Vr6 conversion

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wolfsbitz
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Vr6 conversion

Post by wolfsbitz »

Simple question, has anyone done this who might be able to help me with some sort of direction as regards bellhousing, clutch and input shaft etc, my van is currently running a mk3 golf gti engine cranked over on a diesel bellhousing, mated to an aap gearbox.
I was going to go down the 5 cylinder route but have now changed my mind. So I have a complete 2.2 audi engine and a brand spanking new South African bellhousing for sale to fund my Vr6 conversion for sale if anyone is interested
Cheers

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Re: Vr6 conversion

Post by silverbullet »

You know that the VR6 isnt a very fuel efficient engine, even allowng for it being petrol?
The bellhousing bolt pattern is unique to the VR5 & 6, conversion kits are available from Winkler and Jaeger iirc
Finally, unless its a pickup you will have to raise the engine hatch about 80--100 mm or so, just to get it in. Its a tall engine.

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wolfsbitz
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Re: Vr6 conversion

Post by wolfsbitz »

Ok cheers, so I will definitely need some sort of adapter plate then? I'm not really concerned with fuel economy, I just want a nice torquey motor but something a bit more modern than the 5 cylinder audi engine but not so modern that I have to mess about with complex wiring , immobilisers and transponders etc

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Re: Vr6 conversion

Post by silverbullet »

The parts are out there, its just not a very popular choice afaik.
The VR6 loom will have all of the latter complexity, the straight 5 is probably easier but you will need a flywheel and relevant engine loom from an Audi 80/90
Have you got the SA engine bar?
You could always put an early manual 2.6 V6 from an Audi Coupe on the bellhousing. The hatch will still need raising though.

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wolfsbitz
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Re: Vr6 conversion

Post by wolfsbitz »

No I don't have the engine bar but I do have the complete wiring loom from the same car as the motor came from.

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Re: Vr6 conversion

Post by silverbullet »

Well you have got most of it then!
I have a genuine 1995 SA so I could in principle measure the engine bar for remanufacture (but I have enough going on right now)

Finding a SA flywheel will be the tricky bit, its recessed like a wbx or jx but takes a 240mm clutch and is 8-bolt like all 5-cylinder engines. You can't use the Audi one or modify it because it has relief in the back.

There ia a topic running about this ^^^ at the moment.

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Re: Vr6 conversion

Post by silverbullet »

It has just dawned on me that whilst the 20v 7A flywheel wont work, the quattro coupe flywheel might because it IS recessed for the clutch.
Needs a bit of a parts number search but I would guess NG/MC engines use the same one.
The clue is that my SA flywheel has trigger pins but the ecu doeant have sensors for them, so it must be from an other engine...

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Re: Vr6 conversion

Post by wolfsbitz »

The motor I have is a 2.2 10v kv from a coupe quattro with the 5-3-2 manifold, as far as I am aware it has no ecu, as it's running k-jet injection system controlled by vacuums from the metering head.

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Re: Vr6 conversion

Post by silverbullet »

Ok. Better get some pics posted of this fine motor then ;)

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Re: Vr6 conversion

Post by silverbullet »

The ecu matter is a red herring as far as the flywheel pins are concerned, but it does have to be the correct shape/offset for the release bearing to reach amd work the clutch.

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wolfsbitz
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Re: Vr6 conversion

Post by wolfsbitz »

This is part of the reason why I was looking for some info on a vr6 conversion also if I used the 5 cylinder lump I would essentially be putting in a engine that is 6 years older than my van as opposed to a vr6 which would be 6 years newer than my van.

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Re: Vr6 conversion

Post by marlinowner »

https://www.vw-winkler.de/Schwungscheib ... tra-Wunsch" onclick="window.open(this.href);return false;
?
1993 SA VW T25/T3 2.5i Microbus/homebrew camper
1981/1968 Marlin Kitcar TR6 Engine

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Re: Vr6 conversion

Post by silverbullet »

A few years is nothing and you said that you didnt want immobilizers and ecu's.
VR6 is all downsides afaics.
Winkler page translates as
"The 240mm flywheel. The strong Audi Quattro clutch is only required for high trailer load or for the 20V"

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Re: Vr6 conversion

Post by silverbullet »

Its worth knowing that VWSA were using k-jet 5's from 1991-1995...

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Re: Vr6 conversion

Post by adyjoad »

Wouldn't even consider the vr6, the wide angle Audi v6 is a much easier solution. Sits better in the engine bay, mates up to the bell housing you already have, cheap, available and robust.

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