vs supercharger overheating problems?

[mz-v6-2c]

was wondering if i could get some help on another issue that has happened in the last day or so, ive noticed that when the car is in park and idling the temp sits around quator and dosnt move a inch, but as soon as i start to drive the temp rises to just under half then creeps back down when sitting at traffic light....
now 2 weeks ago i had to get a reley put on the thermo fan since getting it back from getting my heads shaved on it, only cause the car seemd to jump to 3 quators instantly and untill i got the problem fixed and to prevent doing damage to my heads i put the reley in to keep engine cool.. i only put the relay in for a short term option and not all intended to keep it in any longer once sorted...
now since the relays been in, the car has driven always on quator, has not moved higher or lower, has always just sat there... now since Saturday (a couple days ago) ive noticed that now i can leave it idle in my drive way for 10mins and it will not rise what so ever, but once i start to drive the temp is coming up, i am not 100% sure as to how high it would go if i keep driving while its rising, but due to traffic lights and sitting in idle at lights it brings it straight back down? i no i shouldnt be concerned cause it hasnt reached a "high temp" but this isnt normal, as i said it only runs on quator with that thermo fan constantly on...
it has a new radiator, new hoses, new water pump, new thermo,?

[wogstyler]

if the temp doesnt get over half all will be ok. Do you have a thermostat in it?

[mz-v6-2c]

yeah it has a thermostad in it, but yeah it does seem ok, but it just seems odd now the temp is rising, when it didnt for almost 2 weeks when driving the same distance etc?
i am noticing tho when temp does go up the car starts to shake? odd i know but doesnt seem to do so while running on quator? not to sure hey? might need to get it checked out i guess ha which means more cash lol

[mz-v6-2c]

having said if it dosnt go over half, u said, the car dosnt seem to be able to rise that high cause i am coping traffic lights and it comes straight back down again, but this smorning i did take it on a futher run and it only got a slight tad bit over half, but came straight back down cause i started getting woried and yeah let the car idle in park, which brought temp straight bak down to quator...

[wogstyler]

sounds like thermostat to me. but i no mechanic lol. how the coolant level?

[Decicrate]

Did you bleed the system correctly?

[vsl67]

As Decicrate said 3 bleed points

[blueV8vl]

yeah air in the system is a killa

[mz-v6-2c]

ok dont want to get to far into it but to cut the story short i have been scammed one to many times with the car and mechanical wise... the gronk that did my heads (well he took em off and put them back on, but took them to race teck to get shaved) seems he has done a few major problems since i got the car back,
one it was overheating to 3 quators, and he made me believe that he did everything correctly when in fact he didnt cause the car didnt over heat like that when my heads were gone!, he didnt tighten the oil filtter right which cause the car to leak a crap load of oil ahh and he didnt do the manifold bolts tight... i had to get 4 out of 6 bolts tighten properly cause all bolts were hanging by a thread.... so since i got this "new reley put in so my fan runs at all times and haven seen the temp sitting at quator the whole time... now since i had to take my car back to this guy a couple of days ago so he could fix my major oil leak, since then now that i think of it, my temp has started to rise again... being frustrated i called him and demanded to know what he done to my car and what the story was after a few thousands of dollars!.. he tells me that my system was really hARD TO BLEED, which tells me the idot truly dosnt know how to do it! cause after comming on this site and learning the ins and outts of my car and with all you guys help i have found that when i take my radiator cap of when car is cold as the radiator is showing alot of bubbles! also he tells me that he drilled a hole in my thermostad? i dont understand this? i dont know why he would do such a thing! my car is getting dropped off at a holden dealership not this tues the followning tues, but in takeing all ya advice you guys have really lead me to the correct problem, i truly didnt bring it down to the thermostad or air in the system cause i trusted this guy as he replaced all my parts in this car to brand new and charged me alot of cash! seems he has ripped me off hard core and i will be demanding a refund on all the screw ups he has done when holden repair it...
so this over heating problem with the thermo stad and air in the system, would of been the problem since a couple weeks ago when i got it back from him, he had never done it right!
guess this is a lesson learnd hey ahhh

[Decicrate]

The drilling of a hole in the thermostat is pretty common, it's not a big hole and it is in the plate area of the thermostat(if that makes sense). The reason for this is to help the air pass through the hole before the engine gets up to temperature.
I have found in the past that after pulling heads off and so forth that it can dislodge scale and other crap in the coolant system. This can end up in the radiator, which will block some of the water passages causing the car to over heat.
There should be no reason that the thermo fan needs to be on all the time, if your mechanic has done this, he is a tool.
Do you know how much was taken off the heads?
Did he machine the LIM(lower intake manifold) to suit the amount taken off the heads?

If you do need a new radiator you can use a VS V8 brass copper heavy duty radiator. They are a little more expensive, but they do a great job.
It isn't hard to adapt the thermo fan shroud to the V8 radiator, it took me about 20 minutes to do so and to look at it, you don't really notice much of a difference.
The V8 radiator will keep the L67 temperatures well under control.