VIAIR 88p vs 90p: Which One Is Better?

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Table of Contents:

I. Introduction
II. VIAIR Portable Compressors 88 P and 90 P | A Comparison and Review
III. Buying tips for 88P and 90 P, Which model is good for you?
IV. A Short brief about other similar models from VIAIR Brand-70 P, 74 P, 75 P, 77 P, 78 P, 84 P, 85 P, and 87 P
Table A: Comparison of Viar Portable Compressors
Table B: Comparison of Viar Portable Compressors
Table C: Performance data
Table D: Comparison of Air Fill Rates
V. Conclusion

I. Introduction

When you are planning a family vacation trip in your car, do not forget to load your VIAIR Portable Compressor in the car trunk. VIAIR Portable Compressor will take away all your worries about getting stranded on the free-way with a deflated tire.

II. VIAIR Portable Compressors 88 P and 90 P | A Comparison and Review

VIAIR models 88 P and 90 P are compact, yet powerful Portable Compressors or tire inflators. Connecting 88 P and 90 P is very simple and easy.

Please go through the user manual carefully before using VIAIR tire inflators.

Comparison of features, specifications, fill rate, and performance for 88 P and 90 P can be seen in Table-1, Table-2, and Table-3 below.

TABLE-1
Comparison of VIAIR Popular Portable Compressors 88 P and 90 P*
No Features 88 P 90 P
01 Suitable for Tire Size For up to 33” tires For up to 31” tires
02 Thermal overload protector NA YES
03 Heavy Duty Steel Stand with Vibration Isolators Not Available (NA) YES
04 LED Work Llight / Power Indicator YES NA
05 120 PSI Pressure Gauge YES NA
06 120 PSI Pressure Gauge with Rubber Boot NA YES
07 Tire Chuck with Built-in Bleeder Valve NA YES
08 30 amps Inline Fuse Holder NA YES
09 Dual battery clamps YES YES
10 Solid Brass Twist-on Tire Chuck YES NA
11 3 piece inflation Tips Kit YES YES
12 Deluxe Carry Bag YES YES
No Specifications 88 P 90 P
01 Required volts (Battery) 12 V 12 V
02 Permanent magnetic motor YES YES
03 Duty cycle 25 Minutes @ 30 PSI 30 Minutes @30 PSI
04 Maximum working pressure 120 PSI 120 PSI
05 Maximum CFM @ 0 PSI 1.47 1.21
06 Maximum current drawn 20 Amps 23 Amps
07 Ingress protection rating IP 53 IP 54
08 Maximum Ambient Temperature +158º F Not mentioned
09 Minimum Ambient Temperature -4º F Not mentioned
10 Dimensions- Length * width * height – In inches 9.8 * 3.2 * 5.6 6.80 * 3.70 * 6.50
11 Net weight – pounds 4.75 5.75
12 Length of the power cord in feet 10 12
13 Length of the air hose in feet 16 5
14 Recommended Components – 6 feet Portable Compressor Air Extension Hose YES YES

*Data compiled from the official website of VAIR @ www.vaircorp.com/portables

TABLE-2
COMPARISON OF AIR FILL RATE FOR 88 P AND 90 P*
Tire size Fill range Fill rate
88 P 90 P
195/70R14 20-30 PSI 35 sec. (± 05 sec.) 35 sec. (± 05 sec.)
30-40 PSI 40 sec. (± 05 sec.) 40 sec. (± 05 sec.)
225/60R18 20-30 PSI 50 sec. (± 05 sec.) 50 sec. (± 05 sec.)
30-40 PSI 1 min. 00 sec. (± 05 sec.) 1 min. 05 sec. (± 05 sec.)

*Data compiled from the official website of VAIR @ www.vaircorp.com/portables

TABLE-3
COMPARISON OF PERFORMANCE DATA FOR 88 P AND 90 P*
No PSI 88 P 90 P
CFM Amps CFM Amps
1 0 1.47 17 1.21 15
2 10 1.44 18 1.19 16
3 20 1.34 18 1.13 17
4 30 1.25 18 1.06 18
5 40 1.15 18 0.98 19
6 50 1.04 19 0.92 20
7 60 0.93 20 0.85 20
8 70 0.86 19 0.80 21
9 80 0.75 18 0.73 21
10 90 0.64 17 0.68 22
11 100 0.54 16 0.64 23
12 110 0.45 15 0.58 22
13 120 0.35 14 0.54 21

*Data compiled from the official website of VAIR @ www.vaircorp.com/portables

From Table-1 and Table-2 above, you can understand that many of the features and specifications are different for VIAIR Portable Compressor 88 P and 90 P; such differences are highlighted. Let us review these features and specifications.

  • VIAIR Portable Compressor 88 P is suitable for tire sizes up to 33ʺ tires whereas 90 P is suitable for up to 31ʺ tires.
  • 90 P has a thermal overload protector that automatically cuts off power to the compressor when the internal temperature goes above the safe level and again resets automatically once the temperature drops to a safe level. This safety feature is not available in 88 P.
  • 90 P has a Heavy Duty Steel Stand with Vibration Isolators and 30 amps Inline Fuse Holder. These features are not available in 88 P.
  • 88 P has LED Work light / Power Indicator and this is not there in 90 P.
  • Both 88 P and 90 P have 120 PSI pressure gauge, however, there is a minor difference in their mounting.
  • 88 P has Solid Brass Twist-on Tire Chuck and 90 P has Tire Chuck with Built-in Bleeder Valve.
  • The duty cycle for 88 P is 25 Minutes @ 30 PSI and for 90 P, it is 30 Minutes @ 30 PSI.
  • Maximum CFM @ 0 PSI for 88 P is 1.47 and for 90 P is 1.21.
  • There is a slight difference in current drawn by 88 P (20 Amp) and 90 P (23 Amp). Moroever, ingress protection rating for 88 P is IP 53 and for 90 P is IP 54.
  • Model 90 P (5.75 Lbs.) is heavier than 88 P (4.75 Lbs.).

Table-2 shows the air fill rate for the tire size 195/70R14 (24.7 inches) and 225/60R18 (28.6 inches) with fill ranges, 20-30 PSI and 30-40 PSI. There is a negligible difference in the fill rate of 88 P and 90 P.

A perusal of Table-3 ‘performance data’ reveals- from 0 to 80 PSI, 88 P gives more volume of air (CFM) than 90 P; and from 90 to 120 PSI, 90 P gives more CFM than 88 P.

Both the VIAIR models 88 P and 90 P are reliable, compact, and efficient to serve you.



III. Buying tips for 88P and 90 P, Which model is good for you?

The above analysis shows that for tire sizes 195/70R14 and 225/60R18, there is a marginal difference in the Air Fill-rate of 88 P and 90 P.

However, as per the specifications, 88 P is recommended for tires up to 33ʺ size and 90 P up to 31ʺ size. Based on this count, 88 P is beneficial and you can save some money.

If you review the specification and features of 88 P and 90 P, 90 P has the following additional features which are not there in the 88 P:

  • Heavy Duty Steel Stand with Vibration Isolators
  • Thermal overload protector
  • Tire Chuck with Built-in Bleeder Valve
  • 30 amps Inline Fuse Holder
  • Better duty cycle- 30 Minutes @30 PSI
  • Ingress protection rating IP 54

Hence, you have to make a decision between “to have” or “not to have” the above additional features (some of them are safety features).

Both 88 P and 90 P will be able to meet your main need, which is inflating your tires.

IV. A Short brief about other similar models from VIAIR Brand-70 P, 74 P, 75 P, 77 P, 78 P, 84 P, 85 P, and 87 P

Based on the features, the above models can be divided into two groups.

Group-1 will include models 70 P, 74 P, 75 P, 77 P, and 78 P which are suitable for tire sizes up to 225/60R18(28.6 inches).

Group-II will include 84 P, 85 P, and 87 P which are suitable for tire sizes up to 31 inches.

Group-1 70 P, 74 P, 75 P, 77 P, and 78 P

Please go through the comparison of features, specifications, performance data and air fill rate data in the enclosed sheet (Table-A, Table-B, Table-C, and Table-D).

Table-A: COMPARISON OF VIAIR PORTABLE COMPRESSORS (All Variants)*

NoFeatures70 P74 P75 P77 P78 P84 P
01Suitable for tyres up to225/60R18225/60R18225/60R18225/60R18225/60R1831 inches
02Thermal Overload ProtectorYESYESNA (Not available)YESYESNA
03Vibration IsolatorsYESYESYESYESYESNA
043 pc. Inflation Tips KitYESYESYESYESYESYES
05Pressure Gauge mounted on the compressor150 PSI150 PSI60 PSI80 PSI80 PSI100 PSI
06Accessory Power PlugYESNot mentionedYESYESYESYES
07Dual Battery ClampsNANANANANANA
08Deluxe Carry BagYESYESNAYESYESYES
09Integrated Metal Storage CaseNANAYESNANANA
10Press-on Tire ChuckYESYESYESYES
11Solid Brass Twist-on Tire ChuckNANANANANANA
1215 Amp Inline Fuse HolderNAYESNANAYESNA
13Durable Leather Tipped HandleNot mentionedNot mentionedYESNot mentionedNot mentionedNot mentioned
14LED Work LightNANANAYESYESNA
15LED Work Light / Power IndicatorNANANANANAYES
16Illuminated Pressure DisplayNANANAYESYESNA
17Installation Instructions**YESYESYESYESYESNot mentioned
18Where to buyBuy on AmazonBuy on AmazonBuy on AmazonBuy on AmazonBuy on AmazonBuy on Amazon
** Please go through the user manual.

Table-B: COMPARISON OF VIAIR PORTABLE COMPRESSORS

NoSpecifications70 P74 P75 P77 P78 P84 P85 P87 P
01Required volts (Battery)12 12 24 12 12 121212
02Permanent magnetic motorYESYESYESYESYESYESYESYES
03Duty Cycle30 minutes @30 PSI30 minutes @30 PSI100% @ 50 PSI30 minutes @30 PSI30 minutes @30 PSI20 minutes @30 PSI20 minutes @30 PSI20 minutes @30 PSI
04Maximum Working Pressure100 PSI 100 PSI 50 PSI 80 PSI 80 PSI 60 PSI 60 PSI 60 PSI
05Maximum CFM @ 0 PSI1.06 CFM1.06 CFM1.43 CFM1.06 CFM1.06 CFM1.26 CFM1.26 CFM1.26 CFM
06Maximum Current / Watts drawn15A / 180W15A / 180W10A / 120W15A / 180W15A / 180W15A 15A / 180W15A
07Ingress Protection RatingIP 54IP 54IP 54IP 54IP 54IP 53IP 53IP 53
08Maximum Ambient Temperature9 * 4.9 * 7.5+158º F+158º F+158º F+158º F+158º F+158º F+158º F
09Minimum Ambient Temperature8.70-4º F-4º F-4º F-4º F-4º F-4º F-4º F
10Dimensions in inches- L * W * H6.5*3.6*6.26.5*3.6*6.29.64*4.33*9.687.35*3.6*5.47.35*3.6*5.49.1*3.1*5.69.1*3.1*5.69.1*3.1*5.6
11Net Weight in pounds5.055.054.445.005.004.304.304.30
12Power Cord Length in feet16161016.516.5101010
13Air hose length in feet44244338
14Recommended Components
6 feet Portable Compressor Air Extension Hose
YESYESYESYESYESYESYESYES
*Data compiled from the official website of VAIR @ www.vaircorp.com/portables

Table-C: PERFORMANCE DATA FOR VIAIR PORTABLE COMPRESSORS 70 P, 74 P, 75 P, 77 P, 78 P, 84 P, 85 P & 87 P

NoPSI70 P74 P75 P77 P78 P84 P85 P87 P
CFMAmpsCFMAmpsCFMAmpsCFMAmpsCFMAmpsCFMAmpsCFMAmpsCFMAmps
101.06121.06121.386.31.06121.06121.26131.26131.2613
2101.01131.01131.017.61.01131.01131.22131.22131.2213
3200.92130.92130.928.60.92130.92131.13131.13131.1313
4300.84140.84140.749.00.84140.84141.02141.02141.0214
5400.76140.76140.629.20.76140.76140.92150.92150.9215
6500.67150.67150.579.10.67150.67150.80140.80140.8014
7600.59150.59150.59150.59150.71130.71130.7113
8700.53140.53140.53140.5314
9800.46140.46140.46140.4614
10900.38130.3813
111000.33130.3313
*Data compiled from the official website of VAIR @ www.vaircorp.com/portables
Supply voltage-13.8 Volts

Table-D: COMPARISON OF AIR FILL RATES FOR 70 P, 74 P, 75 P, 77 P, 78 P, 84 P, 85 P, & 87 P

Tire sizeFill rangeFILL RATE
70 P74 P75 P77 P78 P84 P85 P87 P
195/70R1420-30 PSI46 seconds (±05sec.)46 seconds (±05sec.)1 min. 00 sec. (±05sec.)46 seconds (±05sec.)46 seconds (±05sec.)41 seconds (±05sec.)41 seconds (±05sec.)41 seconds (±05sec.)
30-40 PSI1 min. 00 sec. (±05sec.)1 min. 00 sec. (±05sec.)1 min. 00 sec. (±05sec.)1 min. 00 sec. (±05sec.)1 min. 00 sec. (±05sec.)53 seconds (±05sec.)46 seconds (±05sec.)40 seconds (±05sec.)
225/60R1820-30 PSI1 min. 15 sec. (±05sec.)1 min. 15 sec. (±05sec.)1 min. 21 sec. (±05sec.)1 min. 15 sec. (±05sec.)1 min. 16 sec. (±05sec.)1 min. 10 sec. (±05sec.)55 seconds (±05sec.)54 seconds (±05sec.)
30-40 PSI1 min. 29 sec. (±05sec.)1 min. 29 sec. (±05sec.)1 min. 21 sec. (±05sec.)1 min. 29 sec. (±05sec.)1 min. 29 sec. (±05sec.)1 min. 20 sec. (±05sec.)1 min. 05 sec. (±05sec.)1 min. 05 sec. (±05sec.)

You will notice that all these portable compressors need to be plugged into the cigarette lighter power port of your car and the features and specifications differ slightly.

A review of performance and air fill rate shows that the data is the same for 70 P, 74 P, 77 P, and 78 P; however, they are marginally different for 75 P.

Group-II 84 P, 85 P, and 87 P

Please go through the comparison of features, specifications, performance data and air fill rate data in the enclosed sheet (Table-A, Table-B, Table-C, and Table-D).

You will notice that 84 P and 85 P need to be plugged into the cigarette lighter power port of your car; however, 87 P comes with dual battery clamps for direct connection to your car battery. The features and specifications of these models differ slightly.

A review of performance and air fill rate shows that the models 84 P, 85 P, and 87 P have the same performance.

When it comes to air fill rate, you can say that 87 P is slightly better than 85 P and 85 P is slightly better than 84 P.



V. Conclusion

VIAIR Portable Compressors 88 P and 90 P are compact, reliable, and can meet your requirement of compressed air when you are away from town. VIAIR portable compressor, sitting in your car trunk, will remove your worry of getting stuck on the road with a deflated car tire.

Go to the VIAIR website www.viaircorp.com  and view the website page ‘Need Help Choosing the Portable Tire Inflator’ to choose the correct size of Portable Compressor.