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EF xr8 power figure?? 

 

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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 2:28 pm 
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Here some food for thought, My EL xr8 series one- So it has same motor as yours, Pulled 123rwkw, stock, 127rwkw with full exahust, and now its upto 132rwkw with the pullies- well they were on there when it pulled 127rwkw...but now it makes 5rwkw more, I think the zorst has carboned up??

 

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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 2:50 pm 
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Ride: el xr6, r33 series 2 skyline

Power: 149 rwkw

Location: adelaide
SA, Australia

could it be the cat is blocked?

 

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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 3:43 pm 
Getting Side Ways
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Actually i think his car maybe running extremely rich (if im reading that sheet properly).

Theres some extra power hidden there.
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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 10:36 pm 
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how can u see it is running rich?????
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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 11:00 pm 
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AFR is 10 to 11 through the whole run, you're after something around 12.5:1 to 13:1 at full throttle for max power.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 11:33 pm 
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i wouldnt stress on that, as long as you haven't noticed anything obviously wrong with it.
looking at a dyno figure on its own is a s**t way to trouble shoot.

that air fuel ratio could be a number of things.
if you've never done it while you've had the car, i'd be getting new sensors.
coolant temp, air temp and oxy sensors, that guarantees the ECU knows what the score is and is doing what its meant to.
also do a search on cleaning the MAF wire, and check the base timing while you are d**k around.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Wed Jun 09, 2010 11:46 pm 
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I have an ef xr6, all the work done to it before the 1 and only dyno run was a full service as i had just brought it, Platinum iridium plugs, leads, k&n panel filter and a 2/12 inch redback system. and it pulled 113.9KW at the rears. 200k on the clock. I would imagine that the 8 would pull a couple more than that. Start looking for issues mate cause it sounds like your getting ripped off at the wheels.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 12:23 am 
Getting Side Ways
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kickn_it, theres 5kw difference from factory in EFs for the 6s and 8s, so stockers or thereabouts should pull about the same numbers. different dynos, different motors + trans and the condition of them all play a part.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 10:42 am 
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kickn_it wrote:
I have an ef xr6, all the work done to it before the 1 and only dyno run was a full service as i had just brought it, Platinum iridium plugs, leads, k&n panel filter and a 2/12 inch redback system. and it pulled 113.9KW at the rears. 200k on the clock. I would imagine that the 8 would pull a couple more than that. Start looking for issues mate cause it sounds like your getting ripped off at the wheels.


LOL f**k what!, yeah the dyno operator wants to 'under power' your car just to rip you off...

Like steady said clean maf, check timing, full service etc(mainline dynos are a better indication of power but its still a tuning device)
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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 12:03 pm 
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Power: 161 rwkw

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It may need new O2 sensors too.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 9:50 pm 
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im quite sure its the air sensor on the intake pipe. coz ages ago i was cleaning my air filter and i left the air sensor plug of and forgot then drove and the car was the same then i got home and looked and realised it was off???? how much is the sensor. My coolant sensor is fine dont no bout the )2 sensors
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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 10:20 pm 
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Power: 205 rwkw

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The sensor you are talking about sounds like the MAF sensor. If there was no difference between it plugged in and unplugged, then you definatey have a problem with it. Give Ford a ring to ask them how much for a new MAF - just for s**t and giggles! Then scour the for sale threads on as many forums as you can, or ask around cos you won't like what Ford have to say :lol:

 

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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 10:51 pm 
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Is it just me or is this all just a typo? the chart seems to indicate more like 148 than 108.4 does it not?
My NF 5.0lt had 101.4kw with LPG restrictions happening, but I drive her everyday and that means economy over power I'm afraid. my mates EF XR8 got 30 kw more and is stock apart from 3" exhaust.

 

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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 11:08 pm 
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fairlane6970 wrote:
Is it just me or is this all just a typo? the chart seems to indicate more like 148 than 108.4 does it not?
My NF 5.0lt had 101.4kw with LPG restrictions happening, but I drive her everyday and that means economy over power I'm afraid. my mates EF XR8 got 30 kw more and is stock apart from 3" exhaust.


thats 145 hp at wheels.. which is 108 kw.. :)
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 Post subject: Re: EF xr8 power figure??
Posted: Thu Jun 10, 2010 11:16 pm 
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as per usual it is just me :lol: :lol: :roll: I think I might go to sleep now :lol:

 

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