Mk2 16v 2.0 Conversion- what gearbox should i use?

[Devon Joe]

Hi guys n gals,
Am about to replace 1800 block in my '89 16v with a 2L Passat one- 150whp sounds too good to miss 
Does anyone know whether fitting a Passat box is a good idea? Obviously the standard 16v short ratio box is the logical choice but as the 2l has a sh*t load more torque and much though i enjoy r a g g i n g the 180016v, am wondering if the different ratios would suit the car. I drive daily around rural Devon in my Git and reckon i have worn out at least 3 gearknobs...A396 Tiverton-Dulverton...what a road! Also 60mph in 2nd gear would be quite nice...
I am going to keep my std gearbox just in case. I think the Passat has a hydraulic clutch though which will need changing.
Am going to start the conversion soon (swapped the current engine in one weekend and rebuilt previous 8v so reasonably familiar with the standard Gti) and will try and document it on photos and post them all later.  The plan:

KR head + cams (recent valve stem seals etc)
6a Block from 1992 Passat GL
New oil pump + windage tray
50mm inlet manifold/Kjet

Otherwise OEM- air filter &  exhaust all totally standard and recent (probably not for long ) Will rolling road the car before changing these bits though as would like to see the difference simply bolting a KR head on 9a block makes over standard output.

Any advice appreciated- does anyone know the original ratios (mph/100rpm...max mph/3rd gear etc) for the Pissart?
Thanks y'all
joe

[Judderi]

I like your style! I have this conversion already and im pretty sure the box is the standard 16v one. If you tell me what to look for i will check for you. The torque is great and the only problem i have with the current box is the lack of top end. For example i raced an ibiza with the 2.0 ABF engine and was beating him easy up until 120mph when he gained on me and crept past. I was gutted! At the mo im running the small intake manifold but plan to swap it for a larger one as soon as i get a spare weekend.

[monzablue16v]

I'd like to tag along on this one as it seems like a good mod and 149bhp just isn't enough on the strip runs out of puff in 3rd at about 5 1/2k but then kicks in and pulls like a train again strange!

[Agreeable Slick]

quick hint, dump the 50mm manifold it actually looses power with that on. As Gary, (GVK) found out at a rolling road day at stealth last year.

I am fitting a ADC 8v box to my 2L valver this weekend, i will let you all know how i get on with it. All things being well of course.

[Devon Joe]

do you need a 50mm manifold as i have a spare? it is in great nick but the plastic injector inserts are all broken (by me obviuosly..doh!)

[Agreeable Slick]

i'm good ta mate, sticking with me 48mm one cheers all the same. 

[Devon Joe]

hmm..maybe i will have 2 spare then...

sorry Large Portion with that luv' ??, reply was to Mk2GTI2.016v!!
thanks for advice tho- will defo try both!

[Judderi]

hmm..maybe i will have 2 spare then...

sorry Large Portion with that luv' ??, reply was to Mk2GTI2.016v!!
thanks for advice tho- will defo try both!

Nah i dont need a spare. Ive got a nice polished set waiting to go on. Im hoping it will give a bit more top end, it may sacrifice a bit of bottom end torque but i will just have to wait and see. Ta anyway