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4.11 LSD XR6 N/A 

 

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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 8:37 pm 
Fordmods Junkie
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nonricer wrote:
what's the problem with asking questions



none! :roll:



take the car down the quarter & see what it can do 1st .... then try a different ratio .... say some where in between what ya got & 4.11
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 8:37 pm 
Stock as a Rock
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I think its the questions and not thinking first mate. 4.11 is very low low for a 6speed. I wouldnt even put them into my ef on the street.
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 8:38 pm 
Getting Side Ways
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NSW, Australia

nonricer wrote:
ok so something like 3.45 would be more acceptable for a road car. what i want to find out what diff ratio to use to get in the 13's and a every day drive with around 200 rw kw. i am currently driving my fathers 2004 ba xt 4 speed but am thinking of a bf xr6 with the 6 speed for my p's.


So do you currently have this car? Or just asking for the future?

 

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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 8:45 pm 
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nonricer wrote:
what's the problem with asking questions


No problem asking questions. Just that we get the same s**t every school holidays. I take it you are still at school. Do you realise what it will cost you to get an NA BF XR6 tp 200RwKw and into the 13 sec bracket?
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 8:52 pm 
Stock as a Rock
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Here is a thread on here of someones ba/f thats around 220rwkw. Cant remembers his name but its worth a read if your looking/wanting to do it
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 9:11 pm 
Oompa Loompa
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Ride: 2004 ford falcon xt ba mk2

Location: North Western Sydney
NSW, Australia

currently driving a ba xt but want a bf xr6 for my p's
i know it sounds stupid but i want to be able to beat my friends silvia non turbo and integra type r, skylines etc.
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Sun Jul 07, 2013 9:16 pm 
Fordmods Junkie
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Wed Jul 17, 2013 3:45 pm 
Stock as a Rock
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i had it in my 4 speed xr6... ran fine but yeah 6 speed i dont know
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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Thu Jul 25, 2013 12:46 pm 
Getting Side Ways
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I pretty sure that 4.11 gears were originally for cars running 30-inch or taller slicks, a long first gear, and wanting to hit the end of the quarter-mile doing almost redline in top gear. Probably not very practical for a street car on 25-26 inch tyres running a 4.17 first gear (that's 17.1 turns of the crank for one turn of the axle). Even the 2.39 first gear of the BTR 4-speed can get a good launch with only 3.9 gears (9.3 crank to axle ratio). Anything more than 3.45 with the ZF, and the car will probably be ahead of the engine, waiting for the revs to catch up :lol:

 

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 Post subject: Re: 4.11 LSD XR6 N/A
Posted: Thu Jul 25, 2013 2:42 pm 
Getting Side Ways
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efxr6wagon wrote:
I pretty sure that 4.11 gears were originally for cars running 30-inch or taller slicks, a long first gear, and wanting to hit the end of the quarter-mile doing almost redline in top gear. Probably not very practical for a street car on 25-26 inch tyres running a 4.17 first gear (that's 17.1 turns of the crank for one turn of the axle). Even the 2.39 first gear of the BTR 4-speed can get a good launch with only 3.9 gears (9.3 crank to axle ratio). Anything more than 3.45 with the ZF, and the car will probably be ahead of the engine, waiting for the revs to catch up :lol:



Nicely put bloke, nicely put....... :)

 

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