SPLNDID.....what is your rear toe in at for each side?

i am going to go alittle more agressive with a new rear alignment from what i am running now of -2 camber.....2mm toe in each side. My rear still feels a little loose under hard track use.

i'm going to set the rear at -2.5 and go further in on the toe....mabey to 4mm....i am just alittle worried about tire wear now.....how are yours wearing....THANKS

 

for the front caster 6.75....is it measured in degrees? And how is the tire wear with the UK spec vs. US spec? Would it be worth it to do this for the occassional track use (read: mostly daily driving), or would the tires wear out much faster and not be worth it?

 

... honestly, I have a conversion problem between mm and inches right now. I could look it up... but I'm lazy.
I asked Cesar to decrease the TOTAL thrust angle of the rear toe-in by 1/2. The reason is that my car is lowered and stiffened probably to the max since I am running with KW Variant-3s on all four corners and I don't detect any advantage to having much of a toe-in. Some say the best setup for exiting corners is to have greater toe-in at the rear, but I just don't sense the advantage. Right now, the car handles excellently. The rear end doesn't kick out - instead, when the car looses traction, it feels as if all four loose it and the car doesn't "snap" - like stock settings.
Before, my car would "snap" and I'd lose it because it happened so fast. Now the traction is dialed-in so perfectly that all four corners lose it at the same time and I can more easily control the slide - versus a "snap spin".
The car is so well setup now. I love it!
Look... I'm no expert on setups. I just go with what works for me. The combination of a stiffer, lower suspension, greater camber and caster with no toe in the front and the least toe in the rear seems to be magical for my car.
If I remember right, Cesar set my rear toe-in thrust angle to be a 1/8" instead of the Euro 1/4".
Since it is Summer and we aren't tracking, my theory is that I'll preserve my rear tires a bit more than last year. But for the track, the settings are supurb.
Make sense?

CB
W

 

For tracking, the UK settings are WELL WORTH IT if you are a weekend road-coarse tracker. I have to say that the Euro settings - along with HK stiffer springs was by far the best money I ever spent for track handling. I later went with even stiffer KW Variant 3s and it got even better! (But expensive!).
HR springs will cost you about 250 new, and an alignment, (from Cesar at Earnhardt's), will cost about 100 bones. You'll notice a dramatic improvement in handling even with street tires! However, the Euro alignment will wear out your street tires a lot faster because your car is not leaning from the agressive lines taken on the track - and your insides will wear fast.
In summary, if you are road-coarsing your car on weekends, it is well worth the trade-off. You'll notice that your car will grip better in corners.
The last alignment adjustment made to SPLNDID was increasing the caster. I wanted to fix the under stearing in corners running on 205 track fronts. The caster was increased to 7.5 degrees and I swear that the understeer was greatly reduced!

My current configuration is running 245s all around with RA1s. I also have a wing to provide downforce at the rear. This along with the KW Variant 3's set at near max stiff for the front and medium for the rear and my modified Euro alignment provides the absolute best handling I have ever experienced for the road course.
However, I am NOT convinced that 245s are the way to go all around.
From what I know now, I'd like to see 225s up front and 255s in the rear with the extended caster setting. Bet you a buck that with a stiff suspension and lowered that the combination would be the shit.
It is all debatable...

CB

 

i don't know the alt + whatever combo on the keypad for the deg sign to show, so i just put 6.75'

my apologies to our southern neighbours who uses inches and feet. Never occurred to me that it can read as 6.75' (inch)

cheers

edit: ooops..forgot to put in the fact that it is 6.75 DEGREE lol

 

... GEICO Caveman says ...
uh... WHAT?
Frankly... I don't know how the thrust angle is measured in inches or degrees. I just asked for the rear toe-in total thrust angle to be decreased by half from what it was set previously from the Euro. The car seems to like it. Hopefully, my street rear tires will last just a bit longer as a result. Not sure yet.
I just bought a set of BF Goodrich tires. Love 'Em! Much better than the Yokohama ES-100s I bought a couple of years ago to replace the absolutely splendid stock Potenzas. I tore the crap out of the Potenzas on the street and track. Now, I've separated duties and have a street set and a track set. Track set is Toyo RA1s... lovely stickiness, and for the road driving I've got some rain grooves and great ride provided by the BFsters.
Very happy with the dual setup.

 

that's degrees. I'm in the UK, and my geo is mostly UK spec, although I reduced the caster to 5.5 degrees. From the factory my MY05 (which in the UK is a AP1/AP2 hybrid ie AP1 engine, everything else is AP2 ie spring rates, bump steer etc)

Overall it's more stable on the road. My rear came from the factory with 0 toe! Which whilst fun, wasn't the quickest set up. The spec isn't increasing tyre wear noticably either. In fact I'm more likely to wear the tyre across the tread, rather than the inner shoulder. Although I push the car HARD on track. My car is stock otherwise.

 

nice, thanks for your input!

 

...
Yeah, do the UK alignment - final answer. You won't regret it.

 

Full details of all THREE UK alignments are in the UK FAQ

https://www.s2ki.com/forums/index.php?showtopic=301506