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Discussion Starter · #1 ·
I don't currently own a R, but a friend of mine just picked up a 05 s60r. We were talking last night about his car, and he was saying that he wished there was a way to keep the AWD on at all times so there is always control going to all 4 tires equally. It's only when the car is slipping that the AWD kicks in at 50% to the rear. As I'm more familiar with VAG cars, I know that the computer systems can tweak many features on my beloved VW/Audis, like on the Allroad, you can adjust the "stock ride height" to give more lowering potential.<p>so is there a way to tweak the system into thinking it is "slipping" all the time so the AWD stays on? <p>Cheers <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 

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Re: how to get "Full time" AWD on the R?? (Sweet Danish)

You can't, you don't.<br>To lower, you install springs.<br>I suggest you do some reading here
 

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Re: how to get "Full time" AWD on the R?? (JRL)

I know how to install coilovers if I want to lower a car. I'm not talking about lowering, I'm asking about the <B>AWD option </B><IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0"> <p>and I have been reading, but being more of a newb with Volvos, and a newb with electrical systems and programming, I'm coming to the community for help. <IMG NAME="icon" SRC="http://********************/smile/emcocktl.gif" BORDER="0"> <BR><BR>
<i>Modified by Sweet Danish at 5:48 PM 5-14-2009</i>
 

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Re: how to get "Full time" AWD on the R?? (mlieras)

It's been well documented here that the Haldex stays at least partially engaged if the RPMs are above a certain point, probably around 3500 RPM. This was obvious to me in how the car handled differently while ice racing in 2nd gear (high revs) vs 3rd gear (low revs).<p>Point being, if your AWD is actually working properly (it might not be) there's really no reason to try modding the Haldex software IMHO, at least on 06-07s with the "pre-charged" Haldex.
 

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I wondered about this myself. I know R32's have an option to upgrade the haldex software to change the tq split, but the more I think about it....to me it seems like it's not worth it.<br>The beauty in haldex is that you don't loose as much power through the drivetrain as you would in let's say a suby w/ full time 50/50 split. Unless you do some serious rallying, I don't see the benefit. <p>Although, you say your friend has an 05? I think in 06 the haldex sw was upgraded to give the higher " pre-charge". This might be something worth looking into(have the rears pre-charged to 20-30%) But, Since I have an 06, I don't give a .... <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0">
 

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Re: how to get "Full time" AWD on the R?? (rushin_max)

Pre-charge really isn't all that much. It's a check valve installed in the hydraulic line that controls the clutch packs of the Haldex coupling. So there's pressure kept on the packs, which means that it reacts faster. <p>There's NO way to make the R's AWD system different. Not unless you have a LOT of expertise.
 

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Discussion Starter · #8 ·
Re: how to get "Full time" AWD on the R?? (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote">It's been well documented here that the Haldex stays at least partially engaged if the RPMs are above a certain point, probably around 3500 RPM. This was obvious to me in how the car handled differently while ice racing in 2nd gear (high revs) vs 3rd gear (low revs).</TD></TR></TABLE><p> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> ice racing <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote">Point being, if your AWD is actually working properly (it might not be) there's really no reason to try modding the Haldex software IMHO, at least on 06-07s with the "pre-charged" Haldex.</TD></TR></TABLE><p>It's not my car, but my friend isn't one for forums, so I thought I'd ask on his behalf. Currently the car is stock, although he is thinking of chippin it, everything works perfectly (no probs with AWD). He used to have an 04 (got totalled), so 2ish years later he picked up an 05. Mostly we are wondering <B>IF </B>there is a way to adjust the differential calculations, so it is more evenly distributed. For the 05, I believe that under normal use the haldex system sends 95% of the power to the front wheels. It sounds like it's just his personal preference to have more power distributed to the rear wheels; to each their own, right? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Discussion Starter · #9 ·
Re: how to get "Full time" AWD on the R?? (rushin_max)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rushin_max</b> »</i></TD></TR><TR><TD CLASS="quote">I wondered about this myself. I know R32's have an option to upgrade the haldex software to change the tq split</TD></TR></TABLE><p>Yes! Thank you, that's where I'm coming from; being a dubber, I'm familiar with R32s, so that's why our conversation progressed as it did, and this question arose. <p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rushin_max</b> »</i></TD></TR><TR><TD CLASS="quote"> but the more I think about it....to me it seems like it's not worth it.<br>The beauty in haldex is that you don't loose as much power through the drivetrain as you would in let's say a suby w/ full time 50/50 split. Unless you do some serious rallying, I don't see the benefit. <p>Although, you say your friend has an 05? I think in 06 the haldex sw was upgraded to give the higher " pre-charge". This might be something worth looking into(have the rears pre-charged to 20-30%) But, Since I have an 06, I don't give a .... <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0"> </TD></TR></TABLE><p>He isn't doing any rallying right now, but you never know. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> ya, 2006 the haldex system changed for the third generation. (I'm catching on - gotta love wikipedia!! <A HREF="http://en.wikipedia.org/wiki/Haldex" TARGET="_blank">http://en.wikipedia.org/wiki/Haldex</A>)<p>Thanks for the great info!! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 

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Re: how to get "Full time" AWD on the R?? (Sweet Danish)

Haldex started to offer this software for the R back in 04, Volvo shut them down with various threats, etc. so it never happened and never will... unless you work for Haldex <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/sly.gif" BORDER="0">
 

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I tried the same question a while ago<p><A HREF="http://forums.swedespeed.com/zerothread?id=112375" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=112375</A><br>
 

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Re: how to get "Full time" AWD on the R?? (Sweet Danish)

haha... you said VAG cars...but in all seriousness, my dad owns a new passat. (not the CC) and a Eurovan. VAG galore.<p>The only thing would be a massive haldex swap. Or just disconnect the haldex and start rebuilding the driveshaft.
 

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Re: how to get "Full time" AWD on the R?? (BeerEngineer)

I think to really get at the issue, the reason that this was abandoned years ago is because of the weak point - the angle gear (or related components)... Yes, you can trick the software to do a LOT of things (I really wish we had someone that could get at it - custom SUM calibrated to work with stiffer springs - lowered or not - would make the suspension react SOOOOOOO much better (and the way it should have)), but we're stuck with what we've got.<p>So that being said, if you start to stress the stock components (as there are ONLY stock components available) even more-so than they are, well, stock, you're simply asking for trouble. With failed collar sleeves failing on stock cars being driven by people old enough to be my great grandfather, I couldn't imagine the aftermath of a heavier load on a more consistent basis.<p>I'm all about VAG, and I would mate with Quattro if I could, and am all about upgrading stock parts to make a car BETTER - but Audi has always built in a significant margin of error into their product - Volvo is at the very cusp (even beyond in some circumstances) when it comes to this car...<p>Did that answer your question well? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0">
 

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Re: how to get "Full time" AWD on the R?? (Sweet Danish)

Full time AWD on an R:<p><A HREF="http://www.subaru.com/vehicles/legacy/30r-limited/index.html" TARGET="_blank">http://www.subaru.com/vehicles....html</A>
 

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Re: how to get "Full time" AWD on the R?? (MagoonR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MagoonR</b> »</i></TD></TR><TR><TD CLASS="quote">Full time AWD on an R:<p><A HREF="http://www.subaru.com/vehicles/legacy/30r-limited/index.html" TARGET="_blank">http://www.subaru.com/vehicles....html</A></TD></TR></TABLE><p>I work at a dealer.<p>We just aquired a subaru franchise. Its right next to our Volvo/Mazda store. <p>I just might.........<p>Oh wait, I work at Toyota. I'll wait for a AWD 3.5L Camry with 6spd.
 

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Re: how to get "Full time" AWD on the R?? (Sweet Danish)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Sweet Danish</b> »</i></TD></TR><TR><TD CLASS="quote">so is there a way to tweak the system into thinking it is "slipping" all the time so the AWD stays on? </TD></TR></TABLE><p>Short answer: no.<p>Long answer: you really don't want a locked Haldex (50/50). There's no center differential, therefore you'd be crabbing all over the road every time the car left a straight line. To say nothing of the wear and tear on the entire drivetrain.<p>Tom.
 

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Re: how to get "Full time" AWD on the R?? (AthruC)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>AthruC</b> »</i></TD></TR><TR><TD CLASS="quote">Did that answer your question well? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"></TD></TR></TABLE><p>I think you (and everyone else) did quite well indeed answer my question. Kudos to all those that answered, I love the abundance of knowledge amongst the community! Thank you <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 
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