Hey guys, Im on the hunt for a SPEC Stage 3 clutch and as Im looking around sites, I noticed they exist only for the 2.2L and the 2.0L. I thought about all the threads saying the 2.2 and 2.4 trannys are "probably" the same...no confirmations though. So I called up Chevy and spoke to the parts department. I told him everything about how Im looking to upgrade the clutch. He looked some stuff up for me and said that the 2 trannys are NOT the same. He was kind of vague but he told me that the difs are the Limited Slip Front Axel, and the Gear Ratios. I dont know much about either of those things so Im hoping you techies can help out.

Questions:
1. Do the 2 differences affect the swapping of a new SPEC clutch thats made for the 2.2L?
2. Is there any way to request that SPEC design a clutch for the 2.4L specifically?
3. Has anyone already found a clutch made specifically for the 2.4L?

Please throw some ideas in here. Thanks everyone!

 

"You would need to find out if the "clutch and pressure plate" are the same part number on the 2.2 as on the 2.4L engine. If they are there is a good chance that it would work."
Thanks
Aaron
TTR


>>This is obviously from our friend Aaron at TTR whose helping out a lot. Thanks again!

 

Just called again and got the part numbers. Both the 2.2 and 2.4 have the same part numbers for the clutch and pressure plate:

2.2/2.4 Clutch: 12582699
2.2/2.4 Pressure Plate and Cover: 12582698

Someone tell me this is good news and the aftermarket clutch will work

 

Good news they will work. Now what about sourcing a lightweight flywheel?

 

Wont Fidanza fit all? Theres a 2.2 and 2.0 Fidanza, so I assume the 2.2 will fit right?

 

That was my guess as well but I didn't get part numbers to cross check. But since clutch disks and PP are the same the flywheel for the 2.2 should work with the 2.2 clutch set up.

Did they give any torque limits on the Stage 3 clutch for the 2.2. I know a boosted 2.4 is going to make alot of grunt.

Doesn't EXEDY now have a stage 3 as well?

 

Ive seen the Exedy Stage 3 clutch but Ive had SPEC experience already and I was very impressed. The NON "+" Stage 2 SPEC is good for 300 ft lbs of torque. It doesnt say anything for the Stage 3 but Ill be getting 3 for sure. I just PMed TurboTechRacing if they know the capacity of the Stage 3 so Ill let you know. Ill probably get the flywheel from them too.

 

Ask them about pedal pressure. If its your daily, you don't want it 300ftlbs of force to press it in....

 

STAGE 2:

Types of Driving: Street, Drag, Pulling, Autocross
For all mild to moderately modified naturally aspirated and power adder engines. (Also good for stock power levels and spririted driving when good daily drivability and extremely long life are the goal.) Stock-like daily drivability and EXCELLENT wear characteristics.
High clamp pressure plate, pure Kevlar friction material and high torque sprung hub and disc assembly kit. Torque Rating - 300 FT/LBS

STAGE 3:

Types of Driving: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross
For heavily modified street and race engines. Offers sufficient daily drivability with a comfortable pedal feel and quick engagement. Offers good wear characteristics under low and high stress usage.
High clamp pressure plate, 4 or 6 puck carbon semi-metallic friction with high torque sprung hub and disc assembly, bearing and tool kit. 6 puck is standard on most applications, but 4 puck can be specified when ordering. N/A FT/LBS

>> HELP! I dont know which to pick... They cost the same $386. Which should I get???

 

"sufficient daily driveability" (Stage 3) which means its a little heavy...would sway me towards the Stage 2. Especially if you have a 2.4 and want to stay NA with may be a NOS shot here and there. Stage 2 will still retain DD and allow you a good ceiling (300 Ftlbs) for a NOS shot.

This is probably the route to take if I stay NA.

 

the stage two is a normal clutch, the stage three is a pucked setup.

i'd stay with the stage two unless you're really going to race it. most puck clutches are very hard on the legs and tires. also, you kinda want a clutch that's designed for the power level you're going to be at. too much is just as bad as not enough, somtimes worse.

 

great info guys,Ill be looking at this come spring

 

I was looking at the prices for stage 2 and 3 and though their the same why not get stage 3. But after looking into stage 3 is gonna be worse for a DD and if you aren't going heavy into FI then stage 2 will be fine for boltons/50shot/light FI setups.

 

Awesome feedback guys, thanks a bunch

 

Are you sure your dealer wasn't comparing a 2.2L to a 2.0L SS?? I didn't think that the 2.4L SS had a limited slip and I know that the 2.0L SS has a lower first gear and a higher OD gear. Pretty sure that the transmission gear rations for the 2.2L and 2.4L are the same, although the differential gear may be different.

 

I was very clear about what I needed to know, and from what he said, Im pretty sure he was on the ball