HAYS Performance Clutch & Flywheel

Frequently Asked Questions

What is the difference in the Borg & Beck, Diaphragm and Long-Style pressure plates?
A: The Diaphragm style is a multi-finger plate that takes less pedal pressure to release. The Borg & Beck and Long-Style are 3 finger plates that provide a higher clamping force.

What Hays flywheel do you recommend for my engine and what size Hays clutch can I use with it?
A: Hays offers stock size and weight as well as custom applications built to order.

Why can’t I get my clutch to release and shift properly after it is completely installed?
A: This is typically means the clutch needs adjustment. Adjustment procedures vary by vehicle and can be found in most service manuals.

What starter do I use with Hays flywheels?
A: Most starters use stock or stock style unless otherwise specified.

Which clutch kit to you recommend for my street/strip muscle car?
A: Street/strip clutches are available for most applications and can be found in our Hays catalog.

Where do I need to send my flywheel back to in order to get it “recertified” for SFI?
A: Please refer to the “support” section of our website to fill out a repair form for recertification.

What clutch disc should I use for my 700HP street car?
A: Please call our Specialty Department at 216-658-6264 Monday through Friday 8:30 am to 5:00 pm EST.

Do you sell hydraulic release bearing or hydraulic throwout bearings for my clutch?
A: Sorry, we do not offer a hydraulic bearing at this time.

Why do I need to use a SFI-certified steel flywheel instead of a cast iron flywheel?
A: High performance applications must meet elevated performance requirements.

How much static pressure clamp force do your Hays clutch pressure plates give out?
A: Street applications are rated up to 2,400 lbs and street/strip applications are rated up to 2,750 lbs.