Pro Power Onboard — airing up and trail tools

[P0H0]

Does this change what air compressor and tools you bring?

 

[Yeti]

Most portables are pretty low current draw. That said, you'll run over its designated run time with anything over 33" tires

 

[P0H0]

Stay with a CO2 tank/off-road portable or a step up to a more powerful compressor with power onboard?

 

[Yeti]

Stay with a CO2 tank/off-road portable or a step up to a more powerful compressor with power onboard?

A lot of people like the CO2 route. I have an ARB twin that I'll be hard wiring to the truck. My decision was purely based on weight. Both are very good options but there may be a portable solution that can use pro power and have a good duty rating, too.

 

[P0H0]

So, I think if you’re going to vehicle mount your air compressor, there is definite advantage in still doing so. However, where you mount it also matters, under the bed or in the engine bay exposes it to the elements — plus you should still drain the tank every so often.

What about a bed mount for a regular plug in portable air pump? Then you can take it out when doing your daily driving, or maybe you have a shell. Size and weight also matter…

Is this a potential new space for some alternate compressor designs (power and form factor) taking advantage of the Power onboard?

 

[Yeti]

So, I think if you’re going to vehicle mount your air compressor, there is definite advantage in still doing so. However, where you mount it also matters, under the bed or in the engine bay exposes it to the elements — plus you should still drain the tank every so often.

What about a bed mount for a regular plug in portable air pump? Then you can take it out when doing your daily driving, or maybe you have a shell. Size and weight also matter…

Is this a potential new space for some alternate compressor designs (power and form factor) taking advantage of the Power onboard?

yeah, there are Molle type panels you can add to your bed then create a strap or mount for a portable compressor.
With my compressor, I mount it in the bed but under a rack mounted container and don't use a tank (currently). Tanks are super useful depending on your compressor run time and pressure ratings and how much air you intend on using at a time. it takes me 10-20 minutes to fill all 4 tires from airing down and my compressor is rated at "constant use" which really means an hour before it'll get too hot to use.

 

[P0H0]

Hey Yeti -

So with the stock rims and tires, what PSI should we be airing down to over certain terrain types? Advantages and disadvantages (traction, MPG and tire wear)? Obviously, you don’t want to go so low to slip off the rim — we aren’t running beadlocks.

- Rocky Hills
- Sand
- Mud
- Soft Dirt (Fields or Plains)
- Dirt Roads
- Gravel Roads
- Streets

 

[Yeti]

Hey Yeti -

So with the stock rims and tires, what PSI should we be airing down to over certain terrain types? Advantages and disadvantages (traction, MPG and tire wear)? Obviously, you don’t want to go so low to slip off the rim — we aren’t running beadlocks.

- Rocky Hills
- Sand
- Mud
- Soft Dirt (Fields or Plains)
- Dirt Roads
- Gravel Roads
- Streets

Check your load rating.
If I'm right, our stock tires are shit.
Nothing with sharp rocks but the top 4 start with 26-30 pounds, the rest maybe 5 pounds short of spec.

With e rated tires or above, I do 18 pounds on 18" wheels which is conservative for the first 4. Everything else, I run around 45 front and 40 rear unless I'm trailering then I go spec.

I'll be keeping my stock for trailering and a second set like the STT Pros for off road

 

[RotorHead695]

Most portables are pretty low current draw. That said, you'll run over its designated run time with anything over 33" tires

I can get 2 trucks with 35s aired back up from 15 psi before going over my cycle time with my Viair. I fill all 4 tires simultaneously. I prefer it being portable rather than onboard because I move my off-road kit between my truck and our Jeep. IMO, don't bother trying to find an AC compressor just because you have the 2.2 kW converter. Seems like a pain when the 12v works just fine.

I run 15 psi for most of my off-road terrain and not going high speed with the Raptor. I typically run 35 PSI for normal day to day when not hauling a heavy load. I run D rated tires and will on the Tremor too.

 

[Yeti]

I can get 2 trucks with 35s aired back up from 15 psi before going over my cycle time with my Viair. I fill all 4 tires simultaneously. I prefer it being portable rather than onboard because I move my off-road kit between my truck and our Jeep. IMO, don't bother trying to find an AC compressor just because you have the 2.2 kW converter. Seems like a pain when the 12v works just fine.

I run 15 psi for most of my off-road terrain and not going high speed with the Raptor. I typically run 35 PSI for normal day to day when not hauling a heavy load. I run D rated tires and will on the Tremor too.

Yeah, just setting expectations with cheapy portable units vs $300+ units.

 

[P0H0]

Check your load rating.
If I'm right, our stock tires are shit.
Nothing with sharp rocks but the top 4 start with 26-30 pounds, the rest maybe 5 pounds short of spec.

With e rated tires or above, I do 18 pounds on 18" wheels which is conservative for the first 4. Everything else, I run around 45 front and 40 rear unless I'm trailering then I go spec.

I'll be keeping my stock for trailering and a second set like the STT Pros for off road

Correction — The Load Rating on the General Grabber ATX 275/70 R18 is E

 

[Yeti]

Load Rating on the General Grabber ATX is D

View attachment 306

Yeah, no. The load rating for the LT version of the tires we're supplied with are E. Unfortunately, our tires are SL - standard load.

 

[RotorHead695]

Load Rating on the General Grabber ATX is D

View attachment 306

It's actually not...we were just chatting about this on another thread. There are two tire choices for the General Grabber A/TX in 275/70R18. I incorrectly assumed they were E rated, but as Yeti pointed out, Ford chose the SL with max 44 psi. SL is equivalent ply rating of Load B tires.

 

[Yeti]

It's actually not...we were just chatting about this on another thread. There are two tire choices for the General Grabber A/TX in 275/70R18. I incorrectly assumed they were E rated, but as Yeti pointed out, Ford chose the SL with max 44 psi. SL is equivalent ply rating of Load B tires.

Cool. I was wondering what the equivalent was. I only know I go with load index 125 and specifically E range.