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Air Filter Box #532216
09/09/18 12:37 PM
09/09/18 12:37 PM
5 Images
Joined: Apr 2015
Posts: 14
Germany
S
Stonehagen Offline OP
New to Talk Morgan
Air Filter Box

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.
27 Comments
Re: Air Filter Box [Re: Stonehagen] #532219
09/09/18 01:17 PM
09/09/18 01:17 PM
Joined: Apr 2014
Posts: 3,075
Dorset, UK
milligoon Offline
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milligoon  Offline
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Joined: Apr 2014
Posts: 3,075
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
Re: Air Filter Box [Re: Stonehagen] #532224
09/09/18 02:07 PM
09/09/18 02:07 PM
Joined: Apr 2015
Posts: 14
Germany
S
Stonehagen Offline OP
New to Talk Morgan
Stonehagen  Offline OP
New to Talk Morgan
S

Joined: Apr 2015
Posts: 14
Germany
That is better, of course, but very difficult with the 3.7, since the area to the radiator is packed!

Re: Air Filter Box [Re: Stonehagen] #532231
09/09/18 03:09 PM
09/09/18 03:09 PM
Joined: Apr 2014
Posts: 3,075
Dorset, UK
milligoon Offline
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milligoon  Offline
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Joined: Apr 2014
Posts: 3,075
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
Re: Air Filter Box [Re: milligoon] #532236
09/09/18 03:36 PM
09/09/18 03:36 PM
Joined: Jul 2016
Posts: 321
Begijnendijk, Belgium
DirkM Offline
Learner Plates Off!
DirkM  Offline
Learner Plates Off!

Joined: Jul 2016
Posts: 321
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
Re: Air Filter Box [Re: DirkM] #532243
09/09/18 04:15 PM
09/09/18 04:15 PM
Joined: Mar 2017
Posts: 964
Oxon
Craig Jezz Online content
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Craig Jezz  Online Content
Talk Morgan Regular

Joined: Mar 2017
Posts: 964
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)
Re: Air Filter Box [Re: Craig Jezz] #532260
09/09/18 05:48 PM
09/09/18 05:48 PM
Joined: Jul 2016
Posts: 321
Begijnendijk, Belgium
DirkM Offline
Learner Plates Off!
DirkM  Offline
Learner Plates Off!

Joined: Jul 2016
Posts: 321
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.


Re: Air Filter Box [Re: DirkM] #532266
09/09/18 06:11 PM
09/09/18 06:11 PM
Joined: Mar 2017
Posts: 964
Oxon
Craig Jezz Online content
Talk Morgan Regular
Craig Jezz  Online Content
Talk Morgan Regular

Joined: Mar 2017
Posts: 964
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)
Re: Air Filter Box [Re: milligoon] #532268
09/09/18 06:44 PM
09/09/18 06:44 PM
Joined: Apr 2015
Posts: 14
Germany
S
Stonehagen Offline OP
New to Talk Morgan
Stonehagen  Offline OP
New to Talk Morgan
S

Joined: Apr 2015
Posts: 14
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!

Re: Air Filter Box [Re: Stonehagen] #532278
09/09/18 08:02 PM
09/09/18 08:02 PM
Joined: Dec 2009
Posts: 645
Aerdenhout, The Netherlands
BertR Offline
Talk Morgan Regular
BertR  Offline
Talk Morgan Regular

Joined: Dec 2009
Posts: 645
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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