra oil into the fuel to monitor the effect. To our surprise, this additional oil increased power! Further dyno testing found that by adding 10 oz. of Royal Purple 2-Stroke Oil to 6 gallons of fuel, we gained an average of 1.7 HP from 2000-9000 RPM, along with an increase in peak power of 4 HP. We validated this increase by changing back to a “non-oiled” fuel - and the power returned to the previous level. Later, we tried the same test with another brand of synthetic oil with nearly the same results.

For racing applications, the addition of a high quality synthetic oil increases power and most certainly decreases wear. The only negatives are the cost of the oil and an increase in the tendency to foul the spark plugs. (Note: We have not performed these tests on non-RX-8 engines yet, these results are unknown.)

http://www.racingbeat.com/Tech/Tech.Oil.2.htm

jlf12345

well, posting her cause i made a bone head mistake after reading PART of this forum and not the whole thing. I was using penzoil synthetic marine 2 stroke, which has the TWC3 or whatever it is called....

so the other day i was at my local cycle shop looking for some good 2 stroke oil, and the salesman pointed me to this stuff....

Motul Off-Road 800 Factory Line ester 2T full synthetic.

is this any good for our 8s? it was expensive for 1L, and I'd like to know if I should return it before I use it, or if i should keep it and use it...

olddragger

iTrader: (3)

Swoope baby--i cant get a flash update because i am running the pettit kit flash, i have always gotten the newest flash as soon as it was out. But since dec /07--i cant flash anymore. Maybe I need to speak with Cam about this--maybe the latest flash was including in his program when I got it? Probably was.
OD

ASH8

Motul is a very good and expensive 2 stroke.

As far as the RB experience goes well obviously their use of 2 stroke increases the lubrication compressions of any rotary, hence the gain in power...that is nothing new to me, nor a surprise, domestically you can not run those mixing ratio's without other issues popping up like, clogged cat, fouled spark plugs, EPA breaches....and then there is the added cost.

swoope

iTrader: (5)

fing, duh,,

tard, dee dee dee.

am on my second day of antibodics. fever broke yesterday..

i would ask cam what flash it was based off.. as the last couple have increased the omp values a lot..

and the points i made about the motors from 04, i think are pretty real, if they are na. sorry, duh again..

beers

Nubo

I would agree about the downside of too much oil, and add that the amount of added oil needed to measurably improve compression does not necessarily mean that a lesser amount isn't improving wear. That is, RB's results don't mean that 1/2 oz per gallon is "doing nothing".