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General => General discussion => Topic started by: BobbyT on 27 February 2006, 16:47

Title: 8v gear box ok for 16v conversion??
Post by: BobbyT on 27 February 2006, 16:47
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?  :smiley:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 27 February 2006, 16:50
 :nerd: 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  :smug:
Title: Re: 8v gear box ok for 16v conversion??
Post by: BobbyT on 27 February 2006, 16:52
sweet, i'm not doing the conversion my self! the car would end up in bit's forever!!! lol  :grin: :rolleyes:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 27 February 2006, 17:17
Its not actually that big a job, i'm going to do mine on the main road outside my house    :smug:
Title: Re: 8v gear box ok for 16v conversion??
Post by: BobbyT on 27 February 2006, 17:21
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  :grin:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 27 February 2006, 19:08
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  :smiley:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 27 February 2006, 19:16
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  :smiley:

 :undecided: 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 :nerd:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 27 February 2006, 19:59
Quote
i had a stock 1600gti on a jetta box which did 140mph @ 5000rpm - explain?
 

thats what youd call an optimistic speedo  :wink:
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  :grin:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Devon Joe on 27 February 2006, 23:25
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. :smiley:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Devon Joe on 27 February 2006, 23:35
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  :shocked: :laugh:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Judderi on 28 February 2006, 08:58
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. :smiley:

You dont need to change the pedal box. You can buy an adapter that converts the clutch from hydraulic to manual. Easy peasy. You will however need to change the shifter box, but thats easy done too. Also they may be stronger but not by much. I still managed to break the diff rivets and create a rather large hole in the bell housing taking with it the clutch, flywheel and box.
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 28 February 2006, 12:45
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  :smiley:

 :undecided: 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 :nerd:




Ooops, i really shouldn't post when i'm stoned - that should have been 5500rpm  :laugh:

dunno what happened to my reply lastnight  :rolleyes: can't be bothered to type it again so:-

Toofunky house - go for it, ignore these people they dont know what they're talking about - i've done it so i know  :smug:

16v banger - fix that banger  :kiss:

mk2litre16v - he's on a budget so is cable change really worth it  :undecided:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Judderi on 28 February 2006, 12:49
Hey i didnt suggest a cable change box, just offered advice. You still pissed?
Title: Re: 8v gear box ok for 16v conversion??
Post by: Devon Joe on 28 February 2006, 13:57
Whoa that pony guys, I guess we all speak from experience eh? Only trying to help! :smiley:

Am gonna look into the cable change conversion myself but yeh maybe not if you are on a budget!

Mk2GTI2.016v- i was told swapping pedal boxes saved having to convert anything, but if it makes the job easier- now thats my kind of option  :grin:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 28 February 2006, 15:03
Hey i didnt suggest a cable change box, just offered advice. You still pissed?

 :kiss: Im not pissed mate, just get annoyed when people try and contradict something i know to be fact!!!

I probably misread the cable change bit and i didn't realise there was 2x  2litre 16v's posting  :embarassed: but as hes on a budget thats probably not worth looking into


 :nerd: so Toofunkyhouse - back to your question


your mk1 box will fit the 16v lump if you use the mk1 flywheel  :wink:

a mk2 box will give you better top end compared to the mk1 box - either 8v or 16v (lets just leave the debate over which is quicker of these 2 open)


 :smug: for the record my mates mk2 8v went off the clock regularly, weve had his 16v to about 150mph but he's too pussy to push it that bit further - i've got no doubt it would go all the way :smiley:

my mk1 with the jetta box didn't have a speedo (It snapped 6 cables so i gave up replacing them) - 5000rpm was about 130mph, i had plenty of people trying to keep up with me confirm this over the 4 years i had the car  :nerd:

I've never known a gti to have an optimistic speedo  :shocked: - if it doesn't reach the top of the redline in top it needs fixing  :smug:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 28 February 2006, 16:31
well ok then how many other valver owners have done this claimed top sppeed of 150mph  :shocked: or was it kph  :grin:  :tongue:
and its not just the one valver that I have driven and tried  :wink:
ours is a rusty banger but for £150 with a little test what can I expect  :wink:
Title: Re: 8v gear box ok for 16v conversion??
Post by: BobbyT on 28 February 2006, 17:45
thankyou all for your input! didn't think it would get so heated! :grin:  lol  will keep you posted on the outcome of the conversion!  :smiley:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 01 March 2006, 12:14
well ok then how many other valver owners have done this claimed top sppeed of 150mph  :shocked: or was it kph  :grin:  :tongue:
and its not just the one valver that I have driven and tried  :wink:
ours is a rusty banger but for £150 with a little test what can I expect  :wink:

i need a "yawn" smiley  :smiley:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 01 March 2006, 12:54
well ok then how many other valver owners have done this claimed top sppeed of 150mph  :shocked: or was it kph  :grin:  :tongue:
and its not just the one valver that I have driven and tried  :wink:
ours is a rusty banger but for £150 with a little test what can I expect  :wink:

i need a "yawn" smiley  :smiley:

well where are all the other valver owners at then doing 150 not  :laugh:
so whats a vr6 supposed to do 200mph  :laugh:
now I know that gear calculator says them silly speeds like 150 for a valver and I agree the wheels can do that when the car is on axle stands just  :wink: but the mk2 is hardly aerodynamic is it if it is so is my house and our 72 type 2 camper  :laugh:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 01 March 2006, 13:43
(http://i22.photobucket.com/albums/b336/MK1MADJ/YAWN.gif)

Wake me when you've actually tried  :kiss:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 01 March 2006, 13:53
Lol  was it a dream a standard mk2 16v will never do 150mph unless it is chained to the back of a real sports car  :wink:
yes I have tried many valvers out and so have my mates I am not a 14 year old dreamer who looks at the 160 mph speedo and says wow thats phat it can do 160 unlike you it seems  :tongue:

Like I say where are the rest of the 16v owners off here backing you up ? they wont cause it cant  :wink: the previous owner of our valver blew it up at 135 as thats all it could do and he was trieing for too long hence killing it Lol

and why do real sports cars capable of 150+ cost 10x the price of a mk2 valver even when the valver was new Oh thats right it was all a dream Lol
now the other issue is the germans did'nt and still dont as far as I am aware produce a standard car capabale of more than 155 hence why beemers and mercs are restricted to 155 due to some long term agreement
now of course they can be deristricted but are no longer standard when deristricted  :wink:

now dont forget I am waiting for some of the real valver owners to pipe up and maybe I'll belive but only maybe as I know even with a 2.0 its not possible
so produce some hard core evidence other than the bloke in the pub with 450bhp out of his 1.3 golf cl and stop makeing yourself look silly young man  :wink:  :tongue:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 01 March 2006, 13:56
(http://i22.photobucket.com/albums/b336/MK1MADJ/YAWN.gif)
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 01 March 2006, 13:56
(http://i22.photobucket.com/albums/b336/MK1MADJ/YAWN.gif)

I belive thats how you was when you saw this claimed 150mph  :laugh: :tongue:
Title: Re: 8v gear box ok for 16v conversion??
Post by: Mk1Mad J - 16v on 01 March 2006, 14:01
just spoke to another mate - 140mph@5500rpm all day

like i said - fix your car and stop bugging me  :kiss:
Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 01 March 2006, 14:08
Lol stop posting crap and I'll be quiet  :wink:
now like I say I know there is a whole heap of valver owners on here why no repsonce from them staeing your ridiculous claims ??? Oh I know cause it wont happen
now heres a line from the link thats below
Quote
the German industry's voluntary restriction of 155

http://www.automobilemag.com/reviews/0411_bmw_m5/ Hm why is a bigger heavier more stable c ar only just faster than a golf ??????  :tongue:

Oh and the banger dont need fixing its out 7 days a week with no worries other than when it will kill its next gearbox  :grin:
Title: Re: 8v gear box ok for 16v conversion??
Post by: mk2madman on 01 March 2006, 21:06
Ere

Whats all this sh!t about 155 mph restriction?????? :grin: :grin:

Its just a program  :grin: :grin:

And of course it can be re written?

New m3s and m5s do 180 when remapped! :smiley: :laugh:

Title: Re: 8v gear box ok for 16v conversion??
Post by: 16vbanger on 01 March 2006, 23:47
Lol I know jack sqaut aboout beemers and mercs  :wink:
Title: Re: 8v gear box ok for 16v conversion??
Post by: mk2madman on 02 March 2006, 09:00
That wasn't my point !
Just because the manufacturer said it doesn't go above 155 doesn't mean it wont!!!!!

and Ive had my car at 140 on the clock for a long time!!!!

Most of us don't have GPS speed systems we have what you call a speedo!!!

So when it says 140 thats how fast I'm going!!!
Now i know speedos ain't all ways right but when the bloke in front is driving a nice new Mk4 gti and his speedo says a about 140 what else can i believe

And as we all no VW are all way conservative with  there figures
Title: Re: 8v gear box ok for 16v conversion??
Post by: sc on 04 March 2006, 08:28
never trust a speedo to give yo an acurrate reading in my old bm i had the speedo reading 140ish and a mates road angel reading around 115, quite a big difference there.
plus in actual real world terms when do you get to do these speeds? i used to have a bmw which cruises easily at high speeds yet that still rarely got taken over 100.
wouldn't like to attempt such sppeds with my new shoebox aerodynamics lol
Title: Re: 8v gear box ok for 16v conversion??
Post by: BobbyT on 06 March 2006, 16:41
well just spoke to midland vw, they reckon for 5 quid that they can shoe horn in the millennium falcon engine, should do 0 to light speed in about .0000000000000001 of a second! will need to get the speedo changed, and a navi computer up grade! i don't want to blink and drive in to bradford  :laugh:  :rolleyes: