Will lowering the front of my car anywhere between 6-13mm significantly affect my alignment, particularly toe setting?

Does the front toe-in or toe-out as ride height decreases? It is currently somewhere above RS height and I don't have a fancy wheel carriers or tie-rod setup.

I just want the stance to have a bit more rake, look more sporty.

 

 

Lowering will change both camber and toe-in

 

Ramon I went up 15mm from RS-5 to RS +10 and the car still drove straight and handled fine. It sure drove better though with a little more room for the coilovers to work. When I needed some other work done I asked them to check the alignment and it was a little off and they fixed it but I noticed no difference in drive. Maybe in tire life?

Edit I guess I should ad it was aligned not to long before I raised it and then again not too long after, both times at the place where your car is parked in front of in the pic.

 

I mean, the car is at -1.8 camber in the front, so any camber gain/loss should be acceptable. It's currently aligned to zero toe in front. If it toes-out a bit, that'll help turn-in. I don't know if I'd want it to toe-in however as I feel the steering is slow enough as-is.

 

I had raised my car a 1/4" at one point and it was enough difference in alignment that I could tell. To be honest, why wouldn't you get an alignment... $80-100 and you'll save your tires, or you could spend $500-800 in a couple months replacing your tires and STILL end up paying the $80-100 for an alignment. No brainer to me.

Also, lowering the car should make the toe go outward, but the negative camber that's naturally induced will also affect the toe-out two-fold.

Some people really like an aggressive alignment where there's a bit more toe-out in the front because it improves the car's turn-in and responsiveness, as mentioned, but it can also be really touchy on the highway or straight roads, which wouldn't exactly be desirable on a car that sees a lot of daily driving.

 

Ramon, 964 suspension geometry is nonlinear relative to drop/raise. It depends where you are dropping it from....

Paul Frere has charts of 964/993 suspension geometry in his book, here's link to Bill posting scans:

http://forums.pelicanparts.com/porsc...ml#post3845099




You can see camber is pretty much linear - more drop means more camber, front toe will stop increasing at certain drop and go reverse at severe drop (causing bump steer). Ideally you want to keep your toe curve at vertical during work loads - this will not induce bump steer.

Your car is already dropped about 20mm by your current setup, looking at charts above -20mm drop will not dramatically change much.



As for A/C. Just say "NO" , sweat and cool down with beer after you drive

Oleg.

 

I'm going to go ahead and say I really doubt lowering 1/4" to 1/2" will change alignment very much to really notice anything. I could be wrong though.... Every car is a little different.