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[Datsun 1200 encyclopedia]

Camber

(Difference between revisions)

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Category: Suspension Modifications

Revision as of 06:02, 9 May 2015
ddgonzal (Talk | contribs)
(->-VE Camber (Negative camber))
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Revision as of 01:08, 11 November 2015
ddgonzal (Talk | contribs)
(->-VE Camber (Negative camber))
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= -VE Camber (Negative camber) = = -VE Camber (Negative camber) =
-1.5 degrees negative camber can work well for racing or spirited driving. Large amounts of -VE are mainly for looks. For performance you want the tread parallel to the pavement. But since the car leans in corners, having some negative camber keeps the tire tread parallel to the pavement even when leaning.+1.5 degrees negative camber can work well for racing or spirited driving. Large amounts of -VE are mainly for looks -- for performance you want the tread parallel to the pavement. But since the car leans in corners, having some negative camber keeps the tire tread parallel to the pavement even when leaning.
--VE can be achieved in various ways:+= Front =
 +Datsun 1200 is designed with non-adjustable front suspension, so a simple [[Wheel alignment]] will not change the camber angle.
-* Slot the strut-top mounting points per the Nissan Competition suspension manual+-VE can be achieved in the front suspension with either method:
-[http://datsun1200.com/modules/myalbum/photo.php?lid=352 http://datsun1200.com/modules/myalbum/photos/thumbs/352.jpg][http://datsun1200.com/modules/myalbum/photo.php?lid=355 http://datsun1200.com/modules/myalbum/photos/thumbs/355.jpg] +* Move the top of the strut. Slot the strut-top mounting points per the Nissan Competition suspension manual
 +* Use adjustable Camber Tops
 + 
 +Alternatively, following methods increase the track, which may interfere with wide tyres and/or require flares
 +* Move the LCA mounting point in the crossmember
 +* Use a lengthened LCA, like the Nissan Competition units
 +* use a longer Ball Joint
 + 
 +As always after modifying the front suspension, the [[Toe-in]] must be re-adjusted to retain correct wheel alignment.
 + 
 +== Move the Strut Top ==
 +Slot the strut-top mounting points per the Nissan Competition suspension manual
 +<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=352 http://datsun1200.com/uploads/thumbs/352.jpg][http://datsun1200.com/modules/myalbum/photo.php?lid=355 http://datsun1200.com/uploads/thumbs/355.jpg]
<br>[http://datsun1200.com/modules/newbb/viewtopic.php?post_id=348521#forumpost348521 discussion] <br>[http://datsun1200.com/modules/newbb/viewtopic.php?post_id=348521#forumpost348521 discussion]
<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22690 http://datsun1200.com/uploads/thumbs/22690.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=22691 http://datsun1200.com/uploads/thumbs/22691.jpg] <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22690 http://datsun1200.com/uploads/thumbs/22690.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=22691 http://datsun1200.com/uploads/thumbs/22691.jpg]
Line 20: Line 33:
<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22689 http://datsun1200.com/uploads/thumbs/22689.jpg] <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22689 http://datsun1200.com/uploads/thumbs/22689.jpg]
-* Redrill or slot the crossmember mounting points+== Camber Tops ==
-[http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59ceb8ec5.jpg photo]+Install Aftermarket adjustable strut tops, which are adustable in the camber direction.
-<br><img size=240>http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59ceb8ec5.jpg</img>+
 + See main article: [[Camber Tops]]
-* Install Aftermarket [[adjustable strut tops]], which are adustable in one (camber) or two (camber & castor) dimensions:+<img size=400>http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59be0a461.jpg</img>
-[http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59be0a461.jpg photo]+
-<br><img size=240>http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59be0a461.jpg</img>+
-[http://datsun1200.com/modules/myalbum/photo.php?lid=1249 http://datsun1200.com/modules/myalbum/photos/thumbs/1249.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=1255 http://datsun1200.com/modules/myalbum/photos/thumbs/1255.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=1259 http://datsun1200.com/modules/myalbum/photos/thumbs/1259.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=2471 http://datsun1200.com/modules/myalbum/photos/thumbs/2471.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=9599 http://datsun1200.com/modules/myalbum/photos/thumbs/9599.jpg]+<blockquote><hr>adjustable strut tops ... only helps to get a little bit more camber and/or castor. To get [a large amount of] camber, you need to run smaller diameter springs, as well as the adjustable strut tops. With the standard springs, the available adjustment will be restricted inside the strut tower by the large original spring diameter.<hr></blockquote>
 +Small coilover type springs and adjustable strut tops are good for about 4.5 degree negative camber.
-* Use longer bottom arm. Or lengthen the arm, like this:+== Move the LCA ==
-[http://datsun1200.com/modules/myalbum/photo.php?lid=8030 http://datsun1200.com/modules/myalbum/photos/thumbs/8030.jpg]+Redrill or slot the crossmember mounting points for the [[Transverse_Link|LCA]]
-<br>NOTE: B310/Stanza LCA is same length as 1200/120Y/Ute/B310/A10. All the same length.+
 +<img size=400>http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59ceb8ec5.jpg</img> [http://datsun1200.com/uploads/newbb/thumbs/8427_4b0f59ceb8ec5.jpg full]
-* Another way to get a longer arm is to use a longer [[Ball Joint]]. The A10 and some B310 models use a longer ball joint which fixes the bottom of the strut further outboard (more neg. camber). 1200 Truck 1976-up has the steering arms to match the original 1200 struts to the newer ball joint. Use 1976-up LCA (B210, B310 or 1200 ute/truck) which the longer ball joint will bolt to.+== Lengthened LCA ==
-<br>[[Ball Joint Comparison|W50 balljoint]]: A10 (Violet/Stanza/Auster/510) and non-A12 B310 (Sunny/210)+Use longer [[Transverse_Link|bottom arm]]. Or lengthen the arm, like this:
-<br>[[H74]] balljoint: 1976-up 120Y/1976-up B120 (1200 ute)+<br>
 +<img size=400>http://datsun1200.com/uploads/photos/8030.jpg</img> [http://datsun1200.com/modules/myalbum/photo.php?lid=8030 album]
- See discussion [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=38164&forum=1 Negative Camber]+NOTE: B310/Stanza LCA is same length as 1200/120Y/Ute/B310/A10. All the same length.
-<blockquote><hr>adjustable strut tops ... only helps to get a little bit more camber and/or castor. To get [a large amount of] camber, you need to run smaller diameter springs, as well as the adjustable strut tops. With the standard springs, the available adjustment will be restricted inside the strut tower by the large original spring diameter.<hr></blockquote>+Nissan Competition sold lengthened control arms. See [[Racing_Suspension_System#B310]]
-Small coilover type springs and adjustable strut tops are good for about 4.5 degree negative camber.+== Longer Ball Joint ==
 +Another way to push the bottom of the tyres out is to use a longer Ball Joint. The A10 and some B310 models use a longer ball joint which fixes the bottom of the strut further outboard (more neg. camber). 1200 Truck 1976-up has the steering arms to match the original 1200 struts to the newer ball joint. Use 1976-up LCA (B210, B310 or 1200 ute/truck) which the longer ball joint will bolt to.
 + 
 + [[Ball Joint Comparison]]
 + A10 (Violet/Stanza/Auster/510) and non-A12 B310 (Sunny/210)
 + H74 balljoint: 1976-up 120Y/1976-up B120 (1200 ute)
 + 
 + See discussion [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=38164&forum=1 Negative Camber]
-== Rear Axle ==+= Rear Axle =
Negative camber can be achieved with the straight axles by cutting and welding. Negative camber can be achieved with the straight axles by cutting and welding.

Revision as of 01:08, 11 November 2015

Checking camber is part of Alignment for proper tyre wear or to change handling characteristics.

Contents

Overview

The stock 1200 suspension is non-adjustable for Camber. If the camber is out-of-specification, the factory recommends replacing parts. A good suspension man can sometimes bend the strut housing to correct for bad camber.

For upgrading to modern camber settings, there is no provision in the stock parts. Fitting custom adjustable parts is needed.

-VE Camber (Negative camber)

1.5 degrees negative camber can work well for racing or spirited driving. Large amounts of -VE are mainly for looks -- for performance you want the tread parallel to the pavement. But since the car leans in corners, having some negative camber keeps the tire tread parallel to the pavement even when leaning.

Front

Datsun 1200 is designed with non-adjustable front suspension, so a simple Wheel alignment will not change the camber angle.

-VE can be achieved in the front suspension with either method:

  • Move the top of the strut. Slot the strut-top mounting points per the Nissan Competition suspension manual
  • Use adjustable Camber Tops

Alternatively, following methods increase the track, which may interfere with wide tyres and/or require flares

  • Move the LCA mounting point in the crossmember
  • Use a lengthened LCA, like the Nissan Competition units
  • use a longer Ball Joint

As always after modifying the front suspension, the Toe-in must be re-adjusted to retain correct wheel alignment.

Move the Strut Top

Slot the strut-top mounting points per the Nissan Competition suspension manual
352.jpg355.jpg
discussion
22690.jpg 22691.jpg

N13/N14 strut tops
22689.jpg

Camber Tops

Install Aftermarket adjustable strut tops, which are adustable in the camber direction.

See main article: Camber Tops


adjustable strut tops ... only helps to get a little bit more camber and/or castor. To get [a large amount of] camber, you need to run smaller diameter springs, as well as the adjustable strut tops. With the standard springs, the available adjustment will be restricted inside the strut tower by the large original spring diameter.

Small coilover type springs and adjustable strut tops are good for about 4.5 degree negative camber.

Move the LCA

Redrill or slot the crossmember mounting points for the LCA

full

Lengthened LCA

Use longer bottom arm. Or lengthen the arm, like this:
album

NOTE: B310/Stanza LCA is same length as 1200/120Y/Ute/B310/A10. All the same length.

Nissan Competition sold lengthened control arms. See Racing_Suspension_System#B310

Longer Ball Joint

Another way to push the bottom of the tyres out is to use a longer Ball Joint. The A10 and some B310 models use a longer ball joint which fixes the bottom of the strut further outboard (more neg. camber). 1200 Truck 1976-up has the steering arms to match the original 1200 struts to the newer ball joint. Use 1976-up LCA (B210, B310 or 1200 ute/truck) which the longer ball joint will bolt to.

Ball Joint Comparison
A10 (Violet/Stanza/Auster/510) and non-A12 B310 (Sunny/210)
H74 balljoint: 1976-up 120Y/1976-up B120 (1200 ute)
See discussion Negative Camber

Rear Axle

Negative camber can be achieved with the straight axles by cutting and welding.

This axle has 2.5 degrees negative camber with reportedly no problem over three years of driving.
Discussion: 2.5 degree camber rear axle