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Old 05-23-2016, 11:10 PM   #1
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What PSI Are You Running On GY 614's

Hello All,

Just purchased a set of GY 614's for my Crusader 315rst. My loaded unit weights 11,500 and the 614's are overkill and costly but wanted the piece of mind of doing what I can to eliminate potential tire issues.

My question is for those of you with rigs that have a similar weight as mine (11,500) what psi are you running. I know the 614's call for 110 cold and I am aware of the inflation table. I am looking for your experiences with different psi and ride quality as well as abnormal tire wear.

Thanks for your input.
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Old 05-23-2016, 11:24 PM   #2
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I just pulled in from Arizona to U.P. of Michigan (2,500 miles) and kept the tire at max 80 psi with load range E 16" tires. 14,000 miles so far and no problems on Westlake tires.
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Old 05-24-2016, 08:58 AM   #3
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I keep mine at the maximum pressure, it says 110lbs on the tires and that's what I run. I have heard some people run at 90lbs and I have done that but it says on my yellow sticker to run at 110lbs and that's what I run.

I had Westlake tires on my 30RL Cedar Creek, I installed the TST 507 on the tires and I never had a problem. The new Cedar Creek I have now came from the factory with the Goodyears G614.


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Old 05-24-2016, 09:06 AM   #4
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I don't have G614 tires, but I do have tires that are an even higher load range. I run them at max PSI (125psi) with no ill effects.
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Old 05-24-2016, 12:58 PM   #5
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My tire dealer told me 80 and that is what I am running - so far no problems from Atlanta to Greenville to Myrtle Beach to Savannah. He said with this trailer, it might be bouncey if I ran 110.
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Old 05-24-2016, 05:33 PM   #6
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I have 614s mounted on original wheels for my Silverback 29rk, The wheels are only rated at 3050 lbs load and are 6 inch wide. No pressure rating on wheel. After 2 sets of tire failures on ST tires in 3 years I made a compromise as they failed when I was on the road at this time and high pressure wheels were not available. According to tire and wheel mfgs assn info this is ok even though GY recommends 6 1/2 wheels. Then I used GY614 tire inflation data to inflate to E rated pressure which is 80psi. The tire side wall deflection on turning and when leveling is superior in everyway to STs at 80 psi. Also installed TPMS system and this shows pressures going to low to mid 90s when on the road. I would appreciate good constructive feedback.
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Old 05-24-2016, 06:11 PM   #7
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How about letting me know how your tires are down the road. I plan to run mine like the yellow sticker says. I have heard some people say they run 90lbs in the tires. I don't know if I'm right or you are right. It says max pressure on my tires of 110lb. Whatever you are comfortable with. I have a TPMS that I trust


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Old 05-24-2016, 06:27 PM   #8
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I have been on the road for about 2000 miles. First impression after getting rid of the GY Marabombs was that the 614s rolling resistance seemed less. I checked cold pressure after a couple days and found them to be at 84 psi which is where they are now. I compared the tires visually when they were installed and these are totally different animals that the china bombs. I am really impressed so far.
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Old 05-24-2016, 06:29 PM   #9
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With a trailer, I suggest you run the MAX pressure molded on the tire sidewall that is associated with the MAX load. This will lower the Interply Shear forces that are trying to tear the belts off the body of the tires in every turn or corner movement like this



which can lead to this



You need to also confirm with individual tire measurements that you are not loading your tires to more than 85% (75% would be better) of the MAX load in static condition.

TPMS is also excellent insurance that you would not be depending on passing motorist to flag you down if/when you develop a leak.
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Old 05-24-2016, 06:36 PM   #10
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I really like the G614. I have to be honest I don't know how many miles I have on the tires but I would assume more than 5000 miles. I'm leaving on a trip to Alaska June the ninth, my next camper I hope is the Cedar Creek 36CKTS and if I can't put the Goodyears G614 on them I'll go with the Goodyears 17.5


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