Street freindly or best bump steer correction toe rod ends?

[pawa_k2001]

Looking at options of street friendly bump steering correction tie rod ends. Which are the highest quality built as in metals used, Teflon lined, etc.

[pawa_k2001]

Anyone? Looking at the VAC bump steer correction kit at the moment. Found that I can get boots over the exposed heim joints.

[pawa_k2001]

Decided to bite the bullet and ordered VAC bumpsteer correction kit, so far very happy after doing the calculations.

- 1.5mm toe-in at 1 5/8th inch compression.
- 1.5mm toe-out at 1 5/8th inch rebound.
- 40mm bumpsteer adjustment
- 0.30lbs weight savings
- Stock tie rod end had 6mm toe-in at 1 5/8th inch compression.

Now I need to source some boots since these will be street driven.

[eacmen]

sub'd for updates on your impressions of this.

[High.miles.big.smiles]

How much bumpsteer do these cars experience? I haven't noticed it in mine much and have never heard anyone racing these chassis to complain.


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[STAATS]

+1 following for the boots setup. I haven't found bump steer a huge issue yet but would be nice to correct it if possible. Basically all the kits are track only so I gave up but if there is a way to protect the heim joints and make it more street friendly than I am in... well i will add it to the list of things I need (read "want") to get when I get a job and some money again haha

[pawa_k2001]

The results are not what I expected and my fault for not thinking everything through. Because I did the 35mm bumpsteer correction, I now need to correct the roll center by 35mm but the only way to do that is by getting racing control arms at $1000+ for a pair. Back to the drawing board..

11.5": +6.2mm (toe-in) (0.087 degree of toe in per wheel)
12": +3.5mm
12.5": +1.9mm
13": +0.5mm
Static 13.5": 0mm
14": -0.6mm
14.5": -1.0mm
15": -1.0mm (0.014 degree of toe out per wheel)
15 3/8": -0.7mm(toe-out) (0.0098 degree of toe out per wheel)

11.5": -2.5mm (toe-out) (0.035 degree of toe out per wheel)
12": -2.0mm (0.028 degree of toe out per wheel)
12.5": -2.0mm
13": -1.0mm
Static 13.5": 0mm
14": +1.0mm
14.5": +2.5mm
15": +3.5mm (0.049 degree of toe in per wheel)
15 3/8": +5mm(toe-in) (0.070 degree of toe in per wheel)

[eacmen]

Saw this piece posted on a fb group. No experience with it:

https://www.ebay.com/itm/253957405188

The ground control roll center kit for the e36 might be adaptable to e46, id give them a call.


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[pawa_k2001]

I have talked to them and SLR, those kits will fit a E46 3 series but not a E46 M3. E46 M3 needs the tubular control arms to make those work.

[STAATS]

Saw this piece posted on a fb group. No experience with it:

https://www.ebay.com/itm/253957405188

I saw these as well, I am interested by them but i do see that the LCA monoball that you have to replace with the one in their kit is not sealed... so other than saving a tonne of money you are still in a position where you have a unsealed and (unlike the TMS FCABs) is not even greasable so a bit of a stretch to say these are streetable yet... if they used a sealed monoball which i dont see why they cant in that particular setup then this would arguable be a great street bump steer correction solution.

[STAATS]

Maybe MRT could look at customising a heim joint seal to suit their kit so they can be sealed: https://sealsit.com/product-category...-rod-end-seal/ I am not desperate enough for the feature at this juncture nor of the financial position to buy their kit and test these out like i might have a year or so ago haha

[pawa_k2001]

Sent a message to MRT, their kit looks interesting and I can get seal kits to seal the bearings but I don't like that in order to correct the bumpsteer and roll center you have to substantially quicken the steering rack. I also sent a message to a Canadian company to see if there is any interest in building a complete aluminum spindle that corrects both bumpsteer and roll-center but uses the stock control arm and tie rod end, doubt anything will come out of it but one can try.

[eacmen]

Sent a message to MRT, their kit looks interesting and I can get seal kits to seal the bearings but I don't like that in order to correct the bumpsteer and roll center you have to substantially quicken the steering rack. I also sent a message to a Canadian company to see if there is any interest in building a complete aluminum spindle that corrects both bumpsteer and roll-center but uses the stock control arm and tie rod end, doubt anything will come out of it but one can try.

I know some analysis was done on the old forum on the csl spindle. Not sure if it might work in your use case though.


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[pawa_k2001]

If I remember correctly, CSL spindle gives more static camber or caster, the mounting points for control arm and tie rod end are the same. What we need is a drop spindle where the actual mounting points for control arm and tie rod end is lower.

I do have a Longarce bumpsteer gauge coming this week so I can make better measurements, if someone is willing to borrow me a CSL spindle, I can measure its bumpsteer and compare it to a regular spindle.

[STAATS]

Sent a message to MRT, their kit looks interesting and I can get seal kits to seal the bearings but I don't like that in order to correct the bumpsteer and roll center you have to substantially quicken the steering rack. I also sent a message to a Canadian company to see if there is any interest in building a complete aluminum spindle that corrects both bumpsteer and roll-center but uses the stock control arm and tie rod end, doubt anything will come out of it but one can try.

Yer I also wasn't super keen on it increasing the steering rate... surely MRT could make a kit where it moved the tie rod to the outer side instead of the inner side and that will slow the steering a touch. when paired with e ZCP/ZHP (or Purple Tag for us RHD folks) that may balance out nicely and correct bump steer... although sealing the joints is still a must.

Still interested to follow where this goes....