Mycroft

I must admit to being less than 'adequate' on the explaining front.

In a lecture hall, you have 'props' and you can say so much more and put in 'asides'. This medium has definitely highlighted my shortcomings, I can only hope to improve with time.

nitro

Mycroft
So the fuel companys that are using the same octane booster are full off crap then !!!!!
Is that what your saying ??????

__________________
When only the BEST will do!!

dingy

OK,

NF gives more Ignition advance than any other, more than using 103 ELF race fuel. FACT.

Most OB claim points, there are 10 points to a RON.

No single bottle of millers will give any UK fuel 101 RON, same goes for pro-boost.

Pro boost is 1-2 RON on NUL
Millers is 2 RON on NUL

Therefore its impossible to have more than a 2 RON increase on SUL or optimax.


Email me if you need any details.

steve@nitrousformula.co.uk

Simon

Can you get it in single shot bottles yet?

__________________
Simon Moxon
550bhp++ R33 GTR

dingy

Single Shots available next week.

Mycroft

I certainly do not wish this to generate to a yes/no claim and counter claim, but our testing finished at 10AM yesterday, and after a bit of analysis no one here can find any more than a 0.6 increase in the Octane rating, it is quite cut and dried to all who checked, the only effect is to change the 'frequency' of the flame front and this fools the knock sensor and the ignition is noy retarded.

I will happily accept that this just the opinion of a few people and I certainly cannot state the stuff is a waste of money as that is inflammatory and I do not wish to inflame anyone.

In the end it is a matter of choice, I will continue to buy Toluene and use it judiciously in my car, I have done with no ill-effect for nigh on 3 years.

there is a thread above which asks about Aviation fuel, my advice there is simple and very succinct...do not touch it, your valves will die very soon after use and the cold start and vapour propogation could lead to a fantastic fire in the plenum, the car literally burns itself out, I have first hand experience of this (James a good friend from the past destroyed his Cosworth in waht was simply the most spectacular manner imagineable.

It burns too hot for road cars.

Bigsly

Mycroft,

Thank you for your very valuable input i find your info very interesting also working at a chemical company myself..

Could i be a pain and ask what % would "optimum" to add to optimax on a regular basis for a good return...

Thanks & Best Regards

Stu

Mycroft

I found that Toluene with about 2% iso-propyl to be best at around 7% by volume of the fuel used.

So, simply mix 5ltrs toluene with 100cc of Iso-propyl, mix this with 65ltrs of Optimax or 60ltrs of SUL did just the trick for me.

I pulled a 12.2 quarter using that mix, it make the car very brutal at the top end as it is here that the toluene really punches its full weight.

Peter

So are you saying that by simply adding of the toluene mix to your normal fuel this produces a substantial increase in power without making any adjustments to your ignition timing?

I would have thought that to take full advantage of a higher octane fuel you would need to advance ignition timing....? A 12.2 in a Soarer sounds very impressive, do you know what sort of time you would do without the toluene mix?

Mycroft

Without Toluene I can just break under the 13's (12.984).

My timing is set a little ahead anyway and I do mean a little!

If you advance the car too much then she gets all 'frumpy' in the low revs and is not smooth enough for everyday use.

Using Toluenen you will find that for the first few thousand miles you will need to change the oil twice each time at 1000miles, this is because the carbon deposits left by the 'ordinary' fuel are being 'dissolved', it is not impending doom!

Your car always runs smoother after using Toluene for a while and even if you return to 'ordinary' fuel the car is quicker than before.

I use Platinum plugs, that are normally set at 1.1mm I always regap these to 0.9mm.

JasonO

So where can I buy Toluene ?

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JasonO
GTR Forum Moderator

MattPayne

Mycroft, you need to start making barrels of this toulene, iso-propyl mix you would make a killing ere... I can already see the queues forming...

Mycroft

It is tempting, I have a supplier and a licence for it (amongst others) storage is not too big a problem, but I'll let some entrepreneurial type go for it, not really my 'bag' so to speak.

Peter

Mycroft,

Don't get me wrong here as I am genuinely interested in your experiences with toluene and your car but to get an improvement of nearly 0.8 seconds over a 1/4, the power hike is simply astonishing if you are putting all that improvement just down to toluene. Given the weight of the Soarer, this must equate to well over 50 bhp...!

You also mention that "My timing is set a little ahead anyway and I do mean a little!" Ahead of what may I ask? Are you saying that it's too far advanced for normal petrol and if you are, surely you'll get more than a "frumpy" feeling from your engine, you'll be in for a rebuild bill when you've blown a piston or whatever due to detonation.

As I say, I'm not a disbelieving type but I can't square what you've said with what little I've learned abut tuning since owning my GT-R.

I'm also interested in Dingy's (Steve) opinion of what you've said about octane booster not really being worth a light. I for one continue to use NF on track and it has a noticeable affect on knock detection on the Power FC. However, I'll gladly stop using it if it's a complete waste of cash!