Steve W

" Just found on Miller Oils 'UK' site they do "Octane Plus".

They claim (on the site) an 'average' of 'up-to' 1.6 RON
increase and example there 95-to-97 & 97-to-99 (I think it was 99)
[ It specifically said RON and gave the eg's ! - hard to
prove/disprove I suppose ? ]

NOT saying I believe it, just quoting.

That would be VERY good for any 'bottle', from your posts ?

Any knowledge of . . . . (would make a good standby for when Tol'
not available !?) "

Nitro.....

I DIDN'T actually mention anything BUT Millers, until right at the end ! !

I DIDN'T ask ANYTHING about 'Nitrous Formulas' ? ? ?

How many RON (NOT points) do they claim for that ? ?

Steve.

nitro

STEVE W
The Question that you asked was may i quote !!!

"Any knowledge of . . . . (would make a good standby for when Tol'
not available !?) "

So i was giving you an alternative to toluene at the rates i quoted in my thread.

THE ALTERNATIVE IS NITROUS FORMULA OCTANE BOOSTERS.

You have now asked another question and here is the answer plus some extra information for you.

Every 10 % of toluene added by volume increase's the octane by 1 or it increase's the octane by 10 points.
so if your adding 20 % by volume of toluene then you will get a 2 octane increase or 20 points 30% by volume 3 octane increase or 30 points !!!!
SO answering your question on an alternative to toluene is NITROUS FORMULA OCTANR BOOSTER !!! pretty simple And ive already given you the rates to use in the previous thread.

But you have asked ther questioon on RON increase's well here is the answer to that.
Under the ASTM D2699 to get an octane number increase then here are the results.
Nitrous Formula Octane booster base's the increase (label increase) on 60 litres of regular 92 octane petrol. not 10 or so litres like most ,
If you look at the web http://www.nitrous.com.au/ then you will see the various bottles that are avaiable and the RON increase's.
The only octane booster company to actually talk in RON and not points,units or numbers.

so re-read my threads again and hopefully it becomes easy for you to understand

__________________
When only the BEST will do!!

Mycroft

Went to Stanlow refinery to get more info on Optimax, I'd like to thank Nick Harris for getting me through the door. grateful mate.

Some interesting stuff going on with Opt. getting past the chaff and finding the grains is not easy, but my view is this, and I am only using what I know and not actual facts.

The base for Opt is PUL, but it is treated very differently from the other fuels, taking out some of the denser compounds in the final cracker (which they tell me is only used on the opt) as the fluid moves along the process they heavy stuff is replaced with manganese which has been compounded with either Xylene or Toluene (I think the former) further additives join the party and we get opt. asked whether they understood that people are putting things like NF in their opt, the response was simple, (I am paraphrasing) 'Why bother, we don't spend millions on doing this just to get the same effect as a tin of 'off the shelf' stuff, if you want to do that then just use SUL and play games with that'

I smiled at that, went off and enjoyed a very good lunch with Nick.

EDIT.

Nick owns the best Supra I have ever driven, a beautifully powerful car, a true Twin turbo job, midrange to die for, 2500 to 4500 it is so strong it hurts. A glorious motor.

swan

Mycroft, I'd appreciate your input on two issues:

Mixing 102.6 leaded racing fuel with unleaded 93 (believe it or not that's all we get...) - ignoring damage to catalysts, etc. is this a good way to increase octance? If you mix 50/50 will you get 97.8 or does the leaded/unleaded mix not work that way?

I've been told that a 50% methanol, 25% Tuluene and 25% Xylene mix gives a 108.25 octance rating. Is this correct and what is your opinion on mixing 5l of this into a tank?

Thanks in advance.

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Regards,
Andre

nitro

MYCROFT
I admire the effort that you are putting into this thread with the research etc you have shown.

Your last thread just confirms what i have been trying to say since i first started so im very thankfull for you to back me up.

Your visit to the refinery to come away with the conclusion that octane boosters do work is very encouraging to say the least. Conformation from the refinery point of view that they need and use octane boosters is even better make optimax.

Well Done, Glad you enjoyed your lunch.

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When only the BEST will do!!

Mycroft

Hmmm, well, that is a nice spin on my findings, but not quite the real message.

bladerider

this is an absolutely fascinating thread...ive read it about five times over, just to get into the chemistry.....

I wasnt going to post anything as i have nothing to add.....as im not a petro-chemist.

however, without wanting the force of the aussie longue-lash to come down upon me i have two questions...

1....is it me or are several people in here employed/sponsored ny octane booster companies or their distributors.....it just seems that theres alot of vested interest in some posts...

and 2......why are you making it sound like you are the driving force behind all this nitro??.....to quote "your (mycroft) last thread just confirms what i have been trying to say since i first started etc, etc"

If anyone deserves credit for knowledge, explanation and motivation for this thread i can think of only one person........and i have never met him or know him......but he seems ok to me!!

well done Mycroft for all your hard work......hopefully a conclusion to all this will be found one day!!

James.

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The future is bright.........................the future is ORANGE

Mycroft

I admit to having a few thousand shares in ESSO. (inherited)

But I have tried to remain unswayed by this fact.

I know what the main protagonists on here do, and have made myself aware from the moment this thread started to become the monster it now is.

A final 'answer' is somewhat elusive, but I think we have all advanced our knowledge of exactly what happens in that cylinder, anyone reading this thread will find one nugget of info that is new to them and all of us at least plan to up the power of our motors and the more we know the better equipped we are to make a right decision on what we go for.

In the end 'you pays your money and you makes your choice'.

PS.
This thread has been translated for at least one Japanese web site and I have received e-mails from all over the World about this subject, this forum has been quoted on damn near every Continent on the Planet.

nitro

James

answer to question 1

If the opinions on here do happen to reflect wether or not they do have an interest or sponsered does it REALLY matter.
I have tried nearly all the fuel additives on the market and found couple that do work so does one keep it to himself or tells others.
After all thats what this site is all about sharing information !!!!

Question 2
Im not taking any credit for what Mycroft has done.
AS i said he's done a great job !!!
So i gave credit where it was due WHATS WRONG WITH THAT???

I voiced an opinion which stirred things up, got people talking, dug deeper into this area and found out many different opinions and have come up with some great answers.

This o b thread was going before i came on here so i dont see how i could be the so called driving force.

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When only the BEST will do!!

Ray SA

Mycroft hello , glad to see this thread is gaining momentum again , was getting a little quiet lately .

I have switched to 102.6 RON racing fuel . Fullstop . Only costs 25% more .

Wouldn't it be nice if the fuel company could supply the diffence in a bottle !

Enjoyed your report on Nick's Supra , think thats what we all want is a car that hurts when you accelerate .

Ray

James dont take Nitro too seriously I'm sure his intentions are not as he is received . I have found all people of differing nationalities display challenging characteristics and require effort to get to know .

Just trying to ease the flame front on that one .

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One day at a time

Ray SA

Oh forgot to mention thats 100 MON as well .

Ray

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One day at a time

Mycroft

Ray that is probably the best thing to do, I feel under qualified to design or help design a fuel for your environment.

Jun modded Supe properly set-up = shattering midrange the big 3ltr with 2 turbos that work in unison is perfect for that, the 2.5/2.6 six in my car and in the Skyline is more suited to 3000+ thats when they sing a louder, sharper song.

Regards
Iain, the hopelessly addicted petrolhead.

Ray SA

Apologise if it sounded I was giving up on you Mycroft , not the case just got over my fear of load lead racing fuel after some friends having used it for up to 80 000km's without a wimper from the cats or lambda sensors . Its really more practical than travelling 300km's to fetch 97 and try and fix it , but was an interesting thought . The car has experienced a marked improvement in performance on the road tested against another car using a lower octane , so I'm pretty satisfied . I was rather looking forward to the groups conclusions on Tol / Xylene as we both know it works .
My interest in racing fuel is how balanced it is , and I'm rather naively thinking it possible to convert standard fuel to racing if the composition of racing fuel is known .
Got some of that racing fuel in my eye whilst pouring it and was surprised it didn't sting too much ...

Cheers .
Ray

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One day at a time

Mycroft

First question, no don't do that, the metals carried in the leaded will effect the valve seats badly.

That mix works nicley and does not flare, it is less good than the mix I outlined earlier and you can go up 15/20% without too much fear (incrementally, so as to not 'shock' the motor) but it means a rather prolonged contact with the cocktail than you would really want.