TVR - ACT Induction Kit

ACT Induction Kit

Written by Darren Jones

Feb 17, 2014 at 07:06 AM I've heard the explanation a couple of times that all an engine is, is a big air pump.  The better you can get air in and then expel it, the more power you gain.  To this end I ordered the ACT Induction kit to replace the normal air filter and air ducts to route the air to the inlet manifold.

Standard duct (top) is a thin flexible pipe that has ridges down it's entire length and a little restrictive.  The ACT ducts are thicker rubber and come in a couple of pieces to enable it to fit through the front wing to draw the cool air in.

The K&N filter also included assists in getting that better air flow to the engine.

The standard manifold elbow joint also has a case of the wrinkles and is replaced in the kit.

The new elbow joint does have a right and wrong way to fit.  Narrow aperture goes to the inlet manifold and wider aperture goes to the air flow meter.  And here you see for the first time these pieces are not a perfect fit, they are made with a lot of excess that you need to trim down.

A little trimming with a sharp knife done cautiously and you get a nice fit.

Keeping that as a start point, then work with the other elbow joint from the air filter to where it comes in to the engine bay.  There is a short metal tube that goes through the front to connect this elbow with the longer tube.  Get this in position first and you can then see how much excess needs to be removed for where the filter is mounted.  You can then finally trim the last piece to size and fit the heat wrap on it.

Trim carefully, but don't be afraid to do it.  There is a lot of excess that needs to be cut away.

All in just a couple of hours to complete working carefully and another step closer to restarting the car.  I'm not 100% happy with the supplied heat shielding - especially as this runs close to the exhaust manifold.  So will be looking to get a new one that runs the full length of the duct.