dream track alignment?
 

If you could do any alignment and adjustment and tire wear wasn't an issue, what would you shoot for for the best performance on track?

I am new to the twins alignment...what I learned so far is that it depends on how much the car is dropped as rear keeps gaining negative camber under compression and front first gains and then loses negative camber at higher compression...softer spring rates and roll will make this front negative-to-positive behavior more pronounced. My drop is very small per Ohlins R&T recommendation, -20mm front and -15mm rear. My tires for track are Toyo Proxes RA-1 in 235/40R17 on 17x8 rims, and Toyo recommends running negative camber greater than -3! Per kind recommendation by @CSG Mike, my static camber for track will be set tomorrow at the alignment shop to -3.4F and -2.7R, which is considered quite aggressive. I believe that you need coilovers with front camber plates and also rear LCAs to get negative camber greater than -2.0. I also have Jackson Racing SC and a bunch of other bits that are track friendly. I signed up for 8 track days so far, first two coming up at the end of this month.

that is what i was aiming for as far as camber goes, trying to see how much caster i can get also.


still debating on buying from lca or not.

FYI, I have SPL Rear Lower Control Arms (LCA) like these: https://www.splparts.com/store/produ...hp?pid320.html

Specs front/rear.

Camber: -4 / -1.5
Toe: 1/16 out / 0
Caster: 7*


I'm running -3/-1.8 with 0 toe all around and stock caster (about 6) right now.

Keep in mind my setup is used for drifting so it will probably be quite different from most of everybody else's.

What would be the max negative camber at the rear wheels without the LCA?

I recently ordered my FA 500 coilovers with 9k/9k swift springs and I think I can drop about 1.25" without hurting the geometry, I wonder if I can get more than -2 at the rear tires..

This is 100% dependent on your setup.

I can give you a range that it'll probably fall into, but I can't give you anything specific without a LOT of data and some feedback from you on how your car drives.

your dream alignment should be dictated by your tires, talk to your tires (pyrometer) and they'll tell you what they want.

everything else is either personal preference (ie, making the car looser) or a compromise based on rules, or a compromise based on components and $$upgrades.

^^this

i also would like to know what would be the highest attainable camber in the rear with about 1.25-1.5" drop ( coilovers) without the rear aftermarket LCA parts

It's going to be around -2.x

awesome, thanks again :cheers:

What we do know is, you'll want more.

hmm, I will try -3 front and -2 rear for now and will upgrade to a LCA if I need more..

My rear camber is -2.5 on both sides, dropped on ST coilovers, with NO aftermarket rear arms/toe links etc).

I am dropped about 1.25"-1.5" front and rear(edit: This is confusing, I am currently dropped between 1.25 and 1.5" all around, I haven't measured it recently, but when I first installed the co's I shot for 1.25, but the way they settled etc the car is about 1.5" or so)

Is there a specific reason why you preferred different drop from front than rear?

How do you like the ST coilovers btw? Any track experience with them?

awe, my bad...I meant my drop was between 1.25 and 1.5, all around...I can't remember what it is exactly, I think I did 1.25, but it settled close to 1.5

I worded that in a confusing way haha.

I've had the coilovers on for about 6k miles now, no track yet(been a busy year haha) but for daily/aggressive canyon its been great.

No worries :thumbsup: what kind of spoiler is that btw?

Oh, and I'm also running 0 toe, if you were wondering. And my front camber is currently at -1.9L and -1.4R(max negative camber on the slotted holes on the ST coilovers) But I want to get camber bolts or top hats with adjustable camber plates in the near future, as I'd like to get my camber up front around -2.5 or -3

The spoiler is a cf duckbill from modbargains.

I know it depends on setup, track, tires and driver but i want to know how YOU would align it.

I will be running on street tires but will sometimes run on slicks, slicks will prefer more camber. As far as setup, my alignment will dictacte my setup if i need -3.5 in front and can't get over 2,8, i will buy parts to make it happen, simple as that.

We will do a lot of test and tune on the alignment, just wanted to know what to start with, i am pretty setup on -3,5 front and 2 or 3 in the rear, not sure. For caster, we will get as much as we can and toe we'll have to try depending on how the car drives but we will start at 0 everywhere.

I'm on Fortune coils with 6k and 7k springs with whiteline RLCA's. I went with -2F and -3R based on someones recommendations on here and my car feels very sticky in the turns. I havent got a chance to do a track day or autoX with it yet but I want to so I can see how much understeer is left. My car is also quite low so I should probably raise it up a bit.

I might be a little too low. Attachment 73966

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how much did you drop your car? you have an interesting camber setup, assuming you have the default spring setup (Fortune springs) any particular reason why you chose more negative camber in the rear tires? are you on OEM sways?

Eibach sways and everything white line makes. I chose this setup based of a buddy of mine who races his and so far I really like the sharp turn in and controllability. My car is probably too low but after my next race I may raise it up and change. I like a bit of oversteer.

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dream track alignment?
 

Quick update...my -3.4f/-2.7r worked very well on track, and I was set up a couple of cm lower than Ohlins spec. Had manageable oversteer at the limit on track, may also be due to pretty stiff Ohlins settings -4 clicks front and -5 clicks rear, next time will go with -6f/-7r.

Now have a new car with the same Ohlins but at their recommended -20mm drop front and -15mm drop rear and -3f/-2.5r camber with 1/16 toe in rear. You may want to zero out the toe, I just want to try this out. Will update this post with impressions after track days in early July. Car seems to drive a little better on the street with this new setup.

I suspect initial turn-in response is also more crisp at the recommended height.

Try changing the damping settings mid-session, so that you can compare the results back to back.

Do you have your LSD in yet?

dream track alignment?
 

I am at 700mi now with the new car so still not pushing it hard. Will try out different damper settings at the WGI track in early July...it's a fast and unforgiving track so I hope to get things right the first time around.

Car behaves very well on the street at Ohlins spec height and new camber. I think that I will lose some crispness in handling with spec height and less camber, but don't mind having it adjusted again until it's just right. I'll have camber adjusted twice per year for summer and winter anyway. JR SC behaves differently on the manual due to trannies and I like it even a little bit more on a manual. If only this shifter were a little less notchy...heavier Raceseng shift knob helps and hope mtech springs and reinforcements below the deck will help.

OSGiken is going in on 7/16...have to figure out more track days to test it out.

Thanks