16v manifold

[cymru-corrado 0]

i've got a 1.8 16v 1990 model.which size manifold would if have come with 42mm or 50mm.am i right that the 50mm was on the 2 litre?

 

also what difference would it make if ig to put a 50mm on if mine is a 42mm?

[flusted 0]

42mm came standard on all corrados,50mm on golf 16vs.

IMO avoid the 50mm as it makes your car sluggish till 5k.

Ive tried every option and my car feels the most livliest with the very early golf 16v 41mm manifold with longer runners!

 

VW used the smaller diameter inlets to boost torque as the corrado is heavier than the golf

[Bobby 0]

def agree with that flusted

[mistrall 0]

morning - i beleve the 2,ltr did come with the 50mm as it is what i have on mine - - does it realy make that much diference in touqe? when mine went on the roaling road she came out with 157lb..of torque?

[cymru-corrado 0]

157lb just from manifold change.arent 2L's book figure around 130lb/ft?

[flusted 0]

morning - i beleve the 2,ltr did come with the 50mm as it is what i have on mine - - does it realy make that much diference in touqe? when mine went on the roaling road she came out with 157lb..of torque?

 

AFAIK they never come with 50mm so someone has fitted it before you

[Rob Heath 0]

I got told that my 89 valver has got a 40mm inlet on it, its the one with a cast design on one of the flutes

 

I personally thought that they only made the 42mm and 50mm??

[ben16v 0]

Rob Heath, early c`s did come with 40mm, my g/f old one had the same with the castings, might try it out for an experiment

[flusted 0]

The one with the casting is still 42mm but has longer runners than the later 42mm 1s,this is the 1 im using.

[davidwort 0]

i've got a 1.8 16v 1990 model.which size manifold would if have come with 42mm or 50mm.am i right that the 50mm was on the 2 litre?

 

also what difference would it make if ig to put a 50mm on if mine is a 42mm?

 

use the 42mm and get the lower half polished and port matched to the head 8)

 

that works great on the 2.0 also, will give plenty of flow on all but the wildest head and cams without low end suffering.

 

David.

 

I'll prove this again on friday, Stealth tune up :D