EZ L98 Question
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,249
Likes: 3
From: Grovetown Georgia
EZ L98 Question
Can I change the thermostat without draining the coolant from the engine? I want to change the chip to the performance chip I have and the instructions say I must change to the 160 thermostat. I've changed the chip and started it up and it idles smoothly.
Will it cause any problems running the Vette without changing the theromostat?
Thanks
Joe
Will it cause any problems running the Vette without changing the theromostat?
Thanks
Joe
Drifting
Joined: Jun 1999
Posts: 1,874
Likes: 1
From: Garden Grove CA
Re: EZ L98 Question (90EXPVette)
Just leave the 198 degree thermostat in place. Unless you are drag racing with cool down periods in between runs you will not see any appreciable performance gains in regular street driving with the 160 degree thermostat.
Thomas
Thomas
Drifting
Joined: Dec 2000
Posts: 1,785
Likes: 91
From: Leander TX
Re: EZ L98 Question (90EXPVette)
It wont cause problems it just wont cool the engine as well as it is supose to. They say put in a 160 stat because the fans now come on at 180 degress unlike before when they come on a t 200 something. All you need to do is drain a little collant from your radiator, enough that the level in the rad. is below the level of the hose on the drivers side. Undo the clamp at the thermostat housing and then proceed to change the stat. The fluid will be under a little bit of presure so don't be surprised if you here a soda pop can opening sound from the stat and if a little collant comes out the rad hose(asuming it wasn't lowered enough. This would be a really good time to change the fluid anyways, as summer is here, and you could also clean out the vacume bag (between the rad. and AC condensor) so you car will run cooler to.
Le Mans Master
Joined: Jan 2002
Posts: 5,320
Likes: 4
From: Kyle TX (Because Mojo Made me fill it in)
Re: EZ L98 Question (85WHITEZ51)
All I did was drain out about 1 gallon of coolant. But if you havent serviced your cooling system in some time, this is the perfect time to drain it all out, replace stat, clean and refill. It does help to have a chip programmemed to have the fans come on sooner, or at least a switch to turn the fan(s) on sooner.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: EZ L98 Question (90EXPVette)
It won't do any harm to run without the stat change but you won't get the most gain from the chip.
You only need to drain about 1/2 gal of coolant or less to be able to access the stat.
You only need to drain about 1/2 gal of coolant or less to be able to access the stat.
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,249
Likes: 3
From: Grovetown Georgia
Re: EZ L98 Question (90EXPVette)
I Love this place! Thanks guys for the responses , I planned on changing the coolant and oil in the Vette and Jeep next weekend, now I know I can wait.
:cheers:
Joe
:cheers:
Joe
