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Author Petrol query
Skylined
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Registered: 27th Sep 05
Location: Sideways, Surrey
User status: Offline
5th Feb 10 at 17:17   View User's Profile U2U Member Reply With Quote
Got a RR sesh tomorrow so am wanting to upgrade to v power for the run.

So tank is in the red atm, if I fill up with v power now will it automatically adjust the fueling/air flow to run better?

I recall hearing that it takes a tank or two for the ecu to realise and if u want to adjust straight away you have to disconnect the battery to reset it all?

Any help appreciated
AlexW
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Registered: 25th Oct 08
Location: Essex
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5th Feb 10 at 17:40   View User's Profile U2U Member Reply With Quote
Depends on the car/engine. Some cars wont adjust at all.
Skylined
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Registered: 27th Sep 05
Location: Sideways, Surrey
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5th Feb 10 at 17:48   View User's Profile U2U Member Reply With Quote
Astra mk4 Gsi c20let
deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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5th Feb 10 at 19:29   View User's Profile U2U Member Reply With Quote
Probably not worth it tbh. If it did work and you won't use it all the time, it'll just be an unfair reading.
BarnshaW
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Registered: 25th Oct 06
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5th Feb 10 at 19:50   View User's Profile U2U Member Reply With Quote
how will it be an unfair reading?

just because you dont use that fuel daily? a RR session is to determine the maximum bhp out the car, putting decent petrol in for the run is not an unfair reading
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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5th Feb 10 at 19:51   View User's Profile U2U Member Reply With Quote
It'll only be fractionally better if anything at all anyway
Skylined
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Registered: 27th Sep 05
Location: Sideways, Surrey
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5th Feb 10 at 20:48   View User's Profile U2U Member Reply With Quote
Well i'm aiming for 200bhp and they're 197bhp standard - so fractionally better is what i need

Any input then?
daymoon
Premium Member

Registered: 1st Aug 08
Location: Selby, North Yorkshire
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5th Feb 10 at 21:57   View Garage View User's Profile U2U Member Reply With Quote
i am sure Ben G has his RR'ed with normal and super duper premiuim fuel and it made huge difference.
craig8
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Registered: 31st Dec 04
Location: Glasgow
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5th Feb 10 at 23:39   View Garage View User's Profile U2U Member Reply With Quote
i would disagree that the point in putting it on the RR is to get the biggest numbers you can, i would be more concerned about checking the car is running, boosting and fueling ect. correctly

in the vxr there is a deffinite difference on how it drives between regular unleaded and super unleaded, but i wouldnt know how much that is in numbers, it just feels much better

E36 328
Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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5th Feb 10 at 23:40   View User's Profile U2U Member Reply With Quote
Supposedly Makes a difference on the 350z engines, but apparently they are mapped on higher RON fuel originally.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th Feb 10 at 23:58   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by daymoon
i am sure Ben G has his RR'ed with normal and super duper premiuim fuel and it made huge difference.


yep

standard they are 225bhp, 236lb/ft.

with 95 ron my car made 238bhp, 280 lb/ft.

with 99 ron my car made 252bhp, 288 lb/ft.

i have no engine mods, just drove it properly from the first mile.

 
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