Will 1.3 Cams make any difference with low octane fuel?

[Mongol 998]

Hi,
I'm doing the Mongol rally in a K11 and Bridges Breakers (near the M23) have kindley given us some 1.3 cams and some spare wheels.

Before fitting them I just wondered if this is going to affect our ability to run on the low octane fuel we are likely to encounter, I can't think why it would but was just a thought.
Also how much mpg loss can we expect?

Thanks, Andrew

here is our website: http://www.londontomongolia2007.co.uk

 

[Alienfish360]

it's a 1.0litre engine, there'll be no difference between 95ron and 97ron, You only get benefits when the car is well tuned, and mapped to take advantage of the higher octane.

 

[Mongol 998]

Sorry, what I mean is when I'm in Kasakhstan and the fuel has very low octane will the car be more likely to stop running if I have the 1.3L cams in?

 

[Arnold]

Get some octane booster for your trip!

 

[Mongol 998]

Will do. I suppose that answers the question really! How about the mpg, what sort of losses can we expect with these cams?

Is it just a straight swop, we made sure they were both dizzy models.

 

[Arnold]

Just wondering, why are you changing them over?

 

[GT88]

i have just done that and yer its a straight swop. but im having probs.

puting them cams in means you wont have good low revs but good high revs.

 

[James]

You could always retard the ignition once you get out there so it'll run on the lower octane petrol?

 

[Mongol 998]

The original idea was to get a bit more power
With a heavly loaded car we'll be wanting to get good power lower down, not just at high revs, maybe this isn't the best idea???

We may retard the ignition a bit if we hit bad fuel along the way.

 

[kristian]

Personally id leave the internals standard if you can..

Concidering breaking down is the worst thing that could possibly happen for you.

The CG engines are actually quite a torqey engine so i think you would be ok as is...

Obviously a 1.3 block would be best.

 

[James]

I think Mongol Rally cars need to be 1ltr or under to go though!

 

[GT88]

just to let you know iv got my cams timed right and the it has good power lower down.

 

[Mongol 998]

Ah good, any change in fuel economy (important for us)? I think we've decided against it, just so nothing can go wrong. Thanks for everyones help though.

 

[GT88]

I think it will drink more. The octane booster idear is the best I think

 

[Ed]

Octane booster is a waste of money on such a journey. Keep it stock and prepare for bad fuel, as I think you have now done so. Thats a much better idea imo!