8v gear box ok for 16v conversion??

[BobbyT]

hi, just after a little advice! i am looking at getting a 2.0 16v lump shoe horned in to me mk1 soon, as i am on a budget, can i use the 8v gear box? the box seems in good condiction! now i am not bothered about top speed ( a ton will do me) but i would like a car that pulls well when over taking! will the 8v be ok? 

[Mk1Mad J - 16v]

  box will fit no probs but you'll need to put the mk1 flywheel onto the 16v engine

technically it should be quicker as the gears are a bit shorter - as long as you shift in time 

[BobbyT]

sweet, i'm not doing the conversion my self! the car would end up in bit's forever!!! lol 

[Mk1Mad J - 16v]

Its not actually that big a job, i'm going to do mine on the main road outside my house   

[BobbyT]

i'm sure it isn't, but i dont trust me self doing it! i dont mind fitting ice, or changing the oil and that sort of thing! maybe i'm just lazy! lol 

[16vbanger]

depending on which 8v box you get the ratios are the same as the 16v I know both the 86-87 8v boxs I have are the same ratios  other than 5th and according to http://www.scirocco.org/gears/ there should be a minor top speed increase on the 8v box 

[Mk1Mad J - 16v]

depending on which 8v box you get the ratios are the same as the 16v I know both the 86-87 8v boxs I have are the same ratios  other than 5th and according to http://www.scirocco.org/gears/ there should be a minor top speed increase on the 8v box 

  i had a stock 1600gti on a jetta box which did 140mph @ 5000rpm - explain?

the mk2's do have the same box for the 8v & 16v - the extra speed comes from the extra rev's of the 16v - thats why they've got 160mph on the clock rather than 140mph

[16vbanger]

i had a stock 1600gti on a jetta box which did 140mph @ 5000rpm - explain?
 

thats what youd call an optimistic speedo 
and the 16v 160 speedo is more than a tad optimistic for sure as I have never had a valver past 135 and damn I've tried hard 

[Devon Joe]

I have a 2.0 16v 6a from an Audi 80 in my '89 16v, using an 8v gearbox with an 8v friction plate and the original 16v flywheel/pressure plate..

After ragging it round for a few months i would say the gearbox is the weak link as mine is now whining like a trooper- wish i'd gone for a cable-change box froma Passat- these are stronger than the mk2 boxes. You need the pedal box though but if you are paying someone to do the swap i reckon its worth the extra hassle/cost.

[Devon Joe]

And as for top speed i really doubt mine could do 130mph on either gearbox- dunno what VW thought the extra speedo space was for!

A 2.0 16v in a mK1 will be bonkers! Its loopy enough in a fatter Mk2...if its overtaking poke you want you aint gonna be disappointed