Never seen an exige with the roof off until I saw Seans car.
How fooking small and poxy is the slot in thr back of the roof !!! 
It amazes me we have these massive threads/bunfights about I/C’s etc when the possible air flow into them is so small
As JFK has done I think all exigers would get a much bigger benefit by just improving the air flow to even a STD I/C
Very true … hence adding 2 side air feeds quadruples the Airflow in my calculation 
Despite the bun-fight that will ensue, it never ceases to amaze me the fuss made by fokes dremmelling their letterbox. “It makes a huge difference” is the usual call. I’ve never seen any science to confirm that it’s worthwhile.
I believe the front air scoop area is the most important as the rest will venturi through the smaller hole,it’s a gas not a liquid.
Sorting the mesh, now that would make sense, as would adding more collection area (side scoops)
Think RLS did a test and at 70mph you get x3 the airflow with the kit I fitted over just the roof scoop .
which kit is that?
There was indeed a test done in the States with data to back It up that dremelling the lettetbox made a big incrrase in Airflow …
Was very well documented … may have been lotus talk ??
A good search should find it …
The three way air duct kit , same thing that jfk has done himself .
Chargecool it. Problem / bunfight over 
[quote=jfk]There was indeed a test done in the States with data to back It up that dremelling the lettetbox made a big incrrase in Airflow …
Was very well documented … may have been lotus talk ??
A good search should find it …
[/quote]
Haha, think you might find RLS did the testing. Ask Frank, he’ll comment I’m sure.
The point was about the letterbox, not the “3x airflow with scoops”. That may well be the case, but as pointed out, it was an RLS test! I actually believe it’s a worthwhile mod and have done it myself.
I’ve read Lotus Talk and recall ‘letterbox chat’, just as I recall seeing it here. But I don’t recall anything other than peoples feeling in their water.
[quote=Whiteysback]
Haha, think you might find RLS did the testing. Ask Frank, he’ll comment I’m sure. [/quote]
lol … best not to methinks !!
Even big Frank can’t argue that more airflow = better cooling , test or no test .
[quote=661]Despite the bun-fight that will ensue, it never ceases to amaze me the fuss made by fokes dremmelling their letterbox. “It makes a huge difference” is the usual call. I’ve never seen any science to confirm that it’s worthwhile.
I believe the front air scoop area is the most important as the rest will venturi through the smaller hole,it’s a gas not a liquid.
[/quote]
Ok so using your theory if I leave my front scoop the same size and reduce the midpoint to a pin prick I will still have the same airflow due to the venturi effect?
If you have ever looked you can take around a third extra out of the midpoint which will make a difference, also the seals at that point are piss poor and need tarting up.
NOt directly related but it amazed me how small the roof scoop on the Pagani Zonda is - and that is hardly underpowered. Funny old thing this gas flow stuff.
Ok point taken. More exactly the term should be that the reduction in air flow is far from a direct relation to the bottle neck reduction. We’re back to guessing here as I’m no aerodynamacist but logarithmic would seem a reasonable assumption.
Therefore to increase the area by a’third’ would result in single figures % increase in flow
The Zonda Is an N/A Merc V12 so the scoop is purely an air intake so does not need to be massive
Chargecooled mine.
Right then …
Who’s brave enough to post their charge temps with both intercoolers and chargecoolers ???
Assuming of course that those of you with chargecoolers …
A) have no leaks .
B) have a pump that works .
C) have a radiator big enough to cool all that latent heat of your gallons of water .
Lol … I’ll take cover now
Its all BS, NA rocks!
[quote=jfk]Right then …
Who’s brave enough to post their charge temps with both intercoolers and chargecoolers ???
Assuming of course that those of you with chargecoolers …
A) have no leaks .
B) have a pump that works .
C) have a radiator big enough to cool all that latent heat of your gallons of water .
Lol … I’ll take cover now [/quote]
Hey is that a dig at me with the pump?
i do remember me saying to Pesky that my car felt sluggish, only to find the earth wire hade been left off the charge cooler pump after they mapped the car 
I am more than happy to take readings if we do a test i’m not scared at all