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Air Filter Box
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Poster Stonehagen Offline
Posted 09/09/18 01:37 PM
Description
The air filter of the roadster seems to collect relatively hot air, with an opening right above the gear box and in short distance to the manifold. Indeed the temperature is 30°C above ambient level with spirited driving in 3rd gear. The temperature in the area on the right side of the air filter is lower, especially after removing the part of the sealing underneath the last 4-5 louvres.
So I opened the box on the right side and closed the old opening. The incoming is now only 15°C above ambient temperature.
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Comments
#532219 - 09/09/18 02:17 PM Re: Air Filter Box [Re: Stonehagen]
milligoon Offline
Talk Morgan Addict

Registered: 20/04/14
Posts: 3055
Loc: Dorset, UK
Which version of roadster do you have?

My 3.0 intake is from above the front of the radiator.
_________________________
Mark - driving
Archie the Old English Sheep Mog...........
2010 Roadster 3.0 V6 (S3) wink

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#532224 - 09/09/18 03:07 PM Re: Air Filter Box [Re: Stonehagen]
Stonehagen Offline
New to Talk Morgan

Registered: 26/04/15
Posts: 14
Loc: Germany
That is better, of course, but very difficult with the 3.7, since the area to the radiator is packed!

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#532231 - 09/09/18 04:09 PM Re: Air Filter Box [Re: Stonehagen]
milligoon Offline
Talk Morgan Addict

Registered: 20/04/14
Posts: 3055
Loc: Dorset, UK
Maybe worth fabricating a tube to take air from louvres in side of bonnet, you may get further temperature reduction?
_________________________
Mark - driving
Archie the Old English Sheep Mog...........
2010 Roadster 3.0 V6 (S3) wink

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#532236 - 09/09/18 04:36 PM Re: Air Filter Box [Re: milligoon]
DirkM Offline
Learner Plates Off!

Registered: 31/07/16
Posts: 321
Loc: Begijnendijk, Belgium
Originally Posted By milligoon
Maybe worth fabricating a tube to take air from louvres in side of bonnet, you may get further temperature reduction?


That's what I am thinking about for my 1993 +4. But I can't deside wether to install a K&N filter or to go for the (colder) side air intake.
_________________________
Dirk

1993 Morgan +4 (Connaught Green)
2009 Mini Cooper D
2008 BMW 320d
1994 Ford Motorhome

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#532243 - 09/09/18 05:15 PM Re: Air Filter Box [Re: DirkM]
Craig Jezz Offline

Talk Morgan Regular

Registered: 27/03/17
Posts: 948
Loc: Oxon
Originally Posted By DirkM
Originally Posted By milligoon
Maybe worth fabricating a tube to take air from louvres in side of bonnet, you may get further temperature reduction?


That's what I am thinking about for my 1993 +4. But I can't deside wether to install a K&N filter or to go for the (colder) side air intake.


On my 4/4 Sigma engine I have the ITG air intake, it’s much better than the standard air box with the K&N filter




_________________________
Craig Jezz

Morgan 4/4 Sports Sand (Williams & Wolf Tuned)

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#532260 - 09/09/18 06:48 PM Re: Air Filter Box [Re: Craig Jezz]
DirkM Offline
Learner Plates Off!

Registered: 31/07/16
Posts: 321
Loc: Begijnendijk, Belgium
Originally Posted By Craig Jezzard69
Originally Posted By DirkM
Originally Posted By milligoon
Maybe worth fabricating a tube to take air from louvres in side of bonnet, you may get further temperature reduction?


That's what I am thinking about for my 1993 +4. But I can't deside wether to install a K&N filter or to go for the (colder) side air intake.


On my 4/4 Sigma engine I have the ITG air intake, it’s much better than the standard air box with the K&N filter



Thank you for the pictures Craig.
I don't have that clearance above my (Rover T16)engine. So I think I'll have to go for the side or top air intake. The ITG looks a good and solid solution. What's the average BHP gain?
I 've already fitted the Librands 4 into 1 manifold.


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#532266 - 09/09/18 07:11 PM Re: Air Filter Box [Re: DirkM]
Craig Jezz Offline

Talk Morgan Regular

Registered: 27/03/17
Posts: 948
Loc: Oxon
Originally Posted By DirkM
Originally Posted By Craig Jezzard69
Originally Posted By DirkM
Originally Posted By milligoon
Maybe worth fabricating a tube to take air from louvres in side of bonnet, you may get further temperature reduction?


That's what I am thinking about for my 1993 +4. But I can't deside wether to install a K&N filter or to go for the (colder) side air intake.


On my 4/4 Sigma engine I have the ITG air intake, it’s much better than the standard air box with the K&N filter



Thank you for the pictures Craig.
But I don't have that clearance above my (Rover T16)engine. So I think I'll have to go for the side or top air intake. The ITG looks a good and solid solution. What's the average BHP gain?



I’m not sure of exact figures, but altogether with the ITG air induction kit, remap and Librands exhaust it must of added approx 30bhp...
_________________________
Craig Jezz

Morgan 4/4 Sports Sand (Williams & Wolf Tuned)

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#532268 - 09/09/18 07:44 PM Re: Air Filter Box [Re: milligoon]
Stonehagen Offline
New to Talk Morgan

Registered: 26/04/15
Posts: 14
Loc: Germany
This is the reason, why I measured the temperature there as well. It is more or less as high as in the area below the filter. The air is exiting the louvres. This can be seen in the very helpful work of this Morganeer from Texas. There is low pressure. But the air goes into the last 4-5 louvres before the window. There is high pressure!

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#532278 - 09/09/18 09:02 PM Re: Air Filter Box [Re: Stonehagen]
BertR Offline

Talk Morgan Regular

Registered: 13/12/09
Posts: 623
Loc: Aerdenhout, The Netherlands
Stonehagen, a simply mod could be John Taylor’s bonnet extensions, they create an opening at the rear of the bonnet, with more airflow. I have them and I think it helps airflow to the itg filter I have on my 3.0 L roadster.
Check http://www.morganhoods.com/id69.html

Cheers,
Bert
_________________________
2009 Roadster, Lancia midnight blue, cinnamon upholstery.

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