09-27-2023, 07:49 AM | #29 | |
Coupe Newbie
Drives: 2017 ZL1, 2021 Corvette Convertible Join Date: Jul 2011
Location: Columbus, Ohio
Posts: 3,283
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If you haven't seen this video, it raises some serious questions regarding the performance of these supposedly after-market cold air intakes.
I know quarter-mile runs versus track laps are like comparing apples to oranges. However, it makes perfect sense to me that the OP would want the largest quantity of the coldest air possible going into the engine. I'm just skeptical that can be achieved based on the design of the Roth-Fab.
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09-27-2023, 08:23 AM | #30 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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If you haven't seen this video, it raises some serious questions regarding the performance of these supposedly after-market cold air intakes.
I know quarter-mile runs versus track laps are like comparing apples to oranges. However, it makes perfect sense to me that the OP would want the largest quantity of the coldest air possible going into the engine. I'm just skeptical that can be achieved based on the design of the Roth-Fab. I watched this video and knew it was on the right track when he mentioned that the BG with all of its gaps takes in a lot of engine compartment air, which is 120F+ versus 45-75F ambient (here). This is why I've sealed all the gaps in the intake area. Temps have come way down. And I'm doing a ram air snorkel, removing the rain/snow blocker behind the upper grill and driver's side headlight, etc. One question I now have is, is there a closed-air box similar to OEM that can fit over my current 6" inlet tube?
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
09-27-2023, 08:26 AM | #31 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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Quote:
One question I now have is, is there a closed-air box similar to OEM that can fit over my current 6" inlet tube? [/QUOTE]
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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09-27-2023, 11:52 AM | #32 |
Drives: 2022 Camaro LT1 A10 Join Date: Nov 2015
Location: new england
Posts: 373
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About 10-12 years ago I had a SSRA CAI on my old 4thgen. Tried it at the track. then took it off. Tried it at the track. Just speaking of cooler IATs, the car was more consistent in the 60' and over all with the 1/4 time was a couple tenths faster. I watched my IATs and the car just sitting still brought in cooler air with the CAI and that is why I believe the 60' was more consistent/lower. Watching IATs after the car was rolling read lower also due to the direct path to available cooler air. So FWIW, I learned from experience cooler IATs is defiantly a plus.
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2022 Camaro LT1 A10 - Drag Pack/AxleBack -11.849@118.67MPH/1.798 60' 2001 Camaro SS A4 - HCI/Stall/Bolt-on/Gear/Tune/DR/Diet - 429HP/392TQ - 10.99@123.58MPH/1.584 60' 1998 Camaro Z28 A4 - Bolt-on 1999 Camaro Z28 A4 - Stock FJB |
09-27-2023, 05:58 PM | #33 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,935
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The 4th gen CAI filter location outside of the engine compartment and behind the lower bumper cover was ideal. I had one on mine and it made a noticeable difference in performance.
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09-27-2023, 06:57 PM | #34 |
Drives: 2017 Chevrolet Camaro ZL1 Join Date: Jul 2018
Location: Canton, GA
Posts: 405
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I think it’s fair to say an NA car would benefit much more than a blower where the air is getting compressed and pushed through an intercooler.
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2017 ZL1 - PB 8.05 @ 172 MPH @ 3730 lbs @ 70 DA (work in progress)
Built by Vengeance Racing, tuned by Elite Tuned |
09-27-2023, 07:12 PM | #35 | |
Drives: 19’ ZL1 A10 / 16’ C7Z M7 Join Date: Apr 2021
Location: Fort Wayne, IN
Posts: 247
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Quote:
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09-27-2023, 07:17 PM | #36 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,935
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Good point. The 2012 ZL1 also picked up over a pound of boost with a RotoFab due to the restrictive factory air box. I think GM did a much better job with the 6th gen air feed. I need to at least remove the snow blocker from mine. Eee
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09-28-2023, 12:15 AM | #37 | |||
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 437
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Quote:
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This is also the second time I have seen someone talk about how it indeed proves to be a hot air style intake so it only further solidifies my initial thinking on this thing compared to the stock air box. I've been running an AEM dry flo filter on the stock air box since I got it and if I was looking for supercharger sound, I'd be more inclined to shoot for a lid before an intake or just suck it up and deal with the added whine all the while compromising performance for added noise.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% Pulley, NGK HR7 Ruthenium spark plugs, Katech Oil Pump, LME tensioner, DOD delete, Cam, MPI lid, Soler ported 87mm (91mm effective) TB, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, Borla X pipe, AFe NPP exhaust, Black Widow Angry Housewife/ Venom 250 mufflers, BMR engine mounts, Banks iDash, Lithium Battery, Course Motorsports phone mount, AEM X- Series, HP Tuners, JMS, E85, 13.6 psi
737 HP/ 779 TQ |
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09-28-2023, 04:53 AM | #38 |
Drives: 2020 Chevy Camaro ZL1 Join Date: Apr 2023
Location: Calgary Canada
Posts: 1,483
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Also not a fan of open air box, that’s why I chose the elite over the others. It has quite a large surface area filter.
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09-28-2023, 09:01 AM | #39 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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I like it, but they don't make a 6" intake. The best I an do is insulate and seal-up mine. I've considered running the 6" intake tube up to the stock gasket.
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
09-28-2023, 09:11 AM | #40 | |
Drives: 2017 Chevrolet Camaro ZL1 Join Date: Jul 2018
Location: Canton, GA
Posts: 405
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I know projects are fun and its nice to think you are doing something unique, but just as a reminder, this is a pic of my car on the day that it ran 8.20 at 173 MPH in ~1k DA. The filter never came off. All I'm saying is, no reason to overthink this.
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2017 ZL1 - PB 8.05 @ 172 MPH @ 3730 lbs @ 70 DA (work in progress)
Built by Vengeance Racing, tuned by Elite Tuned |
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09-28-2023, 09:44 AM | #41 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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Quote:
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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09-28-2023, 09:58 AM | #42 | |
Drives: 2017 Chevrolet Camaro ZL1 Join Date: Jul 2018
Location: Canton, GA
Posts: 405
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Quote:
From the setup in the picture we changed pulley's for an additional 1.5 psi, added the bell mouth 1.5 psi more, and then went to a larger intake with integrated bell mouth for another 1.5 psi. So from when it ran that pass, its already making ~4 psi more in worse air - same location of intake, albeit the headlight is now removed.
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2017 ZL1 - PB 8.05 @ 172 MPH @ 3730 lbs @ 70 DA (work in progress)
Built by Vengeance Racing, tuned by Elite Tuned |
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