EVO Vs. STi Handling
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From: Arlington Heights, IL
Great thread!
I rode in and drove Lawrences car at Autobahn North course yesterday. Car feels great and the Robi springs where not too harsh but controlled body roll much better than stock. With the new alignment, bump steer kit, front RCA, and our trailing arm bushings the car is much more fun on track and you can drive the car on a tighter line with more confidence.
Alignment specs?
for stock suspension I'd go with the following,
Front Toe: -1/16" out
Front camber: as much as you can go! (2deg negative is about all you'll get)
Rear Toe: zero (bump steer kit will maintain this geometry throughout suspension compression, otherwise it will toe in pretty badly)
Rear camber: 1 to 1.2deg negative.
If you have camber plates up front, then I'd go up to 2.5 deg for the street/track and even more for more track oriented cars, 3-4 deg negative.
I rode in and drove Lawrences car at Autobahn North course yesterday. Car feels great and the Robi springs where not too harsh but controlled body roll much better than stock. With the new alignment, bump steer kit, front RCA, and our trailing arm bushings the car is much more fun on track and you can drive the car on a tighter line with more confidence.
Alignment specs?
for stock suspension I'd go with the following,
Front Toe: -1/16" out
Front camber: as much as you can go! (2deg negative is about all you'll get)
Rear Toe: zero (bump steer kit will maintain this geometry throughout suspension compression, otherwise it will toe in pretty badly)
Rear camber: 1 to 1.2deg negative.
If you have camber plates up front, then I'd go up to 2.5 deg for the street/track and even more for more track oriented cars, 3-4 deg negative.
Luda,
I kinda agree.
The fist step is to decide what you'll be doing with the car.
Fixing the geometry is a must IMHO. Its an EZ way of make the car work better.
But I don’t have any reason to replace the front diff. The rear diff maybe.
...
IMHO “must haves” for any lowered/trackday/street evo:
Whiteline rear bumpsteer kit
Whiteline front R/C kit
AMS rear trailing arm bushings
And a good alighnment
Motul 600
PFC 97’s
Ams Brake Duct kit
I kinda agree.
The fist step is to decide what you'll be doing with the car.
Fixing the geometry is a must IMHO. Its an EZ way of make the car work better.
But I don’t have any reason to replace the front diff. The rear diff maybe.
...
IMHO “must haves” for any lowered/trackday/street evo:
Whiteline rear bumpsteer kit
Whiteline front R/C kit
AMS rear trailing arm bushings
And a good alighnment
Motul 600
PFC 97’s
Ams Brake Duct kit
The reason I list the front LSD is because the '03 Evos don't have one. We have an open front diff, ugh
From my one track day with the PFC 97's, I'm not so sure that I am all that happy with them.
I run on the stock Advans and it is WAY too easy to lock up ... err, kick in the ABS with those pads. They might start becoming more appropriate on R compounds, but seem too aggressive for street tires. I may give them another chance when I run the full Autobahn track again in August, or I may go with another member's advice and try a set of Pagid Yellows (RS29 compound).
l8r)
Please take no offense,
Blame your foot not the pad. You're probably just braking too late and slamming on the pedal. Try to at least to train yourself to not slam onto the pedal (same goes for the gas). If you can do this, you can actually apply much greater psi on the pedal after you ease into it.
I did not have one lock up and drove almost every session and I am VERY happy with these pads. The stopping power is awesome. Im sure anyone who I took for a ride would agree.
Give them another shot, they really are a great pad. Otherwise, can I have em?
Blame your foot not the pad. You're probably just braking too late and slamming on the pedal. Try to at least to train yourself to not slam onto the pedal (same goes for the gas). If you can do this, you can actually apply much greater psi on the pedal after you ease into it.
I did not have one lock up and drove almost every session and I am VERY happy with these pads. The stopping power is awesome. Im sure anyone who I took for a ride would agree.
Give them another shot, they really are a great pad. Otherwise, can I have em?
No offense taken. I'll definitely give them another shot. I generally don't have a habit of slamming on the brakes, just a good, firm push. It just seems to me that with the Advans, the PFC97's are able to lock up the tires very easily, reducing the amount of pedal travel I have available to modulate the brakes. It'd be nice to be able to disable ABS to learn exactly where the brake threshold is with these pads...
l8r)
l8r)
Hmmmm,
Ok, so its not really locking up, ABS is getting in the way. Is there a fuse you can pull? Maybe this is your only problem.
I ran on Bridgestone REO1R's. Pretty similar to the Advan.
The 97's do have great initial bite, you almost can just rest your foot on the pedal and it scrubbs a lot of speed.
And next time, I wish we all could meet and introduce our selves to know who is who on these forums.
Maybe next time.
Ok, so its not really locking up, ABS is getting in the way. Is there a fuse you can pull? Maybe this is your only problem.
I ran on Bridgestone REO1R's. Pretty similar to the Advan.
The 97's do have great initial bite, you almost can just rest your foot on the pedal and it scrubbs a lot of speed.
And next time, I wish we all could meet and introduce our selves to know who is who on these forums.
Maybe next time.
If you look in the AMS trackday picture thread, there's a pic of me riding shotgun in the Elise - much to the chagrin of my wife who had to work, hehe. 
I drive a white Evo, you took a ride with me last year on the Autobahn North course.
l8r)

I drive a white Evo, you took a ride with me last year on the Autobahn North course.
l8r)
My girl owns an 06 STI so I drive my Evo and her STI quite often, I feel the Evo feels a lot more sensitive to steering inputs, and oversteers when I want it to, the STI under steers like nobody's business.
In local (Singapore) official time-attacks and shootouts at Sepang F1 circuit, the Evos consistently beat the STIs. We get JDM Evos and Euro STIs from the main dealers here. JDM Evos, of course, have the full works including S-AYC and ACD. The Euro STIs lack the DCCD, a critical deficiency.
We have a few parallel imported JDM STIs, they're practically even with the Evos. The JDM STI Spec Cs can smoke even Evo MRs.
Short version :
JDM STI Spec C > JDM Evo MR > JDM Evo > or = JDM STI > Euro STI > WRX
The FQ and RS specs are not included, it would be difficult to know where they fit. Plus we get an Evo MR RS version parallel imported here, that oughta rock even harder, but no data.
We have a few parallel imported JDM STIs, they're practically even with the Evos. The JDM STI Spec Cs can smoke even Evo MRs.
Short version :
JDM STI Spec C > JDM Evo MR > JDM Evo > or = JDM STI > Euro STI > WRX
The FQ and RS specs are not included, it would be difficult to know where they fit. Plus we get an Evo MR RS version parallel imported here, that oughta rock even harder, but no data.
Last edited by Turb0flat4; Jul 6, 2007 at 10:32 PM.




