what is your ECT and IAT at the end of a pass?
06-10-2007, 07:54 PM
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what is your ECT and IAT at the end of a pass? just curious as i finally remembered to log several things at the track this weekend...
my IAT got up as high as 140 (it was only about 85* outside) i have a 3'' intercooler i think its a 30x14x3 or something....
my ECT got as high as 225 by the end of the run....
all this was on 1/8 mile passes....
Thanks,
Tyler
my IAT got up as high as 140 (it was only about 85* outside) i have a 3'' intercooler i think its a 30x14x3 or something....
my ECT got as high as 225 by the end of the run....
all this was on 1/8 mile passes....
Thanks,
Tyler
06-10-2007, 09:56 PM
#2
Your answers are going to vary with time of year and the type of intercooler. I talked to Andy and his crews this weekend and they said that their IATs are never over 80 degrees but that is with a big A2W IC and a single 106 with the gates basically welded shut.
06-10-2007, 10:00 PM
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i understand that especially with A2W... there was a F2 mustang there at the track with 55* IAT's.... he had rock salt, ice,water and a mixer though....
06-11-2007, 12:01 AM
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Originally Posted by ty_ty13
i understand that especially with A2W... there was a F2 mustang there at the track with 55* IAT's.... he had rock salt, ice,water and a mixer though....
06-11-2007, 07:53 AM
#5
Originally Posted by 69vette
What does rock salt due for the temps? Seems like the large chunks of salt would get clogged in the intercooler core if they are running that in the water.
chemistry
sub freezing water temps
We typically see 34° or so at the start of a pass, and about 55° at the traps (1/4 mile) with the A2W and the 106. A2A was pushing 130° but that was working the turbos pretty hard on the twin setups.
Coolant never really gets much over 200, but they usually sit until it's time for the burnout.
06-12-2007, 11:45 AM
#7
Originally Posted by 69vette
What does rock salt due for the temps? Seems like the large chunks of salt would get clogged in the intercooler core if they are running that in the water.
Phil
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06-12-2007, 01:18 PM
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Originally Posted by Phil99vette
Most people add a filter inside the water cell to keep the rock salt chunks out of the intercooler.
Phil
Phil
06-12-2007, 01:25 PM
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Keep in mind adding extra salt really kills the intercooler, there is already salt in bagged ice and it causes extra corrosion inside the unit. Flush the I/C after racing with a mixture of distilled water and water wetter to keep it in good shape.
06-16-2007, 02:08 PM
#13
do you guys have any good logs of runs with big temp swings? I've been working on temperature modeling to tune the temperature bias table so airmass calculations are more precise and such logs would be of great help. of course FI cars are by far the most affected by it, which is good for me as the relationships between data will (hopefully) be most visible. if you got anything, please email them to marcinpohl at gmail dot com
06-17-2007, 12:45 PM
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Coolant starts at 180 and IATs at about 80.
Coolant ends at 186 and IATs were about 155 (a2w but not a big enough water pump).
Things like that make me wonder how fast we really could have gone if we have kept trucking at it but better things to come soon!
Coolant ends at 186 and IATs were about 155 (a2w but not a big enough water pump).
Things like that make me wonder how fast we really could have gone if we have kept trucking at it but better things to come soon!
06-17-2007, 12:46 PM
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Originally Posted by RedHardSupra
do you guys have any good logs of runs with big temp swings? I've been working on temperature modeling to tune the temperature bias table so airmass calculations are more precise and such logs would be of great help. of course FI cars are by far the most affected by it, which is good for me as the relationships between data will (hopefully) be most visible. if you got anything, please email them to marcinpohl at gmail dot com
06-17-2007, 12:48 PM
#16
Originally Posted by LTLHOMER
Coolant starts at 180 and IATs at about 80.
Coolant ends at 186 and IATs were about 155 (a2w but not a big enough water pump).
Things like that make me wonder how fast we really could have gone if we have kept trucking at it but better things to come soon!
Coolant ends at 186 and IATs were about 155 (a2w but not a big enough water pump).
Things like that make me wonder how fast we really could have gone if we have kept trucking at it but better things to come soon!
06-17-2007, 12:52 PM
#17
I have never had any big coolant temp swings, 2-4 degrees even on 90 degree days on a 1/4 mile pass. IATs go up 40-60* from where it starts on a 1/4 mile pass depending on the blower or pulley I use. On a cool day you are looking at 70-110* with the D1 and on a 90 degree day 110-170* with tha F1A.
06-17-2007, 12:54 PM
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Originally Posted by Phil99vette
Which water pump do you run?
06-17-2007, 04:09 PM
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Originally Posted by kp
I have never had any big coolant temp swings, 2-4 degrees even on 90 degree days on a 1/4 mile pass. IATs go up 40-60* from where it starts on a 1/4 mile pass depending on the blower or pulley I use. On a cool day you are looking at 70-110* with the D1 and on a 90 degree day 110-170* with tha F1A.
