tire pressure question

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velocityboy
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tire pressure question

Post by velocityboy » Tue Aug 17, 2010 11:02 am

This may seem like a silly question, but what the heck is the specified tire pressure for the XR? It has stock tires and rims. I looked on the door sticker- where one normally finds this info- but couldn't find anything on it abt psi.
--Patrick

89 Merkur XR4Ti (daily driver)
88 Chrysler Conquest TSi (currently out of commission thanks to anonymous s.o.b. hit and run)
78 Ford F-250 Ranger (propane conversion & all around cream puff)

Ed Lijewski
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Post by Ed Lijewski » Tue Aug 17, 2010 1:21 pm

33 lbs.

YMMV 8)
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velocityboy
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Post by velocityboy » Tue Aug 17, 2010 1:25 pm

Thanks!
--Patrick

89 Merkur XR4Ti (daily driver)
88 Chrysler Conquest TSi (currently out of commission thanks to anonymous s.o.b. hit and run)
78 Ford F-250 Ranger (propane conversion & all around cream puff)

alexob53
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Re: tire pressure question

Post by alexob53 » Thu Oct 06, 2016 12:55 pm

Sorry to bring up an old post, but the factory sticker in my door jamb says 26 psi. I find this way too low and always inflate to around 33-35, however I just thought I would share this interesting information. I have an early 88 with 15" spatulas.
Last edited by alexob53 on Sat Oct 08, 2016 2:34 am, edited 1 time in total.
88 Merkur XR4Ti manual
90 Chrysler TC by Maserati 16V
00 Mazda MX-5 Miata LS 5-speed
01 Dodge Ram 2500 5.9 Cummins 5-speed
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my8950
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Re: tire pressure question

Post by my8950 » Thu Oct 06, 2016 3:04 pm

Look on the tire

Ed Lijewski
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Re: tire pressure question

Post by Ed Lijewski » Thu Oct 06, 2016 3:11 pm

^^ :headbang What does your tire say ...?

YMMV ;)
Descartes: "Cogito Ergo Sum"
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John Brennan
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Re: tire pressure question

Post by John Brennan » Thu Oct 06, 2016 3:13 pm

Tire will give you the maximum, not what the manufacturer recommends for the car. If your '88 came with Spatulas, it's not a "Late '88." My first XR was a late-'88 I got brand-new, and it had mesh... basically, everything the '89's had except the cooling system revisions.
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Re: tire pressure question

Post by duncan1437 » Fri Oct 07, 2016 1:26 pm

i've always kept mine at the factory spec...26 lbs...though it seems low compared to my other cars.

the mustang svo was 28 lbs front and rear

https://lmr.com/item/OS-DF1155/84-85-Mu ... sure-Decal

Image

a bit puzzling....

my8950
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Re: tire pressure question

Post by my8950 » Fri Oct 07, 2016 2:04 pm

Global warming, maybe the air isn't a dense as it used to be 30 yrs ago...

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John Brennan
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Re: tire pressure question

Post by John Brennan » Fri Oct 07, 2016 3:05 pm

It's a ride/performance compromise. Most modern tires are lower profile, and lower volume, so they have higher pressures. My Fiesta ST calls for 39 Front, 36 Rear, for 205/40 17 tires. Like Ed, I keep my 50-series tires on my XR at about 33 PSI for daily driving.
This is my car, and these are my people!
1989 XR4Ti 5-Speed
2001 BMW Z3 3.0 5-Speed
2015 Fiesta ST 6-Speed
2015 Edge 3.5 V6 Auto/Paddles

Choochoochoo
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Re: tire pressure question

Post by Choochoochoo » Fri Oct 07, 2016 9:24 pm

Running a stock sized 15, I just go with 32 front and rear. It's an easy number to remember.
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alexob53
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Re: tire pressure question

Post by alexob53 » Sat Oct 08, 2016 2:34 am

John Brennan wrote:Tire will give you the maximum, not what the manufacturer recommends for the car. If your '88 came with Spatulas, it's not a "Late '88." My first XR was a late-'88 I got brand-new, and it had mesh... basically, everything the '89's had except the cooling system revisions.
Yes, sorry I mean early 88! My bad!
88 Merkur XR4Ti manual
90 Chrysler TC by Maserati 16V
00 Mazda MX-5 Miata LS 5-speed
01 Dodge Ram 2500 5.9 Cummins 5-speed
08 Smart Fortwo
08 BMW 135i Cabriolet

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