Cooling Issues Advice?
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Cooling Issues Advice?
My situation is different because my car is not stock its procharged LS6.
Any way my temps are not bad on the hwy just stop light to stop light in the city, it can get to 230 degrees. On the hwy about 200 degrees.
I cleaned condensor and radiator from all the stuff that clogs it up, my question is my stock shroud is cut on both sides and just the center plastic is still in place. Would putting some plastic around the front inside the engine bay reflect back into the radiator more? Is the incoming air escaping into the engine bay? Also the top radiator support has been cut and modified for the supercharger to fit. I wonder if air is coming thru that as well? The front plastic shroud seems flimsy and not really secure.
Any advice or thoughts. Thanks in advance.
Any way my temps are not bad on the hwy just stop light to stop light in the city, it can get to 230 degrees. On the hwy about 200 degrees.
I cleaned condensor and radiator from all the stuff that clogs it up, my question is my stock shroud is cut on both sides and just the center plastic is still in place. Would putting some plastic around the front inside the engine bay reflect back into the radiator more? Is the incoming air escaping into the engine bay? Also the top radiator support has been cut and modified for the supercharger to fit. I wonder if air is coming thru that as well? The front plastic shroud seems flimsy and not really secure.
Any advice or thoughts. Thanks in advance.
Last edited by corvet786c; Sep 30, 2016 at 09:56 AM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
What temp are your fans coming on? I would expect that for a SC setup a tuner would have the turn on temp for both low speed and high speed cooling fans reduce below the factory settings.
Are BOTH fans running when they are on. Factory wiring setup is such that the fans are electrically in series with both fans running for low speed operation and are switched to electrically parallel again with both fans running for high speed operation. Many possible causes of only one fan running in either low or high speed operation.
Are BOTH fans running when they are on. Factory wiring setup is such that the fans are electrically in series with both fans running for low speed operation and are switched to electrically parallel again with both fans running for high speed operation. Many possible causes of only one fan running in either low or high speed operation.
I am sure the tune has fans coming on early.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Air leaking at those openings is also leaking at highway speeds and your temps are 30 degrees cooler on the highway. I suspect your issue is that you are NOT moving adequate air with the cooling fans when the car is moving slowly or sitting in traffic/stop light.
Closing the openings the best you can may help a few degrees but it is not going to make a large difference.
Closing the openings the best you can may help a few degrees but it is not going to make a large difference.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
I will review that diagram in more detail, but I removed about 5inches of rubber pipe from the purge valve. Seems the air flow was being blocked somewhat from the fans, don't know how much it will help.
Also I have a transmission cooler right up front where the a/c condensor is, don't know if this is a culprit or not, it looks clean from debree.
10 15 amp fuses look good, but cannot tell how to check the relays.
Its just when I drive lower speeds in stop and go traffic do the temps go up.
Oh wanted to mention that where the incoming air comes up front, there seems to be only like a 6 inch gap. I thought they were larger, don't know if that anything to do with the cut shroud bolts on the bottom.
Also I have a transmission cooler right up front where the a/c condensor is, don't know if this is a culprit or not, it looks clean from debree.
10 15 amp fuses look good, but cannot tell how to check the relays.
Its just when I drive lower speeds in stop and go traffic do the temps go up.
Oh wanted to mention that where the incoming air comes up front, there seems to be only like a 6 inch gap. I thought they were larger, don't know if that anything to do with the cut shroud bolts on the bottom.
Last edited by corvet786c; Sep 30, 2016 at 02:33 PM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
I might be wrong but my guess is that at 208 your low speed fans and not your high speed fans are running. Just because the two fans run in low speed mode does NOT mean that they are both running in high speed mode. A quick review of the wiring diagram above shows that there are additional relays and fuses involved in switching to high speed operation.
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my solution with Maggie...https://www.corvetteforum.com/forums...ssues+resolved
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
my solution with Maggie...https://www.corvetteforum.com/forums...ssues+resolved
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
I will look more into it and get those same supplies.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
my solution with Maggie...https://www.corvetteforum.com/forums...ssues+resolved
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
still can get warm in stop and go traffic but overall waaaaaay better...of course sitting 2 inches off the ground in Florida doesn't help
Team Owner
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From: Here
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I didn't measure but if you look here you can see what I cut out https://www.corvetteforum.com/forums...post1584147188
the filler plate itself was pretty much self explanatory I left the same amount all the way around for stability..I think an inch
now that I have had this system in place awhile I think if I do anything else I will figure out a better pump and larger coolant tank for the maggie...I think that would involve a battery relocate though as the tank would fill that existing battery area
I think that would be a job for Joe at Powertech since I would probably need a tank fabricated.
the filler plate itself was pretty much self explanatory I left the same amount all the way around for stability..I think an inch
now that I have had this system in place awhile I think if I do anything else I will figure out a better pump and larger coolant tank for the maggie...I think that would involve a battery relocate though as the tank would fill that existing battery area
I think that would be a job for Joe at Powertech since I would probably need a tank fabricated.
Last edited by pewter99; Oct 1, 2016 at 05:36 PM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Well I went ahead and did mine yesterday, Its not perfect, but the temps do come down some. My situation was a little bit different. What was happening was my blow off valve filter was blocking the pass side fan, so it was not efficent enough of letting that hot air escape and the temps would take longer to come down. So I shortened the plastic tubing and now the temps come down faster when the A/C is off.
Today it was about 88-89 degrees humid here in fla and with A/C on temps averaging about 205-208. So I am pleased with this mod because it helps. I did not cut the shroud, but this mod will get more air into the intercoolers and go around the shroud.
Today it was about 88-89 degrees humid here in fla and with A/C on temps averaging about 205-208. So I am pleased with this mod because it helps. I did not cut the shroud, but this mod will get more air into the intercoolers and go around the shroud.