Fuel mix to run at 10 of the best

[Alex]

Can we use this stuff?

 

http://www.76lubricants.co.uk

 

Go into Products - Racing Fuel - Read it then Click on next and you'll get to the good page!!

 

118 Octane fuel!!! (122 European Rating whatever that it)

Ron 120+ MON 114+

 

But its leaded...so can we use it on a decatted car? I know lead would kill a Cat.

 

The rules of 10 of the Best state that any fuel and or additives can be used.

 

The car just has to be road legal...damn no slicks

[Chris Wilson]

Yes, great fuel, reasonable price. You MAY need to throw a new O2 sensor at it after though, sometimes they tolerate a few tankfuls, sometimes they don't.

[Adam W]

I think I heard somewhere that leaded fuel will knacker O2 sensors . . but a new O2 sensor is only about £60, and you're not gonna be doing many miles anyway are you?

 

I can't help thinking that even with racing fuel you're not going to get something for nothing - ie even if the octane rating is really high, and you advance the ignition massively and make loads of power, won't thermodynamics or something catch up with you at some point? ie more energy being created, which needs to be dissipated by the cooling system, and withstood by the moving parts.

[Chris Wilson]

Originally posted by Adam Wootten

I think I heard somewhere that leaded fuel will knacker O2 sensors . . but a new O2 sensor is only about £60, and you're not gonna be doing many miles anyway are you?

 

I can't help thinking that even with racing fuel you're not going to get something for nothing - ie even if the octane rating is really high, and you advance the ignition massively and make loads of power, won't thermodynamics or something catch up with you at some point? ie more energy being created, which needs to be dissipated by the cooling system, and withstood by the moving parts.

 

I was assuming mapping would stay the same and the octane used as insurance against det on the day. For sure, adding adavance to take advantage of the octane will help mid range, but then it will come back, eventually, to the point where the safety margin is once again compromised.

[Alex]

Can I use a mix of Optimax and Race Gas? As obviously I can't just swap the tank out for a clean one!

 

Chris, have an O2 sensor ready!

 

I'm not changing the map and I don't know how to advance the timing on a Supra...isn't it automatic? Just reset the ECU and drive it round for a bit?

[Guest Terry S]

Alex, the 106 unleaded will be sufficient & it won't destroy your o2 sensor. I have been told that an o2 sensor can take 20hrs leaded before it's knackered from new.

 

With the stock ECU how can you advance the timing to take advantage of the 118 fuel?? An ITC will work to a fashion, but it's not ideal

[Alex]

Whoops didn't see that ... got distracted by the big no.s

 

Indeed that stuff would be perfect just right for my MINES ECU

 

Eeeek -

55 litre (pail) £128.08 + delivery

25 litre (pail) £63.45 + delivery

208 litre (drum) £438.28 + delivery

 

Well at least that includes VAT!

 

£130 to fill 'er up!

[Steve W]

If an engine is set up to run 'perfectly' on... say...98RON,

wouldn't it actually run slightly worse (less efficiently) if you

then use 105/110RON ? ?

 

Surely if you DON'T alter the timing the much higher octane won't

match the ignition characteristics ?

 

I know it will prevent (delay) pinking, but won't it actually produce

LESS power unless you re-time ? ?

 

[or, is that exactly what you just said above, and I'm a bit DERRR ? ]

 

STEVE.

( )

[Branners]

I think the knock sensors in the Supra can retard the timing on poor fuel, or bring it forward on good fuel. It also reduced the chance of det due to better combustion in the chamber.

 

JB