98+ CAMARO “LS1” Brakes: Bigger & Better Period - Page 3 - FAQ Board - Third Generation F-Body Message Boards

89 Iroc Z · 09-17-2003, 08:11 AM

I just wanted to let you all know what happened to the LS1 spindle bracket that some of you have been waiting for me to post. I was developing a bracket back in the summer until I found out that I needed a new engine so the project was put on hold for the time being. I wasn’t planning on posting the bracket until I finalized the design but I decided I’ll post what I have done so far and let someone else work on it because it will be some time before I can get to it. I am at college now and do not have access to my spindle / hub setup, which is at home. The bracket is 90% done, but still needs slight tweaking before it’s ready for use. You will probably need to move the caliper mounting holes slightly. This bracket is very similar to the C4 bracket I posted in the C4 post. I used the same cad file and moved the caliper mounting holes and made them smaller to accommodate the LS1 abutment bracket.

I ask if you get this to work to please post the finalized bracket.

EDIT: I have made an updated version of the bracket which is posted later in the thread, you must goto the next page.

MrDude_1 · 09-17-2003, 12:51 PM

THANK YOU!

SDCal7 · 09-17-2003, 02:22 PM

Thanks. This is helpful.

_max_ · 09-17-2003, 09:26 PM

yes thank you very much ls1 brakes in basement waiting for bracket now :hail:

ebmiller88 · 10-12-2003, 11:26 PM

I figured I'd bring this one back to life.

Anyone make a bracket and post the final dimentions? I take it this bracket will be the same for the C5s? I know Todd has a C5 bracket design but I can't find the dimentions posted. I just picked up a set of '98 C5 brakes for the hell of it and thought I'd see what this setup is like.

Also, the calipers I just got seem to be identical to the LS1 caliper that Luke posted back on page 1 of this thread, so I figure the bracket will be the same.

Thanks....Ed

MrDude_1 · 10-12-2003, 11:37 PM

Quote:

Originally posted by ebmiller88
I figured I'd bring this one back to life.

Anyone make a bracket and post the final dimentions? I take it this bracket will be the same for the C5s? I know Todd has a C5 bracket design but I can't find the dimentions posted. I just picked up a set of '98 C5 brakes for the hell of it and thought I'd see what this setup is like.

Also, the calipers I just got seem to be identical to the LS1 caliper that Luke posted back on page 1 of this thread, so I figure the bracket will be the same.

Thanks....Ed

im working on doing the "LS1" brake swap, but i dont have the bracket made yet

between me moving back and forth from Texas to south carolina, i havent gotten it finished yet.

my current project hold up is im trying to find a wheel hub setup that i can mount a ABS sensor on.

Matthew91-Z28 · 10-14-2003, 03:52 PM

Bringing back to top....

Yes....anyone got those final dimensions on the bracket?

ebmiller88 · 10-14-2003, 04:05 PM

Since the brakes I got are LS1s, I will be working on a bracket this weekend. It'll be similar to the C4 bracket, but I may change it a bit to make it easier to make. I made the C4 bracket by hand and it's a PITA...lost of small cuts to get it right. Also, the C4 style bracket involves removing the turn stop on the spindle. If you rotate the caliper up a bit, you should be able to eliminate this and make the bracket more rectangular.

I should have something to post on Monday at the latest.

Ed

89 Iroc Z · 10-14-2003, 04:47 PM

Quote:

Originally posted by ebmiller88
If you rotate the caliper up a bit, you should be able to eliminate this and make the bracket more rectangular.

I tried moving the caliper around but the only way I could make it work is the design I posted above. If you get it to work another way I would greatly appreciate it if you post the design.

MrDude_1 · 10-14-2003, 05:07 PM

Quote:

Originally posted by ebmiller88
Since the brakes I got are LS1s, I will be working on a bracket this weekend. It'll be similar to the C4 bracket, but I may change it a bit to make it easier to make. I made the C4 bracket by hand and it's a PITA...lost of small cuts to get it right. Also, the C4 style bracket involves removing the turn stop on the spindle. If you rotate the caliper up a bit, you should be able to eliminate this and make the bracket more rectangular.

I should have something to post on Monday at the latest.

Ed

heh, you work somthing out, and i'll probly drive across the state to personally pick em up from ya...

z28cdoyle · 10-16-2003, 09:24 PM

I will be watching to see how things go with the bracket design. I have not started on a bracket yet. I just took a set of rotors to my local machine shop to have them turned into hubs. The guy I talked to said about $30 for the job. Not a bad price.

Once I get the hubs back; I'll be looking for a bracket. I have 89 IROC Zs design scaled and printed at the proper size. Unless someone else posts something better, I'll start with that.

Keep us posted.

z28cdoyle · 10-16-2003, 09:43 PM

Ed,
I was thinking about your comments on the LS1 bracket design compared to a C5 bracket. I have heard that the LS1 calipers and C5 calipers are almost identical except for the stiffening ribs and the manufacturing method.

The LS1 rotors are 12" though and the C5 rotors are 13" diameter. Wouldn't the C5 bracket have to be different than the LS1 bracket to mount the same caliper on a rotor 1" larger in diameter?

Chuck

wlsmoku · 10-16-2003, 10:13 PM

I apologize ahead of time for the ignorant question, but can you use a 4th gen spindle so you don't have to fabricate anything??

Matthew91-Z28 · 10-16-2003, 10:45 PM

sorry guy.....nope....look at em in the bone-yard. Wish it was just that easy.

and no, ls1 and c5 baskets do not interchange, and c5 calipers won't fit under stock 16" wheels (I think).

Ed....you saved my arse when I installed my springs. :yourock:

You cannot fail me now.

89 Iroc Z · 10-16-2003, 11:31 PM

Quote:

Originally posted by z28cdoyle

The LS1 rotors are 12" though and the C5 rotors are 13" diameter. Wouldn't the C5 bracket have to be different than the LS1 bracket to mount the same caliper on a rotor 1" larger in diameter?

The C5 rotors are actually 12.75 inches. Yes you are correct the C5 bracket will not work with F-body LS1 brakes. That’s why I posted my design above.

89 Iroc Z · 10-16-2003, 11:33 PM

Quote:

Originally posted by wlsmoku
I apologize ahead of time for the ignorant question, but can you use a 4th gen spindle so you don't have to fabricate anything??

4’th gen F-body’s have a totally different spindle design and they are not interchangeable with 3’rd gen’s.

wlsmoku · 10-17-2003, 07:34 AM

ok...well I bought the calipers, rotors, and spindles for $50, so now I'm in the same boat as the rest of you...we just need a test mule to get this thing hammered out

good luck fellas - keep us posted

ebmiller88 · 10-17-2003, 11:50 PM

For those without a CNC or a CAD program, copy Luke's drawing into Word and blow it up to 168% of original size and print it out. That'll get you the right size.

Ed

ebmiller88 · 10-18-2003, 11:59 PM

OK, making progress here. First off, as discussed, the C5 bracket design will not work with the LS1s, the bolts would interfere with the spindle...just not enough clearance. Nice design but just won't work.

To Luke:

Second: On your design pictured below, the "C" (carrier) bolt holes need to be spaced out 1/16" further apart, just a minor tweaking. (Maybe it's just the way it printed out.)

Third: As viewed on the page, the carrier holes could be rotated "up" towards the top about 1/2", along the same arc of the curve, if you understand what I'm talking about. I have a bit of interference with the lower portion of the spindle since the caliper piston bores are so damn big, much bigger than a C4 caliper. I may drill another set of holes in the approximate location and see what that does. FIrst I'll just remove a bit more off the spindle in that area.

Other than that, looking good.

Ed

ebmiller88 · 10-19-2003, 02:34 AM

OK, maybe not 1/2" rotation...maybe 1/4"-3/8" or so, shich is like 1-3 degrees. Any more than that and the bolts would hit the spindle...unless you opted to use a socket head Allen bolt there liek Todd did with the C5 bracket.

I should have pics of the completed LS1 stuff tomorrow. I'm pretty much done and so far, here's what I have:

-3/8" thick bracket material
-(4) M12x1.75x 30mm (length) bolts- All will be the same here, unlike the C4 bolts which are M12 and M14 (2 each)
-Unless you don't mind grinding a bit on the caliper carrier, which I will not do, you must grind a little metal off the head of bolt #3, the 3rd one down (the lowest spindle bolt). It will come in contact with the caliper carrier if you don't. There's not as much room here as with the C4 bracket- different mold design.
-You must use a small thickness washer (1/16"-1/8" or so) between the bracket and the caliper carrier for 2 reasons:
1- To assist in clearing bolt #3, as described above
2- To center the rotor in the carrier.

I'm about done...I have to get different washers for the spacing issue and make the brackets out of steel. I make templates out of plexiglass and fit it all up first to make sure my dimentions are right.

Luke: Nice work AGAIN on the bracket. Other than the small spacing issue I mentioned, it's perfect.

Ed

ebmiller88 · 10-20-2003, 03:50 AM

Ok fellas. Although they aren't on the car, the LS1s are done. I will get pics and post them today after the paint dries.

Yet another brake upgrade option!

Ed

novass · 10-20-2003, 04:50 AM

Ed,
Was you final plexy template right on? If so do you have a flat bed scanner that you could put it on and scan it? And Post the pic. If the overall outside of the brackt is the same as the posted template I should be able to take the original cad file and update it to finished form and repost it.

Br1dgeman · 10-20-2003, 09:24 AM

Ed-

You have E-mail.

89 Iroc Z · 10-20-2003, 10:54 AM

For everyone who wants to print out that cad file to scale:
The best way to do it is to get a copy of autocad off someone. It has an advanced setup where you can scale your printer so it will print perfect copies. If you take the pic I posted above rescale it and print it the scaling percent will be different for each person because each printer is different. So as Ed said above scale it in word to 168% this will only work for him everyone else should have to scale it slightly different number to get the right size.

If you can’t get a copy of auto cad you can download Volo View Express. This program is free and will allow you to open and print cad files. The only downfall is it doesn’t have an advanced printer setup like Autocad does so you have to keep adjusting the scale in printer settings until you get it right (the scaling percent is different for every printer) If you are using volo view do the following:
1) Download and open my cad file
2) Goto file --> Page setup --> Drawing setting tab and uncheck “fit drawing to page”
3) Print a copy of the of the file
4) Goto file --> print and where it says “reduce/enlarge” increases or decrese this percentage as needed

Ed,
There is no way to get this bracket printed perfectly to scale without Autocad. So I am reluctant to edit the cad without you getting a perfect printout of the bracket as a base.

ebmiller88 · 10-20-2003, 09:58 PM

Nova, My plexi template was very good, but after I moved the carrier holes out 1/16" each, per the drawing that I printed out. As Luke stated, it may have just been my printer and his drawing may be right on.

Here's the first pic of the hub and bracket on the spindle. It looks VERY much like the C4 stuff, but the carrier holes are moved in about 1/2" toward the hub in this bracket. I don't have an exact measure, rough guess. I'll get that later:

ebmiller88 · 10-20-2003, 10:00 PM

Bracket pic. LS1 on the left, C4 on the right. Almost identical but not:

ebmiller88 · 10-20-2003, 10:00 PM

Got the carrier on: