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Old 06-12-2004, 01:36   #1 (permalink)
Formerly EAII_Fairmont
 
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Slow AU!

Hey Guys,

I have a 2000 AUII Forte with a K&N panel filter, 2.5in exhaust and Genie Extractors. The car feels soooooooo slow until it hits 2500rpm. It goes pretty well in high revs, but I think an Excel could beat me off the line! The car seems to be running fine and doesn't chew fuel or anything, it has also just had the plugs and leads changed.

I thought the BBM may have been unplugged, but that wasn't the problem. How do I extract the fault codes from an AU? Does anyone have any ideas? It's really annoying me.

Daniel
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Old 06-12-2004, 12:33   #2 (permalink)
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Re: Slow AU!

Bar the K&N I have the same mods on my AU XR6. It too is pretty lame under similar revs. But when the sucker hits mid range and top speeds it pulls pretty hard.

The T series intake has helped the throttle response well but low down go in my opinion is crap.

As for the excel beating you on take off. Believe it. I had one and the first gear in it caned (99 x3 twin cam). Even on a quick downshift or two the engines snap violently forward when accelerating. The exhaust system when it was fitted dulled some of that tho.

With a standard falcon you just gotta get past first gear before the excitement kicks in. From then on it's ok.

Can't help you on the fault codes sorry.
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Old 06-12-2004, 17:48   #3 (permalink)
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Re: Slow AU!

Quote:
Originally Posted by EAII_Fairmont
Hey Guys,

I have a 2000 AUII Forte with a K&N panel filter, 2.5in exhaust and Genie Extractors. The car feels soooooooo slow until it hits 2500rpm. It goes pretty well in high revs, but I think an Excel could beat me off the line! The car seems to be running fine and doesn't chew fuel or anything, it has also just had the plugs and leads changed.

I thought the BBM may have been unplugged, but that wasn't the problem. How do I extract the fault codes from an AU? Does anyone have any ideas? It's really annoying me.

Daniel
Is the car auto or manual?
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Old 06-12-2004, 18:32   #4 (permalink)
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Re: Slow AU!

A possible factor, I think larger exhaust systems increase top end power at the expense of low-end power. If this is the problem, a diff ratio upgrade will be the solution. Ford are idiots for even thinking about using 3.08s with the tall BT-R ratios anyway.
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Old 06-13-2004, 00:45   #5 (permalink)
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Re: Slow AU!

I think the diff has a lot to do with it. The EB was a 3.27 and would eat the AU for breakfast off the line.

It was doing it before I put the exhaust on. Maybe I've just gotten used to it and need more power! It's a bit strange though that as soon as the car hit 2500rpm, you can actually feel the step up in power. It's like when a turbo spools up and kicks in, but on a lesser scale. Thats why I thought the BBM may have been disconnected or similar.

I will be getting a Crow Stage 2 possibly 3 (if I can get away with it without ECU mods) in the next month or so, that may help it. After that an XR6 3.45 LSD diff centre. Does anyone know if the E-series centres will fit the AU?
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1992 AXII Telstar TX5 Ghia

121kW 2.5L DOHC V6 in a car that weighs 1100kg's and looks like a 4 banger from the outside......SLEEPER!

1988 EA S Pak 3spd CFI.....Soon to be a 250rwkw HSV eating machine.
Latest update......MPFI!!
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Old 06-13-2004, 02:54   #6 (permalink)
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Re: Slow AU!

if auto = BIG problme off teh mark

also forte = 3.08:1 open diff = no good for take off

i switched to manual and 3.7:1 lsd and hell try catching me now
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Old 06-13-2004, 05:53   #7 (permalink)
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Re: Slow AU!

Yeah I hate the diff! I will be getting a 3.45 LSD asap.

I just think something must be a miss by the big surge of power that comes in at 2500rpm. It's a very very noticable jump in power, surely it can't be normal. From memory the BBM doesn't change till 3800rpm, so it's not that. I got no idea.
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1992 AXII Telstar TX5 Ghia

121kW 2.5L DOHC V6 in a car that weighs 1100kg's and looks like a 4 banger from the outside......SLEEPER!

1988 EA S Pak 3spd CFI.....Soon to be a 250rwkw HSV eating machine.
Latest update......MPFI!!
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Old 06-13-2004, 05:56   #8 (permalink)
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Re: Slow AU!

EvilChief did you convert yours from auto??

I am looking at doing this to mine, but just wondering how different converting an AU is to an EA/EB. I have converted 2 E-series, so I am confident in doing the job myself, I just want to know whats different. How much did it cost you?
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1992 AXII Telstar TX5 Ghia

121kW 2.5L DOHC V6 in a car that weighs 1100kg's and looks like a 4 banger from the outside......SLEEPER!

1988 EA S Pak 3spd CFI.....Soon to be a 250rwkw HSV eating machine.
Latest update......MPFI!!
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Old 06-13-2004, 06:55   #9 (permalink)
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Re: Slow AU!

well the cost is much higher compared to teh E series due to the newer gearbox, however as for conversion there is not much diff at all. as far as wiring goes very similar, it all bolst straight up like if u get a complete kit you'll be right
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Old 06-13-2004, 07:00   #10 (permalink)
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Re: Slow AU!

what was the actual cost cause ive been trying to find out for a while and asking people but know one tell me thanks mate
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