SLP CAI questions
08-21-2012, 02:26 PM
#1
Staging Lane
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SLP CAI questions Hi I recently installed a CAI I got used for 40$ on my 99 SS.
I was wondering, wouldnt it be better if I had air coming from both my hood and the cutout on the bottom of the lid, instead of blocking off the air from the hood?
And also I noticed my temp gauge now goes up to the half way mark and before the install it was like a hair line away from it, could this be from the cai?
I was wondering, wouldnt it be better if I had air coming from both my hood and the cutout on the bottom of the lid, instead of blocking off the air from the hood?
And also I noticed my temp gauge now goes up to the half way mark and before the install it was like a hair line away from it, could this be from the cai?
08-21-2012, 02:54 PM
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Plenty of bad advice here.
The SLP CAI does shroud the radiator, as most of this sort
do. If you have an external trans cooler, it's near totally
blocking half or more of the radiator core.
The stainless is a really bad heat absorber (black oxide,
though thin enough for you not to notice). This will cook
your IAT. Yeah, once you're rolling at 30+ the air will be
cool. But it takes more than 10 seconds for your IAT to
swing around, and that means you're going to pull timing
off the line and all the way down track. If you care about
that kind of thing.
A thermostat won't do dick for your coolant temperature.
Your fans can't do any more than they do now, aside from
not sticking with the stupid stock settings, and will have
more airflow resistance to overcome.
Now the piece is nice and sturdy, and makes a swell base
for alternative schemes if you keep it away from the heat-
throw of the radiator. I'm using the upper 2" of mine to
this day. The rest is in my stainless scrap bin waiting for
a better purpose.
But would I pay retail and use it as-is? Hell no. Been there.
Took the logs.
The SLP CAI does shroud the radiator, as most of this sort
do. If you have an external trans cooler, it's near totally
blocking half or more of the radiator core.
The stainless is a really bad heat absorber (black oxide,
though thin enough for you not to notice). This will cook
your IAT. Yeah, once you're rolling at 30+ the air will be
cool. But it takes more than 10 seconds for your IAT to
swing around, and that means you're going to pull timing
off the line and all the way down track. If you care about
that kind of thing.
A thermostat won't do dick for your coolant temperature.
Your fans can't do any more than they do now, aside from
not sticking with the stupid stock settings, and will have
more airflow resistance to overcome.
Now the piece is nice and sturdy, and makes a swell base
for alternative schemes if you keep it away from the heat-
throw of the radiator. I'm using the upper 2" of mine to
this day. The rest is in my stainless scrap bin waiting for
a better purpose.
But would I pay retail and use it as-is? Hell no. Been there.
Took the logs.
08-21-2012, 03:06 PM
#7
Staging Lane
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Jimmy I saw it for 40$ and thought omit was a good deal what I was wondering was if the temp diff would affect my engine in a negative way, btw what set up do you have (CAI)
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08-21-2012, 04:13 PM
#8
Staging Lane
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Found this thread helped me decide wether to seal or not
http://m.modernhemi.com/forums/showthread.php?t=728196
http://m.modernhemi.com/forums/showthread.php?t=728196
08-22-2012, 10:35 AM
#9
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If you really believe you have more pressure in front of the
radiator below the panel than above, sealing would increase
the positive pressure. But you shouldn't take the premise on
faith. If you calculate the drag force equating to even one
PSI at the radiator face, that's crazy HP and we're not losing
that much. The short-duct CAIs are -not- seeing any ramming.
Super-sucker types, maybe, if they are all the way out to the
chin and taking advantage of the local air-crush.
If you think the air temperature is better below than above,
ditto. This, you could check for the price of two wires and
the IAT sensor, and an ohmmeter (DMM).
High IAT pulls timing via the IAT spark adder table. It's harsh
and is likely seeing a bogus IAT as well, compounding the
problem (like if your car starts hard when hot).
My setup is the SLP CAI, cut down to about a 2" stub. Piece
of large black plastic plant-pot pop-riveted to the backside,
and laid above the divider panel with spacers to keep it down
from the sheet metal in front of the core support (lower airbox).
So the air is ducted from the nose-pocket. Which is fed via the
"nostrils" where I relieved the styrofoam for a nice clear air-path.
radiator below the panel than above, sealing would increase
the positive pressure. But you shouldn't take the premise on
faith. If you calculate the drag force equating to even one
PSI at the radiator face, that's crazy HP and we're not losing
that much. The short-duct CAIs are -not- seeing any ramming.
Super-sucker types, maybe, if they are all the way out to the
chin and taking advantage of the local air-crush.
If you think the air temperature is better below than above,
ditto. This, you could check for the price of two wires and
the IAT sensor, and an ohmmeter (DMM).
High IAT pulls timing via the IAT spark adder table. It's harsh
and is likely seeing a bogus IAT as well, compounding the
problem (like if your car starts hard when hot).
My setup is the SLP CAI, cut down to about a 2" stub. Piece
of large black plastic plant-pot pop-riveted to the backside,
and laid above the divider panel with spacers to keep it down
from the sheet metal in front of the core support (lower airbox).
So the air is ducted from the nose-pocket. Which is fed via the
"nostrils" where I relieved the styrofoam for a nice clear air-path.
08-22-2012, 05:41 PM
#11
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My belief is that adding the piece will raise your air temps
except when you are rolling at higher speeds. And you will
see timing pulled if you've been sitting parked or in traffic.
This, regardless of what you do to the front air slot.
If you're bent on using the pece as-is, you might want to
get some thin sticky-backed reflective insulation and apply
it to the interior and exterior of the CAI duct. Cut down on
the absorbtion (exterior) and transfer to air (interior) of the
radiator heat.
except when you are rolling at higher speeds. And you will
see timing pulled if you've been sitting parked or in traffic.
This, regardless of what you do to the front air slot.
If you're bent on using the pece as-is, you might want to
get some thin sticky-backed reflective insulation and apply
it to the interior and exterior of the CAI duct. Cut down on
the absorbtion (exterior) and transfer to air (interior) of the
radiator heat.
08-22-2012, 05:54 PM
#12
I sealed my slpra with black duct tape. Sou ds ghetto i know but i didnt like the gaps that were left after the install. I have a non ram air hood but was now thinking of sealing the rest of the lid so it only gets air from under the car..
On that note ive seen no increase in temps, but its installed on my v6 car.
On that note i need a whisper lid for my v6...
On that note ive seen no increase in temps, but its installed on my v6 car.
On that note i need a whisper lid for my v6...
08-23-2012, 03:46 PM
#13
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Good point on the reflective insulation jimmy, although my concern was higher temp affecting life of my motor
Baalic where did you put the duct tape? To seal what part?
I have a whisper lid but I use it lol
Baalic where did you put the duct tape? To seal what part?
I have a whisper lid but I use it lol
08-23-2012, 04:16 PM
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Good point on the reflective insulation jimmy, although my concern was higher temp affecting life of my motor
Baalic where did you put the duct tape? To seal what part?
I have a whisper lid but I use it lol
Baalic where did you put the duct tape? To seal what part?
I have a whisper lid but I use it lol
08-23-2012, 07:41 PM
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I sold my old SLP Cold Air to ^baalic here and now I have a Fast Toys Ram Air in it's place, I'd never pay retail for either of these products because they're basically metal ducting from Home Depot 
but I got both of these for the same price as you got yours for so that's why I went with it, I've never had an issue with either of these, I've never had a temperature problem either, just install it and have fun!
but I got both of these for the same price as you got yours for so that's why I went with it, I've never had an issue with either of these, I've never had a temperature problem either, just install it and have fun! 