Thread: Replacing SRL with Panhard bar

@jagy

^^ The fronts are 0.75:1. The rears however, may be different.

x2.
The panhard bar needs to be as long as possible to minimize the arc of travel as the suspension moves up and down. The larger the arc, the more the side motion that occurs between the axle and the body. Also, if the bar is not horizontal at static rest, the car will react differently when turning right or left. Most of the production cars (of old) that used panhard bars had rubber bushings on the ends to "soften" the action.
2J does not have a kit. There is significant welding involved to the frame and the axle.

Rears are more direct. MacPherson strut usually has about 0.96:1 motion ratio, which is much closer to 1:1. Our rear beams are closer to 1:1 too, but far from MacPherson strut's.

What we are talking about is matching spring rates front to rear. With our rear beams you want stiffer rears to induce oversteer (because more weight will stay on the rear tires).

Also you want stiffer springs in rear for our specific SRL link beams. This is because of how SRL is implemented by Nissan. When you lower the car the beam shifts to the passenger side. This reduces the amount of movement that is available in the flex bushing (the one that sits closest to the passenger side on the beam). Which means when you go into a turn there is less available movement before you hit the metal of the SRL link, which gives it infinite spring rates and causes snap oversteer. The way to combat is, not overlower the rear, and use stiff rear springs to reduce the amount of movement there is in the link.

The Dog II
Project Nissan Sentra Spec-V part 5; Lessons in Geometry

this is what Mike Kojima did

My favorite part of the Kojima article, "The Nissan rear suspension is very cool, for a wheelbarrow."

I like what I am reading, here. All sound stuff that can help a lot of other folks.

not really as long as possible, it's preferred to mount them the same distant as the shocks.

Yup, That what all the information states about the "correct" way to setup a pnhard bar. look at 2Js and Mike's dog car. both end terminate inline with the top of the shocks.

So I should try to run 550 to 600lb up front instead of the 500 I was planning on. Maybe get quciker response and might be better with some real tires.

Ok, thanks for explanation.

What would you suggest to run on P11 (weight 1250kg aprox. which is lighter than US model) for daily driving with Bilstein B6? I thought 5/4kg would be a good choice.

I have a jdm P11 and with the teins stock springs found it to be a nice ride imo 7/6 kg. and I personally think any softer like what you suggest would have issues if you are looking for a nice lowered look. depend how low you want to go.