LSX427 Cooling issue's????
08-17-2009, 07:09 PM
#1
LSX427 Cooling issue's???? We drove the car appx 60 miles yesterday getting the tuning squared away.
Everything is fine except the water temp seemed to stay around the 210-215deg. while cruising and would creep up another 5 deg. at a stop light. I believe there is a 160thermastat in the motor. The hood was off the car as well. Any idea's what to do to get the motor to run cooler?
Everything is fine except the water temp seemed to stay around the 210-215deg. while cruising and would creep up another 5 deg. at a stop light. I believe there is a 160thermastat in the motor. The hood was off the car as well. Any idea's what to do to get the motor to run cooler?
08-17-2009, 07:30 PM
#2
Well are the head gaskets the correct ones for the LS7's you are running I know a few people who had some over heating issues with using the wrong gaskest. Just a thought. Other than that I would only think it would have to do with Turbo placement and cooling system setup GL! Its a bad *** car you built.
Jeff
Jeff
08-17-2009, 08:10 PM
#5
Well are the head gaskets the correct ones for the LS7's you are running I know a few people who had some over heating issues with using the wrong gaskest. Just a thought. Other than that I would only think it would have to do with Turbo placement and cooling system setup GL! Its a bad *** car you built.
Jeff
Jeff
08-17-2009, 09:57 PM
#9
Sounds good I just remebered Josh comenting and had posted that they were LS7 but he may have just been talking about the exahust flange during the build up thread maybe I am mistaken etc... But it was just a thought from a recent conversation with an engine builder etc...GL!
08-17-2009, 11:25 PM
#10
Launching!
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i had overheating issues ,once the temp hot high it kept on going up not down.I ended changing the water pump to the evans and built a custom radiator. this made my temps more stable , general driving the gauge barely goes over a quarter.
08-18-2009, 12:41 AM
#13
Not really, the electric pump's flow less then stock. If you were to take a bunch of short trips it may help a ton to have the fan and pump on for a couple mins after the car turns off but over a long trip they are about the same or slightly less effective then a stocker.
08-19-2009, 05:59 AM
#15
Launching!
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Not really, the electric pump's flow less then stock. If you were to take a bunch of short trips it may help a ton to have the fan and pump on for a couple mins after the car turns off but over a long trip they are about the same or slightly less effective then a stocker.
08-19-2009, 07:53 AM
#17
FWIW, 438" LSx filled block, ~2000hp, we can go to the track, in the staging lanes 165 MAX, down track does not see over 175, once we hit the return lane and drive back to the pits the temp does not get over 168. We're running a double pass drag style radiator and a 55gpm pump with a 160 stat thats been modified to open around 155.
08-19-2009, 08:47 AM
#18
Phil thanks for the info. I wonder how much heat you are losing due to the turbo being in the back as his turbo is right next to the intercooler. Also, daily driving is much worse than the staging lanes....everything in the engine compartment gets heatsoaked and thats when the temps start rising.
08-19-2009, 09:21 AM
#19
Phil thanks for the info. I wonder how much heat you are losing due to the turbo being in the back as his turbo is right next to the intercooler. Also, daily driving is much worse than the staging lanes....everything in the engine compartment gets heatsoaked and thats when the temps start rising.
08-19-2009, 09:39 AM
#20
I would think you will need a big cooling system. Like ron davis rad, better water pump. maybe additional pusher fans,etc.
I am thinking to try out that high flow pump that is shown or simlar one have seen, Torn between ron davis or be cool rad and don't think have any room for additonal fans.I have seen one overheat on my setup,didn't boil over but temps did hit around 250. Normally they are around 200 even with 160 stat, fans coming on at like 160 both of them and redline water wetter with 50/50. The day I overheated I was also messing around with afr and timing and did have the air on.
Not sure you have air still on your build.And of course your build is hardcore compared to mine. Wonder if should add an oil cooler to mine as well.
I am thinking to try out that high flow pump that is shown or simlar one have seen, Torn between ron davis or be cool rad and don't think have any room for additonal fans.I have seen one overheat on my setup,didn't boil over but temps did hit around 250. Normally they are around 200 even with 160 stat, fans coming on at like 160 both of them and redline water wetter with 50/50. The day I overheated I was also messing around with afr and timing and did have the air on.
Not sure you have air still on your build.And of course your build is hardcore compared to mine. Wonder if should add an oil cooler to mine as well.