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Where do the I6's make maximum power? 

 

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Posted: Fri Apr 22, 2005 5:37 pm 
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Hmm dont know about them being limited to 255kph but they definately have a rev limiter i know that much. I just assumed the XR's were speed limited to 180kph as well...?

Ne way im still learning so doesnt matter if im wrong. :) Also the XR's do have the heavy duty tail shafts too and with the 3:45:1 LSD when would they peak out at (specifically the auto's)?

 

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Posted: Fri Apr 22, 2005 5:48 pm 
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I got my CFI engine up to 210kph on a counrty road wit about 10km of straigh road, the engine was revving and sitting on 4670rpm, and mine is out of an auto box and it is not speed limited

 

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Posted: Fri Apr 22, 2005 5:52 pm 
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ebjamie wrote:
I got my CFI engine up to 210kph on a counrty road wit about 10km of straigh road, the engine was revving and sitting on 4670rpm, and mine is out of an auto box and it is not speed limited


Yeah EA/EB's werent limited so thats why you can go past 200kph :)

 

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Posted: Fri Apr 22, 2005 6:22 pm 
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oh really, thats awsome.

My needle seems to go fastest from 80 to 150kph

So that would say to me that most other i6 would be quickest in that area also, hence making the most power to the wheels...right :?

 

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Posted: Fri Apr 22, 2005 6:26 pm 
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hornet wrote:
jonbays wrote:
Ford weren't entirely silly 3.23 diff manuals will peak in fourth just before the speed limit. Auto 3.23 in third 4900rpm at 180kmh. Its only the 3.08 diff auto cars geared to get the best economy for fleet buyers that were totally nobbled by the stupid gearing.


edit: For some strange reason I thought i had a 3.25 diff.. but it appears to be a 3.23. i'll check it tomorrow


ford never had a 3.25! :P 3.08/3.23/3.45 & 3.27's in the EA-ED's...

 

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Posted: Fri Apr 22, 2005 6:44 pm 
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ebjamie wrote:
oh really, thats awsome.

My needle seems to go fastest from 80 to 150kph

So that would say to me that most other i6 would be quickest in that area also, hence making the most power to the wheels...right :?


Yeah it just means that your power curve may start from like 80kph thats all (where the rev range is at its strongest), my XR6 starts to get its power in at 60kph until i hit about 105-110kph then it doesnt feel ne different. :?

Then again i could be wrong :roll:

 

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Posted: Sat Apr 23, 2005 10:28 am 
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The sweet spot in my EL seems to be between 80-130km/h :lol:

 

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Posted: Sat Apr 23, 2005 6:00 pm 
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Before I moded the stuffing out of my AUII XR6 VCT Auto, she was rev limited but not speed limited.

The rev limiter would bounce in around 5500-6000Rpm (red line). I had her up to 240kph (limit of the clock) then backed off. I could just keep my foot on the gas until she reached velocity, NO LIMITIING. Although after about 180kph it is a slow climb upto that speed.

From my recollections, I know the AU XR6's and 8's SEDANS had no speed limiter (regardless of auto or manual transmissions). Although the AU XR6's and 8's UTE's were speed limited due to their longer tail shafts.

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Posted: Sat Apr 23, 2005 7:00 pm 
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i see that ppl are talking about speed limiters alot? did the 94 ED Auto falcons have these? cause i have hit the 200kph mark and didn't notice any power restrictions what so ever and far as i know my car is stock since i bought it off a old granny a few months back...
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Posted: Sat Apr 23, 2005 11:35 pm 
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interesting to read. my 12/92 eb ghia hit's a limiter of some sort at 190-194 kmph. but my brothers old 6/93 eb fairmont wasn't speed limited. both auto.
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Posted: Sun Apr 24, 2005 4:37 pm 
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Pretty sure ED's didnt have speed limiters as well, only started with the EF's and onwards.

 

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Posted: Sun Apr 24, 2005 9:38 pm 
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Just curious, my mates car, an EF GLI, is an ex cop car, it says so in the handbook, that it was owned by vic police, its got the cop computer in it which isnt speed limited, jsut wondering it the tailshaft in that would be strengthened to withstand the higher speeds

 

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Posted: Sun Apr 24, 2005 9:56 pm 
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XRFan101 wrote:
Hmm dont know about them being limited to 255kph but they definately have a rev limiter i know that much. I just assumed the XR's were speed limited to 180kph as well...?

Ne way im still learning so doesnt matter if im wrong. :) Also the XR's do have the heavy duty tail shafts too and with the 3:45:1 LSD when would they peak out at (specifically the auto's)?


255km in a 5 speed ef XR6 is red line in 5th gear

 

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Posted: Sun Apr 24, 2005 10:43 pm 
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yobboford wrote:
prehaps they changed in the ef el range, cause i know of a few eb ed that can exceed 180, my manual does, and my old xr8 auto did too, both eb's.


hey redgie, who was being silly on the m5?????????


yeh thats true my bounced of the limiter at 184km/ph

 

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Posted: Sun Apr 24, 2005 10:50 pm 
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tickford_6 wrote:
255km in a 5 speed ef XR6 is red line in 5th gear


Fair enuf then, thats pretty crazy :)

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Just curious, my mates car, an EF GLI, is an ex cop car, it says so in the handbook, that it was owned by vic police, its got the cop computer in it which isnt speed limited, jsut wondering it the tailshaft in that would be strengthened to withstand the higher speeds


I would have to say yes it would most likely have the heavy duty tailshaft.

 

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