repurposing stock air pump. air lift kit/ fill tires?

[wingysataday]

Maybe this has been discussed somewhere but can the stock pump be used to air up tires or fill a tank maybe?
I also can't find the guy who hooked the stock pump up to his aftermarket air lift coil bags.
Where is the stock air pump?

 

[RobertD]

From what I read it's nothing compared to a purpose built compressor by ARB or VIAIR and the stock unit probably would not hold up to repeated use.

GX Air Compressor Conversion

GX470 Suspension suggestions and overall height question

post 24

 

[ChiTown]

It is located behind the left rear wheel. The cfm on the stock compressor is miserable compared to even the cheapest aftermarket compressors.

Hooking it up to the aftermarket bags wouldn't be hard, accurately controlling the compressor would be the hard part.

 

[wingysataday]

found this how to trick the air compressor.

Setting rear Air height on 4R/GX and Prado - Toyota 120 Platforms Forum

 

[ChiTown]

Yeah but the factory bags are the spring, aftermarket bags are just reinforcement. If you try the height adjustment trick you may damage your aftermarket bags

 

[THeGeNTLeMaN]

@SouthernSS had his Factory pump hooked to aftermarket bags ... I then bought them from him after he went to long travel. ... the bags are still in the springs but aren't hooked up to anything yet ....
Like others said hooking it up isn't hard ... its controlling the air going into the bags ... AKA tricking the sensor ... even if you trick it ... having the system constantly keep air in the bags will make the ride stiff unless you can figure out a way to manually control the pump so you just and air when you want ... thats why im gonna just run two direct lines that can be filled when i need to tow a load ...that make sense?

 

[wingysataday]

That's how I did it on our van. I just use a hand pump.

 

[SouthernSS]

I used the air bag sensor spacing trick to work with my Radflo 2" lift springs. It turned out that the height I had chosen to trick my rear air bags was very nearly the exact height the radflo coils ended up at. I remember taking a pre and post coil swap measurement from the hub to the fender and it was exactly the same. I didnt changed anything with my sensors. It was a bit harsh because the spacer wasnt just right, but it could have been fine tuned and been a very workable setup.

 

[wingysataday]

I have been thinking about rigging up a switch that would allow me to turn the air compressor system on/off when towing. Not sure how I will do this yet but my brain has been working. Any ideas?

 

[THeGeNTLeMaN]

Run a bypass to the sensor ?

 

[ChiTown]

Kill the stock ride height computer and wire the switch to the relay under the hood, eliminate the stock air reservoir and lines and plumb the air lift lines directly to the compressor.

 

[wingysataday]

Chi, would that kill the auto level function?

 

[ChiTown]

Yes but it will give you manual control of the compressor.

 

[wingysataday]

I wonder how I would deflate the bags?

 

[ChiTown]

Put a bleed solenoid in the air line

 

[THeGeNTLeMaN]

Chi, would that kill the auto level function?

if you just control the sensor with an on off switch it would self level ... just get you sensor set right

 

[SouthernSS]

just get the sensor spacing right and it'll do the rest. You'll lose the ability to go up and down but you'll retain load leveling, which is what I think you want.

 

[THeGeNTLeMaN]

just get the sensor spacing right and it'll do the rest. You'll lose the ability to go up and down but you'll retain load leveling, which is what I think you want.

right thats what i meant ... and if you didnt want it all the time ... hook an on/off switch to the sensor

 

[wingysataday]

I like it southern SS/Gentleman, exactly. so If I just throw a switch between the sensor it will only kick the system on when I turn the switch on? I only want the bags filled when towing or heavy loads. You guys are great!

 

[ChiTown]

If you keep the stock system you'll run into the same issue with deflation