Rear wheels = more power?

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Re: Rear wheels = more power?

Postby coyote » Mon Dec 07, 2009 12:43 pm

teK-- wrote:Hey Tony any idea of approx price for a front LSD?


Too much.

I don't know what (if anything) is available for your car, but cheap plated ones used to go for around $1k, a torsen or suretrac would be more and a super tough plated one much more again. Throw in the cost of labour and you may as well sell the car and buy one that's comes with the front lsd.
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Re: Rear wheels = more power?

Postby Boxer » Mon Dec 07, 2009 12:54 pm

coyote wrote:
teK-- wrote:Hey Tony any idea of approx price for a front LSD?


Too much.

I don't know what (if anything) is available for your car, but cheap plated ones used to go for around $1k, a torsen or suretrac would be more and a super tough plated one much more again. Throw in the cost of labour and you may as well sell the car and buy one that's comes with the front lsd.

Its the one thing I miss in this Subaru compared to the MY02 STi. Lighting up the inside front under power is frustrating
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Re: Rear wheels = more power?

Postby subnub » Mon Dec 07, 2009 1:33 pm

teK-- wrote:If anything I would have felt that AWD made it easier for the driver on the skidpan, but not necessary quicker than RWD since for a smaller engine like mine there is more driveline power loss and also of course the reduced ability to kick the back around. I was more referring to the skidpan being limited in the top speed you can attain, and also more technically based, which removes a lot of the advantage that more powerful cars have on the open track.

We're starting to get a little off-track here lol

But yeah for sure, logically speaking horsepower means little when trying to use it results in the tyres slipping. Not sure why you've mentioned drivetrain loss though, the amount of power you'd lose over RWD would be inconsequential, particularly in an environment where the RWD car would be able to put down far less power before the tyres slipped. Which do you think would be faster on a wet skidpan - 100awkw, or 110rwkw? 100awkw, or 300rwkw?

What I was getting at is that your times weren't purely a result of a potentially better suspension setup and higher level of driver skill - the fact that your car had much, much more traction in an environment that heavily benefits from it would have played a significant part. I'd suggest that, at the skidpan, a superior driver in a RWD car with a great suspension setup would seriously struggle to beat the times set by a lesser-skilled driver in a not-as-well set up AWD car with lots of traction, purely because on a slippery surface at low speeds the AWD is so much of an advantage (that's why we bought Libs!). Technical track layout or not, every time you skid around a cone or come to a stop in a gate and have to power away to the next one, the AWD would probably be worth a good second or two. That is very hard time to make up.

coyote wrote:Come on Marc, you know Skyline owners can't drive :D

I take it you mean the on/off way they sometimes transfer power to the rear? That's just the old ones (and I'm sure you know it's easy to fix).

Anyway, I'll leave this to people who've actually driven on skidpans, rather than try to be an Internetz expert.
Haha, I refuse to confirm nor deny these outrageous allegations :P

Nah I was referring to how they are RWD-biased and allow a certain amount of rear-wheel slip before bringing the fronts in, 32s do it heaps, 33 and 34 still do it to lesser extents. No idea about R35s, haven't driven one yet, still working on that :mrgreen:

Maybe you should come out to the skidpan one day Tony, you might learn something!
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Re: Rear wheels = more power?

Postby teK-- » Mon Dec 07, 2009 1:48 pm

It make a difference that the skidpan I drove on was not wet. I.e. just smooth, dry concrete. I was really hoping for rain to get the max advantage out of AWD but my raindance must not have been funky enough ;)
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Re: Rear wheels = more power?

Postby coyote » Mon Dec 07, 2009 2:16 pm

subnub wrote:Nah I was referring to how they are RWD-biased and allow a certain amount of rear-wheel slip before bringing the fronts in, 32s do it heaps, 33 and 34 still do it to lesser extents. No idea about R35s, haven't driven one yet, still working on that :mrgreen:


That's what I meant. I remember the first time it happened to me in an R32, I went "what the fark just happened?". There was certainly nothing progressive about it.

subnub wrote:Maybe you should come out to the skidpan one day Tony, you might learn something!


Maybe I will!
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Re: Rear wheels = more power?

Postby adhar » Sat Dec 12, 2009 5:14 pm

Stefan, do you have the 5 speed manual?

If so you could do some research to see if its the same 'box as the WRX (I think it might be) and convert it to rear wheel drive with this:
http://mrtperformance.com.au/component/ ... Itemid,32/

In case the WRX 'box is different to yours, it also does say:
For non turbo models and other turbo models, consult MRT.


Kinda defeats the purpose of owning a Subaru IMO but its a cheap easy way to get rear wheel drive... :P
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