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(Post Link) post #1 of 17 Old 05-06-09 Thread Starter
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Fitting CDA to lowered car

Hey,

Tried fitting a CDA to my JTS which is on eibach pro kit springs (-30mm). Problem I'm having is with the position of the MAF after the 90 degree elbow, once I attach the CDA (using a small silicon coupler), there is simply not enough room for the CDA. It is impossible to add some ducting from beneath the CDA to take it away from the road and out to the front of the car.

Has anyone else expereinced the same problem and how did ye get around it?

I could source some more silicon and mount it horizontally, this would add another 90 degree bend but I wouldnt mind that once the ducting is positioned correctly.

Other option is to get rid of the original duct from MAF to TB, shorten this and position the MAF along there, this would decrease the length of intake facing downwards. Quite a bit of modifying though and difficult to measure up and get correct silicon hose lengths.


All help appreciated.

  • Alfa 156 Silver 2003 JTS
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hi, what i have done is mounted the CDA vertically between battery area and headlight, mounting it to a bolt that secures the battery tray. then i used one 80>70mm 90 degree reducer pipe, and one 70mm short elbow pipe. both from ebay. im assuming the JTS layout is the same as the TS.

pics below.







hope this helps!

theres a flexible pipe from the bottom of the CDA to the foglight grille area for the feed.
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Other thing you could do is put the battery in the boot and mount the CDA there. Would be good for weight distribution too. Its something I've been thinking about for a while now..
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Have also wondered that if you moved the battery how much space there is under the wheel arch
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Quite a bit of space there as well, but with the battery in place there is no space to run a pipe there as the top of the battery is very clode to the inside of the bonnet when it is closed.
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(Post Link) post #6 of 17 Old 08-06-09 Thread Starter
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Cheers for the pics Aziraphale. I'm going to have to move my MAF to a horizontal position, and as expected measure on and get the right pieces of silicon if I want to fit this CDA. Moving the battery would give more room but my problem is with the MAF and CDA in a vertical position I cant fit an inlet duct to the front away from the road.
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why cant you fit an inlet duct away from the road?

mine is one of those flexible pipes, and bends 90 degrees from the bottom of the CDA, then up-and-over the aircon pipes, and points towards the foglight grille from slightly above that area.
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Mine is flexi too but with the MAF and CDA in a vertical position, to fit a flexi pipe (while keeping a decent diameter) the bend will literally be dragged along the road.... Thats how close it is with the MAF in a vertical placement.
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oh right, i have the MAF in its standard location, never saw reason to move it.
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Standard location on the JTS is vertical, that why I wont be able to use the standard duct from MAF in. More silicon required!
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do you have a photo of the standard JTS engine bay?
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Standard position for the MAF on a V6 is vertical as well, mine's horizontal though for space reasons.
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Quote:
Originally Posted by aziraphale View Post
do you have a photo of the standard JTS engine bay?
I'll try get some time to take and post one later on. Internet problems though at home at the moment. Basically (in reverse) it is long black duct with a 90 elbow built in going to MAF then filter housing and then resonator box.
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ahright ok
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Originally Posted by Pud237 View Post
Standard position for the MAF on a V6 is vertical as well, mine's horizontal though for space reasons.
Mines vertical - no ducting - just need to avoid puddles, much to the dissapointment of my youngest son
 
(Post Link) post #16 of 17 Old 09-06-09 Thread Starter
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Depends on how low it is, mine would be far too low to get away with it. I'll get some time to take measurements and buy some silicon piping some time soon enough hopefully. Looking forward to it.
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Finally got this fitted this evening, didnt take any pics, had ordered the wrong diameter tubing, got 60mm instead of 70mm. All done just with adaptors until I get to order the correct size but that will be any easy swap over. Runs nice and smooth and nice sound under heavy load. Quieter and more refined than running with standard box (BMC filter) with no resonator or ducting.
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