Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

making functional a non-functional hood scoop


  • Please log in to reply
7 replies to this topic

#1 crazyeric

crazyeric

    USMB Regular

  • Members
  • PipPipPip
  • 48 posts
  • Portsmouth, RI

Posted 14 October 2003 - 05:28 PM

my 99 OBW has the big ridiculous non-functional hood scoop. I was looking at the hood, and theres a plasic plate with screws that could be removed, opening up the scoop. Then i got to thinking how i could either modify my airbox or find a different airbox thats more or less open at the top allowing air to be forced into the throttle body. Has anyone tried this out? I know id have to relocate my MAF sensor. and someone on another board told me that the 99 model MAF is kind of flimsy. I think i would gain a few horses by doing this mod, also it would allow cooler air to be forced in, rather than warm engine-compartment air just being sucked in by the TB. Has anyone tried this or know how i might be able to go about it or am i just wasting my time? Thanks alot, Eric.

#2 gbhrps

gbhrps

    User Awaiting Email Confirmation

  • Members
  • 782 posts
  • canada

Posted 14 October 2003 - 06:13 PM

I don't want to rain on your parade, but I recall my 97 OBW drew its air from inside of the passenger fender well, up near the grill, not from the hot engine compartment. As well, I recall asking a Subaru technician about why the air box plumbing went all different directions and even had two sections of 2 inch diameter plastic pipe that extended about a foot and just stopped. He replied that they were designed to deliver or eliminate (duh, I can't remember) air pulses to the throttle body, or something like that. You may be creating a problem by eliminating them. Do some research first! And what about all of the water that you'll suck into that opening?

#3 North Ursalia

North Ursalia

    aka Captain Morgan

  • Members
  • 253 posts
  • Margaritaville

Posted 14 October 2003 - 07:49 PM

The hood scoop is not and never was intended to be an air intake- the Subaru is not a Chevy or a Pontiac ;). It was meant to ventilate a top mount intercooler- granted, there is no turbo nor TMIC on your car, but it still can function to ventilate your engine bay, just remove or space the blocking plates away from the hood:

Posted Image

The heat forced out of the vents was enough to melt the shell of ice on my RS :-).

#4 crazyeric

crazyeric

    USMB Regular

  • Members
  • PipPipPip
  • 48 posts
  • Portsmouth, RI

Posted 14 October 2003 - 08:18 PM

oh well, it was worth a shot!

#5 Legacy777

Legacy777

    Moderator

  • Moderator
  • 12,555 posts
  • Houston, Tx

Posted 15 October 2003 - 08:27 AM

Other thing you could try is turning your hood scoop around. with the vents open underneith this would help draw hot air out of the engine bay.

I think on some models this can be done relatively easy. Others the hood scoop only goes in one way.

#6 Dave K

Dave K

    New User

  • Members
  • PipPip
  • 10 posts
  • Upstate NY

Posted 15 October 2003 - 12:44 PM

I THINK those tubes serve the same purpose on the Soobs as they do on my Z28... and that's as an intake silencer. It keeps the whistling noise down by using a tuned column of air. Took mine off of my Z28 when I installed an electric water pump, intake is a bit louder but no other effects... and I have a laptop plugged into that car all the time so I'd have seen any significant changes to MAF or MAP.

#7 Setright

Setright

    Elite Master of the Subaru

  • Members
  • 3,176 posts
  • Denmark

Posted 15 October 2003 - 03:52 PM

Turning the scoop may not change it's function. There is a high pressure region ahead of the windscreen base, because air is "bunching up" on it's way over the car.

The scoop would probably still force air into the engine bay.

#8 North Ursalia

North Ursalia

    aka Captain Morgan

  • Members
  • 253 posts
  • Margaritaville

Posted 15 October 2003 - 06:02 PM

It won't fit backwards without custom work either ;).




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users