Diesel Cold Air Intake

Jakg · 7th June 2011, 16:51

Anyone done any inventive cold air intakes on a diesel?

Would love to see some pictures...

Mines already had the air intake mk2 thing (i.e. cut the bellows out) but I think it's a really bad idea.

I'd love a direct feed to the bumper vents, but I'm far too worried about hydrolock

Any other suggestions?

COLVERT · 7th June 2011, 19:42

Fit up a BLOWER FAN ?????????????????????????

No response !!!
Guess the idea is too difficult to grasp. Lol.

keir1163 · 8th June 2011, 06:25

In the how to section one member fitted a shannon type tube to the air filter box and ran it down to the air intake at the bottom passenger side of the bumper. Bad idea in flood water however.

when you cut the corrugated part out did it make a difference for you? i am about to do it

Jakg · 10th June 2011, 17:40

Quote:

Originally Posted by keir1163

when you cut the corrugated part out did it make a difference for you? i am about to do it

I bought the car with the intake mod already done, so i can't comment.

I did see this mentioned on the other side... can anyone confirm?

Quote:

Originally Posted by Mark_bonsai

I'm sure I read somewhere that the area of highest pressure is behind the headlights, and as such this is why the original set up for the V6's, mounts the venturi at the end of the shannon tube behind the passenger headlight inside the wing.

ceedy · 10th June 2011, 18:19

my 5 pee's worth .

I noticed a significant improvement in pull , when I removed my OEM fan.

It had been duff for a while and I took it off for 2 months or so to fit a VX bosch motor.

So without it obstructing 50% or so of the intercooler!! . a bit more whoosh was definately there to help the synergy /egr bpass etc ..

lost it when I put the fan back !!

..

maybe we should all fit giant intercoolers

Chris

Starman · 10th June 2011, 18:34

Quote:

Originally Posted by Jakg

I did see this mentioned on the other side... can anyone confirm?
Originally Posted by Mark_bonsai
I'm sure I read somewhere that the area of highest pressure is behind the headlights, and as such this is why the original set up for the V6's, mounts the venturi at the end of the shannon tube behind the passenger headlight inside the wing.

Yes I believe that's right Jack. The guys in the V8 forum go to great lengths to get the right spot for their bonnet vents to either fill or evacuate air in the engine bay.
The area in front of the windscreen being the lowest I think.

Regards. Steve.

James.uk · 10th June 2011, 18:49

I took the front part of my air intake off for a week, I detected no diff, so I put it back on..

...

COLVERT · 10th June 2011, 20:20

James, James. You have to DRIVE the car as well. Lol.

Quote:

Originally Posted by James.uk

I took the front part of my air intake off for a week, I detected no diff, so I put it back on..

...

ardvark · 11th June 2011, 10:42

I think the only way to solve this mystery once and for all is to put a car on the dyno and take a reading. Do the air intake mod and do another reading. Do the mod with the tube feeding from the bumper and take another reading. Members can make their own mind up from the three readings instead of uninformed guesses.

spyder · 11th June 2011, 11:41

Even with an external cooling fan on, would that simulate air being forced in to the air intake from the front. I have opened the air in take up a lot, and moved the cables away from the inlet. Just the openeing not being aligned must make some difference. Also bending the deflectoe plate out the way to allow more air in.

Taking the tube off completely will only allow warm ait into the inlet from the engine bay, especially if the tray is fitted.
Remembering that with all this there is a spinny thing behind the engine to force air into it.

7th June 2011, 16:51	#1
Jakg This is my second home N/A Join Date: Feb 2010 Location: Suffolk Posts: 6,867 Thanks: 0 Thanked 397 Times in 302 Posts	Diesel Cold Air Intake Anyone done any inventive cold air intakes on a diesel? Would love to see some pictures... Mines already had the air intake mk2 thing (i.e. cut the bellows out) but I think it's a really bad idea. I'd love a direct feed to the bumper vents, but I'm far too worried about hydrolock Any other suggestions?

7th June 2011, 19:42	#2
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	Fit up a BLOWER FAN ????????????????????????? No response !!! Guess the idea is too difficult to grasp. Lol. Last edited by COLVERT; 10th June 2011 at 20:23..

8th June 2011, 06:25	#3
keir1163 Loves to post MG ZT+ CDTi Join Date: Jul 2009 Location: castle hedingham Posts: 476 Thanks: 0 Thanked 4 Times in 2 Posts	shannon tube In the how to section one member fitted a shannon type tube to the air filter box and ran it down to the air intake at the bottom passenger side of the bumper. Bad idea in flood water however. when you cut the corrugated part out did it make a difference for you? i am about to do it __________________ Let Battle Commence

10th June 2011, 18:19	#5
ceedy This is my second home All Trophy Blue ,ZT260#50 , ZT CDTI Auto, ZR105+ and 1.8T Firefrost spoiling the Set . Join Date: Nov 2006 Location: Nr Sherborne But in Somerset.. Posts: 6,075 Thanks: 916 Thanked 1,214 Times in 768 Posts	my 5 pee's worth . I noticed a significant improvement in pull , when I removed my OEM fan. It had been duff for a while and I took it off for 2 months or so to fit a VX bosch motor. So without it obstructing 50% or so of the intercooler!! . a bit more whoosh was definately there to help the synergy /egr bpass etc .. lost it when I put the fan back !! .. maybe we should all fit giant intercoolers Chris __________________ The Three Bloo's Wifey's Zr105, MY CDTI & 260 #50 and Number One sons 1.8T in Firefrost When I were a lad Zero to 142 in 10.25 secs at the Pod on my Blown Norton. 210 Kart Champ in 70's

11th June 2011, 10:42	#9
ardvark Al 75 CDTI Tourer Auto Join Date: Mar 2009 Location: Studley Posts: 1,457 Thanks: 1 Thanked 69 Times in 48 Posts	I think the only way to solve this mystery once and for all is to put a car on the dyno and take a reading. Do the air intake mod and do another reading. Do the mod with the tube feeding from the bumper and take another reading. Members can make their own mind up from the three readings instead of uninformed guesses. __________________ ARDVARK

10th June 2011, 18:49	#7
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	I took the front part of my air intake off for a week, I detected no diff, so I put it back on.. ...

11th June 2011, 11:41	#10
spyder This is my second home 75 CDT Auto Tourer , Rover 45 , Astra, Zaffira, Chev Captiva Join Date: Mar 2011 Location: Wilts Posts: 3,342 Thanks: 203 Thanked 436 Times in 360 Posts	Even with an external cooling fan on, would that simulate air being forced in to the air intake from the front. I have opened the air in take up a lot, and moved the cables away from the inlet. Just the openeing not being aligned must make some difference. Also bending the deflectoe plate out the way to allow more air in. Taking the tube off completely will only allow warm ait into the inlet from the engine bay, especially if the tray is fitted. Remembering that with all this there is a spinny thing behind the engine to force air into it. __________________ Chrome skull caps, EGR cleaned (original housing), Mondeo lower mounting, 12V outlets in the armrest and tourer boot, cat fixed, working FBH, Lidl plenum covers, DD with reverse camera.New speakesr/Tweeters with MDF rings. wood dash, Memory leather seats, wooden finished steering and handbrake, Xenon headlights.

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