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02-19-2004, 09:19 PM
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#301 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Haven't checked it yet...I'll get back to you.
Ed
EDIT: Nope, didn't get it. Sent you a PM.
Last edited by ebmiller88 : 02-19-2004 at 10:59 PM.
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02-23-2004, 05:59 PM
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#302 | | Senior Member
Join Date: Jan 2004 Location: at the gas pump
Posts: 1,308
Car: 85Z28 Engine: 14.1 496 BBC Transmission: Th350 manual reverse w/ brake Axle/Gears: 3.89 9inch moser/strange | Hey! great stuff,
I decided to give it a go and everything worked out fairly good, I turned down the rotors on the brake lathe, yes it can be done. I also cut my own brackets out of 3/8 steel...PITA is right on the money! I also ended up with a rotor to close to the inside of the carrier, about .050 off to the inside....here`s what I`m thinking, why not put a shim behind the inboard wheel bearing to move the hub and rotor to the desired place? I realize that will only work to move the the disc out but I think it will work.
__________________  THE MACHINE
new best of 10.23 @ 134.74mph!!
1st nitrous pass 125 shot 9.81 @ 138.00mph | |
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02-23-2004, 06:05 PM
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#303 | | Senior Member
Join Date: Jan 2004 Location: at the gas pump
Posts: 1,308
Car: 85Z28 Engine: 14.1 496 BBC Transmission: Th350 manual reverse w/ brake Axle/Gears: 3.89 9inch moser/strange | here`s a pic
Last edited by greezemonkey : 02-24-2004 at 06:55 AM.
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02-26-2004, 09:54 AM
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#304 | | Senior Member
Join Date: Nov 2000 Location: Manchester, CT USA
Posts: 1,120
Car: 88 WS6 T/A, 81 K-10 shortbed Engine: LB9 - Modified... Transmission: TH-700R4 Axle/Gears: 3.23 10 bolt | Just to state this again from a previous post....
now that the bugs seem to be scattering who will be offering a kit for the swap??? | |
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02-26-2004, 12:10 PM
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#305 | | Junior Member
Join Date: Feb 2001 Location: indiana
Posts: 61
Car: '87 GTA hardtop Engine: 383 DFI Transmission: T-56 Axle/Gears: 9-bolt, 3.70, posi, disc | i have about $250 total for everything needed. i bought the cheapest stuff i could get with my discount through work. i bought loaded reman calipers for $60 each, rotors were $30 each, brackets were $50 for both, cut my own rotors at work for free, also put in new bearings and grease seals but i did not include them in the price since it wasn't needed for the swap, i also modified the spindles myself. i didn't have to pay for a core charge on the calipers, i sent my old calipers back to him and he didn't know any diff. btw "loaded" calipers are calipers, carriers, and pads if you didn't know. | |
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02-27-2004, 08:33 PM
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#306 | | Member
Join Date: Aug 2003 Location: Greensburg, PA
Posts: 157
Car: 85 IROC Engine: 355 Transmission: Tremec 5 speed | Well I finally got to try out the LS1 brakes today after work. All went well. The car stopped, nothing leaked, nothing broke, no funny noises...first test passed. This was not a trip to the racetrack or anything just a drive around the local raods to irritate the neighbors (my car has no cat, no mufflers, a dual exhaust with pipes that come off the headers and dump out the side of the car like a NASCAR stock car, lots of noise, way too much fun).
Just for reference; I have an 85 IROC, stock master cylinder (disc/disc), adjustable proportioning valve, the LS1 brakes on the front, and the stock single piston rear calipers (with the recall kit) out back.
My pedal did seem a little low but I think I still have air in the front brake lines. I was only able to "gravity bleed" the fronts. Chalk that up to my Phoenix Injector brake bleeder that is a piece of crap. It is a complete waste of the $100 I paid for it. It absolutely does not do what it promises to do. | |
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02-27-2004, 08:45 PM
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#307 | | Member
Join Date: Aug 2003 Location: Greensburg, PA
Posts: 157
Car: 85 IROC Engine: 355 Transmission: Tremec 5 speed | Andy,
Just saw your message. If you can make them spacers I can still use them. I bolted up my setup already but it is no big deal put the spacers on.
Jerry,
How did your high mount bracket work out? Did you check the caliper clearance like Ed asked about considering where the caliper will be with both new and worn brake pads? | |
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03-01-2004, 10:47 PM
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#308 | | Senior Member
Join Date: Feb 2001 Location: kentucky
Posts: 379
Car: 1990 GTA Engine: L98 Transmission: Auto | Chuck,
I actually already made them  . The last time I posted on this thread I worked an evening shift and since there's no supervisor on nights I do all of my goverment jobs then. I lost your address so just email it to me and this time I'll tape the spacers to a index card or something. They turned out a little thinner than the first ones. They're all between .011- .014. Is this okay? | |
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03-02-2004, 09:42 PM
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#309 | | Junior Member
Join Date: Feb 2004 Location: lake ozark, MO
Posts: 61
Car: 90 camaro Engine: 305 Transmission: 700R4 | Can some one put all the diegrams for the ls1 front breaks into one file. Also can you make a list of all the hardwere, nuts and bolt ect.
thanks. Tony C. | |
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03-03-2004, 08:38 PM
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#310 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Tony, I'm sure all the info is in this thread. It just takes a bit of time to get it all together.
OK, we just put the LS1s on Mark Lock's car tonight. Here's a few things I learned:
1. It's a real smooth install using the brackets and trimming them a bit like Chuck did, making small curves for the piston bores to fit in.
2. Mark's car already had the A-arm steering stops cut off, don't know why but they were. SO, unlike Chuck's install, we had no issue with the banjo bolt. If using these brakes, I'd just remove the stop also, it's really no big deal, just use caution when going from lock to lock.
3. Stock rubber brake lines fit perfectly, and the ones that the LS1 calipers use will work well also. This type is part metal. However, the stock style lines, or an Earl's set, will fit better.
4. I did NOT have to use a spacer washer between the carrier and the custom bracket. It fit perfectly with the 3/8" bracket.
5. I recommend having an extra bottle of brake fliud around in case you have a leak 'cause the brake line fitting is on backwards and you drain the reservior...  .
6. You will need an alignment afterwards, and they can vacuum bleed the brakes at the same time, just a helpful hint.
7. Guys running front spacers: Mark has 2.25" spacers which put the outer edge of the wheel right on the fender lip and it looks great, but maybe a 2" spacer would be better and reduce the track width increase.
Other than that, all is well and I'm sure he'll post his opinions. Now he's got LS1 brakes front and rear.
Ed | |
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03-03-2004, 09:13 PM
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#311 | | Junior Member
Join Date: Feb 2001 Location: indiana
Posts: 61
Car: '87 GTA hardtop Engine: 383 DFI Transmission: T-56 Axle/Gears: 9-bolt, 3.70, posi, disc | why would you need an alignment after this swap? i must be missing something. | |
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03-03-2004, 09:39 PM
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#312 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | You have to swap spindles...OK, hold it...
If you mod the spindles on the car, you will be OK and won't need and alignment. Since we swapped spindles on Mark's car and disconnected them from the struts, we messed all the alignment settings up. Not the tie rods or anything, just the other stuff. You may not "need" one, but I recommend it strongly.
Ed | |
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03-04-2004, 12:48 AM
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#313 | | Junior Member
Join Date: Feb 2004 Location: lake ozark, MO
Posts: 61
Car: 90 camaro Engine: 305 Transmission: 700R4 | how much time did it take for your swap | |
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03-04-2004, 01:55 PM
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#314 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Right at 2 hours total, drive in to drive out and including cleanup of my wife's parking spot. I have yet to try an on-the-car spindle mod, but I figure it to take more time since you have to be careful when tapping the holes.
Ed | |
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03-04-2004, 07:01 PM
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#315 | | Senior Member
Join Date: Jul 1999 Location: Concord, NC
Posts: 763
Car: 86 IROC-Z Engine: Superramed 355 w/ intercooled T72 Transmission: T56 -=- www.iroc-ss.com | I was able to bleed the brakes a little more and took it out for another spin. These babys ROCK compared to stock brakes. Its very nice to stomp on the brakes and stop real smooth and fast now. Makes the old brakes feel like I was doing to Flinstone's.
I highly recommend doing this swap. It would be hard to find a better braking performance bang for the buck than this deal.
I would recommend that if your running 4th gen wheels then use a 2" spacer instead of a 2.25". My offset was pefect but now with the extra thickness of the rotor, Its a hair to far out.
Thanks again Ed!
Last edited by lock : 03-04-2004 at 10:10 PM.
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03-04-2004, 10:02 PM
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#316 | | Senior Member
Join Date: Aug 2001 Location: Fairfax, VA & Norfolk, VA (ODU)
Posts: 2,078
Car: 1989 Iroc-Z Engine: 350, ZZ4 equivalent Transmission: Pro-Built Road Race 700R4 Axle/Gears: 3.23 | I'm back!
I know I haven't posted in this tread forever, but hey it's never too late.
Good work guys, it's definitely looking good. Lock what brake hoses are those? Stock thirdgen or stock LS1?
I can't wait to get my car running so I can get back to the brake project... | |
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03-04-2004, 10:08 PM
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#317 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | No problem, Mark. It was fun. Now you owe me a ride in that bad boy....Hell...Installed them with you and didn't even get a ride!!!
Ed | |
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03-04-2004, 10:09 PM
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#318 | | Senior Member
Join Date: Jul 1999 Location: Concord, NC
Posts: 763
Car: 86 IROC-Z Engine: Superramed 355 w/ intercooled T72 Transmission: T56 -=- www.iroc-ss.com | Quote: Originally posted by 89 Iroc Z
Lock what brake hoses are those? Stock thirdgen or stock LS1?
| Those are stock replacement 3rd gen ones. I replaced them not too long ago so we stuck with them. It looked like the LS1 lines would work but there are shorter. Personally I'd stay with the 3rd gen ones. | |
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03-04-2004, 10:12 PM
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#319 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Luke, those are stock 3rd gen hoses and they fit perfectly, I'd say they fit better than the stock LS1 hoses would due to the metal section that the LS1 hoses have...it would hit the A-arm sooner than these would.
Ed | |
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03-05-2004, 08:06 AM
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#320 | | Senior Member
Join Date: Sep 2000 Location: St. Louis, MO
Posts: 1,021
Car: '91 GTA Engine: 402ci LS1 Transmission: TH350 Axle/Gears: 9" w/ 3.50's | Quote: Originally posted by lock
I was able to bleed the brakes a little more and took it out for another spin. These babys ROCK compared to stock brakes. Its very nice to stomp on the brakes and stop real smooth and fast now. Makes the old brakes feel like I was doing to Flinstone's.
I highly recommend doing this swap. It would be hard to find a better braking performance bang for the buck than this deal.
I would recommend that if your running 4th gen wheels then use a 2" spacer instead of a 2.25". My offset was pefect but now with the extra thickness of the rotor, Its a hair to far out.
Thanks again Ed! |
SWEET! I'm waiting on my caliper brackets in the mail right now! I can't wait to do this swap. I'm probably going to rebuild the entire frontend while I'm at it and sandblast/paint everything too along with adding new shocks/struts and some eibachs too. It should turn out pretty sweet. I'm just glad to know I need the 2" spacers for the 4th gen wheels.... doesn't look like I'll have any problems getting my 15x3.5" Weld skinnies to clear the brakes with a big spacer. Awesome! | |
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03-09-2004, 07:11 PM
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#321 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Check these bad boys out: | |
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03-09-2004, 07:13 PM
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#322 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Closer view of fronts: | |
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03-09-2004, 09:39 PM
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#323 | | Member
Join Date: Jul 2002 Location: San Antonio, TX
Posts: 143
| Those look GREAT!!!!!
__________________
88 GTA: Slammed and Cammed
05 Mustang GT: Blue and Blown
Proud member of
team3rdgen.com | |
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03-09-2004, 10:36 PM
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#324 | | Senior Member
Join Date: Aug 2001 Location: Fairfax, VA & Norfolk, VA (ODU)
Posts: 2,078
Car: 1989 Iroc-Z Engine: 350, ZZ4 equivalent Transmission: Pro-Built Road Race 700R4 Axle/Gears: 3.23 | I am going to polish mine, I think that will look awesome, gotta love aluminum. | |
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03-10-2004, 02:16 PM
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#325 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Polished would look great!
Wrong damn thread....
Last edited by ebmiller88 : 03-10-2004 at 02:39 PM.
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03-10-2004, 02:16 PM
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#326 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Wrong thread...
Last edited by ebmiller88 : 03-10-2004 at 02:40 PM.
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03-10-2004, 02:17 PM
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#327 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | Yep, wrong thread..
Last edited by ebmiller88 : 03-10-2004 at 02:41 PM.
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03-10-2004, 02:18 PM
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#328 | | Senior Member
Join Date: Mar 2001 Location: Fort Mill, SC, USA
Posts: 6,049
Car: '88 Iroc, '91 RS, and a '70 RS Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the agenda Transmission: A4, A4, slated to be a T56 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Last edited by ebmiller88 : 03-10-2004 at 02:41 PM.
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