Document Overview
Key Findings The ETENWOLF S1 portable tire inflator successfully inflated a 215/55 R17 tire from 25 psi to 35 psi across 20 consecutive runs on two sample units, with all recorded times falling within a consistent range of approximately 3 minutes 19 seconds to 3…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Motor Performance
Key Findings
The ETENWOLF S1 portable tire inflator successfully inflated a 215/55 R17 tire from 25 psi to 35 psi across 20 consecutive runs on two sample units, with all recorded times falling within a consistent range of approximately 3 minutes 19 seconds to 3 minutes 53 seconds.
- Test target: 215/55 R17 passenger tire, 25 psi → 35 psi (10 psi delta)
- Samples tested: Unit 3# and Unit 4#, 10 runs each (20 total runs)
- Unit 3# range: 3 min 19 sec – 3 min 53 sec
- Unit 4# range: 3 min 27 sec – 3 min 49 sec
- Overall result: Both units demonstrated stable, repeatable inflation performance
Test Overview
| Field | Detail |
|---|---|
| Test Type | Motor Performance — Inflation Speed |
| Product | ETENWOLF S1 Portable Tire Inflator |
| Tire Specification | 215/55 R17 |
| Pressure Range | 25 psi → 35 psi |
| Test Date | 2025-08-15 |
| Source File | S1-打气速度测试数据2025.8.15.xlsx |
| Sheet | S1 |
| Samples | Unit 3# and Unit 4# |
| Runs per Sample | 10 |
| Total Runs | 20 |
Test Equipment & Setup
| Parameter | Value |
|---|---|
| Test Subject | ETENWOLF S1 Portable Tire Inflator |
| Tire Size | 215/55 R17 |
| Starting Pressure | 25 psi |
| Target Pressure | 35 psi |
| Pressure Delta | 10 psi |
| Number of Sample Units | 2 (Unit 3#, Unit 4#) |
| Runs per Unit | 10 |
| Timing Method | Elapsed time recorded per inflation run (format: MM:SS) |
Test Procedure
- Pre-test: Confirm tire is a 215/55 R17 specification. Deflate the tire to the starting pressure of 25 psi.
- Setup: Connect the ETENWOLF S1 inflator hose to the tire valve. Verify secure connection.
- Start timing: Start the timer simultaneously with activating the inflator.
- Inflation: Allow the S1 to inflate the tire continuously from 25 psi to 35 psi.
- Stop timing: Stop the timer when the unit reaches and cuts off at the 35 psi target pressure.
- Record: Log elapsed time in minutes and seconds for the run.
- Repeat: Deflate the tire back to 25 psi. Repeat steps 2–6 for a total of 10 runs per sample unit.
- Post-test: Review all 20 run records for consistency. Flag any outliers.
Acceptance Criteria: Inflation times should be repeatable and consistent across all runs for both units, demonstrating stable motor performance under continuous cycling conditions.
Test Data & Results
All 20 inflation runs are recorded below. Times are expressed in minutes and seconds (MM:SS). The table preserves the original dual-column layout with Unit 3# on the left and Unit 4# on the right.
| Unit 3# — Run No. | Unit 3# — Time (MM:SS) | Unit 4# — Run No. | Unit 4# — Time (MM:SS) |
|---|---|---|---|
| 1 | 3:26 | 1 | 3:37 |
| 2 | 3:30 | 2 | 3:31 |
| 3 | 3:39 | 3 | 3:36 |
| 4 | 3:45 | 4 | 3:43 |
| 5 | 3:53 | 5 | 3:44 |
| 6 | 3:25 | 6 | 3:28 |
| 7 | 3:19 | 7 | 3:27 |
| 8 | 3:42 | 8 | 3:37 |
| 9 | 3:47 | 9 | 3:41 |
| 10 | 3:52 | 10 | 3:49 |
Observations: Unit 3# recorded a minimum of 3:19 and a maximum of 3:53, a spread of 34 seconds across 10 runs. Unit 4# recorded a minimum of 3:27 and a maximum of 3:49, a spread of 22 seconds across 10 runs. Both units show minor run-to-run variation consistent with normal motor warm-up and ambient temperature effects. No anomalous outliers or failures were recorded in either sample.
Conclusion
| Item | Detail |
|---|---|
| Test | Inflation Speed — 215/55 R17, 25 psi to 35 psi |
| Standard | Internal motor performance protocol |
| Conditions | 10 psi pressure delta, repeated 10 times per unit |
| Samples | Unit 3# and Unit 4# |
| Unit 3# Time Range | 3:19 – 3:53 |
| Unit 4# Time Range | 3:27 – 3:49 |
| Verdict | PASS — Both units demonstrated consistent and repeatable inflation performance within an acceptable variance band |
Document Information
| Role | Name |
|---|---|
| Author / Tester | Daniel Wright |
| Source File | S1-打气速度测试数据2025.8.15.xlsx |
| Sheet Name | S1 |
| Date Recorded | 2025-08-15 |
| Published | 2026-07-11 |
Frequently Asked Questions
How long does the ETENWOLF S1 take to inflate a 215/55 R17 tire from 25 to 35 psi?
In testing, the ETENWOLF S1 inflated a 215/55 R17 tire from 25 psi to 35 psi in approximately 3 minutes 19 seconds to 3 minutes 53 seconds across 20 repeated runs on two sample units. Typical inflation time is around 3 minutes 35 seconds.
Is the ETENWOLF S1 inflation speed consistent across multiple uses?
Yes. Across 10 consecutive runs per unit, both tested samples showed stable, repeatable times with run-to-run variance of under 35 seconds. This indicates consistent motor and pump performance under normal cycling conditions.
What tire sizes is the ETENWOLF S1 suitable for?
This specific test used a 215/55 R17 tire, a common mid-size passenger car specification. The S1 is designed for standard passenger car tires. For other sizes or higher-volume tires, consult the product specification sheet.
What pressure range was used in the ETENWOLF S1 inflation speed test?
The test measured inflation from 25 psi to 35 psi, a 10 psi delta, which represents a realistic top-up scenario for a slightly underinflated passenger tire.
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