Home 
Home Search search Menu menu Not logged in - Login | Register
> Jensen Healey & Jensen GT Tech > Carburetors > AIR BOX Jensen Healey

 Moderated by: Greg Fletcher
New Topic Reply Printer Friendly
AIR BOX Jensen Healey  Rating:  Rating
AuthorPost
 Posted: 12-29-2010 02:18 pm
  PM Quote Reply
1st Post
Anton
Member
 

Joined: 02-18-2010
Location:  
Posts: 18
Status: 
Offline
AIR FILTER BOX/CAN Jensen Healey (nr: 92373)

Is there anyone who can inform me about the right  COLOR OF THE FACTORY AIR BOX ASSY for the Jensen Healey MKI?  The exact paint code, detailed pictures, description of the treatment or any other possible sample would be welcome.  

Email:  anton_raaymakers@xs4all.nl


Anton

 

Last edited on 01-26-2011 04:59 pm by Anton

Back To Top PM Quote Reply  

 Posted: 12-29-2010 08:59 pm
  PM Quote Reply
2nd Post
Art DeKneef
Member
 

Joined: 03-12-2005
Location: Mesa, Arizona USA
Posts: 298
Status: 
Offline
I was at Delta Motorsports yesterday and Jim is looking at having this reproduced. He had the pieces setting on the counter waiting to go to the fabricator. No idea on availablity or cost. Just a FYI in case you don't find anything you can give Jim a call and see what he has.

I have some but would have to find them in all the boxes I have. Also, they are different if I remember correctly. One came form a JH MK2, the other from a Jensen GT.

Art

Back To Top PM Quote Reply

 Posted: 01-05-2011 09:55 pm
  PM Quote Reply
3rd Post
Greg Fletcher
Administrator


Joined: 03-11-2005
Location: Lake Nacimiento, California USA
Posts: 421
Status: 
Offline
I saw Richard Reyman at West Coast Cylinder Heads not long ago and he had an interesting story about that goofy looking factory air box which may shock many owners. He dyno'd a performance 907 engine he had built and tried it with and then without the factory air filter assembly. The factory air box ADDED several horsepower to the run (nothing else was different). He tried it multiple times with the same results. Has to do with the way the air is directed into the carbs (Dellortos). The factory airbox assembly is bit more sophisticated that it looks. So not only does the factory air box quiet down the engine roar, it also helps performance. When you run without filters (which is a very bad idea in itself) or bolt on K&N air filters, you are essentially removing a small performance advantage over the stock system.

Back To Top PM Quote Reply  

 Posted: 01-05-2011 10:05 pm
  PM Quote Reply
4th Post
JodyKerr
Member


Joined: 05-15-2006
Location: Tempe, Arizona USA
Posts: 217
Status: 
Offline
Wow, that's totally counter the commonly held beliefs!

Does he have any data for the Stromberg setup?

Back To Top PM Quote Reply

 Posted: 01-05-2011 10:17 pm
  PM Quote Reply
5th Post
Greg Fletcher
Administrator


Joined: 03-11-2005
Location: Lake Nacimiento, California USA
Posts: 421
Status: 
Offline
No, I don't see Richard putting Strombergs on anything.

Back To Top PM Quote Reply  

 Posted: 01-06-2011 08:24 pm
  PM Quote Reply
6th Post
James Sohl
Member
 

Joined: 04-24-2006
Location: Chandler, Arizona USA
Posts: 18
Status: 
Offline
The slight increase is likely the result of the airbox acting as a plenum chamber.  I am not aware of the air flow capacity of the stock air filter under standard conditions, however I doubt it is very much different than individual filters, despite the obvious differences in appearance.  I have read that the Lotus Twin Cam engine was designed for use with a plenum chamber and that, at least with Strombergs, no performance increase should be expected by a change to individual filters.  I will try to find that statement.  Many modern street engines and most modern un-boosted race engines are fitted with plenum chambers.  A plenum can be fitted either before or after the throttle plates, although usually before.  I'm not aware of a use of both locations on the same engine, but it would certainly be possible.

Back To Top PM Quote Reply

 Posted: 01-06-2011 11:25 pm
  PM Quote Reply
7th Post
John Young
Member


Joined: 03-16-2005
Location: Ohio USA
Posts: 17
Status: 
Offline
Is it possible that with stock filter box , it is drawing in more cold air ,thus the increase that he was recording. The farther the intake of air is from the heat source the colder the air.

Last edited on 01-06-2011 11:28 pm by John Young

Back To Top PM Quote Reply  

 Posted: 01-06-2011 11:36 pm
  PM Quote Reply
8th Post
Greg Fletcher
Administrator


Joined: 03-11-2005
Location: Lake Nacimiento, California USA
Posts: 421
Status: 
Offline
Cold air is always optimal, but I don't think it make any difference in this case since the engine was out of the car. As James mentioned, the air box is essentially an air distribution chamber that directs the intake into the stubby air trumpets on the Dellortos. The space inside seems small, but's certainly doing something. It's worth noting that the 907 was designed to use Dellortos. I would presume a lot of development work went toward that while the addition of Strombergs were more of a "Plan B" to simply get the JH into the American market and generate sales.

Back To Top PM Quote Reply

 Posted: 01-26-2011 05:01 pm
  PM Quote Reply
9th Post
Anton
Member
 

Joined: 02-18-2010
Location:  
Posts: 18
Status: 
Offline
Hi,

I contacted Delta, but they are not working on any remanufacturing of the Airbox !!

 

Back To Top PM Quote Reply  

 Posted: 01-26-2011 05:22 pm
  PM Quote Reply
10th Post
JodyKerr
Member


Joined: 05-15-2006
Location: Tempe, Arizona USA
Posts: 217
Status: 
Offline
I'm not suprised. There's very little call for the air filter/cold air box on the Jensen Healey as most people replace it with K&N Filters.

Your best bet for finding one will be on ebay until I get my new project online.

I've attached a photo I recently recieved from a new JH owner that has a very original car.

Jody

Attachment: JHAirBox.jpg (Downloaded 87 times)

Back To Top PM Quote Reply

 Posted: 01-26-2011 08:04 pm
  PM Quote Reply
11th Post
subwoofer
Member
 

Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 582
Status: 
Online
I've got an airbox I won't be using anymore as I've tossed out the Strombergs and hope to never see them again. I haven't been able to get myself to throw it away, so you can have it if you pay the postage.

I don't think it is cracked or otherwise destroyed, but it could probably do with a cleaning.

--
Joachim

Back To Top PM Quote Reply  

 Posted: 01-27-2011 04:37 pm
  PM Quote Reply
12th Post
subwoofer
Member
 

Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 582
Status: 
Online
Anton: I see you sent me a PM, but the browser I normally use can't open the PM - and I can't seem to remember the password so I could use Firefox. Could you email me at jpihl@broadpark.no?

--
Joachim

Back To Top PM Quote Reply

 Posted: 01-28-2011 06:46 am
  PM Quote Reply
13th Post
Anton
Member
 

Joined: 02-18-2010
Location:  
Posts: 18
Status: 
Offline
Hi,

I dropped you an Email.

Regards, Anton

Back To Top PM Quote Reply  

Current time is 09:15 am  
> Jensen Healey & Jensen GT Tech > Carburetors > AIR BOX Jensen Healey Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems