C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

C4 cold air intake

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Old Feb 26, 2013 | 10:44 AM
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Default C4 cold air intake

i am looking for a cold air intake for my 96 LT4! Need some help from the experts on what fits and what works!! Please include part numbers if possible! Thanks!!!!
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Old Feb 26, 2013 | 10:51 AM
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Open the lid of the stock cover, add K&N filter. Save $350

Thats as good as it gets.

99.999% of the "cold air intakes" are nothing more than marketing hype. The benefit is in available fresh air. The stock ductwork is designed to do that. There is no "cold air" by the time it gets as far as the intake. Falacy aftermarket myth that misleads the public with outrageous claims of 10-19 or more hp increase...the very fine print details the truth...on their engine on their test stand under controlled conditions...uh-huh.
The other upside is a filter that passes air easier. AND, the k&N will pay for itself being reusable. I've thrown mine in the washer before...its cotton. treat it like a T shirt..
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Old Feb 26, 2013 | 10:55 AM
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Originally Posted by leesvet
the k&N will pay for itself being reusable. I've thrown mine in the washer before...its cotton. treat it like a T shirt..
My wife would have me sleeping in the shop with ShopCat if I ever tried that.......
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Old Feb 26, 2013 | 11:13 AM
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Originally Posted by rocco16
My wife would have me sleeping in the shop with ShopCat if I ever tried that.......
yeah....

you should have witnessed the effect of car parts in the dishwasher...

darn thing was made for parts ! racks that slide out, rinse action...perfect. Its the solvents and grease that cause problems.


I only did it once.
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Old Feb 26, 2013 | 11:34 AM
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Originally Posted by leesvet
Open the lid of the stock cover, add K&N filter. Save $350

Thats as good as it gets.

99.999% of the "cold air intakes" are nothing more than marketing hype. The benefit is in available fresh air. The stock ductwork is designed to do that. There is no "cold air" by the time it gets as far as the intake. Falacy aftermarket myth that misleads the public with outrageous claims of 10-19 or more hp increase...the very fine print details the truth...on their engine on their test stand under controlled conditions...uh-huh.
True, dat...and if you don't believe it, put a scan tool on the car and drive it around while watching your IAT (Inlet Air Temp). It can be 40 degrees or more over ambient temperature. To me that ain't "cold air".
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Old Feb 26, 2013 | 11:41 AM
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Originally Posted by leesvet
yeah....

you should have witnessed the effect of car parts in the dishwasher...

darn thing was made for parts ! racks that slide out, rinse action...perfect. Its the solvents and grease that cause problems.


I only did it once.
I did the same thing with some Harley engines parts, 'cept I was gonna be smart about it and wash out the racks/dishwasher afterwards with some Simple Green. You'd be amazed how much that stuff suds up with a little hot water and that twirling water arm.

Took about 10 rinses and a pack of shop towels to finally clean that thing up.
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Old Feb 26, 2013 | 12:04 PM
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Originally Posted by Phat98
I did the same thing with some Harley engines parts, 'cept I was gonna be smart about it and wash out the racks/dishwasher afterwards with some Simple Green. You'd be amazed how much that stuff suds up with a little hot water and that twirling water arm.

Took about 10 rinses and a pack of shop towels to finally clean that thing up.


The dishwasher reminds me of the tag on the blow dryer that says "do not use in the shower"....

The DW invites some creative applications. the wife is the gaurd and caretaker of common sense...
I wonder when the mfg are going to start putting tags on the DW that state "Not intended for car parts"

I recall washing some polishing wheels in the washer...I added a bunch of detergent to cope with the heavy wax/grease from hard polishes and the wheels used for aluminum...
I ran rinse cycles for a week trying to get all the goo out of there...
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Old Feb 26, 2013 | 01:44 PM
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I'm going to buy a cheapo dishwasher just for my garage now. Thanks guys
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Old Feb 26, 2013 | 02:40 PM
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I wonder if you could do that with a drum of "safety-clean" instead of water?


hummmmmmmmmm.....
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Old Feb 26, 2013 | 03:58 PM
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Originally Posted by bigwes
i am looking for a cold air intake for my 96 LT4! Need some help from the experts on what fits and what works!! Please include part numbers if possible! Thanks!!!!
I thought the same thing back when I got my LT4. Coming from an LS1 Camaro, and realizing a susbstantial gain by going with a CAI kit on that, I thought it only natural that the LT4 would have similar results, not so much. For some reason the LTx motors don't respond to a CAI like the LSx motors do, probably head design.

I did what was said before, cut off the dust cover, but instead of cutting out the grates, I just opened them up a little more. Note, that the dust cover is there to protect the air filter from water and of course dirt and dust from the gap between the bumper cover and the hood. Increases the frequency of cleaning/replacing.

The other thought I had/have, if I ever stroke the engine and need more air, would be to get an aftermarket CAI designed for the C6. Fitting this will require cutting the radiator shroud, as the air bridge on C5/C6 cars had a much steeper slope. I believe that because the C6 bridge couples more directly to the intake on those cars, the space between the MAF over the radiator would be similar on ours, allowing the C6 airbridge to fit. But until, I have more cubes, I can't see the cost/effort being worth it.
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Old Feb 26, 2013 | 06:51 PM
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SLP Claw

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Old Feb 26, 2013 | 07:17 PM
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Originally Posted by leesvet
Open the lid of the stock cover, add K&N filter. Save $350

Thats as good as it gets.

99.999% of the "cold air intakes" are nothing more than marketing hype. The benefit is in available fresh air. The stock ductwork is designed to do that. There is no "cold air" by the time it gets as far as the intake. Falacy aftermarket myth that misleads the public with outrageous claims of 10-19 or more hp increase...the very fine print details the truth...on their engine on their test stand under controlled conditions...uh-huh.
The other upside is a filter that passes air easier. AND, the k&N will pay for itself being reusable. I've thrown mine in the washer before...its cotton. treat it like a T shirt..
Kind of the same thing but you can save your stock cover and i think it looks better than a cut lid.


http://forums.corvetteforum.com/memb...uby-10429.html

Last edited by higgyburners; Feb 26, 2013 at 07:19 PM.
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Old Feb 26, 2013 | 07:24 PM
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Originally Posted by higgyburners
Kind of the same thing but you can save your stock cover and i think it looks better than a cut lid.


http://forums.corvetteforum.com/memb...uby-10429.html
I removed every other slot on my lid then stripped and polished the rest. Looks pretty good...for those that ever see it !
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Old Feb 26, 2013 | 07:29 PM
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Originally Posted by leesvet
I removed every other slot on my lid then stripped and polished the rest. Looks pretty good...for those that ever see it !
You should take a picture of it! It sounds cool and i'd love to see it.
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Old Feb 26, 2013 | 07:37 PM
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yes i would too
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Old Feb 26, 2013 | 07:52 PM
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Originally Posted by ch@0s
SLP Claw

There is the claw, if you can find one. But from what I've read, it doesnt really offer enough of an increase in airflow to make me want to spend $300 on it. Plus the tubes are metal (heat).
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Old Feb 26, 2013 | 10:38 PM
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Both factory and K&N's pull air from the same location..

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To C4 cold air intake

Old Feb 26, 2013 | 11:30 PM
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Originally Posted by lt4obsesses
For some reason the LTx motors don't respond to a CAI like the LSx motors do, probably head design.
Not really. If you'll look at the above photos the bellows-type air intakes and the MAF sit between the radiator and the engine, absorbing all the heat coming out of the radiator shroud. That's why they make those IAT 'relocation' kits to put the IAT in front of the intake stream - tricks the PCM into thinking you're getting colder air than you really are. Like I stated earlier put a scantool on there and see what your IAT temps are.

As lt4obsesses stated the metal tubes of the SLP probably aren't helping...perhaps if you could insulate them?

BTW, my 120K miles LT4 will absolutely spank the Missus' 2000 C5...and it has a K&N cold air kit (installed by previous owner).

Last edited by Phat98; Feb 26, 2013 at 11:35 PM. Reason: verifying
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Old Feb 26, 2013 | 11:44 PM
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Originally Posted by higgyburners
yes i would too
I'll try to pull it this weekend and give it a quick touch up and get a pic...its currently filthy due to the useless dirt road that is otherwise known as "pit road".....we ain;t talking tires, techs and mechanics either!
I need to brush off the whole thing anyway...working on porting a complete top end to match, so it can replace the semi-TPI thats on there now. I polish shlt...what can I say? it looks better.

I've got an a/c dryer thats polished, another lid in the process and some misc stuff if anyone is interested. Let me know.

or
if you have stuff...send it, I'll tell ya what it will cost before you send. Dist covers, a/c bracets, plenums etc.
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Old Feb 26, 2013 | 11:50 PM
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Originally Posted by Phat98
Not really. If you'll look at the above photos the bellows-type air intakes and the MAF sit between the radiator and the engine, absorbing all the heat coming out of the radiator shroud. That's why they make those IAT 'relocation' kits to put the IAT in front of the intake stream - tricks the PCM into thinking you're getting colder air than you really are. Like I stated earlier put a scantool on there and see what your IAT temps are.

As lt4obsesses stated the metal tubes of the SLP probably aren't helping...perhaps if you could insulate them?

BTW, my 120K miles LT4 will absolutely spank the Missus' 2000 C5...and it has a K&N cold air kit (installed by previous owner).
When I put a K&N FIPK on my LS1 z28, I gained an average .2 sec at the drag strip. It's no secret that the LS engines respond well to CAI's. But it's also no secret (to us LT4 owners) that the LT4 will hold it's own against the LS1.
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