Notices
Drivetrain Gearbox, Diffs & Driveshafts etc

Fitted FMIC - Do I blank off the scoop or not?

Thread Tools
 
Search this Thread
 
Old 27 July 2003, 10:28 PM
  #1  
RaymondH
Scooby Regular
Thread Starter
 
RaymondH's Avatar
 
Join Date: Jun 1999
Posts: 814
Likes: 0
Received 0 Likes on 0 Posts
Post

I don't fancy all the water, flies etc having unrestricted access to my engine bay now that I've fitted a FMIC and am tempted to block off the scoop. My worry is the build up of air pressure in the scoop which has nowhere to go while on the move - will it be a problem? Some people also mention the change made to the airflow through the radiator and engine bay due to blocking off the scoop (I have refitted my undertray) but if the car didn't have the intercooler where it is then it wouldn't have the scoop anyway. I don't really fancy fitting a Sport bonnet and I definitely will not reverse the scoop... Anybody??
Old 27 July 2003, 10:30 PM
  #2  
RON
Scooby Regular
 
RON's Avatar
 
Join Date: Sep 2000
Location: Deepest Darkest Dorset!!
Posts: 10,011
Likes: 0
Received 1 Like on 1 Post
Post

Just a thought, what about making some sort of scoop under the scoop to direct all the air onto the turbo??
Probably daft, but hey, so am I!!
Old 27 July 2003, 10:46 PM
  #3  
Vinesh
Scooby Regular
 
Vinesh's Avatar
 
Join Date: Jul 2001
Posts: 1,795
Likes: 0
Received 0 Likes on 0 Posts
Post

Have an Oil Cooler under the scoop?
Old 27 July 2003, 10:49 PM
  #4  
tweenierob
Scooby Regular
 
tweenierob's Avatar
 
Join Date: Mar 2002
Location: Fcon Power Writer
Posts: 4,338
Likes: 0
Received 0 Likes on 0 Posts
Post

Pretty good suggestion Ron, one of the reasons not to remove the scoop anyway!! think of all that heat with nowhere to go..
Rob
Old 27 July 2003, 11:03 PM
  #5  
john banks
Scooby Regular
 
john banks's Avatar
 
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like on 1 Post
Post

I blocked all of it off apart from an area where the original undertray has slats to let air over the turbo. I have a 5" wide gap there. Tested at speed it is fine
Old 27 July 2003, 11:58 PM
  #6  
Richard Curtis
Scooby Regular
 
Richard Curtis's Avatar
 
Join Date: May 2001
Posts: 449
Likes: 0
Received 0 Likes on 0 Posts
Post

Rather than making something to duct the air on the turbo have a look at the scoop from a old legacy turbo.

Its smaller and has the ducting to put the air just in the right place.

I doubt it would be a direct replacement without a bit of fiddling but you never know your luck.

Rich

Old 28 July 2003, 07:36 AM
  #7  
Bob Rawle
Ecu Specialist
 
Bob Rawle's Avatar
 
Join Date: Mar 1999
Location: Swindon
Posts: 3,938
Likes: 0
Received 1 Like on 1 Post
Post

Testing at Bruntingthorpe proved that charge air temperatures increase significantly if the scoop is either removed or blocked off, leave in place for maximum cooling effect on charge temperatures.

Bob
Old 28 July 2003, 09:17 AM
  #8  
rapac
Scooby Regular
 
rapac's Avatar
 
Join Date: May 2003
Posts: 112
Likes: 0
Received 0 Likes on 0 Posts
Post

It will probably be best to rotate it at 180 degrees if u dont mind everyone knowing that u have a fmi?
U ll have less drag (check how bonnet lifts under high speed)and get rid of lots of engine bay heat.

Cheers
Old 28 July 2003, 07:47 PM
  #9  
nom
Scooby Senior
 
nom's Avatar
 
Join Date: Oct 2001
Posts: 2,602
Likes: 0
Received 0 Likes on 0 Posts
Post

I mucked about with this a bit.
I didn't flip the scoop round, but blocking it off raised the temps, and additionally removing the ducting thingy (the bit with the squishy rubber thing to seal onto the ex-TMIC) seemed to reduce temps a little more. That's in general, rather than around the turbo, though (all oil temps).
There may be an Evo-style bonnet for the scoob around at some point in the future, which could be interesting
Old 28 July 2003, 07:53 PM
  #10  
RaymondH
Scooby Regular
Thread Starter
 
RaymondH's Avatar
 
Join Date: Jun 1999
Posts: 814
Likes: 0
Received 0 Likes on 0 Posts
Post

Thanks all. Looks like a nice hefty piece of mesh is the order of the day It's just as well that I asked this because I have a blank cut out ready to fit...
Old 29 July 2003, 12:04 AM
  #11  
Weenie
Scooby Regular
 
Weenie's Avatar
 
Join Date: Nov 2002
Posts: 532
Likes: 0
Received 0 Likes on 0 Posts
Post

Does anyone know where you can buy the reverse scoops?? As the standard one doesnt fit if you just try and reverse it does it??
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
61
11 January 2021 03:08 PM
JonMc
Subaru Parts
22
06 February 2016 09:50 PM
Gooch89
General Technical
11
30 December 2015 03:31 PM
Reshard1977
Subaru Parts
9
22 September 2015 11:48 PM
ossett2k2
General Technical
6
14 September 2015 08:07 PM



Quick Reply: Fitted FMIC - Do I blank off the scoop or not?



All times are GMT +1. The time now is 01:42 AM.