Hi Guys,
We got an interesting problem here. Every time after a long period of driving (high way, 200km/h+) a good level of coolant is gone. Seems that it is pushed out from the open side of the header tank (Forge), after the header tank is completely full. This line is to the open. We're thinking that because of the high pressure and possible hot spots in the cilinderhead, coolant/water gets vaporized, causes high pressure and is trown out of the cooling system. We also had on 2bar (for longer periods of boosting) on the engine dyno water temp problems, probably because of this.
Theory is to get a swirl tank with high pressure rad cap, locating this higher than the cilinderhead; swirl tank will have a bleedvalve, to get the steam and air out of the system. Possibly this swirl tank needs 2 or 3 lines from the possible hot spots from the cilinderhead, to bleed these hot spots.
I'm looking to the high powered Syklines and they all seem to use such a system; since getting serious cilinderhead problems if not using (cracking heads etc). ARC even has a complete kit for them. High powered Cosworths seem to use these kinds of systems too.
Does anyone know a GTi-R with such a system, or with only a coolant swirl pot and any pics offcourse?
rgds
habib
Any feedback to this subject is ofcourse welcome 8)
We got an interesting problem here. Every time after a long period of driving (high way, 200km/h+) a good level of coolant is gone. Seems that it is pushed out from the open side of the header tank (Forge), after the header tank is completely full. This line is to the open. We're thinking that because of the high pressure and possible hot spots in the cilinderhead, coolant/water gets vaporized, causes high pressure and is trown out of the cooling system. We also had on 2bar (for longer periods of boosting) on the engine dyno water temp problems, probably because of this.
Theory is to get a swirl tank with high pressure rad cap, locating this higher than the cilinderhead; swirl tank will have a bleedvalve, to get the steam and air out of the system. Possibly this swirl tank needs 2 or 3 lines from the possible hot spots from the cilinderhead, to bleed these hot spots.
I'm looking to the high powered Syklines and they all seem to use such a system; since getting serious cilinderhead problems if not using (cracking heads etc). ARC even has a complete kit for them. High powered Cosworths seem to use these kinds of systems too.
Does anyone know a GTi-R with such a system, or with only a coolant swirl pot and any pics offcourse?
rgds
habib
Any feedback to this subject is ofcourse welcome 8)