corvette1

There are many performance packages that recommend using a 160 deg F stat in place of the stock 192 deg F. I understand running a cooler stat will help prevent pre-ignition especially if you are using a more aggressive timing scheme, but does it benefit an engine that has not had the comp ratio bumped up or timing advanced? If it is a benefit why wouldn't it come from the factory with the lower temp stat? Will a lower temp stat hurt any components(the cats)? Also what is better going with a 180 deg F stat or a 160 deg stat?

SladeX

I thought are cars already come with the 180 F stat... says so in my manual lol yes I read the damn thing.

glennhl

Stock thermostat is 86 celsius which is 187 F. I had to go to the 160 to stop my 01 from pinging!

'Trust'

iTrader: (24)

You could always shim the stock one

jrnorman

For "Trust"

How do you shim an LS-1 thermostat to lower the set temperature?

1LoudTA

iTrader: (11)

oh just buy the real one for 30 bucks dont shim it

jrnorman

See my post that my LS1 water pump wont take a replacement - aftermarket or GM. It wont fit in the hole!!!!!!

Redneck Z

iTrader: (3)

Just get your fans tuned. There's no need for a 160! I yanked my 160 out and now keep the temp where I want it by adjusting the fans. I'm much happier without the 160 in there!

jrnorman

I was not going to go that far down, just to 180 or 185 and I have lowered my fans to the point where they will stay on once you get moving and get good air flow without fans.

I would like to raise my spark advance, particularly at 4000 rpms and above without the Knock Retard kicking in.