tunnel mod how can I tell?

[funbobby]

As above really ,recently bought a car advertised with mod done but have to say seems to be a fair bit of heat in that area so is there a way I can tell ?

[Green3R]

Look at the heater box under the front clam.

As standard you have 4 hoses connected to the lower face- these come 2 per side from the front.

The mod involves removing the hoses from 1 or 2 of the 4 ports and directing that airflow up the tunnel.
The 2 exposed ports of the heater box are then blocked off.

What it tends to do is provide positive pressure in the cabin, so if you open a window you should detect airflow from the tunnel and out of the window.

It hasn't made much difference to my car, but the other positive benefit might be that the front turbo gets some cooling airflow over it- and turbo heat doesn't migrate down the tunnel.

[funbobby]

ok thanks will have a look, just how hot would it get without? mine feels warm around handbrake etc that's just on the moderately warm days we have had so no idea what to expect on the hot days

[dave sutton]

Having performed my own mod, I have to say that, while moving, I get cold air coming from around the gear lever boot. But I did also mod the air scoop baffles at the front to get more air in and put vents in the rear wheel arches and whaletail to let more air out at the back. So I may have achieved a greater flow than one without those extra mods.

[JayHeal]

Not my car but google images shows this.



This shows the 2 pipes going into the tunnel and the 2 holes in the bottom of the air box where they used to be.

[Ash MP4 12C]

Drive at around 40MPH, open window, if it gets hot from the gearshift gaiter, no mod, if it stays cool, modded

[funbobby]

neither hot or cold just warm ish, no bellowing from gaitors?