every time i get on it about 5 seconds later the water temp goes all the way up and stays there until i rest my car for about 5-7 min whats the problem, and my fan is working, i have no coolent leaks because i did a pressure test about 4 days ago and nothing was leaking, do i need to reserfice my head or what

 

Check you thermostat. Its probably failing.

 

Its possible the head is lifting. Whats your setup?

Is your coolant reservoir full after this happens?

 

i just put in a new thermostat about a month ago, um the only mod i have is intake and my reservoir is at full when i checked it

 

i have a b18a

 

Yea I mean I can only offer minimal advice as I am not a mechanic or anywhere near it but from personal experience... when I boosted my sohc I had the same issue when my head was lifting. Maybe your hg is blown?

 

yeah i was thinking that to, sucks because it takes so much time to do it

 

yep

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by derek21 &raquo;</TD></TR><TR><TD CLASS="quote">i just put in a new thermostat about a month ago, um the only mod i have is intake and my reservoir is at full when i checked it</TD></TR></TABLE>

New parts can be bad as well. You could also have blockage in your radiator. When the temperature spikes, is your radiator really hot? Does the heater blow really hot? (Turn it on to check.)