FUEL FOR PERFORMANCE

[fireblade]

I am sprinting my 991.1 Turbo S this Saturday (nasty chicane included!) and petrol distributors here in Jersey are changing fuels.

Still available here is 95 and 98 (old style no ethanol) However my garage has changed to 5% ethanol in 94 and 97.5 specs.

Which is better for ultimate performance? (acceleration, not interested in economy)

I currently hold the record for my class but am up against some heavy AMG 65 metal and I would rather see Porsche keep the record.
Any advice gratefully accepted
Cheers

 

[rogerconnolly]

Hello

 

[fireblade]

Hello - hope im using this blog correctly as a new visitor - have just recd a warranty extension letter - 12 months £1020 and would like feedback as to whether this 'insurance cover' is worth investing in given that insurance underwriters hate paying out on all claims. for example - I assume that if I make a claim on warranty in the 11 month of warranty cover insurance the repair will be warranted by the repairers for a 12 months going forward or does the insurer further warranty for 12 months.

Any help will be really appreciated. Happy New Year
Roger - 2016 911 Carrera 4 Cabriolet

Hi Roger
This thread relates to "Fuel" as per the heading so might not get the attention that it deserves.
Try looking for other threads on "Warranty" and repost there or start a new thread on "Warranty" I recall several similar enquiries but cannot remember where they were.

I have always renewed my warranty on a rolling basis so have not faced this situation but I doubt that the insurer would in effect give you a further 12 months after the initial claim unless you renewed.

There will be many who can help you but they may not see your post in this thread,
Cheers

 

[Lancerlot]

I am sprinting my 991.1 Turbo S this Saturday (nasty chicane included!) and petrol distributors here in Jersey are changing fuels.
Still available here is 95 and 98 (old style no ethanol) However my garage has changed to 5% ethanol in 94 and 97.5 specs.
Which is better for ultimate performance? (acceleration, not interested in economy)
I currently hold the record for my class but am up against some heavy AMG 65 metal and I would rather see Porsche keep the record. Any advice gratefully accepted
Cheers

High octane fuel is not going to provide you with any additional performance, unless you remap the engine. However, it may prevent the electronics attempting to retard the ignition so as to prevent detonation and damage to the engine when a weak fuel is being used. This would slightly reduce the amount of available power. So put in the highest octane you can.

If you're really serious about the event, pop over to Weymouth and get some Shell 98 in a jerry can (or have someone bring some across []). I've got 105 octane here you can have, but North Devon is a slightly longer journey. [8|] It's available in Bournemouth too!

I doubt an AMG 65 will give a well driven TTS much trouble, so pedal to the metal and good luck for the weekend.
Regards,

Clive

 

[fireblade]

I am sprinting my 991.1 Turbo S this Saturday (nasty chicane included!) and petrol distributors here in Jersey are changing fuels.
Still available here is 95 and 98 (old style no ethanol) However my garage has changed to 5% ethanol in 94 and 97.5 specs.
Which is better for ultimate performance? (acceleration, not interested in economy)
I currently hold the record for my class but am up against some heavy AMG 65 metal and I would rather see Porsche keep the record. Any advice gratefully accepted
Cheers

High octane fuel is not going to provide you with any additional performance, unless you remap the engine. However, it may prevent the electronics attempting to retard the ignition so as to prevent detonation and damage to the engine when a weak fuel is being used. This would slightly reduce the amount of available power. So put in the highest octane you can.

If you're really serious about the event, pop over to Weymouth and get some Shell 98 in a jerry can (or have someone bring some across []). I've got 105 octane here you can have, but North Devon is a slightly longer journey. [8|] It's available in Bournemouth too!

I doubt an AMG 65 will give a well driven TTS much trouble, so pedal to the metal and good luck for the weekend.
Regards,

Clive

Thanks Clive

A good idea but France is closer and I usually top up there although they only seem to do 98. Not due to go again until March. Unfortunately the ferry company (Condor) do not allow even empty petrol cans to be carried although of course I can and do fill up.

I am particularly worried about whether I should use the ethanol or straight petrol to avoid any engine damage at high stress although of course I would like the best performance as well!

I am only doing the sprint for fun and a bit late for this one but going to the UK to fill up with really good stuff is appealing.
Cheers
Michael

 

[Lancerlot]

Your 991.1 Turbo S will be fine on the ethanal additive fuel. Ethanol is hygroscopic and therefore unsuitable for older generation vehicles but is fine with modern vehicles designed to run on it.
Regards,

Clive

 

[fireblade]

Your 991.1 Turbo S will be fine on the ethanal additive fuel. Ethanol is hygroscopic and therefore unsuitable for older generation vehicles but is fine with modern vehicles designed to run on it.
Regards,

Clive

Thanks Clive, you have put my mind at rest.
Cheers
Michael

 

[garyw]

Good luck on the event and record Michael,
As Clive says, I'd be disappointed if they can chuck the AMG up a sprint coarse as well as a TTs []

 

[fireblade]

Thanks Gary

I hold the record at the moment and to beat it would be great. However I will be satisfied if the AMG is slower but the driver is 40 years younger than me and as Clive says "a well driven TTS"

 

[tscaptain]

How long is the course?

 

[fireblade]

How long is the course?

Hi Alan
Quarter of a mile with chicane in second third. just off now.
Michael

 

[fireblade]

Your 991.1 Turbo S will be fine on the ethanal additive fuel. Ethanol is hygroscopic and therefore unsuitable for older generation vehicles but is fine with modern vehicles designed to run on it.
Regards,

Clive

You are spot on Clive.

I used the 5% ethanol and apart from one hiccup on my first practise run, when the launch control dumped me, all my runs were faster than my previous record. I managed to lower it from of 12.04 to 11.92.

Just in case there are GT3 991.1 owners out there, one using premium petrol, took the record in last years December's sprint at 12.10 which I managed to squeeze to 12.09 in March (normal 97 petrol) then 12.04 in September (normal 97 petrol)

It seems that the Turbo S performs better on the ethanol.

Thanks for your help and advice.
btw the AMG had been incorrectly described and was not the 65 but a portly 55 which had no chance!

Happy New Year everyone
Michael

 

[JMR]

Well done Michael - congrats on your new record too []

 

[Tony Warr]

Congratulations Michael!! Is your 991.1 TTS stock or modified/remapped?

 

[fireblade]

Congratulations Michael!! Is your 991.1 TTS stock or modified/remapped?

Thanks

Absolutely out of the box as required for my class, Road - Going Series Production Unlimited (MSA 502), modifications would put it into another class.
Michael

 

[Dylan1]

I am sprinting my 991.1 Turbo S this Saturday (nasty chicane included!) and petrol distributors here in Jersey are changing fuels.
Still available here is 95 and 98 (old style no ethanol) However my garage has changed to 5% ethanol in 94 and 97.5 specs.
Which is better for ultimate performance? (acceleration, not interested in economy)
I currently hold the record for my class but am up against some heavy AMG 65 metal and I would rather see Porsche keep the record. Any advice gratefully accepted
Cheers

High octane fuel is not going to provide you with any additional performance, unless you remap the engine. However, it may prevent the electronics attempting to retard the ignition so as to prevent detonation and damage to the engine when a weak fuel is being used. This would slightly reduce the amount of available power. So put in the highest octane you can.

If you're really serious about the event, pop over to Weymouth and get some Shell 98 in a jerry can (or have someone bring some across []). I've got 105 octane here you can have, but North Devon is a slightly longer journey. [8|] It's available in Bournemouth too!

I doubt an AMG 65 will give a well driven TTS much trouble, so pedal to the metal and good luck for the weekend.
Regards,

Clive

Where is 105 avai in Bournemouth Clive?
cheers
dylan

 

[Lancerlot]

It's Poole not Bournemouth - my mistake, but it's close. []
Anglo American Oil Company, 58 Holton Road, Holton Heath Trading Park, Poole. Dorset. BH16 6LT www.aaoil.co.uk
Regards,

Clive

 

[ralphmusic]

You can get race fuel at Silverstone at the fuel station near the National Pits.