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Less brakes, more gas!
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When you measure total front toe Scrugs says straighten 1 wheel and take the difference of the other's front to back. So .25 Toe Out is a difference of -0.125" in front and 0.125" in rear. Why is this not called 0.125 toe out? When ever anyone says I have x" of toe in/out I am equating it to the 1 measurement of the distance in the front of the rim. So to me 0.25" Toe Out means that the front measurement is -0.25" and not -0.125"... Should I be dividing it by 2 when I set my toe to be the same?
Also, why bother straitening a wheel? It seems that you are setting your self up for having a 0" toe on 1 wheel and some other toe on the other wheel when your steering wheel is straight?!?!?! I gues you have to adjust the tirods after that to center it? Is that just to make the 'math' easier? You can't straighten a wheel in the rear so total toe in the rear will require math. Though it seems that Scrugs likes 0" toe in the rear. ... um... hehehe I personally dont like toe in the rear either ![]() ![]() ![]() ![]() ![]() -Michael
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![]() ![]() '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS |
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Flat Six
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BTW, here's a link to help all of us 'home alignment setters & checkers' to convert linear measures to degrees: Calculate Angle and Sides opposite, hypotenuse, adjacent of right angled triangle calculator And a couple of other links that I've found useful: Scruggs -- Home Alignment of Porsche Do-It-Yourself Alignment Quote:
Hope this helps Dale
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Dale 1985 Carrera 3.2 -- SOLD 2026 Jaguar F-Pace / 2025 Ford Bronco Sport |
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Less brakes, more gas!
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![]() -Michael
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![]() ![]() '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS |
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porsher
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When the car is in motion the total toe is split evenly between each front wheel, more or less. This is why the steering wheel may not be centered when the car is travelling in a straight line. If you steeing wheel is perfectly centered (in motion) adjust each tie rod exactly the same amount.
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86 911 Race Car, with a few 993 bits in the boiler room 79 928 Race Car 88 928 Becoming a Race Car |
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I JUST strung my Mini Cooper S a little while back when the person doing the alignment did not check or set the inflation in the tires. I set both tires exactly straight with the steering wheel straight. My thinking is I do not want any Toe out because I was always told that air pressure (Specially on a Rear Steer Car) forced the wheels outward. (On a Front Steer car not so much. The car runs straight with no pulling on a flat road.
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Made History at Daytona and Still one Fast Old Man! 1982 Porsche 911 SC & 2017 Honda Si |
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Less brakes, more gas!
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Note: the little porsche spec books spec total toe as a degree (0 deg) not a distance. I wonder if people got confused and thought 25' meant .25"... heheheh thats 25 minutes vs. 1/4 inch for the non-engineers...
-Michael
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![]() ![]() '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS Last edited by euro911sc; 12-03-2010 at 09:14 AM.. |
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Location: Peoples Republic of Long Beach, NY
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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You just gave me some news. I "Hope" that the fact that I take ALL of the Ball Joints (Tie rod ends. Lower Ball Joints) and install grease fittings that I Grease before I check the wheels.
I "wanted" to do this on the Mini, but on some of the Joints like the Inner Ball Joint, the lower Control Arm is Under the Bottom of the Ball Joint. So I took the Grease fitting Needle and went inbetween the Cups and the Shafts on every joint before I put them back together and pumped in some Good Molly Grease so that the Cups are now not Collasped but well rounded and can continue to supply new grease as movement takes place.
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Made History at Daytona and Still one Fast Old Man! 1982 Porsche 911 SC & 2017 Honda Si |
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