Tonight on Grassroots Motorsports LIVE!: DIY Alignments at Home

Proper alignment is a key to good handling.

Tonight we’ll show you some simple tips for creating your own accurate string alignment setup and doing your alignments at home in your garage.

Join us live at 9pm eastern on Grassroots Motorsports Live! Presented by CRC Industries on the Grassroots Motorsports Facebook Page and YouTube Channel

Join Free Join our community to easily find more news.
Comments
View comments on the GRM forums
Stampie
Stampie UberDork
11/14/18 1:07 p.m.

In reply to JG Pasterjak :

Of course you do it 6 weeks after it kicked our behind getting ready for the Challenge.  I'll be watching cause I didn't like getting my behind kicked.

AnthonyGS
AnthonyGS Reader
11/14/18 1:09 p.m.

YES!  I know my dad used to do this very thing in his racing days, but it isn't a skill I paid enough attention too in my early years.

Can we get a mig welding for newbies sometime in the near future?  Advice on equipment, how to practice, a few demonstrations (a lot like the TIG episode).  I liked the TIG episode ( I watch them on youtube later in the evening when the wife and kids are out), but I think I really need to start out with an entry level mig setup.  This is very pertinent to my $2019 challenge attempt.  If I'm going to waste anytime on an SN95 Mustang it is getting subframe connectors and torque box reinforcements even if it hits the budget sheet for $200 or so. 

 

 

JG Pasterjak
JG Pasterjak Production/Art Director
11/14/18 1:39 p.m.
AnthonyGS said:

Can we get a mig welding for newbies sometime in the near future?  Advice on equipment, how to practice, a few demonstrations (a lot like the TIG episode). 

 

 

Yeah we can do that. Maybe we'll do MIG and flux core and stick one night.

I'll get it on our schedule. Thanks for the suggestion.

Dr. Hess
Dr. Hess MegaDork
11/14/18 2:15 p.m.

The Lotus Esprit shop manual has a very thorough DIY string alignment section.

NermalSnert
NermalSnert Reader
11/14/18 2:26 p.m.

Looking forward to this one!

Dusterbd13
Dusterbd13 MegaDork
11/14/18 2:33 p.m.

A way to one man check toe accurately is my struggle. And repeatable caster process. But camber is easy with my digital angle finder!

Hopefully i can stay awake for tonights episode. Or find a way to watch it after the fact. 

Dr. Hess
Dr. Hess MegaDork
11/14/18 2:47 p.m.

Years ago, HF sold a toe gauge.  It has a lever that pivots and measures in 1/64ths of an inch.  That's what I use for toe.  For camber, I use a Fastrax camber gauge.  I don't bother with castor.

David S. Wallens
David S. Wallens Editorial Director
11/14/18 7:55 p.m.

And just a bump since we go live in a few minutes. See everyone at 9 p.m. Eastern tonight.

David S. Wallens
David S. Wallens Editorial Director
11/14/18 7:57 p.m.
Stampie
Stampie UberDork
11/14/18 9:11 p.m.

I have a question, you measured hub face to string front and made them equal then measured rear and made it equal but how do you know you don't have a trapezoid string around the car? For example front track is different than rear?  I was told to extend the strings past the car front and rear and then make sure the total distance between the strings was the same front and rear in addition to the distance hub faces to string. 

GameboyRMH
GameboyRMH MegaDork
11/14/18 9:22 p.m.

^Good point, most production cars are not perfectly rectangular suspension-wise from the factory. When production-based race cars are built, they usually have a frame straightening done before work starts on them for this reason.

JG Pasterjak
JG Pasterjak Production/Art Director
11/14/18 9:28 p.m.
Stampie said:

I have a question, you measured hub face to string front and made them equal then measured rear and made it equal but how do you know you don't have a trapezoid string around the car? For example front track is different than rear?  I was told to extend the strings past the car front and rear and then make sure the total distance between the strings was the same front and rear in addition to the distance hub faces to string. 

I covered this part too fast, but I do that by cutting notches in both tubes from and rear at equal distances.Then run the string through the notches.  this keeps the string box square. Your distances from hub to string will be different front to rear, but if they're the same side to side the box is square with the car. The only place it might be screwed up is if the rear is laterally offset from the front, but if that's happening you probably have bigger issues.

Stampie
Stampie UberDork
11/14/18 9:34 p.m.

In reply to JG Pasterjak :

I now remember you saying that but I didn't get the why.  Thanks!

AnthonyGS
AnthonyGS Reader
11/14/18 10:01 p.m.

In reply to JG Pasterjak :

Or a Fox mustang with a quadrabind rear suspension....

Vigo
Vigo UltimaDork
11/15/18 9:19 a.m.

but if that's happening you probably have bigger issues.

Like you lowered a car with a stock track/panhard bar? Not that uncommon!  

Robbie
Robbie UltimaDork
11/15/18 9:26 a.m.
Vigo said:

but if that's happening you probably have bigger issues.

Like you lowered a car with a stock track/panhard bar? Not that uncommon!  

agreed! Once you line up the strings with the hub faces on each side, you could always check a few measurements to the pinch welds or frame to see if you are square with the car. 

Pete Gossett
Pete Gossett MegaDork
11/15/18 10:27 a.m.

Since nothing stays parallel on a Miata when you align it, I had to find the center of the car front & rear, then measure off it to set my strings. 

jkstill
jkstill New Reader
11/23/18 1:21 p.m.

Here's another method for string alignment.

Those mini camera mounts stayed tight for 10 days, even on the primered front bumper.

 

 

Our Preferred Partners
3fQOrpUnxgIraa8SejpByZulGdDeJiOB9zklQtNwXexWx2IhPDEFh2yql0dfun7N