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Re: Overlooking the obvious

To: Chip19474@aol.com
Subject: Re: Overlooking the obvious
From: Mark Dickinson <amdickin@ucalgary.ca>
Date: Mon, 03 Apr 2000 11:39:04 -0600
Cc: jmcneal@ohms.com, spitfires@autox.team.net, triumphs@autox.team.net
References: <65.2dd0925.261a23b9@aol.com>


according to my shop manual tyre pressures in lbf/in^2 are as follows:
Model                        front    rear
__________________________
Mk I & II                    18      24
Mk III (Cross-ply)       21     24
Mk III (Radial)            21      26
Mk IV & 1500            21      26

Chip19474@aol.com wrote:

> In a message dated 00-04-01 21:14:31 EST, jmcneal@ohms.com writes:
>
> <<  I went around the car,
>  filling each one up to the suggested 36 pound maximum and took the car for
>  another spin around the block.  Not only is the scraping gone (duh!), I
>  almost felt like I had power steering!  The ride quality and handling both
>  were dramatically improved.   >>
>
> Jeff,
>
> Wow...36 pounds in each tire...sounds like a lot of air to me....what year/Mk
> Spit do you have?  My owner's manual ('70 Mk3) says 21 for the front; 26 for
> the rear for 155R13's.  I read somewhere that the difference in front-to-back
> tire pressures is critical to good handling in the earlier Spits because of
> the sway arm rear suspension.  I've been keeping 23 and 28 lbs respectively
> in 165R13's....am I underinflating for today's roads, conditions, tires?
>
> With 36 pounds in the front, I can understand the "power steering" feel!  Any
> of you hardy Spit owners care to comment?
>
> Chip
>
> Chip Krout
> '76 TR6 CF57822U (restoration underway)
> '70 Spit Mk3  FDU78512L (ready for summer)


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