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Old 04-09-2012   #1
cvette98pacecar
 
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Default SLP cold air intake.

Has there been any studies on the SLP cold air intake? Is it worth $300.00
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Old 04-09-2012   #2
Blue Flame Restorations
 
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Default Re: SLP cold air intake.

I've got one I'll sell you after I get my stainless air box.
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Old 04-09-2012   #3
cvette98pacecar
 
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Default Re: SLP cold air intake.

Quote:
Originally Posted by Blue Flame Restorations View Post
I've got one I'll sell you after I get my stainless air box.
I have one of the stainless coming for the Purple car, this is for the Ruby car.
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Old 04-09-2012   #4
Paul Workman
 
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Default Re: SLP cold air intake.

As I recall, the total surface area of the three cone filters was a little more than the stock or even the flat K&N. Theoretically, that would be advantageous, I suppose. But, sorry...No data for comparison.

P.
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Old 04-09-2012   #5
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Default Re: SLP cold air intake.

Locobob did a comparison, looked like 1 to 3 hp gain with the claw if I remember correctly
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Old 04-10-2012   #6
Locobob
 
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Default Re: SLP cold air intake.

Here is the old post from the CF. Results for peak HP were within margin of error but notice the average HP and Torque numbers show a small gain.


Today myself and forum member/dyno owner TJ Wong set out to find the truth regarding C4 air intakes. We dyno tested 3 different air intakes on my Lingenfelter 368cid LT5. Tested today were: stock with paper element, stock with K&N element and a cut lid, and finally SLP's "claw" tri-cone filter design. All dyno pulls were made with starting coolant temps at 195 degrees F. Here are the results.

Stock with paper, two identical pulls: 477rwhp. Avg. peak HP 477

Stock with K&N and cut lid, three pulls: 471, 475, 480rwhp. Avg. peak HP 475.3

SLP tri-cone "claw", three pulls: 477, 478, 481rwhp. Avg. peak HP 478.7

It would appear that the naysayers are mostly correct about C4 air intakes, not much to be gained here. Both Tom and I were rather suprised with the results. We had expected to see some small but visible gains with the cut-lid and SLP, instead we got a bunch of tests with peak numbers being basically the same or well within normal dyno pull to pull variation. The SLP unit does seem to have a small advantage over the others but suprisingly it's in mid range power not peak (see dyno graph average power #'s).


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Last edited by Locobob; 04-10-2012 at 03:30 AM.
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Old 03-29-2016   #7
Johnny5
 
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Default Re: SLP cold air intake.

Figures. The stock intake is already a cold air intake. Waste of $$$$ for SLP although it looks cool
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Old 03-29-2016   #8
KFoster
 
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Default Re: SLP cold air intake.

I have the SLP. Came on the car. I like it, but no flow numbers on it or comparison to anything else. I prefer conical filters to flat myself, but usually use them on blown applications.
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Old 03-30-2016   #9
ghlkal
 
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Default Re: SLP cold air intake.

Mine had the claw on it when I bought it. I doubt I would pay $300 for it based on performance, but it does look cool.
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Old 03-30-2016   #10
XfireZ51
 
Join Date: May 2007
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Default Re: SLP cold air intake.

Quote:
Originally Posted by Locobob View Post
Here is the old post from the CF. Results for peak HP were within margin of error but notice the average HP and Torque numbers show a small gain.


Today myself and forum member/dyno owner TJ Wong set out to find the truth regarding C4 air intakes. We dyno tested 3 different air intakes on my Lingenfelter 368cid LT5. Tested today were: stock with paper element, stock with K&N element and a cut lid, and finally SLP's "claw" tri-cone filter design. All dyno pulls were made with starting coolant temps at 195 degrees F. Here are the results.

Stock with paper, two identical pulls: 477rwhp. Avg. peak HP 477

Stock with K&N and cut lid, three pulls: 471, 475, 480rwhp. Avg. peak HP 475.3

SLP tri-cone "claw", three pulls: 477, 478, 481rwhp. Avg. peak HP 478.7

It would appear that the naysayers are mostly correct about C4 air intakes, not much to be gained here. Both Tom and I were rather suprised with the results. We had expected to see some small but visible gains with the cut-lid and SLP, instead we got a bunch of tests with peak numbers being basically the same or well within normal dyno pull to pull variation. The SLP unit does seem to have a small advantage over the others but suprisingly it's in mid range power not peak (see dyno graph average power #'s).



Bob,

It would be interesting to see if anything changes regarding the AFR with these.
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