DeTomaso Mailing List: December 97, Message #90
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P.S. For the record I was just reminded that Junior's last blow-out wasn't due to tire failure but to hitting debris on the course...Thanks Frank (Mr. Know-it-all :-]. Junior also corrected that he only had "two" tire failures! Thanks guys for the corrections... > > WARNING: HIT THE DELETE KEY IF YOUR NOT INTERESTED IN GOING FAST AND ONLY > INTERESTED IN LOOKING FAST (CURT TOLD ME TO SAY THAT!) :-] > > Yo People, > I'm getting some good feedback from Junior Wilson, Dennis Quella, Pat > Mical and Frank Zambini on gears which I'll share with everyone (who's > interested) after I collect and sort it all out. > > Junior was the first and only person at Silver State in a Pantera to ever > "average" over 160MPH in a stock bodied Pantera and the only person in a > Pantera to ever finish first in the Unlimited Division finishing with a > average of 173 MPH where he reached top speeds of 192 MPH, again in a > stock bodied Pantera. > > Frank has raced and helped prepare Porsche and Ferrari at Road America, > the Hokenheim and LeMans in Europe. Dennis Q. of PPC has prepared cars > for Silver State and succesfully run his own race cars all over the > country. > > Pat Mical, no stranger to the right coast guys has run his twin turbo car > in at nearly 200mph at Pocono and has designed and fabricated alot of > race-proven components for not only Pantera but Ferrari and other racers. > Pat has had offers from some of the vendors to sell his stuff and has had > his designs copied so much that he now asks buyers of some of his > designed components to sign an agreement. You share the part with a > vendor without his authorization he sues YOU!! > > I'll share some of the info I have which many of you already know...but > many of you don't know. It's you's guys and gals I is trying to share > this info with...So don't share your descenting opinion with us Cap'n > Mike. :-] > > Ring and pinion gearset options are available as follows: > Ring Gear Final Ratio > 3.56 2.51 > 3.78 2.66 > 4.00 2.82 > 4.22* 2.98* > 4.62 3.26 > 5.25 3.70 > > *Stock Ring & Pinion > > **Junior and Pat Mical have custom 3.44 gears but these aren't > recommended for the street nor is the 3.56 unless your engine is pulling > 600hp+. However, the 3.78 and 4.00 gears are streetable and these guys > like these higher rinal ratio's and have recommended them in the past. > > It is easy to calculate MPH per 1000RPM. Just multiply the tire diameter > by the ring gear by the desired RPM's. It will give you a "paper" top > speed. For example, a change from the original 2.25-70R15 tire (27.3 > diameter of the 71/72 Pantera to the 3.45-35R15 tire (24.65 diameter) of > the GT4 and GT5 will reduce the top speed from 163 MPH to 147 MPH. > > Interestingly, at Silver State Junior had blow outs on both Pirelli and > Yokohama street tires. Once he finally went to Goodyear Eagle race tires > he never had another tire blow out. > > I'll also pass on how they feel about aerodynamics, safety and top end > speeds in a stock bodied Pantera and lots of other interesting sheeeit > about going fast. > > For instance if your preparing your car for Road America, Pocono, Silver > State or Pone Express it is importent that you don't put too much down > force <load> on the rear end at high speeds on a stock bodied Pantera. > Junior and Pat's research found that no tire available would hold up to > sustained high speeds above 180 mph on a open road with out reducing the > weight 1000 or more pounds. And adding the rear spoiler's only further > loaded/stressed/overheated the rear tires. Which was why after two tire > failures Junior finally went to a tube frame chassis and finally to a > one-off non-Pantera body called the "Purple People Eater". . .and he > still had another tire failure. > > Adding a rear spoiler further caused down force which further over > stressed the rear tires and further increased over loading (excessive > heat) the tires. > Stay tuned for more, > > Mad Dog, IRA > P.S. Junior is preparing to go after the current SCTA land speed record > at El Mirage for "over 7-litre sports cars" with his stock bodied > Pantera which I think he said stands at 238 MPH this coming Spring 98. > Unfortunately, it's the same weekend as our vegas get-together. I told > him to put his record run off until July so we can all see him again in > Vegas. > He's also said tomorrow is his last operation on his leg. This one takes > some bone from his hip and relocates it to his ankle using titanium bolts > and screws (jus' like Gary uses)! :-] And no, he hasn't changed his mind > about un-retiring from open road racing.