Water Temp, How hot is too Hot???
Thread Starter
Teching In
Joined: Aug 2010
Posts: 29
Likes: 0
Water Temp, How hot is too Hot??? Hi, I am just finishing putting in an LS1 into my once was 944 turbo. This is strictly a dedicated track car. In my past experience with the 4 cyc. turbo I never had problems with the car over heating. I don't suspect to have any with this motor, I feel I have the proper set up with a Griffin Rad. and the like. But what water temps are ok for the motor to run it hard at a consistent level? In my own mind I would feel anything up to 220 deg. would be ok, and getting over that mark would be too hot and maybe short shifting would be involved... so I wanted to have some feedback from the group on what level or range would be best, ok, and too hot. Your feedback is appreciated. Thanks.
I would become concerned when it started to get in the 220's, 230's i would look for a way to cool it down like you talked about and 240 I would probably idle back around to the pits. JMO
On a side note I have heard running an effective oil cooler would help with this as well.
On a side note I have heard running an effective oil cooler would help with this as well.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
In a stock f-body, the low speed cooling fan comes on in the 220s, the high speed comes on in the 230s. These engines run 230+ in 90+ degree weather with the AC on, stock. Concerned with mid 230s? Absolutely not. Mid 230s the best for power production? Probably not. For racing in warmer climates an oil cooler probably would be a good investment though.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
With a proper low temp thermostat and adjusted fan settings I have seen about a 20-25 degree reduction in temp with no other modifications to the cooling system.
Fans typically don't run at vehicle speeds over about 35 mph, so on a race track they could actually become a restriction. A manual fan switch would only help the pit area, but an adjusted tune would serve the same purpose.
Fans typically don't run at vehicle speeds over about 35 mph, so on a race track they could actually become a restriction. A manual fan switch would only help the pit area, but an adjusted tune would serve the same purpose.
