Further modification to the standard intake system

[FGrob]

I couple of months ago I saw a thread on SC about the standard over wing pipe which is used in the standard intake system, although mine is modified I still used the standard air box and overwing pipe, this is the pipe removed:





It basically secured to the top chassis rail and exits into the engine bay - quiet high up I will add, this is where it should go:



So I thought I would take it off to see where it came out, a bit of a surprized to see this the other side, which was confirmed on SC to be correct:



I thought this would be a little restrictive, so I decided to remove the whole lot and just finish with an elbow pointing towards the side vent, I'm convinced the air flow will be better and should be a little cooler, this is what it looks like:



Here's one with the Markiii pipe in place:



I've not run it yet but it will be interesting to hear what it sounds like, it might need a re-map but it's due one sometime any way.

Nearly back together   s:D s:D    s:bounce: :bounce: s:bounce:    s:oops: :oops: s:oops:  

Rob

[stargazer30]

That cars so clean its just scary.  Has it actually done any miles to use the air intake?   s:crazyeyes: :crazyeyes: s:crazyeyes:

[FGrob]

That cars so clean its just scary.  Has it actually done any miles to use the air intake?   s:crazyeyes: :crazyeyes: s:crazyeyes:

Yep it's done over 20000 now.  s:D s:D    s:wink: :wink: s:wink:

[StuC]

Have I read this right, once the air comes in through the side vent, it is not directed in any way other than the natural shape of the bodywork?

What distance have you got between wing vent and your new intake? Do you not get bleeding past the wheelarch liner?

[trevsmr2]

How does the intake get the cold air ,the side vent doesn't go into the rear wing ,

[FGrob]

The side vent is pretty slack in it's fitment, so there is a natural flow through, plus the plastic liner allows flow through into the cavity as it's not a sealed fit so you have increased the available air using the inner wing as the source, the original pipe was pulling air from the inside of the engine bay, near the top of the engine - more heat, with that very large cable stuck in front of it so it's not exactly making a great job of drawing in cool air.

I look at it as an easy way to clean up a somewhat difficult and long path to get air to the engine as quickly as possible, I think the sound will be interesting.

Rob.

[StuC]

I'll be following this then, as I am getting an AEM next month if everything goes according to plan, so I will look to implement the same.  :-) :-) :-)

[FGrob]

That cars so clean its just scary.  Has it actually done any miles to use the air intake?   s:crazyeyes: :crazyeyes: s:crazyeyes:

Here you go, just a few more pic's of what state it's in up until yesterday, not bad for a car coming up to 7 year old with 20,000 on the clock   s:D s:D    s:wink: :wink: s:wink:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:  





Just got to polish me tips then we are good to go.   s:lol: :lol: s:lol:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:  

Rob.

[FGrob]

How does the intake get the cold air ,the side vent doesn't go into the rear wing ,

Here's a view with the liner in place, the volume of air in that cavity is more than sufficent to meet the requirements of the intake and will draw in cool air naturally throught the various opening.

 

[Goeman]

What's the inside diameter of that Samco hose Rob?

[FGrob]

What's the inside diameter of that Samco hose Rob?

Hi Russell.

I'm running 70mm I/D straight through on all the Samco's, just checked the I/D of the eblow that goes through into the engine bay (the one I removed) it was 64mm I/D plus the restriction.

Rob

[Goeman]

Thanks Rob. I only ask because I'm at work so can't check myself.

I have a makeiii pipe but haven't fitted it yet because it was from a batch that didn't fit the airbox properly. I might as well do what you've done when I grind it down and fit it. Annoyingly whilst Merlin Motorsport do the 70mm hose, they do not an intake to fit it.   s:roll: :roll: s:roll:   I think I'll go to ebay for it instead.

[ChrisGB]

Will be interesting to see a comparison of before and after IATs with this modification. I find the turbo setup that picks air up from the same location gives a +25 Deg C above ambient result with the car stationary, although this does fall to +5 Deg C when on the open road.

Chris

[Goeman]

Hi Rob.

Are the Are the two hoses you're using between the MAF and the TB 70mm also? And are those larger clips necessary or just shiny overkill?

[FGrob]

Hi Rob.

Are the Are the two hoses you're using between the MAF and the TB 70mm also? And are those larger clips necessary or just shiny overkill?

Hi Russell.

Just checked to make sure - yes it is, even the alloy make-up piece is 70mm O/D. If you are using the same clips as me you will need to reinforce the standard airbox opening as this is pretty soft plastic and it will deform, I just used a piece of exhaust tubing and secured it in place with a screw just to get the first bite right.

Rob,

[Goeman]

So it's 2 x 70mm 90deg elbows, 1 x 70mm coupling, 1 x 70mm joiner, 1 x 70mm air inlet/trumpet (most seem to be 63mm or 76mm, can't find a true 70mm one) and 1 x markiii pipe (which I already have).

I'll probably just use jubilee clips and I wont do them up very tight. It's not like the inlet system has much pressure on it. I might use a 76mm to 70mm reducer elbow as well as 76mm air inlets are freely available.  

Thanks for your help Rob.

[FGrob]

So it's 2 x 70mm 90deg elbows, 1 x 70mm coupling, 1 x 70mm joiner, 1 x 70mm air inlet/trumpet (most seem to be 63mm or 76mm, can't find a true 70mm one) and 1 x markiii pipe (which I already have).

I'll probably just use jubilee clips and I wont do them up very tight. It's not like the inlet system has much pressure on it. I might use a 76mm to 70mm reducer elbow as well as 76mm air inlets are freely available.  

Thanks for your help Rob.

Hi Russell.

I machined the trumpet down from one of the universal ones so it was a nice smooth fit. I got all my 70mm (Samco and Alloy tube) from Demon Tweeks.

Rob.

[Goeman]

My machining efforts would be something along the lines of hacksawing a bit off of the end. Thanks for you help Rob.

[AmeR]

Just dragging this back up, was wondering if you could recall what attached the pipe inside the wing? Was thinking of removing mine since I am looking at putting my filter below the rear light.

[trevsmr2]

Just dragging this back up, was wondering if you could recall what attached the pipe inside the wing? Was thinking of removing mine since I am looking at putting my filter below the rear light.

Shows the fittings on the first page ,two bolts

[Mike_V]

Just dragging this back up, was wondering if you could recall what attached the pipe inside the wing? Was thinking of removing mine since I am looking at putting my filter below the rear light.

Or you can cut the existing pipe shorter Paul so that the air flow is just in front of your intake filter, whatever you see as the best option for you.

[FGrob]

Just dragging this back up, was wondering if you could recall what attached the pipe inside the wing? Was thinking of removing mine since I am looking at putting my filter below the rear light.

Or you can cut the existing pipe shorter Paul so that the air flow is just in front of your intake filter, whatever you see as the best option for you.

That's the reason why I pulled it out Mike, the pipes not got a natural flow, the engine is always drawing from the inside of the engine bay - no natural flow, certainly not with that pipe in front of the opening, taking it out allows a more natural flow through the wing from the side vent and other openings which are within that area - well that's the basis I've worked on.


Remember this is what the other end of the pipe is attached to (two plastic push type clips hold it in place), no other ducting the other side just an opening with a restriction.

[Mike_V]

Very interesting philosophy Rob, have you noticed any difference?

Mike

[FGrob]

Not yet Mike, I've only just got the relacement tyre today as the company I brought it from delivered the wrong one last week  s:evil: :evil: s:evil:  

I'll give it a go over the weekend with a bit of luck, weather permitting.  s:D s:D  

Rob.

[AmeR]

Are the other 2 clips or bolts up and over the wing?
I'm presuming that the best way to get this out will be to remove the arch liner?