How difficult would this be to convert it to rear wheel drive?

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The floorpan is completely different. Easier to buy a 4x4 and transplant the vRS engine and related bits.

 

You'd have to cut out half the rear end and weld in the equivalent bits from a 4x4.

Buy a BMW

I read it as take an Octavia 4x4 and remove the drive to the front wheels.

 

As there is no centre differential and the propshaft is fed off the back of the front differential so you cant just lock off the output to the front, you would have to, at a guess, remove the front driveshafts and then reprogram the Haldex controller accordingly (lock it on basically, otherwise I don't think it would move at all).

 

But why? Much cheaper, simpler and better to just get a 3 series.

I think some people didnt bother reading what he put lol.

But yeah, not worth the bother just buy a rear drive car

Lol. Was just seeing if it was possible. Why buy a Beemer? Everyone sees a RWD Beemer. I've had my beemers and they are nice, but fancy doing something different. U don't see a skoda drifting these days do u..... It's all about being different and creating something unique.....

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Do it be different be good to see

Not straight forward conversion so most that have to ask won't be able to do

If it fails just go 4 wheel drifting ;/)

Solution. By 4x4 octavia. Transplant 3litre bmw lump and running gear or a nissan sr20det lump and rear drive running gear. Still looks like a skoda but rwd

What about the ECU? Do u think there would be much modifications needed to get the running gear in?

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What about the ECU? Do u think there would be much modifications needed to get the running gear in?

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Yes lots of mods and money.

As said above if you have to ask then you most likely wont have the know how to do it.

 

You could take it to a specialist who will then proceed to relive you of lots of hard earned.

 

I would think that if you did a job like this yourself with the specialist work out sourced then converting to RWD you probably wont see much change from 10 grand.

Yes lots of mods and money.

As said above if you have to ask then you most likely wont have the know how to do it.

You could take it to a specialist who will then proceed to relive you of lots of hard earned.

I would think that if you did a job like this yourself with the specialist work out sourced then converting to RWD you probably wont see much change from 10 grand.

Totally understand, quite obviously I don't know how to do it, hence asking the question in the first place. Was just curious, that's all :-)

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Shattered my dreams as well Joe. I had high hopes of converting mine to 4x4 one Day. Often wondered why nobody had done it. Now I know :(

Edited 15 September, 201411 yr by Paul thornton

When I'm rich (pa h ha ha ha!!) I'm gonna blow £15k on making a monster RWD Octavia VRS!!!!

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You will need more than that ;/)

You will need more than that ;/)

Yeah you wouldn't get much change from £30k if done professionally

Yeah you wouldn't get much change from £30k if done professionally

Well I'd be mega rich so doubling my budget would be no issue :-p lol

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Want to see how hard it is to do a 4x4 conversion on a fwd car ?

Check this link out

http://www.vagcars.co.uk/forums/showthread.php?4819-Grahams81-Mk1-2-1T-Cupra-Engine-Build-Thread

Want to see how hard it is to do a 4x4 conversion on a fwd car ?

Check this link out

http://www.vagcars.co.uk/forums/showthread.php?4819-Grahams81-Mk1-2-1T-Cupra-Engine-Build-Thread

Amazing the work gone into that, unfortunately ive got to page 13 and its stopped loading pages?!?! [emoji19] lol

Just have a look at the citygo-go thread!

 

Now that's a lot of work!

 

Phil

I read it as take an Octavia 4x4 and remove the drive to the front wheels.

 

As there is no centre differential and the propshaft is fed off the back of the front differential so you cant just lock off the output to the front, you would have to, at a guess, remove the front driveshafts and then reprogram the Haldex controller accordingly (lock it on basically, otherwise I don't think it would move at all).

 

But why? Much cheaper, simpler and better to just get a 3 series.

 

There is a central diff, its located just infront of the rear axle diff

 

With no traction at the front, the clutchpack will be allowed to close and all torque will go to the rear wheel - the prop runs at 1:1 ratio

 

Wouldn't be a very good 4x4 system if it couldn't turn the rear wheels with no traction at the front

Its not a diff, its a clutch. The front/rear split is off the crown gear of the front differential and is always on, as you say, 1:1.

 

I was under the impression that it uses the ABS sensors to decide whether to lock up the coupling. Without drive to the front wheels, they won't spin, so it won't see a loss of traction at the front and have no reason to lock up. That's my theory, at least It is not designed to run without the front wheels, so really, I guess what it will do is anyone's guess. OP, please try it just to settle my curiosity.

Yeah that would be intersting... disconnect the front drive shafts and see what happens.

 

I think the car would get into a right flap!

 

Phil

Haldex uses clutch type technology but is a differential because of wait it does

 

Bit like an e-diff locker is still a diff locker, even though it nothing to do with the vehicles diffs

 

semantics aside,

 

the haldex is fed info from ABS and the engine ECU

 

Engine speed, torque and throttle position are fed to the haldex from the engine ECU

 

Wheel speed and longitudinal accelerationare fed to the haldex from the ABS ECU

 

The haldex manual only states that if the ABS signal fails, haldex won't engage

 

In this scenario there's no failure of the ABS unit, so its still sending out a valid signal stating zero wheel speed and no acceleration

 

My theory is that the haldex would see that the driver is trying to engage power (via the engine ecu) - but the car isn't moving (via the abs feed and its own speed sensor), so it will assume zero front traction and open the control valve allowing the plates to close

How difficult would this be to convert it to rear wheel drive?

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I think all the work that would be needed is to remove the front drive shafts, and possibly lock the front differential. 

 

Having said that, a Haldex clutch unit isn't designed to handle being permanently engaged, so I think it might also be a fast way of killing a Haldex.