850 AWD power capabilities?

[charlie-r]

Just wondering how much power the 850 AWD transmissions can take before they explode? Would the viscous coupling slip after a certain torque level e.t.c if anybody knows or has experience trying to make a 4wd Volvo Estate go far too quickly :eclipsee_

Cheers, Charlie.

[Dangerous Dave]

The weak link is the angle gear and connecting sleeve, the early variants (i.e. the 850 AWD) are more prone to wear as the later variants the connecting sleeve is designed to go first (and is the least expensive part to replace).

I am looking at putting a forged engine in mine and seeing how long it lasts.

[cherry1809]

Shem on T5D5 is making his 854 4wd, I can't imagine he's relying on standard stuff. Might be worth a look :)

[Biff]

I've seen a silver v70r from Norway with 350whp & 400lbs ft running standard gear & he reckons it's done 70k on the collar with over 300bhp.
The main problem is getting the power without a fat down pipe.
You need a well serviced awd system & constant rotation of the tyres though. I've just changed mine round & I need to sort a collar & pick my prop up sometime soon.

[charlie-r]

Hmmm very curious, if I was to get one forging would be the way, just wondered if they were bomb-proof enough or not

[charlie-r]

I've seen a silver v70r from Norway with 350whp & 400lbs ft running standard gear & he reckons it's done 70k on the collar with over 300bhp.
The main problem is getting the power without a fat down pipe.
You need a well serviced awd system & constant rotation of the tyres though. I've just changed mine round & I need to sort a collar & pick my prop up sometime soon.

A fat downpipe would not be problem :)

[Biff]

A fat downpipe would not be problem :)

It might mate when you see how little room there is, you can't even get the sodding thing off! :(

[theflyingbrick]

I reckon if the awd system was a viable option and could be done without the need of fabrication (I mean done at the back of my house lol) then it would make a powerfull 850 a worth while car (I hate the fact theyre fwd :( )

[theflyingbrick]

It might mate when you see how little room there is, you can't even get the sodding thing off! :(

im thinking straight piece of pipe straight out the side of the wing ;)

[Biff]

Hmmm very curious, if I was to get one forging would be the way, just wondered if they were bomb-proof enough or not

Going off fellow owners reports those who slag them off have usually had no or little experience of them. I wouldn't say bomb proof but usable. Just don't expect the same kind of launch as say a scooby, it's a lot more progressive.
I was going to keep mine fwd & fit an m66 but Shem talked me into getting the awd fixed.
Just need to sort the rest of it first. Lol

[Biff]

im thinking straight piece of pipe straight out the side of the wing ;)
My crazy mechanic mate wants one out the bonnet!
Computer says no. Lol

[claymore]

Hussain Holand has close to 500whp out of his xc70

[Biff]

Hussain Holand has close to 500whp out of his xc70

That's the guy! He's been busy again then? Lol

[Biff]

Just thinking out aloud here but my problem of intermittent "clutch" slip, when I had the box off the car the clutch looked pretty new.
Is it possible this slip (never in first or second & between 3-4000 rpm in 3rd, 4th & 5th could be my collar?

[charlie-r]

Hussain Holand has close to 500whp out of his xc70

good effort, I'd aim for around 400BHP+ if I went 4WD

[theflyingbrick]

My crazy mechanic mate wants one out the bonnet!
Computer says no. Lol

you say crazy......I say high five lol imagine the fun you cold have with some tennis balls stuffed down the pipe ;)

[Biff]

you say crazy......I say high five lol imagine the fun you cold have with some tennis balls stuffed down the pipe ;)

You'd get on well, he's the influence behind my orange bits...
Here's his engine;)
http://i33.photobucket.com/albums/d66/biff_3/null_zps3d85bf69.jpg (http://s33.photobucket.com/user/biff_3/media/null_zps3d85bf69.jpg.html)

[charlie-r]

Tempted to just buy a 4WD and see how much power it'll take

[Biff]

AWD mate, it's a fair bit of difference.

[theflyingbrick]

You'd get on well, he's the influence behind my orange bits...
Here's his engine;)
http://i33.photobucket.com/albums/d66/biff_3/null_zps3d85bf69.jpg (http://s33.photobucket.com/user/biff_3/media/null_zps3d85bf69.jpg.html)

ahh see hes my kind of guy lol ;) wait till ive finished my engine bay im sure itll be on par with his.....well itll certainly be a little different lol

[shemtek_racing]

The old angle gears are pretty weak. An s60r angle gear and later collar are a direct replacement :)

Most Subaru's have a viscous centre diff the same as the Volvo awd system.

[theflyingbrick]

why have more people not done this? from what I can see it would make sense....or is it a hard conversion to do? I mean is there a lot of fabrication involved or can you buy the parts and "bolt" it together??

[merc85]

why have more people not done this? from what I can see it would make sense....or is it a hard conversion to do? I mean is there a lot of fabrication involved or can you buy the parts and "bolt" it together??

You would need a 850 awd 1st to start with and i think there getting a little rare now,