|1999 Rover 800 825 V6 Coupe with Cold Air Intake.|
Car: 1999 Rover 800 825 V6 Coupe
Colour: Zircon Silver
Cold Air Feeds are a good way to increase the supply of cool air from the front of the car into the air intake system. The cooler the air is, the more dense it is. The denser air contains more oxygen allowing in better combustion, resulting in more power.
You may want to add a cold air intake system to increase the amount of air to a high flow induction filter kit. I have added a cold air feed pipe to the standard air filter box on this car for the purpose of lowering the overall operating temperature of the KV6 engine, hopefully this will help decrease the chances of the car blowing another head gasket!
Any power gains made from adding the air intake hose will just be a bonus. If they are noticeable they I might even consider adding an induction kit in the future!
Cold air feeds can be fitted so that the tubing is just loosely fitted taking air from a cooler place than the normal warm engine bay area. They can also be fitted onto an intake or vent at the front of the car, in the wings, in the bonnet, etc, the only limit being your imagination!
You can purchase performance air filter induction kits that come with tubing, but if you just require the cold air feed then you can buy cold air intake kits which include a pipe with intake piece(s) on the end(s), or you can just by the hose and any other bits required, by themselves, that's up to you.
I choose to purchase all the parts I would require individually as I wanted to make up my own cold air intake feed using a wide tube but I also wanted it to be discreetly hidden from outside the car.
This car is already fitted with a high flow K&N panel filter replacing the original stock air filter.
Anyway, having now driven the car a short distance since I have fitted the cold air feed, I would say that it has had a positive effect on the cars performance, in that the car has now got its kick back! This car used to give you a boot in the back if you floored the accelerator, but it seemed to lose the effect when the alloy wheels were changed from the original Rover Sterling alloys (Lightweight Speedlines (made in Italy)(lots of Ferrari's have Speedline Alloys)) to the much heavier Rover Vitesse alloy wheels.
I am also of the opinion that the cars running temperature has come down to a slightly lower level, and so I have succeeded in what I set out to do. Long live my head Gaskets! :)
After a Lot of Thinking I Decided to Try and Somehow Install a Cold Air Feed in the Already Quite Busy Lower Front Wing Area!
The Air Purge Tank was Obviously Going to be in the Way & the Bracket for the Air Purge Tank was Welded to the Car Body!
A Copy Bracket was Made from a Piece of Aluminium, and some Holes were Drilled in it. Matching Holes were then Transferred Over & Drilled into the Car Body, Then Painted for Rust Prevention.
The New Air Purge Tank Bracket was Riveted to the Car Body.
The New Location of the Air Purge Tank Bracket was Now Far Back Enough to Enable Access to the Bonnet Hole above its Old Position.
At the Front of the Car I Decided to Remove the Front Fog Lights to Create an Air Vent in their Place.
I have Found the Front Fog Lights be of Little/No use in Fog on the Rare Occasion that they have Been Used!
Better to Slow Down & Drive Safely Within the Distance you Can See! (& These Fog Lights Did Not add to that Distance)(They Did Make Thick Snow Fall Look Nicer Though!)
Trial Fitting the Large Neoprene Hose I Purchased. (I Bought the Maximum Size (3 1/4 inch / 83mm inside diameter ducting) that will fit through the Hole up into the Bonnet Area).
This Showed that it would have to be Fitted to One Side of the Fog Light Opening (and the Hose was also too low due to More Obstructions).
It turned out the Horns were in the way. These were Removed, along with their Bracket.
Eventually the Old Bracket was Bent in Such a Way that the Horns Could be Refitted to it, Rather Than Making One/Two New Mounting Brackets or Relocating One/Both Horns.
The Horns and Bracket Refitted to the Car with Clearance Now for the Cold Air Feed.
An Aluminium Adaptor was Purchased Cheaply off ebay and Riveted to the Rear of the old Fog Light Opening.
The Neoprene Hose was Attached to the Adaptor using a Very large Jubilee Style Clip and then the Hose was Fed up through the Hold up into the Bonnet Area.
The Air Purge Tank was Hung Back on its New Bracket. As it was Being Fitted Permanently this Time, the Top Flaps of the Brackets were Squashed Down to Prevent the Air Purge Tank from Ever Shaking Free.
The Neoprene Hose Fits Directly Over the Original Intake Hose located behind the Front Passenger Headlight.
At times of Floods these can always be Pulled Apart to Prevent the Likely Hood of Flooding the Engine.
Although I have Always Avoided Driving Through Flooded Areas Anyway whenever Possible.
All that Remains is to Tidy up the Intake at the Front of the Car. I Decided I Wanted a Stealth (Unseen) Look. First I Filled in the Rest of the Fog Light Opening With Some Black Plastic, Just Leaving the Adaptor / Air Intake Hole.
Next I Used Some More Black Plastic Riveted to the Original Fog Light Surround so that it would Funnel the Outside Air into the Hole.
The Old Fog Light Surround was Placed Behind the Bumper and Fixed in Place with Sealant.
Another Rover Owner Kindly Provided me with Some Fog Light Blanking Plates. I Cut the Rear Channels Out on One of These to Allow Outside Air to Pass Straight Through.
I Then Fitted the Modified Blanking Plate to the Bumper.
Finally the Air Intake Feed was Now Completed and to the Casual Observer, the Front of the Car Looks Quite Normal.
The Eagle Eyed Viewers May Have Also Noticed the Change in Front Bumper Brackets in the photos above!