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Dangerous_Dave
 Post subject: fuel economy
PostPosted: Tue Apr 28, 2015 9:17 pm 
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848cc
848cc

Joined: Thu Jun 26, 2014 2:06 pm
Posts: 25
Location: Gold Coast Qld
hi fellas
was just wondering about fuel economy. i have a 998 with a 1.25 su and was wondering what you guys would expect out of it?
also wondering how much thirsty-er going up to a 1.5 su would make it?
just ballpark - i know it will depend on style and location of driving.
cheers. Dave.
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ba_dm_tsh
 Post subject: Re: fuel economy
PostPosted: Tue Apr 28, 2015 11:21 pm 
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848cc
848cc

Joined: Wed Oct 01, 2014 6:35 pm
Posts: 131
Best I've managed with a 998 is about 14km/l but I have a pretty heavy right foot :)
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timmy201
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 7:23 am 
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1275cc
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Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4501
Location: Wollongong, NSW
With my 998 and a 1.25 SU I was getting an average of about 7.0L/100km.

I haven't measured a tank with the 1.5 SU yet, but once it is tuned properly it should get better economy than the 1.25. I installed a minispares "stage one kit" which has a much more efficient intake and exhaust manifold.

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michaelb
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 9:37 am 
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1275cc
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Joined: Sun Jan 21, 2007 9:16 pm
Posts: 3166
Location: North of the Harbour planning my next mini project
If tuned correctly I don't think it will make much difference.

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Irish Yobbo
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 11:44 am 
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1098cc
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Joined: Mon Apr 06, 2009 9:02 am
Posts: 1233
Location: Sandy Bay, Tasmania
I have a 998 with an HS4 carb (so 1.5"). I haven't measured fuel economy for a while, but it used to get about 7-7.5l/100km on my morning commute - which was part highway, part country and a small part city driving.

I wouldn't expect the HS4 to use any more fuel than the HS2 so long as it is tuned properly.

Keep in mind that some power upgrades (slightly bigger carb, better exhaust, better inlet, higher compression ratio, better ignition) will improve your fuel economy as well as power - depending on how you drive. For the same speeds they will improve fuel economy, but they will give you the option to use more fuel too!
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poeee
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 11:47 am 
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1360cc
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Joined: Tue Mar 16, 2004 8:55 am
Posts: 11264
Location: Geelong, Victoria
I got a genuine 40MPG once out of my standard 1100 van years ago.

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Hobson
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 11:51 am 
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998cc
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Joined: Tue Sep 10, 2013 3:21 pm
Posts: 979
Location: St. George Area, New South Wales
poeee wrote:
I got a genuine 40MPG once out of my standard 1100 van years ago.




AKA 5.8l/100km

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poeee
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 11:54 am 
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1360cc
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Joined: Tue Mar 16, 2004 8:55 am
Posts: 11264
Location: Geelong, Victoria
Yep! I must have been taking it easy...

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timmy201
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 1:03 pm 
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1275cc
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Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4501
Location: Wollongong, NSW
40MPG (UK) is equal to 7.1L/100km. Mine does this on most tanks.

40MPG (US) is equal to 5.88L/100km

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Hobson
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 1:47 pm 
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998cc
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Joined: Tue Sep 10, 2013 3:21 pm
Posts: 979
Location: St. George Area, New South Wales
I like the US measurement, means I use less fuel.

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timmy201
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 2:07 pm 
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1275cc
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Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4501
Location: Wollongong, NSW
The US cars also had a 6.5 gallon tank, as opposed to the 5.5 gallon tank in the UK models :lol:

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Hobson
 Post subject: Re: fuel economy
PostPosted: Wed Apr 29, 2015 2:14 pm 
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998cc
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Joined: Tue Sep 10, 2013 3:21 pm
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Location: St. George Area, New South Wales
Dam they get all the good stuff! XP

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