R56 Hood Scoop Melt Down Resolution Question
#101
#102
M7 Ram2 Scoop And Air Intake Temp
Just put the M7 scoop on last night as the final step to kill the scoop droop Troll. Took Beelzebub out today to see if there was any effect on air intake temps in stop & go driving. BIG TIME EFFECT!! Before, my ScanGauge would show a 20-40 degree increase over ambient temps. Now, it consistently shows an increase of only 10-12 degrees. With the scoop and Alta's High Performance foam air filter, I think I may have stumbled across a true COAI (Cold "Outside" Air Intake). Don't plan to paint the scoop as it looks nasty on DS/B. I BE HAPPY CAMPER!!!
Dwight
PS: As soon as I pulled the OEM scoop, I knew why the 1st one melted. Over engineered and made of POS plastic.
Dwight
PS: As soon as I pulled the OEM scoop, I knew why the 1st one melted. Over engineered and made of POS plastic.
Last edited by Dwight Walhood; 07-31-2010 at 06:29 PM.
#103
My hood scoops starting to sagg too
When I showed the service guy at my local dealership he said that they could replace mine with another one, but he wouldn't let me get the one in chrome and let me pay the difference...
I told him I'd wait and decide when I come back for my free oil change.
Anyone else have this experience or does this sound like bs and my dealer's just trying to rip me?
I gave this a try and "unclipped" the little center pin last night. I just checked it tonight and I think the heat sank the clip back in because it was re-clipped again! I unclipped it again, but I'm not sure how effective this'll be... maybe my scoop is too far gone for this to work
When I showed the service guy at my local dealership he said that they could replace mine with another one, but he wouldn't let me get the one in chrome and let me pay the difference...
I told him I'd wait and decide when I come back for my free oil change.
Anyone else have this experience or does this sound like bs and my dealer's just trying to rip me?
A while back my scoop started showing the start of the "melt". I went to remove it so that I could open the other holes in the grill. In the process of releasing the center mount I discovered it was pulling down quite hard on the center of the scoop. (where the dip was starting). To me it seems that the scoops are not melting from heat but are rather being pulled down by the center mounting clip when hot causing the dip. I pushed my center clip up to release the clip so that the scoop is no longer being pulled down by it. My dip went away and so far no more "Melting" my scoop looks as good as new.
#104
...I gave this a try and "unclipped" the little center pin last night. I just checked it tonight and I think the heat sank the clip back in because it was re-clipped again! I unclipped it again, but I'm not sure how effective this'll be... maybe my scoop is too far gone for this to work
BTW, my dealership offered me an unpainted CF scoop at no cost. If I want it painted it will run me an extra $41. Not a bad deal but I'm going to wait a little longer to see if there is an official fix for this or wait for my scoop to get really warped before I have them replace it. Good luck all.
#105
I have had the same experience. I'm going to check it periodically and give that plastic pin a push whenever it's needed to keep it from pulling the scoop down. So far my scoop has almost gone back to it's original flatness.
#106
Guys, just thought I'd "remention" this solution. Some of you will remember I had the sagging scoop on my '08MCS. It started just shy of 3K miles.
I had heated the scoop up under pressure and formed it somewhat straight.
At that point, I opened up all the little holes with a dremel tool so the mesh scoop was actually an open mesh scoop.
Though the scoop was back to where I "formed it back to", it never got worse. (I later traded the scoop under warranty for 100 to get the carbon fiber scoop. (even it sunk a bit))
Point is, when I bought my '09 JCW, I immediately did the same scoop opening thing and at 9K miles, there is no deforming going on.
So unless the manufacturer changed materials (highly unlikely) it seems that maybe the scoop just needs more air passing through it.
I did put a thin strip of insulation under the hood to help, (not sure if it did or not)
The only other measure is when I'm doing a track day, I always open the hood afterwards just to let it cool down.
You may want to try the opening of the scoop trick.
I had heated the scoop up under pressure and formed it somewhat straight.
At that point, I opened up all the little holes with a dremel tool so the mesh scoop was actually an open mesh scoop.
Though the scoop was back to where I "formed it back to", it never got worse. (I later traded the scoop under warranty for 100 to get the carbon fiber scoop. (even it sunk a bit))
Point is, when I bought my '09 JCW, I immediately did the same scoop opening thing and at 9K miles, there is no deforming going on.
So unless the manufacturer changed materials (highly unlikely) it seems that maybe the scoop just needs more air passing through it.
I did put a thin strip of insulation under the hood to help, (not sure if it did or not)
The only other measure is when I'm doing a track day, I always open the hood afterwards just to let it cool down.
You may want to try the opening of the scoop trick.
#107
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#108
Picking up an '09 (June build) this week. Guess this is something I'll have to keep an eye on.
I'm inclined to just remove the entire mesh grille from the scoop and run it that way. Anecdotal evidence from some of the posts I've read seems to suggest that this might be one possible way to go...
I'm inclined to just remove the entire mesh grille from the scoop and run it that way. Anecdotal evidence from some of the posts I've read seems to suggest that this might be one possible way to go...
#109
#110
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if yours is like the one they just swapped out on mine I would not remove anymore, you'll loose allot of structural support IMO
#111
To follow up on the engine compartment air pressure thing: I think what happens is the scoop guides the air pressure that's generated by the car's forward motion into the engine compartment behind the radiator. This is the same pressure that's guided onto the radiator's front by the grill. Since air flows from high pressure to low, any lessening of the pressure difference between the front of the radiator and behind it will result in less air flowing through the radiator and less cooling.
It may never go to zero airflow because of the difference in surface areas between the front grill and scoop, but I'd expect that opening the grate may make a significant difference. No way to know for sure without testing.
It may never go to zero airflow because of the difference in surface areas between the front grill and scoop, but I'd expect that opening the grate may make a significant difference. No way to know for sure without testing.
#112
You may want to try the opening of the scoop trick.
I used a dremel as you suggested and opened up just the middle portion of my grill. Mine already has half the holes open... I'm not sure how much this will help but time will tell
If this doesn't work out, I may just have to buy a chrome one and open up all the holes before installing it... This all seems like a lot of trouble over something that has little to no performance value.
#113
What you really need is a stamped aluminum scoop. That would conduct heat nicely, and you could have it anodized any color you want.
For $50,000 I'll hand hammer a sterling sliver one for you. That would conduct heat even better than aluminum.
#114
After sawing my middle pin off, I used a hair dryer to heat the top of my scoop and sorta formed it back by hand. I also use this for sunglasses sometimes
I used a dremel as you suggested and opened up just the middle portion of my grill. Mine already has half the holes open... I'm not sure how much this will help but time will tell
If this doesn't work out, I may just have to buy a chrome one and open up all the holes before installing it... This all seems like a lot of trouble over something that has little to no performance value.
I used a dremel as you suggested and opened up just the middle portion of my grill. Mine already has half the holes open... I'm not sure how much this will help but time will tell
If this doesn't work out, I may just have to buy a chrome one and open up all the holes before installing it... This all seems like a lot of trouble over something that has little to no performance value.
The chrome scoop is plastic too and subject to the same problem.
#115
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To follow up on the engine compartment air pressure thing: I think what happens is the scoop guides the air pressure that's generated by the car's forward motion into the engine compartment behind the radiator. This is the same pressure that's guided onto the radiator's front by the grill. Since air flows from high pressure to low, any lessening of the pressure difference between the front of the radiator and behind it will result in less air flowing through the radiator and less cooling.
It may never go to zero airflow because of the difference in surface areas between the front grill and scoop, but I'd expect that opening the grate may make a significant difference. No way to know for sure without testing.
It may never go to zero airflow because of the difference in surface areas between the front grill and scoop, but I'd expect that opening the grate may make a significant difference. No way to know for sure without testing.
Would be interesting to test your high to low pressure radiator theory
#116
Guys, just thought I'd "remention" this solution. Some of you will remember I had the sagging scoop on my '08MCS. It started just shy of 3K miles.
I had heated the scoop up under pressure and formed it somewhat straight.
At that point, I opened up all the little holes with a dremel tool so the mesh scoop was actually an open mesh scoop.
Though the scoop was back to where I "formed it back to", it never got worse. (I later traded the scoop under warranty for 100 to get the carbon fiber scoop. (even it sunk a bit))
Point is, when I bought my '09 JCW, I immediately did the same scoop opening thing and at 9K miles, there is no deforming going on.
So unless the manufacturer changed materials (highly unlikely) it seems that maybe the scoop just needs more air passing through it.
I did put a thin strip of insulation under the hood to help, (not sure if it did or not)
The only other measure is when I'm doing a track day, I always open the hood afterwards just to let it cool down.
You may want to try the opening of the scoop trick.
I had heated the scoop up under pressure and formed it somewhat straight.
At that point, I opened up all the little holes with a dremel tool so the mesh scoop was actually an open mesh scoop.
Though the scoop was back to where I "formed it back to", it never got worse. (I later traded the scoop under warranty for 100 to get the carbon fiber scoop. (even it sunk a bit))
Point is, when I bought my '09 JCW, I immediately did the same scoop opening thing and at 9K miles, there is no deforming going on.
So unless the manufacturer changed materials (highly unlikely) it seems that maybe the scoop just needs more air passing through it.
I did put a thin strip of insulation under the hood to help, (not sure if it did or not)
The only other measure is when I'm doing a track day, I always open the hood afterwards just to let it cool down.
You may want to try the opening of the scoop trick.
#117
Isn't the chrome scoop just chromed plastic? Why wouldn't it melt just as eaisliy?
What you really need is a stamped aluminum scoop. That would conduct heat nicely, and you could have it anodized any color you want.
What you really need is a stamped aluminum scoop. That would conduct heat nicely, and you could have it anodized any color you want.
This stamped aluminum idea sounds awesome, and ANODIZED!! I don't think I've seen anodized aluminum on any car. I would love this, sounds unreasonably pricey though.
#120
JCW CF Scoops Melting, Too?
I've seen posts in other forums stating that the JCW CF scoops are sagging, too. Apparently it just takes longer. That and the cost is why I went with M7's fiberglass scoop. No problem so far, but I only have 1K miles since install. Certainly been hot enough to test lately. 100+ the last 4 days!
#121
Having said that, it was more noticeable because I painted my carbon fiber to match my car, I think the carbon fiber doesn't show as much if left alone.
I've got 9K miles on my JCW now and no warpage at all. No doubt in my mind that opening the scoop helped.
Mark
#125
Not sure if it's negotiable but Charleston Mini charged me 100 to upgrade from the original scoop to the carbon fiber.