Why the heck are my temps so hot now?
08-17-2012, 07:04 PM
#1
Why the heck are my temps so hot now? Ever since I got my car back from the build temps have been way higher than it was before I droped it off.
Coolant temps would stay mostly low 200s this time of year and trans temp would stay 180s.
Now, after the build coolant and trans temp will go 230!
Mods that were just recently done...
TEA stage 2 243 62cc - COMP 228/232 112 - TFS pushrods - LS7 lifters - P/P LS6 oil pump - LSXR timing chain - 160 t-stat - Powerbond 25% balancer - FAST 92mm intake - 42lb injectors - NW 92mm TB - SLP smooth bellow - ZO6 85mm MAF - FTP 98mm lid - Motive 3.73
Any ideas?
Coolant temps would stay mostly low 200s this time of year and trans temp would stay 180s.
Now, after the build coolant and trans temp will go 230!
Mods that were just recently done...
TEA stage 2 243 62cc - COMP 228/232 112 - TFS pushrods - LS7 lifters - P/P LS6 oil pump - LSXR timing chain - 160 t-stat - Powerbond 25% balancer - FAST 92mm intake - 42lb injectors - NW 92mm TB - SLP smooth bellow - ZO6 85mm MAF - FTP 98mm lid - Motive 3.73
Any ideas?
08-17-2012, 07:07 PM
#2
Things I have done to try and fix this...
Drained the coolant and did a refill making sure the air is bled out of the system.
I ditched the flex a lite fin and tube trans cooler for a b+m 14400 btu cooler and this cooler actually runs hotter!
Drained the coolant and did a refill making sure the air is bled out of the system.
I ditched the flex a lite fin and tube trans cooler for a b+m 14400 btu cooler and this cooler actually runs hotter!
08-17-2012, 07:53 PM
#4
Im going to try getting this trans cooler off of my hot radiator and move it to dope style. They are probably not helping eachother by touching. Tried dope style with stock stall few years ago and wasnt impressed. Ill try it again. Anything has got to be better than 230 trans temp! 
08-17-2012, 08:34 PM
#7
IDK the exact temp. I asked my tuner and told me 190 or so.
Pretty sure low is on around 190 and high is on around 200.
Before the build I had stock t stat with low on at 203, high on 208 and the efficiency was great. Now with 160 t stat and fans that come on even sooner it sucks. I dont get it.
I have heard of this but to what extent? This change in cooling efficiency is just plain ridiculous!
Pretty sure low is on around 190 and high is on around 200.
Before the build I had stock t stat with low on at 203, high on 208 and the efficiency was great. Now with 160 t stat and fans that come on even sooner it sucks. I dont get it.
I have heard of this but to what extent? This change in cooling efficiency is just plain ridiculous!
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08-17-2012, 08:34 PM
#8
check for anything clogged or blocking airflow. even if you have just check to see if you missed anything. right after my build my temps would get hot with my AC on.
a plastic bag got sucked under my car blocking air to my condenser. my H/C/I setup doesnt get noticeably hotter on brutal days with my AC blasting.
a plastic bag got sucked under my car blocking air to my condenser. my H/C/I setup doesnt get noticeably hotter on brutal days with my AC blasting.
08-17-2012, 08:38 PM
#9
check for anything clogged or blocking airflow. even if you have just check to see if you missed anything. right after my build my temps would get hot with my AC on.
a plastic bag got sucked under my car blocking air to my condenser. my H/C/I setup doesnt get noticeably hotter on brutal days with my AC blasting.
a plastic bag got sucked under my car blocking air to my condenser. my H/C/I setup doesnt get noticeably hotter on brutal days with my AC blasting.
08-17-2012, 08:47 PM
#11
Its a completely different build so that plus running a ram air and it being the middle of summer all take effect. Assuming everything is working as it should you could start by lowering fan speeds to get a jump on the heat.
Also you can run the fans off a switch for hotter days. You can splice into the low and high fan pcm wires and ground them with a switch. Probably cost you about 5 bucks and a hour of your time. Using the fans this way you can also put your trans cooler back where it was and the fans will work for that and the rad. I think that will work better than the dope style.
Also you can run the fans off a switch for hotter days. You can splice into the low and high fan pcm wires and ground them with a switch. Probably cost you about 5 bucks and a hour of your time. Using the fans this way you can also put your trans cooler back where it was and the fans will work for that and the rad. I think that will work better than the dope style.
08-17-2012, 09:04 PM
#12
Leaks where?
Water pump...Idk how old it is but from what I gather our years came with water pumps only excepting a t stat with a fixed housing. My t stat comes right out of the housing so must mean I have a newer style water pump?
When I drained and refiled the system I watched the coolant shooting through the top hose. Looks like it was working fine.
Its a completely different build so that plus running a ram air and it being the middle of summer all take effect. Assuming everything is working as it should you could start by lowering fan speeds to get a jump on the heat.
Also you can run the fans off a switch for hotter days. You can splice into the low and high fan pcm wires and ground them with a switch. Probably cost you about 5 bucks and a hour of your time. Using the fans this way you can also put your trans cooler back where it was and the fans will work for that and the rad. I think that will work better than the dope style.
Also you can run the fans off a switch for hotter days. You can splice into the low and high fan pcm wires and ground them with a switch. Probably cost you about 5 bucks and a hour of your time. Using the fans this way you can also put your trans cooler back where it was and the fans will work for that and the rad. I think that will work better than the dope style.
Once again, I had the ram air and trans cooler on my radiator in the same place before the build and it all worked PERFECT.
I dont even have a/c. The condensor is not even there to be in the way.
The new trans cooler is in the same spot as the old one. We are mis- communicating lol
08-17-2012, 09:43 PM
#15
Leaks where?
Water pump...Idk how old it is but from what I gather our years came with water pumps only excepting a t stat with a fixed housing. My t stat comes right out of the housing so must mean I have a newer style water pump?
When I drained and refiled the system I watched the coolant shooting through the top hose. Looks like it was working fine.
Once again, I had the ram air and trans cooler on my radiator in the same place before the build and it all worked PERFECT.
I dont even have a/c. The condensor is not even there to be in the way.
The new trans cooler is in the same spot as the old one. We are mis- communicating lol
Water pump...Idk how old it is but from what I gather our years came with water pumps only excepting a t stat with a fixed housing. My t stat comes right out of the housing so must mean I have a newer style water pump?
When I drained and refiled the system I watched the coolant shooting through the top hose. Looks like it was working fine.
Once again, I had the ram air and trans cooler on my radiator in the same place before the build and it all worked PERFECT.
I dont even have a/c. The condensor is not even there to be in the way.
The new trans cooler is in the same spot as the old one. We are mis- communicating lol
08-17-2012, 10:02 PM
#16
Yea, the car runs the same when colder.
There is no mis-communication. You have a totally different engine combination now, you cant expect it to run exactly the same just because your have the same airflow to the rad. I think your at the point that you need to find other ways to get the heat out, not assume something is wrong. I was offering advice to ways to do that. Good luck.
Who said I expect it to run exactly the same?! The coolant temp is 30 degrees hotter with a 160 t stat and fans that come on sooner. Trans temp is 40 degrees hotter. Im not expecting it to run exactly the same as before but come on man these are big changes.
08-18-2012, 12:40 PM
#18
My tuner said he set the fans like he did so my high spd fans were not running all the time. But they already do that as it is. I would really hate to have them running even more. IDK what good it will do seeing how it dosent seem like the fans were even lowering any temps yesterday. Shoot.
08-19-2012, 09:36 PM
#19
The b+m cooler location was the problem for both trans temps AND coolant temps. Thanks for the help 
https://ls1tech.com/forums/16638741-post14.html
https://ls1tech.com/forums/16638741-post14.html
08-23-2012, 01:10 AM
#20
Don;'t know how many years I've been telling people...you cannot lay a tranny cooler against the radiator. It makes that entire surface area more than useless...it makes it a HOT SPOT.
Do it like I did mine 10 years ago......
I now have one on each side.....dual coolers for the tranny. Running in Parallel. Coolant temps never changed one degree bu using two of these......as long as they are NOT touching the radiator, or too close to it.
.
Do it like I did mine 10 years ago......
I now have one on each side.....dual coolers for the tranny. Running in Parallel. Coolant temps never changed one degree bu using two of these......as long as they are NOT touching the radiator, or too close to it.
.