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Author Topic: Adjustments for gasoline octane 95  (Read 8453 times)
hru
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« Reply #15 on: November 05, 2007, 10:37:47 am »

Hi Roy & Anders

The theme is very interesting - specially for us in Denmark, where 98 with MTB is almost banned !

I have tried earlier with 95 (by mistake of course  Wink) - and it was no good experience with the pinking.
It was very clear to hear even with small accelerations. Pushing the acceleration was not an option.

But since the thread was startet, I have now tried the shell V-power which is 97 octane.
It seems to work, however I will adjust the timing a little - maybe 1-2 degrees or less.

I don't think the octane booster is an option, the price for a small bottle is ~12-13 EUR - and one bottle pr tank - no, crazy.......


Another thing I have found interesting is the approval of unleaded fuel from Peugeot.
Since a lot of us matra-freaks uses additives....... - but it is not needed.

Anders, I will find Bagsværd one day, when I have the Murena on the road again

BR
Henrik
« Last Edit: November 16, 2007, 01:48:38 am by Lennart Sorth » Logged

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phil75
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« Reply #16 on: November 05, 2007, 04:59:57 pm »

for me I roll with the SP95 without aucuns problems.

specialist MURENA (politecnic) has me that it was useless to modify the synchronization of lighting to roll to the sp95 if a pointed camshaft is had (“the maximum road” for example)

Philippe
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- Philippe -
Matra Murena 2.2 1983 engine 20000 km
Yamaha R1 2004  9000 km (engine)
VW Golf II 1.8 1990 209000 km
Rover 111 1994 155000 km
Anders Dinsen
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« Reply #17 on: November 05, 2007, 08:10:46 pm »

for me I roll with the SP95 without aucuns problems.

specialist MURENA (politecnic) has me that it was useless to modify the synchronization of lighting to roll to the sp95 if a pointed camshaft is had (“the maximum road” for example)

Interesting.
There could be differences from country to country in the compositions of the petrols.
Roy has probably tried 95 octane on a Holbay "fast road" cam, which will be similar in period to the Politecnic cam.
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
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