Just Installed New To4z

[tricstar]

Just finished the install of the new TO4Z on my R33 GTR, so a couple of questions :

first off, the turbo that came of was a Turbonetics GTK850, which was oil only, so I had to drop the coolant and tap in some water lines, do I need to purge the cooling system for any air pockets? & if so, how?

secondly, is it ok to drive before I get a new tune done, the GTK850 was a monster compared to the TO4, or is it only ok to drive like nana to the dyno for the tune?

so what do the wise heads on here say

[paulr33]

just baby it around in case you damage something

and how to bleed it will be in the tutorial / how to section

[JonnoHR31]

parked car on a hill or jack it up so the front is higher. cut a coke bottle in half and shove it in the top of the radiator. fill it up with coolant with the motor running and keep topping up til the level stops dropping.

keep it off boost until tuned

[tricstar]

thanks guys . as I suspected

[KiwiRS4T]

do I need to purge the cooling system for any air pockets? & if so, how?

There's a bleeder just above and to the left of the fuel rail more or less in line with the end of the plenum. It's a hexagonal bolt with a little tag under it. I think there's another at the back of the motor but haven't got my car here ATM so I can't check.

[tricstar]

There's a bleeder just above and to the left of the fuel rail more or less in line with the end of the plenum. It's a hexagonal bolt with a little tag under it. I think there's another at the back of the motor but haven't got my car here ATM so I can't check.

Its got a hypertune plenum, so no bleed, don't think.. so I'm going with Jonno"s idea, jack the front etc

cheers