Excessive heat solutions
Discussion
I have had some further suggestions made about fettling Pearl a little more, to the tune of an additional 50 BHP . Whilst she will then boast approximately 520 Horses I am concerned about the extra heat that will be generated. What does the panel think is the best way to keep her cool?
My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
robgt said:
I have had some further suggestions made about fettling Pearl a little more, to the tune of an additional 50 BHP . Whilst she will then boast approximately 520 Horses I am concerned about the extra heat that will be generated. What does the panel think is the best way to keep her cool?
My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
Could the people discussing the further fettling not suggest how the heat can be dissipated? I'm assuming BR so would also assume they'd know best how to achieve that. My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
Won't Mikeyk have that kind of of horsepower? How is the heat being dealt with?
Whatever you do, please don't make it any more noisy!
There would not be an appreciable amount of extra heat produced and as the stock cooling system is perfectly able to dissipate sufficient heat, you should not encounter any problems.
I would not remove the sound insulation under the bonnet as this will not be making any difference anyway to the underhood temperatures and will protect the thin skin of the hood, and hence the paint, from excessive thermal loads. If you really wish to reduce underhood temps, then wrap the exhaust headers with insulation, such as Thermo-Tec exhaust wrap and this will not only significantly reduce heat soak, but will improve exhaust gas scavenging and could further improve power.
http://www.thermotec.com/products/category/1/exhau...
You can also increase the efficiency of the cooling system if you so desired with a performance coolant, such as the "water wetter" that inproces thermal conductivity between the coolant and the radiator.
http://www.redlineoil.com/Products.aspx?pcid=10
8Tech.
I would not remove the sound insulation under the bonnet as this will not be making any difference anyway to the underhood temperatures and will protect the thin skin of the hood, and hence the paint, from excessive thermal loads. If you really wish to reduce underhood temps, then wrap the exhaust headers with insulation, such as Thermo-Tec exhaust wrap and this will not only significantly reduce heat soak, but will improve exhaust gas scavenging and could further improve power.
http://www.thermotec.com/products/category/1/exhau...
You can also increase the efficiency of the cooling system if you so desired with a performance coolant, such as the "water wetter" that inproces thermal conductivity between the coolant and the radiator.
http://www.redlineoil.com/Products.aspx?pcid=10
8Tech.
robgt said:
I have had some further suggestions made about fettling Pearl a little more, to the tune of an additional 50 BHP . Whilst she will then boast approximately 520 Horses I am concerned about the extra heat that will be generated. What does the panel think is the best way to keep her cool?
My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
Rob, stop talking when you are driving!My first thought was a V12 bonnet, don't want to do that . I prefer Pearl to keep her V8 identity.
Remove the layer of insulation under the bonnet. Might do that anyway though the benefit must be limited.
Have some slats cut into the bonnet. That is a No No. Pearl must remain discreet at all times. I wish her to maintain her sleeper status.
Sensible suggestions only please
Question 1. Do you have a heat problem?
The use of ceramic coatings in some equipment to ensure thermal insulation, such as exhausts is easily done. Reducing the heat radiating from the big heat source is the quick kill.
There are some new materials that you can replace or supplement the original Aston supplied materials with.
However I would first refer you to question 1.
If the answer is yes, I'll suggest some interesting solutions.
The use of ceramic coatings in some equipment to ensure thermal insulation, such as exhausts is easily done. Reducing the heat radiating from the big heat source is the quick kill.
There are some new materials that you can replace or supplement the original Aston supplied materials with.
However I would first refer you to question 1.
If the answer is yes, I'll suggest some interesting solutions.
Edited by divetheworld on Saturday 16th November 20:13
8Tech said:
There would not be an appreciable amount of extra heat produced and as the stock cooling system is perfectly able to dissipate sufficient heat, you should not encounter any problems.
I would not remove the sound insulation under the bonnet as this will not be making any difference anyway to the underhood temperatures and will protect the thin skin of the hood, and hence the paint, from excessive thermal loads. If you really wish to reduce underhood temps, then wrap the exhaust headers with insulation, such as Thermo-Tec exhaust wrap and this will not only significantly reduce heat soak, but will improve exhaust gas scavenging and could further improve power.
http://www.thermotec.com/products/category/1/exhau...
You can also increase the efficiency of the cooling system if you so desired with a performance coolant, such as the "water wetter" that inproces thermal conductivity between the coolant and the radiator.
http://www.redlineoil.com/Products.aspx?pcid=10
8Tech.
I would not remove the sound insulation under the bonnet as this will not be making any difference anyway to the underhood temperatures and will protect the thin skin of the hood, and hence the paint, from excessive thermal loads. If you really wish to reduce underhood temps, then wrap the exhaust headers with insulation, such as Thermo-Tec exhaust wrap and this will not only significantly reduce heat soak, but will improve exhaust gas scavenging and could further improve power.
http://www.thermotec.com/products/category/1/exhau...
You can also increase the efficiency of the cooling system if you so desired with a performance coolant, such as the "water wetter" that inproces thermal conductivity between the coolant and the radiator.
http://www.redlineoil.com/Products.aspx?pcid=10
8Tech.
part of the reason I went for the pinnacle ceramic coated exhausts
Messing with the cooling air flow through a car is not something to "dabble" with
You can easily do more harm than good
8Tech said:
8 Tech, I'm always interested in trying to cool down that thermonuclear reactor that we have under bonnet, do you have any experience with this product? Do you know if it works or is it a bit of a, "try on", and, "may", reduce cooling.Having said that, if it did work and did induce further cooling, would this not be negated by the thermostat, in that it would get cooler and therefore the thermostat would start to close up?
Is there a Thermostat that begins to open sooner and stays open more, in effect running at a lower temp....?
I understand the need for more power.
However now I have upgraded to a DBS there is enough power for me.
Tonight I really planted the car on open roads and you get pinned to the seat when using all the range, change gear and your chucked back in your seat, change again then look at the speedo
I mostly go from fourth into sixth as you really can't use anymore power on the road.
So the new models have 50 bhp more but I can't see how you can use that safely or legally.
I do press on in this car don't get me wrong but im just saying there can be too much
Rob have you driven a V12?
However now I have upgraded to a DBS there is enough power for me.
Tonight I really planted the car on open roads and you get pinned to the seat when using all the range, change gear and your chucked back in your seat, change again then look at the speedo
I mostly go from fourth into sixth as you really can't use anymore power on the road.So the new models have 50 bhp more but I can't see how you can use that safely or legally.
I do press on in this car don't get me wrong but im just saying there can be too much
Rob have you driven a V12?
MaverickV12 said:
8Tech said:
8 Tech, I'm always interested in trying to cool down that thermonuclear reactor that we have under bonnet, do you have any experience with this product? Do you know if it works or is it a bit of a, "try on", and, "may", reduce cooling.Having said that, if it did work and did induce further cooling, would this not be negated by the thermostat, in that it would get cooler and therefore the thermostat would start to close up?
Is there a Thermostat that begins to open sooner and stays open more, in effect running at a lower temp....?
Yes, I have and do use it in a supercharged 5.6 V12 BMW with no other cooling system mods apart from a smaller waterpump pulley to increase coolant flow rate.
It works the same as "Shower Shine", reducing the surface tension and giving better thermal conductivity between the coolant and the surfaces it touches, both in removing the heat from the engine and dissipating it into the radiator.
The thermostat is temperature fixed so it will not affect its operation at all. The thermostat is the ultimate controller of the coolant operating temperature so unless your coolant temperature continues to increase, despite a fully open thermostat, then you do not have a cooling system issue in any case.
The point I tried (but clearly unsuccessfully) to make in my original response.
Hope that helps,
8Tech.
V8 Animal said:
I understand the need for more power.
However now I have upgraded to a DBS there is enough power for me.
Tonight I really planted the car on open roads and you get pinned to the seat when using all the range, change gear and your chucked back in your seat, change again then look at the speedo I mostly go from fourth into sixth as you really can't use anymore power on the road.
So the new models have 50 bhp more but I can't see how you can use that safely or legally.
I do press on in this car don't get me wrong but im just saying there can be too much
Rob have you driven a V12?
I keep reading about how the aston is underpowered compared to its rivals (vanquish vs f12 ,dbs vs 599 etc) yet never once have I thought'this needs more power' ,the opportunities to use 510bhp on public roads is so limited .However now I have upgraded to a DBS there is enough power for me.
Tonight I really planted the car on open roads and you get pinned to the seat when using all the range, change gear and your chucked back in your seat, change again then look at the speedo
I mostly go from fourth into sixth as you really can't use anymore power on the road.So the new models have 50 bhp more but I can't see how you can use that safely or legally.
I do press on in this car don't get me wrong but im just saying there can be too much
Rob have you driven a V12?
robgt said:
Whilst she will then boast approximately 520 horses ...
Only 520 bhp? Oh how awful! How do you manage?You need to see Rachael again. She will tempt you with a more suitable Vantage.
565bhp, 0 to 60mph in 3.9 secs, top 205 mph.
I will just have to live with my 420 bhp.
0 to "You're Nicked" in 6 secs.
8Tech said:
Hi Mav,
Yes, I have and do use it in a supercharged 5.6 V12 BMW with no other cooling system mods apart from a smaller waterpump pulley to increase coolant flow rate.
It works the same as "Shower Shine", reducing the surface tension and giving better thermal conductivity between the coolant and the surfaces it touches, both in removing the heat from the engine and dissipating it into the radiator.
The thermostat is temperature fixed so it will not affect its operation at all. The thermostat is the ultimate controller of the coolant operating temperature so unless your coolant temperature continues to increase, despite a fully open thermostat, then you do not have a cooling system issue in any case.
The point I tried (but clearly unsuccessfully) to make in my original response.
Hope that helps,
8Tech.
Hi,Yes, I have and do use it in a supercharged 5.6 V12 BMW with no other cooling system mods apart from a smaller waterpump pulley to increase coolant flow rate.
It works the same as "Shower Shine", reducing the surface tension and giving better thermal conductivity between the coolant and the surfaces it touches, both in removing the heat from the engine and dissipating it into the radiator.
The thermostat is temperature fixed so it will not affect its operation at all. The thermostat is the ultimate controller of the coolant operating temperature so unless your coolant temperature continues to increase, despite a fully open thermostat, then you do not have a cooling system issue in any case.
The point I tried (but clearly unsuccessfully) to make in my original response.
Hope that helps,
8Tech.
could not see any mention of compatibilty of the water wetter with the OAT coolant used in our cars.
8Tech said:
smaller waterpump pulley to increase coolant flow rate.
I read the thread and missed this gem, so damned obvious. the V12 drive belt tensioner (of which I have just put a new one on) is as powerful as can be, and if the water pump (of which I have just put a new one on) were made to run, just a bit faster, that might add to the efficiency of the coolant system.Where do you get the revised smaller pully from.......
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