Lotus Elan

Tracking

PostPost by: john.p.clegg » Sat Nov 07, 2009 9:21 am

Dear All

With all this talk of adjustable A frames,I thought I'd look into the tracking for the Plus2 and this is what I'm assuming.....

Front track 54"
Rear track 55"
Wheelbase 96"

From the manual,front toe-in 0 to 3/16" in total measured at the wheel rims....
From another manual,rears toe in 0 to 3/16" each side....

So if we go for middle ground and assume 1/16" toe-in on both front and rear wheels we end up with what appears to be a Trapezoid which I think looks quite stable?

And my old method of measuring/checking wheel alignment with a piece of string may not be all that far from accurate?

If anyone out there has their old Trig Tables I'm sure it could be worked out more accurately

John :wink:
Attachments
tracking.jpg and
Trapezoid
User avatar
john.p.clegg
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 5688
Joined: 21 Sep 2003
Location: Manchester

PostPost by: bcmc33 » Sat Nov 07, 2009 10:34 am

John, my friend,

And your point is???? :?
Brian Clarke
(1972 Sprint 5 EFI)

Growing old is mandatory..........Growing up is optional
User avatar
bcmc33
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1847
Joined: 10 Apr 2006
Location: Aldridge, West Midlands, UK.

PostPost by: john.p.clegg » Sat Nov 07, 2009 12:40 pm

Brian (friend)
Don't really have one....just thought some mathematician may come up with more accurate figures,some people may want to set up their tracking with a piece of string,others may chirp in with "what a load of nonsense"...others may come to the same conclusion??

John :wink:
User avatar
john.p.clegg
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 5688
Joined: 21 Sep 2003
Location: Manchester

PostPost by: andyhodg » Mon Nov 09, 2009 2:50 pm

Hi Guys

If the wheels where aligned to a straight edge on a car with 55" rear track and 54" front track and a 96" wheel base you would get a rear toe in of a tad (2.5 thou) over 1/32" measured from the wheel centre to wheel rim compared to the car centre line and a front toe in of approx 1/16" again a tad over (+ 5 thou), measured wheel to wheel.

(Thats how I spend a boring five minutes during lunch!)

All the best Andy
User avatar
andyhodg
Third Gear
Third Gear
 
Posts: 351
Joined: 11 Oct 2005
Location: Birmingham England

PostPost by: john.p.clegg » Mon Nov 09, 2009 8:44 pm

Andy

Isn't " 1/32" measured from the wheel centre to wheel rim".....the same as..." 1/16" measured wheel to wheel."...?

John :wink:
User avatar
john.p.clegg
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 5688
Joined: 21 Sep 2003
Location: Manchester

PostPost by: andyhodg » Tue Nov 10, 2009 12:20 pm

John

Yes :o

I should really learn to read the small print. The trouble is I can't open photo attachments so I make do with the small photo on the post.

Regards

Andy
User avatar
andyhodg
Third Gear
Third Gear
 
Posts: 351
Joined: 11 Oct 2005
Location: Birmingham England

PostPost by: trw99 » Tue Nov 10, 2009 12:32 pm

John

For added accuracy, use a reel of teeth floss, not string! It does actually pull straighter and tighter too.

Tim
User avatar
trw99
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2830
Joined: 31 Dec 2003
Location: Essex/Herts border, UK

PostPost by: john.p.clegg » Tue Nov 10, 2009 3:30 pm

Tim

......too late,have my fishing line out...

John :wink:
User avatar
john.p.clegg
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 5688
Joined: 21 Sep 2003
Location: Manchester

Total Online:

Users browsing this forum: No registered users and 7 guests