wheres the best place 2 route your cold air feed???

[Swervin_Mervin]

Squeezed next to the rad. Less ducting and restriction and straight in to the box.

[Coops]

yeah was much better to begin with till it began to collapse, then it was waz!

the space next to the fog is plenty big enough! no worries its just the getting the flow direct is tricky cuz of the subframe, i may try the swervin approach n all see how it goes!

[Mattie]

ye the swervin approach sounds like sumthin 2 look in2...never though about that tbh

luks like im off out 2 get sum ducting 2moz morn

[stan]

best place is like Grp A...where washer bottle is.

[jwarren2k2]

i thought that the best way to get more power was to get cold DENSE air in, hot air out? If this is the case, how come the washer bottle route is so good? i would have thought ramming air in from the fog/next to fog would have been the best idea as the air would be denser (but not neccessarily colder in the summer?)?!

any views?!

[stan]

yup denser air gives more power...

aerodynamically, to have a decent airfeed from the front bumper you would need a splitter to increase pressure differential.

otherwise the area at the base of the windscreen to behind the bulkhead has highest pressure diff.

[Mattie]

would there be enough air entering though through the washer bottle option?

whats better.....more air or denser air?

[stew]

the r21 ducting, to the scuttle pannel where the washer bottle is, is prob the best option. hence why the ran it as group A spec.

the front bumper is a good place for an air feed, but is more likely to suck up water than located at the base of the windscreen.

either will give the same air flow rates id have thought.

there is no air forcing going on with either tho - air is being sucked in not forced in!

[stan]

the thing with a bumper feed, is that you get a lot of turbulence due to high gas speed....this makes it hard for decent are flow through a relatively small orifice (i like that word!).

as for high airflow against density...well, you arent going to increase volumetric efficiency by any noticeable ammount with a bumper feed, so denser air would be the better option.

also technically air IS forced into the engine...NOT sucked in. its the change in volume as the piston travels towards BDC that creates airflow into the chamber, due to the atmoshperic pressure outside being higher than that inside. hence naturally aspirated (NA).

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