Tire Pressure

[Mark Jablonski]

I run Excelsior 450 x 19 tyres (Dunlop copy)on my TC and use 30 psi front and rear. I found the steering too heavy and too much oversteer with 24 on the front (Bishop box and no wedges. I'd read a comment that with these pressures (30 psi) handling was "interesting" in the wet. I went on a very wet rally last weekend and had no problems even when hitting the anchors quite hard. An article in the Octagon Car Club Bulletin suggested that reducing rear pressure with respect to front improved oversteer (which is what I've found). Mark Jablonski Melbourne Australia

[DougPulver@aol.com]

A customer came into my friends shop yesterday with his TC. He has 16" wheels and the Dunlop tires looked "low". I checked the tire pressure and it was 16 pounds on all four tires. I know we have had this discussion several times in the past and the general consensus seemed to be that tire pressure between 26 - 30 pounds was OK. Is that still a good rule of thumb for the tires on 16" wheels? Doug Pulver TC 5850 (with 6 new studs in the RH bearing carrier - one of which is now spinning as I tighten up the brake drum holding nut - aaaaaarrrrrrgggghghhhhhhh!) San Diego, CA [Non-text portions of this message have been removed]

[Paroor]

Dear Dog Pulver, Most of the tyres do have a recommendation of air pressure for the normal load conditions casted on the side wall where you can also read the production date of the tyre. Madhu -----Urspr ngliche Nachricht----- Von: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com]Im Auftrag von DougPulver@aol.com Gesendet: Montag, 13. Juni 2005 01:37 An: mg-tabc@yahoogroups.com Betreff: [mg-tabc] Tire Pressure A customer came into my friends shop yesterday with his TC. He has 16" wheels and the Dunlop tires looked "low". I checked the tire pressure and it was 16 pounds on all four tires. I know we have had this discussion several times in the past and the general consensus seemed to be that tire pressure between 26 - 30 pounds was OK. Is that still a good rule of thumb for the tires on 16" wheels? Doug Pulver TC 5850 (with 6 new studs in the RH bearing carrier - one of which is now spinning as I tighten up the brake drum holding nut - aaaaaarrrrrrgggghghhhhhhh!) San Diego, CA

[Leinen, Robert]

Madhu: Although well intended, your advice is incorrect. The tire pressure listed on the sidewall of any tire is the maximum pressure for that particular tire, as determined by the manufacturer, regardless of what vehicle it is mounted on. As you are aware, one tire can fit many different vehicles. Each vehicle will likely require a different tire pressure due to many factors, weight, suspension, shocks, load, etc. The maximum pressure on the sidewall is typically somewhere above 40 pounds. That much pressure would cause serious ride, handling and braking problems in most cars. Bob Leinen Deputy Director of Public Works City of Dearborn 2951 Greenfield Dearborn, MI 48120 Ph: (313) 943-2073 Fax: (313) 943-2067 E-mail: rleinen@ci.dearborn.mi.us -----Original Message----- From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] On Behalf Of Paroor Sent: Monday, June 13, 2005 3:13 AM To: DougPulver@aol.com; mg-tabc@yahoogroups.com Subject: AW: [mg-tabc] Tire Pressure Dear Dog Pulver, Most of the tyres do have a recommendation of air pressure for the normal load conditions casted on the side wall where you can also read the production date of the tyre. Madhu -----Urspr ngliche Nachricht----- Von: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com]Im Auftrag von DougPulver@aol.com Gesendet: Montag, 13. Juni 2005 01:37 An: mg-tabc@yahoogroups.com Betreff: [mg-tabc] Tire Pressure A customer came into my friends shop yesterday with his TC. He has 16" wheels and the Dunlop tires looked "low". I checked the tire pressure and it was 16 pounds on all four tires. I know we have had this discussion several times in the past and the general consensus seemed to be that tire pressure between 26 - 30 pounds was OK. Is that still a good rule of thumb for the tires on 16" wheels? Doug Pulver TC 5850 (with 6 new studs in the RH bearing carrier - one of which is now spinning as I tighten up the brake drum holding nut - aaaaaarrrrrrgggghghhhhhhh!) San Diego, CA Yahoo! Groups Links

[Paroor]

Dear Bob Leinen, Thanks for the advise. I normally used the recomonded pressure on the tyre or very often on the fuel tank cover. ( not on TC) But depending on the load and out side temperature varied a one or two pounds. I always watched the tires how they wear out. If the wear is more on the side then I put more pressure. If the wear is more in the middle then I reduced the pressure a bit. This is my experience from other cars. My MG TC is not yet on the road. So I do not have any right to discuss with others. Thanks for the advise. Madhu -----Urspr ngliche Nachricht----- Von: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com]Im Auftrag von Leinen, Robert Gesendet: Montag, 13. Juni 2005 16:17 An: Paroor; DougPulver@aol.com; mg-tabc@yahoogroups.com Betreff: RE: [mg-tabc] Tire Pressure Madhu: Although well intended, your advice is incorrect. The tire pressure listed on the sidewall of any tire is the maximum pressure for that particular tire, as determined by the manufacturer, regardless of what vehicle it is mounted on. As you are aware, one tire can fit many different vehicles. Each vehicle will likely require a different tire pressure due to many factors, weight, suspension, shocks, load, etc. The maximum pressure on the sidewall is typically somewhere above 40 pounds. That much pressure would cause serious ride, handling and braking problems in most cars. Bob Leinen Deputy Director of Public Works City of Dearborn 2951 Greenfield Dearborn, MI 48120 Ph: (313) 943-2073 Fax: (313) 943-2067 E-mail: rleinen@ci.dearborn.mi.us

[billsoquel]

group, I read on this sight, 30 pounds, and I tried it and the car handle much better. Have dunlops, almost worn out at 8,000 - 10,000 miles. I am so spoiled with radials. Are there any radials that fit and w ork on the 19 inch TC rim. My son suggested motor cycle tire, but their foot print is very small. Or 15-16 inch spoke with radials. ride may be better, but the "look" is gone. Bill Webb TC 3338 [Non-text portions of this message have been removed]

[David Phillips]

Bill, I would be vary careful before I considered fitting any radial tire to the 19" TC wheel. The chassis was not designed for the extra traction and stick in the corners the radial tire would provide. You may find that your suspension is torn from the mounting points due to the added stresses. Dave Phillips billsoquel billsoquel@comcast.net> wrote: group, I read on this sight, 30 pounds, and I tried it and the car handle much better. Have dunlops, almost worn out at 8,000 - 10,000 miles. I am so spoiled with radials. Are there any radials that fit and w ork on the 19 inch TC rim. My son suggested motor cycle tire, but their foot print is very small. Or 15-16 inch spoke with radials. ride may be better, but the "look" is gone. Bill Webb TC 3338 [Non-text portions of this message have been removed] Yahoo! Groups Links --------------------------------- Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. [Non-text portions of this message have been removed]

[Roger Furneaux]

hi Bill - don't even think about radials!!! None available for 19" as far as I know, and those who have tried 16" say that the wheel bearings are almost ripped off the axle by the extra grip so stick with std. tyres and let the car slide, as it was designed to do... Happy MotorinG ! TCRoger

> > I read on this sight, 30 pounds, and I tried it and the car handle much > better. Have dunlops, almost worn out at 8,000 - 10,000 miles. I am so > spoiled with radials. Are there any radials that fit and w ork on the 19 > inch TC rim. My son suggested motor cycle tire, but their foot print is > very small. > > Or 15-16 inch spoke with radials. ride may be better, but the "look" is > gone. > > Bill Webb > TC 3338

[David Lodge]

I'll second that Roger! The PO fitted Conti radials to 48 spoke wires on the big Healey. First excursion and several disturbing rear-end clunk-twangs later, the car was bucking like a bronco and several back wheel spokes were forming their own swirly patterns in the air! I know the Healey is twice the engine size but the TC wheels are a bigger diameter so..............................! Regards, David Lodge, in rainy (for a chamge) Vancouver --- Roger Furneaux roger.46tc@virgin.net> wrote:

> hi Bill - don't even think about radials!!! None > available for 19" as far as > I know, and those who have tried 16" say that the > wheel bearings are almost > ripped off the axle by the extra grip so stick > with std. tyres and let > the car slide, as it was designed to do... > > Happy MotorinG ! > > TCRoger > > > > > I read on this sight, 30 pounds, and I tried it > and the car handle much > > better. Have dunlops, almost worn out at 8,000 - > 10,000 miles. I am so > > spoiled with radials. Are there any radials that > fit and w ork on the 19 > > inch TC rim. My son suggested motor cycle tire, > but their foot print is > > very small. > > > > Or 15-16 inch spoke with radials. ride may be > better, but the "look" is > > gone. > > > > Bill Webb > > TC 3338 > > >

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[squeaky_isabella]

To the comfort seekers among us, The brown book states that Dunlop prescribes tire pressures of 24 psi front and 26 psi rear for the 450-19. I'm presntly suffering from a bad back and as is well known the TC is not the smootest ride in town. Does anyone have a recommendation for lowering the pressure to improve the ride quality without compromising safety. A lower speed would be acceptable. Bjorn TC 7773 Silverton, Oregon