alright i got a 96 z28 it runs good and stays normal till the temperature gets to like 210 then the coolant starts to boil anyone have any solutions

 

Sometimes the coolant/water mixture is more water than coolant and it will boil. Also there could be a circulation issue or not enough fluid.

EDIT. Also I have completely removed the thermostat and it helps things stay cool and flowing, of course now it takes a bit longer to warm up.

 

I would check the following

(1) Are you low on coolant?
(2) Are the electric cooling fans coming on?

Low coolant orfans that dont work are the most likley cause of a boil over. One other thing that causes a boil over is blown head gaskets. Lets hope thats not the case.

 

i think that removing the thermostat is not a good idea
i would go get a good one, like GM or Robert Shaw

 

Please dont get me wrong. I did it to my classic, it might mess with the OBDII.Maybe not a good idea for everyone.

 

Most common reasons for boil overs:

Easy fixes:
Low coolant level, common.
Coolant leaking,Find out where it is leaking from
Air in system, needs to be purged out, common especially when coolant was added directly in radiator.
Bad radiator cap or radiator neck, does not hold pressure
Not enough antifreeze in coolant, need 50/50 mix minimum
Sludged up coolant, need to flush out & replace

Harder to fix:
Fans not coming on when needed, or not going to high speed. Check ECT sensor, fan motor, fan relayfuse, fusible link for fan motors, wiring & connectors,& the 3 fan relays
Clogged radiator, best to replace with new one
Bad thermostat, not a common problem, because they usually stick open when they break. Removing the thermostat is not a good idea, as thecoolant will circulate too fast to efficiently transfer heat.
Bad water pump, they usually leak, but the shaft can also break. Keep optispark dry if going to change pump.

Very hard to fix:
Blown head gasket, check coolant for presence of combustion gases.