SLP cold air box ????
Team Owner
Joined: Sep 2001
Posts: 62,097
Likes: 1,724
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: SLP cold air box ???? (AshleyRL-87Conv)
Nobody has found a real performance gain from it, not over an open lid and K&N. But i'm gonna buy one anyway. Seems like it should help, even if nobody has found anything from it.
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: SLP cold air box ???? (vader86)
....YAY....
If you mean the one that sucks ait form the bottom with a scoop, they yea. I have had it for a while and at high speeds (60+) it DOES help... BUT.....It makes your car rrun (a tleast my car) about 10-15F hotter throughout..
So you better add a manual switch fo rthe fan(s). I have a booster fan in front of the radiator too. In heat and humidity the car runs about 200F on teh highway. I took the scoop off and put the open lid filter on, and now I run about 190F on the highway. I can feel the difference though when I do a 60-120Mph run.. the car seems to accelerate a bit slower...
Jus tmy 69cents
:D
If you mean the one that sucks ait form the bottom with a scoop, they yea. I have had it for a while and at high speeds (60+) it DOES help... BUT.....It makes your car rrun (a tleast my car) about 10-15F hotter throughout..
So you better add a manual switch fo rthe fan(s). I have a booster fan in front of the radiator too. In heat and humidity the car runs about 200F on teh highway. I took the scoop off and put the open lid filter on, and now I run about 190F on the highway. I can feel the difference though when I do a 60-120Mph run.. the car seems to accelerate a bit slower...
Jus tmy 69cents
:D
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: SLP cold air box ???? (AshleyRL-87Conv)
It is a quality piece with good instructions. I would say expect about a consistent 5hp gain over K&N with open lid (i.e. 0.5mph at the traps). As mentioned, you'll get that gain in the last 1/8mi or above sasy 60mph.
If you don't have a K&N yet you'll save about $40 since one comes with the kit.
My engine runs about 175deg highway on a 90+day and a 160 deg stat and fan sw. I didn't have the opportunity to check it out in hot weather between the time I installed the 160 deg stat/sw and the time the SLP went in. However, in cooler weather, 70s or less, she runs at 155deg F on the highway.
Before you install the unit, enlarge the "scoop" opening another inch or so; you'll see what I mean.
If you don't have a K&N yet you'll save about $40 since one comes with the kit.
My engine runs about 175deg highway on a 90+day and a 160 deg stat and fan sw. I didn't have the opportunity to check it out in hot weather between the time I installed the 160 deg stat/sw and the time the SLP went in. However, in cooler weather, 70s or less, she runs at 155deg F on the highway.
Before you install the unit, enlarge the "scoop" opening another inch or so; you'll see what I mean.
