Chevelle updates - Page 67

L78racer · #**661** 10-02-2016, 07:06 PM

I went through this on a BB Nova. Tried several diaphram plates and discs. Then I went to talk to Paul Mercure of Team Checkmate .
He told me to use a Borg & Beck three finger style pressure plate. I bought the setup from Ram and my problems were over.

VintageMusclecar · #**662** 10-02-2016, 07:35 PM

Do you have the details re: the pressure plate & disc that you used?

**napa68** · #**663** 10-02-2016, 07:56 PM

Eric,

I have this in my Nova

http://www.mcleodracing.com/index.ph...twin-disc.html

Admittedly, my car is lighter than yours. I'm really happy with the drivability and it holds the 600hp well my car makes on MT drag radials.

Tim

VintageMusclecar · #**664** 10-02-2016, 08:55 PM

I was specifically advised against the RST because it's not intended for use with sticky tires. The RXT was recommended instead.

http://www.mcleodracing.com/index.ph...pns-41077.html

I'm going to inquire about a Soft-lok clutch tomorrow. With the drag radials, my power and weight, there has to be a "weak link" in the system somewhere or it's going to break parts. Since you can't "slip" a drag radial tire like you can a bias slick to absorb some of the initial hit, it has to be absorbed by the clutch. In my case, it <span style="font-style: italic">has to</span> slip a little bit on the initial hit, but lock up once the vehicle is in motion.

Here's a good read on the Soft-Lok over on the Chevelle site:

Click here

L78racer · #**665** 10-02-2016, 11:01 PM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VintageMusclecar</div><div class="ubbcode-body">Do you have the details re: the pressure plate & disc that you used? </div></div>

Sorry no. This was in 2001 and that car is gone. I can't find the receipts.
Another thing he recommended was to have more gear. I had slicks with 4.10 gear. I was running a Muncie M20. I wanted to keep the 4.10's so I bought a Richmond T-10 with 2.88 first gear when I put the new Ram clutch in.

**Alss** · #**666** 10-03-2016, 12:11 AM

I'm using the street slayer from http://americanpowertrain.com/ stands up to my 630 hp BBC and T 56

VintageMusclecar · #**667** 10-03-2016, 07:08 PM

I dropped off the clutch at Dayton Clutch & Joint this morning. It appears the pressure plate can be rebuilt & re-surfaced and the flywheel can also be re-surfaced.

After MUCH detective work and a number of phone calls (including to Ram), I ordered another clutch disc--a RAM # 6130--to try with my existing pressure plate & flywheel. This one is a solid step up from the last disc, but it's a dedicated race clutch. It does have a sprung hub to help (at least a little bit) with street manners. Other than that, it's a balls-to-the-wall full boogie race unit.

I *may* have everything back tomorrow, and it shouldn't take too long to get everything back together in the car.

God knows I've got enough practice at it.

**mockingbird812** · #**668** 10-03-2016, 07:14 PM

Friday Wx is looking good.....

VintageMusclecar · #**669** 10-05-2016, 03:28 AM

The new clutch is in. I still have to re-mount the shifter and reinstall the shifter bezel, but I'll do that tomorrow. I also have to replace the power steering belt that flipped itself over @ the track, but that's a non-issue.

I did verify with Ram that the new clutch does <span style="font-weight: bold"><span style="text-decoration: underline">not</span></span> technically require any break-in period, but he did say giving it a little time to seat in wouldn't be a bad idea.

Road report possibly tomorrow.

*edit*

I had some help tonight--Eric & Martin (Orange GTO and black `66 Chevelle, respectively) stopped by to help get the car buttoned back up. Eric took a pic & posted it to Facebook.

**Xplantdad** · #**670** 10-05-2016, 03:36 AM

Sounds promising ersatz clutch guy! [img]<<GRAEMLIN_URL>>/headbang.gif[/img]

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.