[Z06] Holley Intech CAI - Thoughts?
Thread Starter
Instructor
Joined: Mar 2020
Posts: 101
Likes: 35
Holley Intech CAI - Thoughts?
Saw this but no post on here from C5 owners reviewing it. Considering getting one after the post of dyno sheet. Looks to be a 15hp gain on 01 to 04 C5s and more on the 97 to 01s. Anyone own one that can give feedback?
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
More than likely no gains, the engine they used as a test was only putting out 280 hp on their dyno, most stock engines were around 300 hp. You do not know if they did any tuning after the install--usually done to show better gains. It is still using heated engine air for the intake, so how can it be able to induce more oxygen into the cylinder. When looking at many of the adv. for hp gains the devil is in the details.
Drifting
Joined: May 2019
Posts: 1,752
Likes: 676
From: Lakeland, Florida
More than likely no gains, the engine they used as a test was only putting out 280 hp on their dyno, most stock engines were around 300 hp. You do not know if they did any tuning after the install--usually done to show better gains. It is still using heated engine air for the intake, so how can it be able to induce more oxygen into the cylinder. When looking at many of the adv. for hp gains the devil is in the details.
It looks like the cover would prevent (some ?) engine heat from the filters
Redline Motorsports in Melbourne only use the Halltech https://www.halltechsystems.com/product-p/v2024.htm, it has no cover/heat shield and costs almost twice the Holley. Claims +13 hp
Le Mans Master
Joined: Dec 2017
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From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
No CAI will give 15 HP all by itself. When combined with lots of other mods, in perfect conditions, a CAI can add 15-20HP. However, this is not going to happen on an otherwise stock car with a stock tune. It is likely to improve airflow over stock. It can also (as I've mentioned ) have a bigger impact when combined with other mods. I don't want to suggest that it won't do anything at all. However, it won't make enough difference by itself for you to feel it at all in the butt dyno. If you want a CAI, pick whichever one you want as there's not enough difference between them to matter.
NOTE: The one exception to this is the Vararam system. This is because it is not just a CAI. It is actually a ram air system that actually pushes cold air into the intake.
NOTE: The one exception to this is the Vararam system. This is because it is not just a CAI. It is actually a ram air system that actually pushes cold air into the intake.
Le Mans Master
Joined: Feb 2021
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From: Florida
2025 Corvette of the Year Finalist - Unmodified
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The ram effect is considered effective only at very high speeds. I don’t recall the exact number, but something like 120 mph or more is where it begins. Seems to have a narrow application.
Last edited by Vetteman Jack; Nov 25, 2021 at 08:35 AM.
Le Mans Master
Joined: Dec 2017
Posts: 5,629
Likes: 3,333
From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
It still makes it one of the better systems available, especially since even at lower speeds it is actually drawing in cold outside air, instead of warm air from the engine bay. Regardless, I stand by my post from a year and a half ago which is that most CAI don't really make a significant difference by themselves.
Last edited by Vetteman Jack; Nov 25, 2021 at 08:36 AM.
Le Mans Master
Joined: Feb 2021
Posts: 6,523
Likes: 4,369
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
Oh yeah…I agree with you. I was just adding the ram aspect.
BTW, wasn’t your post from May ‘21 ?
BTW, wasn’t your post from May ‘21 ?
Last edited by Vetteman Jack; Nov 25, 2021 at 08:36 AM.
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