NOS in a Noble?

[caccobra]

No mistaking the famous clamhole.......

http://videos.streetfire.net/video/0...f79726bbec.htm

Chris, did you tell this poor guy it was Carmen Electra's car?

[Brav]

No. Probably mistook me when I popped out in the gold thong.

[Lotusfamily]

Can whoever owns the car with the clam hole and fan let us know the specifics on what you did (pics and info), we are going to have Greg do our instal on our comming 2 m400's and would really like to incorperate this mod. Thanks , The Miller family.

By the way if this is the same car as the previous post about this type of mod, nevermind I have read through it, but on that car I didnt think the fan was exposed (like it better exposed).... Just let us know, thanks again.

[Brav]

Well, you will have to sort thru a lot of BS, but here is the original thread... something like 300 posts. its somewhere around #180

http://www.nobleforums.com/showthrea...ight=clam+hole

Search for "clam hole" and you will find some other info.

[DrDaKine]

Originally Posted by Lotusfamily

Can whoever owns the car with the clam hole and fan let us know the specifics on what you did (pics and info), we are going to have Greg do our instal on our comming 2 m400's and would really like to incorperate this mod. Thanks , The Miller family.

By the way if this is the same car as the previous post about this type of mod, nevermind I have read through it, but on that car I didnt think the fan was exposed (like it better exposed).... Just let us know, thanks again.

When I was still able to track, I thought about incorporating this idea. Just one suggestion that occured to others and myself: Yor're going to be blowing hot air directly into the intended slipstream that supplies the IC intake. I thought about this and wondered if a cowling fabricated to direct the fan flow to either side would work better (like a low scoop with one end cut off and placed sideways over the fan). That way, the flow would be directed at the slipstream over the current vents on each side. It's anyone's guess as to how much of this exiting heat still finds its way back down the IC duct, though. Some yarn tell-tales might help, but smoke and a windtunnel would probably be necessary.

[Paul Cundy]

Originally Posted by DrDaKine

When I was still able to track, I thought about incorporating this idea. Just one suggestion that occured to others and myself: Yor're going to be blowing hot air directly into the intended slipstream that supplies the IC intake. I thought about this and wondered if a cowling fabricated to direct the fan flow to either side would work better (like a low scoop with one end cut off and placed sideways over the fan). That way, the flow would be directed at the slipstream over the current vents on each side. It's anyone's guess as to how much of this exiting heat still finds its way back down the IC duct, though. Some yarn tell-tales might help, but smoke and a windtunnel would probably be necessary.

Dr D
Yep done this and here are the results;

http://paulcundy.smugmug.com/gallery/359222/12/67418697

and these

http://paulcundy.smugmug.com/gallery/359222/12/67420889

someone somewhere will be able to retreive the thread.
Regards
Paul C

[Lotusfamily]

Hey guys thanks for the info , forgive my stupidity Paul but does the graph test show that there is an effect with this style vent or that there is no/little effect from it? Cant really understand the results ......

[Brav]

Check this thread for the results

Forgive the clutter of this thread as well...

[Paul Cundy]

Originally Posted by Lotusfamily

Hey guys thanks for the info , forgive my stupidity Paul but does the graph test show that there is an effect with this style vent or that there is no/little effect from it? Cant really understand the results ......

No these results were not for this mod. the first graph is for the standard clam. the results show the temps when stabilised of the air at; top of the cabin roof, top of the flat engine deck, in front of the IC core and behind the IC core. These are measured during race qualifying i.e. at speeds 70 - 100 mph on a hot day in england - 23,c ambient. they are taken with the car running and then monitored when stopped. The first one shows that the air going into the front of the IC core is hotter than the air going over the roof but a couple of degrees cooler than the air on the top of the engine deck - i.e. there's incomplete dissipation of the engine deck air. The second one shows the speed with which the temp of the back of the IC rises when stationary - the so called heat soak effect.

the second graph shows the same temp sensors but with my FAstback fitted. what these show is the IC working better as the temp post IC is hotter than pre IC i.e. the airs been heated by the forced flow over the IC core.

The hole in the clam mod works because we know the air where the hole is is normally static and non energised. The fan energises this area of normaly gently tumbling air and blows if forcefully into the flow coming of the back of the cabin roof thereby improving heat loss.

Anyway thats what I think.
Regards
Paul C

[Lotusfamily]

Thanks again Paul that helps a ton. Im gonna run all this by Greg when we contact him to see what he thinks. Sorry to hijack this post by the way.

Just a thought but would cutting/instaling proper intake/vents through the clam behind the drivers and pass. window that open up to the rear deck allow for the area to cool and blow out the space or would this push the air across the deck and into the IC intake? Again a non-tech thought.