1995 Mazda Miata built for SCCA autocross STS (STS2)

Suspension

 

Bone stock

 

Purchased October 2006 with 146K miles

2007 San Diego National Tour

Autox

Fontana Autox

 

Koni Race Shocks and Ground Control / Eibach Springs (rear)

800# springs in the front.  I am finally off the bumpstops without upper fender to tire contact.  Improved turn-in and rotation too. Front ride height is ~11 3/4".

 

700# Front springs / Racing Beat 1 1/8" hollow front sway bar / Moss end-links.

Plenty of travel.

Flyin' Miata Top Hat / 375# rear springs / No rear sway bar installed

350# or 375# 

Fatcat bumpstops (not pictured) installed on the rear. 

^^^Note the location of that zip tie on the Koni shaft (race yellow).  That means that I was internally bottoming or hydrolocking the rear shocks.

Old bumpstops. Yes, that is all I was using in the rear.

H&R 350# 6" race springs (rear)

 

Fatcat rear.

AWR end-links are too long.

 

Cut down end links are ~3/4" shorter than stock.

 

Single shear lower end link mount for modified rear sway bar.

 

Final version only has two adjustment holes. 

 

STS2 car works great in the wet!

 

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November 2009.  Alignment check reveals all is good.  A little more front toe out due to ride height change. Initial readings are without driver.  Final readings are with 170 lb driver.

Ride Height as measured form the hub center to bottom of fender: 11.5" front, 12.0" rear

Alignment 10-21-08

Front: -2.6 camber, 0 toe, ? caster.

Rear: -2.3 camber, 1/8 total toe in.

Previous aligment: circa November 2006

Front: -2.2 camber, 0 toe, ? caster.

Rear: -2.2 camber, 1/8 total toe in.