Mk3 gti gearbox question ( diesel gearbox in a petrol car ???) questions

[jonnybravo]

After having to nurse 3rd gear on my recent trackday I'm gonna be changing the gearbox, SO...... Rather than just swapping for another standard box I wanted to no would a diesel equivalent fit ( I'm guessing the diesel box would have lower ratios thus giving better acceleration ??)

Any help , tips or thoughts or even code numbers I need to research would be really helpful

Thanks

[tweed]

Wrong way round I think

[CJA321]

Diesel box has a longer final drive i think.

Some people use them for the 20vt conversion for that reason

[jonnybravo]

So using a diesel box would be pretty pointless then ?

Would a vr6 box make any difference or am I just pissing in the wind ?

Should I just source a standard box and updated clutch n be done with it then ?

Thanks

[thai-wronghorse]

Im assuming this is to go on a 16v ? If so you'd be best off keeping the O2A gearbox and sticking in a 3.94 or 4.2 final drive and a lightened & balanced flywheel.  Acceleration will be improved dramatically.

[Len]

Would help if we knew what you were trying to achieve by this!
Is it for a trackday car?

[tweed]

I would rather a longer box for motorway driving

[thai-wronghorse]

He has "trackday weapon"  beneath his username.

[jonnybravo]

Yeah sorry for not making it clear the cars a mk 3 2.0 16v and seeing as the box has gotta come out I thought maybe a diesel box would have lower ratios ( for better acceleration , which is what I want )

And yeah it's a trackcar I've got

[Len]

He has "trackday weapon"  beneath his username.

Yea I did see that, which is why I asked just in case he had a sane Mk3 as well.