Author Topic: 1.8 turbo conversion  (Read 9390 times)

Offline stainesy

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1.8 turbo conversion
« on: 13 October 2011, 20:52 »
I'm seriously thinking about doing a 1.8 turbo conversion but have never done a conversion before. What do I need to do the conversion?

I mean like what parts do I need in total?

Offline Dan_GTi8v

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Re: 1.8 turbo conversion
« Reply #1 on: 13 October 2011, 20:57 »
I'll try and dig up my shopping list when I did mine
20vt conversion, sig pic coming soon!

Build thread http://www.golfgtiforum.co.uk/index.php?topic=167291.0

Offline Dan_GTi8v

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Re: 1.8 turbo conversion
« Reply #2 on: 13 October 2011, 21:03 »
this is just my list, I'll look over it in a bit as I'm in the middle of cooking dinner atm  :grin: Obviously some things are up to you and the code can be any transverse 1.8t (as opposed to longitudinal fitted ones like those in the U.S)

*Cable to hydro clutch parts (master cylinder, slave cylinder, and fluid lines)
*Engine and Gearbox brackets
*Engine and Gearbox mounts
*Engine AUM
*Gearbox 02a
*Intercooler
*Boost pipes
*VR Clutch
*ABF Flywheel
*Downpipe from QPeng (ask Kells about his though, same price and better quality)
*Sports cat (for no messing about at MOT)
*MK4 PAS Pulley
*SAI block off plate
*Forge TIP
*Forge 007 recirculating diverter valve
*modified loom (give rubjonny a pm or I think topher knows someone who can do it as well)
*ECU immob defeated and 2nd lambda mapped out (Topher did this for me along with a stage 1 map)
*16v starter motor

I'll add to it as I remember anything else :)

There will be many things you forget about or wont know you need until you come to it. I started from an 8v GTi, ideally you wanna start with a 16v as a lot of the work will be done for you.

what are you starting with? anything under a GTi would need other stuff as well such as bigger brakes etc
« Last Edit: 13 October 2011, 21:09 by Dan_GTi8v »
20vt conversion, sig pic coming soon!

Build thread http://www.golfgtiforum.co.uk/index.php?topic=167291.0

Offline stainesy

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Re: 1.8 turbo conversion
« Reply #3 on: 13 October 2011, 21:42 »
I will be starting with my 8v gti. Have been thinking about more power for a wile.
Debating weather to buy a VR6 and transfer all my mods over to it or to do a conversion to mine.

Offline Wayne

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Offline F17BAD

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Re: 1.8 turbo conversion
« Reply #5 on: 14 October 2011, 10:51 »
http://www.golfgtiforum.co.uk/index.php?topic=124485.0 :afro:

That thread is pretty useless really

You will need more than above too, new engine mounts and a exhaust with a 2.5" bore like jetex are a must.

It's no cheap game. The VR6 route would be easiest and cheapest
  


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Offline stainesy

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Re: 1.8 turbo conversion
« Reply #6 on: 14 October 2011, 11:39 »
http://www.golfgtiforum.co.uk/index.php?topic=124485.0 :afro:

That thread is pretty useless really

You will need more than above too, new engine mounts and a exhaust with a 2.5" bore like jetex are a must.

It's no cheap game. The VR6 route would be easiest and cheapest

Yeah but it's just the fuel cost after though.

Offline Dan_GTi8v

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Re: 1.8 turbo conversion
« Reply #7 on: 14 October 2011, 11:52 »
Anyone can go out and buy a VR6 :P

I'd say its worth doing the conversion not only because it will be a 1.8t! but doing it yourself you learn a lot about the engine and how it works, with my 8v it was always a bit of guess work and forum searching trying to find solutions to problems, but now I can say I know what 99% of the stuff under by bonnet does, where all the pipes go, if I do get a problem I know what the likely causes are and how to fix them :)

One tip I'll give toy if you do decide to go for it is plan to spend over your budget  :grin:
20vt conversion, sig pic coming soon!

Build thread http://www.golfgtiforum.co.uk/index.php?topic=167291.0

Offline Wayne

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Re: 1.8 turbo conversion
« Reply #8 on: 14 October 2011, 12:47 »

Yeah but it's just the fuel cost after though.


Worth remembering a 1.8t remapped is not that much better on fuel.  :smiley:
Quote from: Diamond Hell
You suck at buying cars, please take the pointy D hat from Wayne and go sit in the corner.

Offline Dan_GTi8v

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Re: 1.8 turbo conversion
« Reply #9 on: 14 October 2011, 15:18 »
mine on a stage 1 is about the same as my 8v gti but I also have a pretty bad boost leak somewhere that needs sorting.

ATM I'm trying to find a local vagcom so I can check my fuel trims, probably end up buying one though as I can see myself needing it quite a few times to see if its getting any better. If you do the conversion adding vagcom to the list of parts needed would be a good idea  :laugh:
20vt conversion, sig pic coming soon!

Build thread http://www.golfgtiforum.co.uk/index.php?topic=167291.0