Has anyone done the water bypass to the standard turbos ?. Whats your thoughts on this as i am thinking of doing it.

Also has anyone got rid of the PCV valves and put a oil catch tank/breather system in their place, do yo think the car will breath correctly ?

Thanks

Has anyone done the water bypass to the standard turbos ?. Whats your thoughts on this as i am thinking of doing it.

Also has anyone got rid of the PCV valves and put a oil catch tank/breather system in their place, do yo think the car will breath correctly ?

Thanks

 

i looked into doing the catchcan idea, lymon had all the pipework diagrams of what you need. Kirbz actually did it recently - afaik he had problems due to buying the wrong catchcan and it blew his dipstick out? think you need one with a breather filter on top.

 

im sure mike or eric will be along soon with better info!

I thought someone would have done the turbo water bypass??????

Make sure you get a catch can with good size outlets .Lots of the cheap ebay ones have too smaller outputs and pipe, they cause a restriction in the breather system .Go for a greddy /hks/arc.As with water feeds Silvia enginering always didnt bother with connecting them on the ca18det 200 sx engine .Not sure on the vg engine .

As above on 200 engines, heard of lots of guys bypassing water supply mostly with no ill effects. Never really heard it mentioned here, and lots of aftermarket tubs just have oil feeds. Only problem i would think is that stock tubs were designed to have the water passing through them, just removing it might cause more problems than it would solve.

 

Catch tank of the PCV's is an interesting idea though, presumably your hoping to save the valves (hence not replace them so often?)

Hi taff, i thought that all the catch tanks had a breather type lid, because it must breath to atmosphere. As with the tubs, thats wot peter done to the T3.5 on my Silvia, and i had no over heating probs, so i thought i could do the same with the Z ? but i am not to sure about the oil supply to the tubs, if its up to the job.

I would work along the lines "if it aint broke...." (clearly if your having water pipe issues then its different, but if all is well....)

As far as i know oil supply is for lubricating the trust bearing only .Water feeds run around the turbo housing but it doesnt do a lot of cooling because the water is boiling due to the temps the turbos operate at.The catch tank will breath to atmosphere on one side [maybe via a filter]but it has to have good size inputs and outputs on the oil catch can end to avoid backpressure build up.

I would work along the lines "if it aint broke...." (clearly if your having water pipe issues then its different, but if all is well....)

 

You dont know me then ? anyone can do that ?.

Bump

 

I am getting to the point of the engine rebuild were i need to know about the turbo water bypass, someone ?

 

Kirbz / lymon, how did you get on with the oil catch/tank system ???