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Fitting Racing Beat Revi Ramair duct

Area for car DIY ideas and how-to's - NOT questions.
Fitting strakes, taking the bumper off, or changing exhaust...
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warpc0il
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Fitting Racing Beat Revi Ramair duct

Post by warpc0il » Tue May 08, 2012 9:37 pm

This is copied from the recent Group Buy thread, just to make it easier to find...

We took advantage of a short break in the weather to get ours fitted today.

I say "we" but Pauline had to do all the crawling around and bending over, as I've still got these :swear: :swear: kidney stones :-x

Anyway, a few tips for anyone who has yet to fit theirs...

We jacked the front of the car up and rested on axle-stands, as this makes it much easier to turn the steering and make space to reach the wheel-arch clips. It also meant it was easier to get the bolts out from under the spoiler (apparently) and get the foglight connections off and on again.

The RB instructions don't say anything about removing the blanking from the bottom of the upper grill but, obviously you need to do this for the new duct to work #-o

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^^ See the home-made lower grill :wink:


Putting double-sided tape around the panel hole held the foam donut in place while the duct was being manoeuvred into place.

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We fitted Clive's new brackets =D> in front of the polystyrene, using top-hat washers to locate and allow the bolts to be tightened without crushing the foam. I had one such washer anyway and there's one made redundant when you remove the old intake hose. Having the brackets that little further forward brings the mouth of the intake snug against the rear of the grill, when the bumper is refitted.

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The ambient air temperature sensor was removed to get the duct in place and was too tight to refit on its original mount, so I drilled a 6x8mm oval hole in the recess on the intake and fitted the sensor there. I assume the recess is designed to allow clearance for this sensor as it's mounted on the deeper US bumper-bar. Anyway, it looks neat, and it should read true ambient rather than the stagnant air behind the bumper. 8)

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The wire for the bonnet catch switch looses its anchor-hole, so I replaced with a surface-mount clip.

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The exit of the duct was nice and tight against the foam donut

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Once it all goes back, the front doesn't look any different.
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Even close-up it's hard to tell.

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So, does it make any difference on the road?

Well it sounds much the same at idle, even revving the engine while parked.
In my case this could be something to do with my VFAD being seized open! :shock:
I didn't know until I was playing with it later :roll:

On the move the engine was very willing though the difference was quite subtle, probably because the air temperature was down at 10C anyway and it was misty - both of which improve engine performance. I expect a more noticeable difference in hot and dry weather.

I wondered what impact it would have if I approached the back of a truck and lost positive air pressure to the front of the car as I picked-up the slipstream. It was very difficult to tell as any loss of power is more than made-up by the draw of the slipstream itself.

One thing I did notice, twice, was driving down winding roads that I know well I was having to brake a bit harder than usual for stops. That would suggest that she was either accelerating harder out of the previous turn or building speed stronger down the straights.

By the time I turned and headed back home I was avoiding every little bump in the road as my lowered suspension was sending shock waves directly through to those :swear: :swear: kidney stones :angry: :tear:

PS. My kidney is fine now and the car is still running great with the intake, including a track day at Blyton Park. 8)
Last edited by warpc0il on Sun Jan 21, 2018 6:32 pm, edited 1 time in total.
Reason: Replaced Photobucket links with embedded photos
Dave
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warpc0il
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Re: Fitting Racing Beat Revi Ramair duct

Post by warpc0il » Tue Mar 19, 2019 4:46 pm

To get a good seal between the outlet of the ram scoop and the inlet of the oem airbox I used a section of the original VFAD housing/hose
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A tab made of duct tape allows you pull it back to seal with the original airbox
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Where it's held by a couple of stainless self-tapers
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You can also remove the clip for the vfad vacuum hose, which makes removing the airbox much easier*
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*This is also a great tip for all 192 owners, who don't have a vfad but they do have the clip that gets in the way.
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New Duke (Wed Mar 27, 2019 10:33 pm)
Dave
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