FLYBOY Blimey you must think Im retarded, So every conceivable shape that has the same distance around the perimeter has the same area within? I dont think so.
As one of a million examples, take a rectangle 1cm by 10cm, the distance around the perimeter is 22cm & the cross sectional area is 1 times 10 which equals 10 sq cm.
We then 'remould the shape ' to make a new rectangle 5.5cm by 5.5cm,this still has a distance around the perimeter of 22cm yet the new area is 30.25 sq cm . Thats over 300% of the original !
Or to take it further lets remould the shape to a circle, the circumference is still 22cm the area using pi now increases to a whopping 38.5 square cm. This is 380% of the original .
Only if a shape is a perfect circle can you not improve on the area for a given perimeter.
No part of the original stock part (apart from the first inch) is any where near circular.
The restrictive creases in the stock part are for clearance to the rad & SC. have found I can still get a double decker bus sideways through the gaps after modification.
I have now completed the
mod, car definately feels quicker, but I will hook up a vacuum gauge to the SC on the connection just before the rotors to get a reading(where the PCV valve normally connects). My guess is with GTT Cold Ram + GTT 63mm throttle+ GTT 'reformed plastic plenum' even at 6500rpm using a small SC pulley (ie alot of suck) at WOT it will never go lower than half a psi below atmospheric. If I achieve 1psi below atmospheric thats bloody good going.
Regards Roland GT Tuning
ps When I have time and 2 old units , I will hacksaw them in half where the crease is/was, draw aroound it onto '1mm square graph paper', then count the squares within the shapes .Next divide the number of squares on the modded example to the number of squares on the stock to get the % increase cross sectional area.