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-   -   Introducing "TRACKDAY", 1968 Camaro (https://www.lateral-g.net/forums/showthread.php?t=10706)

will69camaro 06-25-2008 10:41 PM

Sounds good. I wish I could set a project date/schedule for mine but nothing can be set in stone at the moment. I'm hoping by the first of the year I can put together a MS Project baseline for my car so I have a goal!

Keep us updated, i'm really enjoying the thread!

William

sik68 07-15-2008 10:12 AM

I have an update!

The first thing I did last night was finally bolt the rear axle to the Global West L2 rear springs. To do this properly on my monoleaf rear axle, I used the Detroit Speed monoleaf to multileaf conversion kit. Basically, it uses a pair of 1" square bar rectangles to act as spring perch extensions. Here is a picture:

http://i207.photobucket.com/albums/b...o/IMG_3387.jpg

The conversion kit comes with 7/16" U bolts, but I had already bought 1/2" ones. I just simply drilled out aluminum blocks to accept the larger diameter. Speaking of the blocks, the 1" dimension of the blocks is a perfect fit. I put 45lbf*ft on the U bolts, and that just leaves the slightest clearance in the blocks: ie, all the compressive force is going into the springs. In the picture you can also see the Detroit Speed shock mount plates...

sik68 07-15-2008 10:13 AM

Plumbing a braking system is not fun...but I was able to finish it in a matter of 2 days. It's not pretty, but eventually I just sighed and said, "good enough." I just hope it doesn't leak...

Wilwood, Kore3, Inline Tube

Here are some pics, hopefully the installation doesn't come across as too hacky (although the hose clamps on the axle don't help.

http://i207.photobucket.com/albums/b...o/IMG_3392.jpg
Don't worry, that tube doesn't drop in the way of the steering box shaft...it's just the angle of the picture.


http://i207.photobucket.com/albums/b...o/IMG_3388.jpg

Yet another mockup of the rear caliper:
http://i207.photobucket.com/albums/b...o/IMG_3403.jpg

Next update looks like it will be the installation of my ATS 670 steering box and Detroit Speed steering linkage.

Thanks!
Steven

sik68 08-03-2008 11:01 PM

Latest update!

I had debated for a while whether to go with a nice set of slotted rotors (DBA 4000) for my C5 kit, or to run a set of inexpensive rotors. Some guys over at corvetteforum.com swear by high-end rotors...yet others insist that if you're running trackdays, the stock replacements can take the punishment. Well, I ended up going the cheaper route this time. I purchased Napa "Ultra Premium" rotors (86700, 86701, 86702, 86703). Here are a couple mock-up shots for the front and rear:

http://i207.photobucket.com/albums/b...o/IMG_3452.jpg

http://i207.photobucket.com/albums/b...o/IMG_3461.jpg

The hats of the front rotors came painted...nice. But the rears werent. So I rattled on some high temperature paint. Here's my taping of the approximate swept portion; I'm trusting that the pads will take off any excess:

http://i207.photobucket.com/albums/b...o/IMG_3423.jpg

Of course, it's not a car weekend without encountering some problems. I ran into an interference problem when I was mocking the passenger side rear rotor and the abutment bracket. the inboard face of the rotor scrubbed against the abutment bracket. Here's what I mean:

http://i207.photobucket.com/albums/b...o/IMG_3443.jpg

After many measurements with the calipers left and right, I determined that the welded flange of my axle housing is inboard by 0.07" compared with the driver side (which was fine rotor/abutment wise). After 3 hours, I had whipped up a shim to go behind the rotor:

http://i207.photobucket.com/albums/b...o/IMG_3441.jpg

continued...

sik68 08-03-2008 11:03 PM

I cut it from 16 ga. steel (0.0625"). I confirmed with a dial indicator on the rotor that runout is still ok. The result is this:

http://i207.photobucket.com/albums/b...o/IMG_3448.jpg

After my mono/multileaf fisaso, I finally got my Bilstein shocks installed in the rear...sure was easy:

http://i207.photobucket.com/albums/b...o/IMG_3434.jpg

On Sunday, my girlfriend came up for the weekend and wanted to help me work on it. I handed her the hotchkis front sway bar and said "go for it":

http://i207.photobucket.com/albums/b...o/IMG_3428.jpg

Haha, she's a good sport, and 2 hours later, we finally got the swaybar in...

http://i207.photobucket.com/albums/b...o/IMG_3430.jpg

Project Trackday is coming along nicely...tomorrow I am shipping my power steering pump back to Unisteer so they can upgrade me to a double-groove pulley. I ordered my wheels from Newstalgia...but I won't say what they are until I can post pics in 3-5 weeks. Phase 1 is almost complete!

http://i207.photobucket.com/albums/b...o/IMG_3458.jpg

sik68 08-03-2008 11:03 PM

http://i207.photobucket.com/albums/b...o/IMG_3460.jpg

Thanks for tuning in,
Steven

68protouring454 08-04-2008 02:58 AM

get rid of that spacer behind the rotor its gonna cause run out and squeaky brakes, bring the caliper abutment to someone with a bridgeport mill ands have them mill .007 of the mounting pads. you always want your rotor against your hub or axle flange

tgvettes 08-04-2008 06:50 AM

Another thing for you to check out if you haven't already, I heard that like billet rally wheels are not supposed to work with C5 brake kits. Of course I don't know what wheels you ordered but if you haven't checked make sure the wheels you are getting fit with C5 brakes.

Tonny

sik68 08-04-2008 09:13 AM

Quote:

Originally Posted by 68protouring454 (Post 159816)
get rid of that spacer behind the rotor its gonna cause run out and squeaky brakes, bring the caliper abutment to someone with a bridgeport mill ands have them mill .007 of the mounting pads. you always want your rotor against your hub or axle flange

Cheers, Jake! :captain:

I was hoping I would raise some eyebrows on this one, because I am not sure that shimming the rotor is acceptable practice. Although the runout I achieved seems ok, 0.004", there may be side effects that I'm not considering. Has anyone here had their abutment brackets milled?

Steven

Apogee 08-04-2008 10:24 AM

Quote:

Originally Posted by sik68 (Post 159856)
Cheers, Jake! :captain:

I was hoping I would raise some eyebrows on this one, because I am not sure that shimming the rotor is acceptable practice. Although the runout I achieved seems ok, 0.004", there may be side effects that I'm not considering. Has anyone here had their abutment brackets milled?

Steven

Steven,

We've had several customers in the past who have milled either the brackets or the PABs in order to compensate for a housing not exactly to "spec". Since we're only talking .070", I wouldn't hesitate to do either, just depending on what I had access to with respect to tools and fixturing...the PABs are a little more difficult to set up on a mill than a flat plate is.

I know you purchased the DIHPB brackets so that you could add the parking brake in the future, but keep in mind that if/when you do that you may need to cut down the lip of the internal drum in order to maintain sufficient clearance between the drum and the parking brake backing plate. Technically there should be about .010" clearance...but I wouldn't count on it.

Tobin
KORE3


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