Tam the diesel man
Member
Registered: 31st Jul 01
Location: Portsmouth
User status: Offline
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when i have more than half a tank of fuel in my car the car runs a lot more faster than if i have less than half a tank in? when i have less than half a tank the car takes its time to get above 80mph. with more than half a tank the car has no problems doin 80mph+
help cos im really confused
tam
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Mikorsa16v
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Registered: 2nd Sep 02
Location: Burgess Hill, West Sussex
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:/ more fuel=more weight :/ :/
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Dell
Member
Registered: 20th Feb 03
User status: Offline
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I had the exact same prob with my 1.2 punto, when the tank got to less than 1/4 full you could really feel the difference in power. Sorry its not an answer..im just as confused as you 
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Ryan L
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Registered: 4th Mar 03
Location: Essex
User status: Offline
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surely its the other way round Mikee24, you should be going slower in theory Tam the diesel Man due to more weight, to be honest i don't know.
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c0r5a_gsi
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Registered: 17th Jul 02
Location: Gloucestershire
User status: Offline
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the other way round ?
Hows that working then does air weigh more than diesel ?
Think about it. Get an empty bucket and its well easy to pick it up, then fill that bucket with water, its a lot harder to pick it up. Just like the petrol in the car.
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Tam the diesel man
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Registered: 31st Jul 01
Location: Portsmouth
User status: Offline
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well thats how it works, didn't believe it either. talked to adam about this and it might be the fuel filter or something.
tried it again today and the same thing happened
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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Could it be that you have a lot of residue floating around in the bottom of your petrol tank?
Dave
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Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
User status: Offline
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Get the fuel pick up pump checked
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d0gz_bollox
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Registered: 8th Apr 02
Location: Walsall
User status: Offline
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fuel looses its octane over time. most folk usually only have over half a tank if they've recently filled it up (i.e. fresh petrol) hence burning better.
complete blag that but it sounds good. ha ha
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3CorsaMeal
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Registered: 11th Apr 02
User status: Offline
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sometimes, cos the engine is pulling fuel from bottom of tank, its easier for fuel pump to do so with a full tank because of the extra gravity, less fuel means lower pressure at bottom of tank.
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d0gz_bollox
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Registered: 8th Apr 02
Location: Walsall
User status: Offline
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another good blag
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3CorsaMeal
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Registered: 11th Apr 02
User status: Offline
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d0gz_bollox
Member
Registered: 8th Apr 02
Location: Walsall
User status: Offline
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The extra weight in the back of the car due to the fuel lifts the front of the car up lowering the amount of weight on the front wheels allowing them to turn alot easier.
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CRB 553
Member
Registered: 5th Apr 02
Location: NE Drives: Punto GT
User status: Offline
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got nothing to do with pressure or lack of fuel or weight transfer lol.
Personally i think ur imagining it, also think there is a placebo effect of just having filled ur car up that makes u think its goin faster.
Like how if u use 10K boost even though it made f all difference u really can feel it pull like a bitch
[Edited on 16-12-2004 by CRB 553]
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Ajones_17
Member
Registered: 20th Jun 02
Location: Sunny Wigan Drives: BLACK 03 VTS
User status: Offline
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It could be connected with fuel starvation problems, alot of cars have this and tend to run poorly if they don't have much fuel in the tank. Just an possibility. 
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James_DT
Member
Registered: 9th Apr 04
Location: Cambridgeshire
User status: Offline
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Dragged up old post, but this is true with a lot of cars.
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