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Model specific boards => Golf mk3 => Topic started by: arkeye on 22 August 2011, 18:30

Title: 16v engine conversion questions...
Post by: arkeye on 22 August 2011, 18:30
hi everyone, thinking about doing this mod. i have read this sticky http://www.golfgtiforum.co.uk/index.php?topic=124485.0

so just to clarify then. i can buy a 16v engine and bolt it straight in with the 8v gearbox?

what downside is there running the 8v gearbox? top end im not bothered about as i dont really intend going much over a ton at the best of times, as long as im not doing 6000rpm at 70mph!!!  :grin: :wink:

if there are big downsides then i will swap to the 16v gearbox and obviously change the clutch mechanism to a hydraulic one.

what are the parts i need? new engine mounts, engine, what else?

from the sticky it mentions about a new ecu can someone explain more about this? and anything i may have missed out would be great 
Title: Re: 16v engine conversion questions...
Post by: Wayne on 22 August 2011, 19:13
What car have you got at the moment. :smiley:
Title: Re: 16v engine conversion questions...
Post by: madmanmart on 22 August 2011, 19:32
I take it your running a GTI 8v? I have done this conversion myself.

I seriously would not run the 8v box, they are very fragile and will no doubt break.

You need:

Engine + box
Hydro clutch setup
Cable shift setup
16v engine bay loom
ECU
Transponder + chip in key
Title: Re: 16v engine conversion questions...
Post by: F17BAD on 22 August 2011, 20:54
8v box will be fine for dialy use, i swapped my old 8v box into the 16v car i had which i robbed the box for my S3 converison

the 16v car is going strong and the new owner rags it to death. its faster off the line than before.. but who knows how long it will last the way he drives

Id rather have the propper set up and run the hydro set up and ABF gearbox etc
Title: Re: 16v engine conversion questions...
Post by: arkeye on 22 August 2011, 21:35
yes i have an 8v gti.

could the 16v gearbox and hydraulic clutch system be fitted later down the line, after the engine is in and ive had some fun?  :evil:
Title: Re: 16v engine conversion questions...
Post by: F17BAD on 22 August 2011, 21:53
yeah
Title: Re: 16v engine conversion questions...
Post by: benvictors on 22 August 2011, 23:11
If you are running the 8v box then you will just need the engine, engine loom, ecu and transponder box and chip if the ecu is immobilised.
I would replace the rear engine mounts and you will need to put the 8v flywheel, pressure plate and clutch on the 16v engine before fitting the 8v box.
Title: Re: 16v engine conversion questions...
Post by: Wayne on 22 August 2011, 23:52
Why do you want to fit a 16v. :huh:
Title: Re: 16v engine conversion questions...
Post by: arkeye on 23 August 2011, 07:09
Why do you want to fit a 16v. :huh:

more power and it will be a little project as i like tinkering
Title: Re: 16v engine conversion questions...
Post by: thai-wronghorse on 23 August 2011, 08:03
Not that much more power though, it's a lot of effort with doing the gearbox as well for quite a small gain imo. Will the 16v be staying standard?
Title: Re: 16v engine conversion questions...
Post by: Wayne on 23 August 2011, 08:06
Not that much more power though, it's a lot of effort with doing the gearbox as well for quite a small gain imo. Will the 16v be staying standard?

Spot on, does not make a lot of sense for the gains.
Title: Re: 16v engine conversion questions...
Post by: t0pgunner on 23 August 2011, 13:18
why not VR6 it up :)
Title: Re: 16v engine conversion questions...
Post by: arkeye on 23 August 2011, 15:34
why not VR6 it up :)

Yeah considering that also
Title: Re: 16v engine conversion questions...
Post by: t0pgunner on 23 August 2011, 15:44
end of the day better power gains and more tinkering because u have the possibility to also supercharge the VR but then u need to consider better stopping power tho  :laugh: :laugh:
Title: Re: 16v engine conversion questions...
Post by: arkeye on 23 August 2011, 20:28
i'd have to get new driveshafts for the vr conversion rite? (bit of a noob question i know  :embarassed:)
Title: Re: 16v engine conversion questions...
Post by: Gavv8 on 23 August 2011, 20:29
But i thought the 16v was supposedly better and faster in every single way compared to an 8v :wink:, sorry couldn't resist.
Title: Re: 16v engine conversion questions...
Post by: Bellend on 23 August 2011, 22:04
But i thought the 16v was supposedly better and faster in every single way compared to an 8v :wink:, sorry couldn't resist.

I think they're saying it's not worth it in the fact you can just buy a 16V.

Sometimes it is worth it though, I'm converting TO 8v.  :grin:
Title: Re: 16v engine conversion questions...
Post by: Gavv8 on 23 August 2011, 22:09
But i thought the 16v was supposedly better and faster in every single way compared to an 8v :wink:, sorry couldn't resist.

I think they're saying it's not worth it in the fact you can just buy a 16V.

Sometimes it is worth it though, I'm converting TO 8v.  :grin:
It's ok i was just being an ars*, if you just want to tinker i would have thought it would be more interesting/cost effective to go down another route to this.
Title: Re: 16v engine conversion questions...
Post by: F17BAD on 23 August 2011, 22:30
I liked my old 8v lump, was a good unit not that slow either.. was as quick as the 16v car i got for the gearbox..

id prob not bother converting from 8v to 16v  (unless your 8v lumo has died?)  other wise id go 20vt (can be expensive to do)  or VR6 it (can be done cheap)  we did Benvictors and the car moves well, its much better than a valver thats for sure