Mk3 8v convertion.

[Spyda]

Hi guys,
I was thinkin about a 2.0L 8v convertion in my mk1 from a mk3.

Does the engine just fit right in, is it a easy convertion to do?
Would a 16v convertion be cheaper/better.

Basicly what are the pros and cons?

oh and what power does the 2L produce, due to new laws it cant be "performance" and 125kw per tonne.

[Golf Loon]

Both 8v and 16v bolt straight in with Mk1 mounts.

Fuelling is the hard part with either conversion.

[golf3]

As far as putting it into a mk1, there's no problem, but you'll need to get specifics off the other guys!!!

And my sales pitch - I got a motor for you, Mk3 2L 8v with 85kw standard...86,000kms on the clock... Make an offer

http://www.vwwatercooled.org.au/newforum/upload/showthread.php?t=3124

[Spyda]

Both 8v and 16v bolt straight in with Mk1 mounts.

Fuelling is the hard part with either conversion.

On a scale from 1 to 10 how hard? I would realy like to do it myself, hands on approach. (with help from dad and a few mechanic mates)
What do you think, to hard?

As far as putting it into a mk1, there's no problem, but you'll need to get specifics off the other guys!!!

And my sales pitch - I got a motor for you, Mk3 2L 8v with 85kw standard...86,000kms on the clock... Make an offer
http://www.vwwatercooled.org.au/newf...ead.php?t=3124

Thanks mate, just trying to get the knowledge at the moment. We where actaly planing to get a smashed mk3 and do it that way, with breaks, 'box and all in one.

If it doesnt work out ill know where to go

Any more info guys? Anything you've got would be sweet.

[Valver.]

You need to do it properly with the dianostic port and emissions control, otherwise you can never know if it's running at 100%. In other words, you're far better off to get a complete donor car and swap everything across - this is also WAY easier than splicing a Mk3 engine loom into a Mk1 fuse box. Far more modern and reliable too.

Very easy. You shouldn't even need wiring diagrams, because you just label everything as it comes out of the donor car

Not the greatest swap in terms of performance, though.

[Valver.]

...That said, you could run it on carb/s, and so avoid the digifant altogether I think that's the best part, though.

[Golf Loon]

...That said, you could run it on carb/s, and so avoid the digifant altogether

Thats what most 80s / 90s Aussie conversions did.

[luke_how]

Ed has done this conversion before and he could be helpful to you, send a pm to TassieGTI to get his contact info.

[86gti]

I'll be putting the 2E mk3 8v motor out of my mk2 into my mk1 later in the year.
straight forward, but ill be running twin dellortos after a few mods....
The mk2 is to cop a 16v first.

[Spyda]

...That said, you could run it on carb/s, and so avoid the digifant altogether I think that's the best part, though.

Whats digifant?

Ed has done this conversion before and he could be helpful to you, send a pm to TassieGTI to get his contact info.

Awsome thanks mate

Valver you say not a great convertion in terms of performance. I just want it to go harder then the 1.6 in there now and maby take down some ricers, represent! Will it be able to do that at least?

How much power will it make with a few little mods like full exhaust, port and polish, etc?

[Valver.]

Digifant is the Bosch electronic fuel injection used by VW in many models. It comes in 1, 2 and 3 form, but the operating principles are much the same. Mk3 8vs are Digifant 2 from memory, and come in both OBD1 (on-board diagnostic phase 1) and OBD2 95> forms.

IIRC, the 2E is the only OBD1 Mk3 8v motor, the AGG and ADY are both OBD2.

I think Digifant is great, but a lot of people disagree, but I think this is often because most conversions are missing vital parts and so never run properly - this is why you should use a complete donor car if keeping the factory injection/Digifant.

Anyway, in short, Digifant is what a Mk3 8v motor will come with to run - if you ditch it, it's either carbs or a standalone computer.

Mk3s have 85kW and 166Nm - power figure is quite close to a Mk1 GTI but a better spread of torque, due to the bigger capacity. They don't rev very well at all in 2.0 form, though.

Plenty of power to upset most rice "rockets", but won't set the world on fire

The Mk1 2.0 8v that Golfwise built lives up the road from me and trundles past smoothly everyday - apparently it went really well with the carb too

Certainly more poke than the 1.6

[Spyda]

Awsome, thanks mate, your a gun.

I will be looking for a complet donor. Cheers for the help and im sure i will have more questions later on.

Thanks again.