In a later article (#12 of the Flying Tiger by Tim Suddard) on Strengthening
and Upgrading Our sunbeam Tiger's Chassis, the author refers to using
195/55R15 Dunlop Direzza Sport Z1 Star Spec tires. Whether those were the
same tires quoted as stopping in 160 feet (nee the 150 of expected
improvements with biasing) is to be determined. These tires would seemingly
not be accountable for such poor stopping performance unless I error in the
assumption of a compound not within the extreme of highest mileage and low
adhesion.
Rob
From: MWood24020@aol.com [mailto:MWood24020@aol.com]
Sent: Wednesday, June 19, 2013 10:54 PM
To: robertdhogan@gmail.com; tigers@autox.team.net
Subject: Re: [Tigers] Stopping Distance
I think you hit on the key: tires. Whether oem front caliper/rotor or
aftermarket, generating enough clamping force to exceed mechanical grip is
not a problem. I would guess the kit used included a proportioning valve, to
allow better balance, and perhaps had better modulation which is where any
improvement in stopping distance likely was found.
In a message dated 6/19/2013 7:43:02 P.M. Pacific Daylight Time,
robertdhogan@gmail.com writes:
In the process of scanning some Classic Motorsports articles on a Tiger
restoration, I noticed the author referring to the improved stopping
distance of the project Tiger as 150 feet from 60 to 0 mph after
installation of the Wilwood Engineering brake kit. Even the 124 foot 60-0
stopping distance of a heavier Nissan Sentra in a Motor trend test, as the
worst in its class, performs better than the quoted Tiger result.
I have yet to research the details or what tires, temperatures, surface
conditions or measurement accuracies were involved in the article's number.
Could anyone shed some light on whether Tiger stopping distance data exists
elsewhere in the plethora of recorded Tiger documents? The importance is
that a $1200+ Wilwood front brake kit addition hardly seems worthwhile if
the stopping performance isn't more remarkably improved than hauling a 2560
Lb. SunbeamTiger down from 60 mph in under 120 feet much less 150.
Rob
..1560
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