*** UP-DATE ***
Another busy afternoon @ the JMS-Tuning workshop yesterday, began work on finishing the up-rated cold air feeds ( CAF'S )
So the idea started from seeing markcups at surrey rolling road a few months ago but i couldnt justify buying another airbox ( espace V6 ) & another pannel filter then Nickcup172 did the same thing & took me out for a spin, was very impressed, more so with the noise it made when it came on cam @ 5k which ment you could drive below 5k without sounding like your entering a race track then when you did hit 5k ( play time
) it has the noise you want
So heres the work, for those that havent removed a Ph2 airbox & seen the CAF's you probarbly wont be able to make much sense of all this lol
So standard caf along side the new 70mm
As you can see the standard feed is tiny, so this is where the first issue occurs but is easily fixed by abit of chopping cutting, the actual hole from the airbox is 70mm but it gets reduced to under 50mm for some reason, can only think because of space issue, as you can see in the pic below, the right hand side is what clips into the airbox then the piece on the left hand said is the "reducer" that i cut off
So then i got my new CAF & used duct sealing tape from a pipe fitter at work & attached the clips so it was a simple plug and play when removing for serviceing/work on the car
And attached an end to clean it up
Nice & tidy inside
Here's a mock fit of what the CAF looks like when it will be on the car, do bare in mind this is the second cold airfeed, not the one that you see when you open your bonnet that connects to the acoustic valve
There is nothing you can do about the bend, 172 non-cup just doesnt have the room for anything to be done :dapprove: but its still alot smoother/bigger feed then the standard so with that done its installed along with the airbox then the end is fed through the hole where the old feed used to clip in
Then finnaly it was a case of cutting up the other standard feed ( one that connects to the acoustic valve ) & fitting, i ran this down to the wheel arch in this pic
But i have now shortend the wheel arch cold airfeed to rougly 6", so it now just runs straight out of the airbox & stops - no bends, the reason for this you ask? well i did 30 minutes of spirited driving & although the engine bay was red hot all the metal round by the batterey was stone cold so the less bends the better in my opinon & since its cold enough there & the fact the ITG maxogan gets it feed from there i cant see it being a problem
So the conclusion -
Much sharper engine response but more noticable is the pull above 5k along with an engine note change, shame it can only just be heard over the straight through system & de-cat but over all i'm very happy with it the new set-up
James