09-22-2023, 03:54 PM | #1 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,854
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Big Gulp = CAI? Not so much..
So I'm in the process of routing cooler air to the TB by doing the ram jet snorkel, removing rain/snow backing, and improving the air let areas.
I was checking engine compartment temps as I always do and noticed that the outside face of the Big Gulp nearest the header gets to 115F. The inside face nearest the filter reaches 100F and the edge of the filter reaches 85-90F, etc., whereas the headlight side of the filter was nearer to ambient. So, I covered the outside of BG with DEI heat shield. The BG also did not fit the body panel or hood well, and there were gaps between the BG's pieces, so, I filled all those gaps with insulation. The BG surfaces now run much closer to ambient. I can already see improvement in IAT and MAT. The snorkel and headlight area work is next week. The point is, I was surprised that mine needed this rework. Your CAI also might not be as efficient as it could be.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
09-22-2023, 04:35 PM | #2 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 5,200
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.10@152.5
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09-22-2023, 06:21 PM | #3 | |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: GA
Posts: 3,302
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09-22-2023, 06:39 PM | #4 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 5,200
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.10@152.5
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09-22-2023, 07:36 PM | #5 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,854
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Did you read the part where I'm doing ram air snorkel and adding additional areas of air flow next week? We're saying the same thing. CAI is just one part.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
09-22-2023, 07:40 PM | #6 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: GA
Posts: 3,302
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09-22-2023, 09:45 PM | #7 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 5,200
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Quote:
…this is a serious possibility. I question the air filter size for two reasons: 1. Pray nets 35 WHP on a 930 WHP Camaro with simply removing the filter and adding a bell mouth. 2. I just put a nice CF Corsa CAI on my wife’s new Mustang GT and the filter they provide was bigger and better designed than the filter on my BG! My wife’s car needs 48 lbs/min of airflow…. I need 123 lbs/min of airflow… WTF lol So couple questionable filter size with a “box” area that’s choked for airflow and I think it helps explain why cars that dyno big numbers often struggle to get drag strip performance that lines up. I noticed Jason Leiva’s car does not run the heat shield at all! So it’s pulling in “hot” engine bay air…and trapping 173 MPH. Lesson learned!
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.10@152.5
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09-23-2023, 06:26 AM | #8 | |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: GA
Posts: 3,302
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Quote:
Last edited by Z OH 6; 09-23-2023 at 07:29 AM. |
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09-23-2023, 08:24 AM | #9 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,854
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Quote:
I have a bell mouth which I plan to use at the track so I can determine if it alone helps. My goal is to run 8.9x but all the big hp gains have been made. The accumulation of a bunch of little gains should help me get there. That's why I'm doing them. Plus, I enjoy it.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. Last edited by JSH; 09-23-2023 at 03:09 PM. |
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09-23-2023, 02:37 PM | #10 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,873
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Good write up.
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
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09-25-2023, 12:08 PM | #11 |
Drives: 2017 Chevrolet Camaro ZL1 Join Date: Jul 2018
Location: Canton, GA
Posts: 459
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I love the discussions on if RotoFab works and the importance of shielding filters, etc., all while we have been the quickest and fastest PD blown 6th gen for a couple years now doing this.
We did recently remove the headlight. I have no data to say if it helped, but we also just replaced the pictured intake with a larger 3D printed one with a larger bell mouth and picked up 1.5 psi even in 3300 DA.
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2017 ZL1 - PB 7.85 @ 175 MPH @ 3682 lbs @ 1313 DA (work in progress)
Built by Vengeance Racing, tuned by Elite Tuned |
09-25-2023, 12:17 PM | #12 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,854
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Quote:
__________________
'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
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09-25-2023, 12:24 PM | #13 |
Drives: 2017 Chevrolet Camaro ZL1 Join Date: Jul 2018
Location: Canton, GA
Posts: 459
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The inside diameter of that bell mouth and pipe is just 4.5".
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2017 ZL1 - PB 7.85 @ 175 MPH @ 3682 lbs @ 1313 DA (work in progress)
Built by Vengeance Racing, tuned by Elite Tuned |
09-25-2023, 02:04 PM | #14 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,854
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How do you feel about running without an air filter? The dragonflies in Georgia can be huge!
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
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