True forced induction hood scoop
#31
Originally Posted by Hoooper
Quick FYI in case this is why you are doing it: Ram air is a myth pretty much funded by dodge. There are no realizable gains with a reasonably sized ram air scoop until you reach ~200 MPH
#32
MJ>XJ
Joined: Mar 2009
Posts: 17,836
Likes: 5
From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
has the same affect as a CAI... delivers colder air... thats about it... reason being is your engine is sucking in air already right? well how much more air would you have to push in to actually supersede that amount and THEN make a difference... however on a crotch rocket or Vtwin it DOES make a difference... about 8-10hp... there little motors dont pull much air...
#34
CF Veteran
Joined: Nov 2010
Posts: 1,140
Likes: 1
From: cape cod ma.
Year: 1998
Model: Cherokee
Engine: 4.0 i6
ok first off i run a true nostalgia a/gas car and have a hilborn style scoop on it...running 10.30s at 125mph...far from 200.... i took my scoop off just to see once i lost 3 tenths and 5 mph.... also a ram air scoop lowers intake temps therefore increasing the density of the air in the intake.. thats a fact. do they work like a blower ? no.. but far from a myth..
#35
CF Veteran
Joined: Nov 2010
Posts: 1,140
Likes: 1
From: cape cod ma.
Year: 1998
Model: Cherokee
Engine: 4.0 i6
that being said i would run a cowl hood...lets heat out doesn't inhale water and crap going forward...at speed pulls cooler air off the high pressure area at the base of the windshield...
#36
MJ>XJ
Joined: Mar 2009
Posts: 17,836
Likes: 5
From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
from what i read its at 100mph or more that it matters... and its possible that 3 tenths you lost was because of loss of cold air... not RAM air... which is what were talking about... not cowl induction air...
#38
Senior Member
Joined: Oct 2010
Posts: 999
Likes: 3
From: West By God Virginia
Year: 1997
Model: Cherokee
Engine: 99 4.0
the air is gonna get warm in the 6 inches it has to travel? no chance...Im doing it off the basis of a true CAI, so as long as I get those effects im good. if I get a bonus when I open her up on the interstate then even better
#40
It kinda looks like the hood scoops that come on the mustang gt's http://www.coledecals.com/ebay/mustang_gt_hood2.jpg
#41
Yeah, like I said it depends on the size on the scoop. Im talking about scoops similar to what you will see on a typical car. If you put a 2' diameter cone out there its going to compress enough air to lower the speed at which it becomes effective
PS: did I say dodge? I meant pontiac
PS: did I say dodge? I meant pontiac
#42
Thread Starter
Newbie
Joined: Jan 2011
Posts: 14
Likes: 0
From: Norfolk va
Year: 1997
Model: Cherokee
Engine: 4.0
Originally Posted by Hoooper
Quick FYI in case this is why you are doing it: Ram air is a myth pretty much funded by dodge. There are no realizable gains with a reasonably sized ram air scoop until you reach ~200 MPH
#43
CF Veteran
Joined: Aug 2010
Posts: 2,112
Likes: 4
From: Wantage, NJ
Year: 1995
Model: Cherokee
Engine: 4.0 I6
Ok, well than stick a thermometer in ther stock intake near the TB and than the "aftermarket" intake. Youll be disappointed.
#44
cowl hood, true CAI, etc. will be the same, and not subject your intake to rain and if you get a small wave from a mud puddle or something it wont run straight into your intake. I was just giving some info that doing it for the "ram air" effect is the wrong reason to do it.
#45
Thread Starter
Newbie
Joined: Jan 2011
Posts: 14
Likes: 0
From: Norfolk va
Year: 1997
Model: Cherokee
Engine: 4.0
Originally Posted by Hoooper
cowl hood, true CAI, etc. will be the same, and not subject your intake to rain and if you get a small wave from a mud puddle or something it wont run straight into your intake. I was just giving some info that doing it for the "ram air" effect is the wrong reason to do it.