Shell claim that Optimax has an octane rating (RON) greater than 98.

I would imagine that most of the link ecu's in this country, like mine have been mapped for SUL (97 RON).

So has anyone with a link ecu tried Optimax ?
and what are their experiences.


Mike

Yes http://bbs.scoobynet.co.uk/biggrin.gif http://bbs.scoobynet.co.uk/biggrin.gif http://bbs.scoobynet.co.uk/biggrin.gif http://bbs.scoobynet.co.uk/biggrin.gif http://bbs.scoobynet.co.uk/biggrin.gif

Can be mapped specifically to take advantage of it as long as thats all you use (or carry booster around with you)

My Link was mapped for Optimax, and it seems to be doing the business on the roads and on the rollers!!! http://bbs.scoobynet.co.uk/wink.gif http://bbs.scoobynet.co.uk/biggrin.gif

Andy

Mike,

Would love 2 have a go @ it but was told by customer services @ Shell "optimax wont b available up here till 1/4 one of 2002" http://bbs.scoobynet.co.uk/frown.gif

Pete

Doesn't a Link ECU 'learn' to adjust to different fuels, as the standard ECU does?

Richard.

Nope.

The link uses a static map, it can be run in closed loop, using the lambda input for fuelling...but that won't adapt the ignition curve like the JECS does.

http://bbs.scoobynet.co.uk/smile.gif

/J

And it's the ignition that's increased/decreased depending on the quality of the gas.

Better quality gas is harder to ignite -> more advance is possible, before knock occurs (self detonation from high temp/preassure).

/J

Bob,
How much of a difference would you feel behind the wheel with a car specifically mapped for Optimax (98.6 RON) versus 97 or 95 RON - Does the additional performance outweigh the extra hassle of finding the right petrol station and paying a bit more per litre?