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Search: Posts Made By: UstaB-GS549
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Forum: C5 Tech
04-07-2024, 10:26 AM
Replies: 2
Views: 143
Posted By UstaB-GS549

It is probably the glass. Mine has the same...

It is probably the glass. Mine has the same problem. The replacement is pretty expensive and the possibility of breaking the new glass during installation has kept me from doing anything for many...
Forum: Autocrossing & Roadracing
03-30-2024, 09:53 AM
Replies: 20
Views: 548
Posted By UstaB-GS549

I did an autopsy on my master cylinder to...

I did an autopsy on my master cylinder to determine why it failed. If you look at the photo above you can seen the round cross section black retaining ring holding the spool in place. I had to cut a...
Forum: Autocrossing & Roadracing
03-30-2024, 09:27 AM
Replies: 20
Views: 548
Posted By UstaB-GS549

I did the bench bleed with some clear hoses which...

I did the bench bleed with some clear hoses which purged air in a hurry, but I probably had to crack the lines anyway to remove the last bit of air. If I had to do it again I would just do it like...
Forum: Autocrossing & Roadracing
03-26-2024, 06:43 AM
Replies: 20
Views: 548
Posted By UstaB-GS549

Mine failed on track in 2017. Seal had a tear in...

Mine failed on track in 2017. Seal had a tear in it.Zero brakes and no warning. Replaced it with AC Delco.

...
Forum: C5 Tech
03-24-2024, 01:20 PM
Replies: 3
Views: 173
Posted By UstaB-GS549

I use Longacre toe plates and a simple camber...

I use Longacre toe plates and a simple camber gauge to check alignment. My alignment is about -2 degrees front and -1.5 rear camber with zero toe front and 1/8" toe in at rear. It's stable at 140 and...
Forum: C5 Tech
03-13-2024, 06:28 PM
Replies: 7
Views: 382
Posted By UstaB-GS549

The least cost option is just running stock...

The least cost option is just running stock calipers with real race pads. The downside is taper wear and cost of the pads. SCCA T1 race class Corvettes were required to use stock calipers in the...
Forum: C5 Tech
03-13-2024, 05:53 PM
Replies: 7
Views: 265
Posted By UstaB-GS549

I had same thing. It was leaking from the seal on...

I had same thing. It was leaking from the seal on the cap.
Forum: Autocrossing & Roadracing
03-07-2024, 05:13 PM
Replies: 9
Views: 350
Posted By UstaB-GS549

I used static cling types. The car needs to be...

I used static cling types. The car needs to be clean. Mist on distilled water, slap on numbers & squeegee off to remove water underneath. I did this the night before events & they stayed on even in...
Forum: Autocrossing & Roadracing
02-15-2024, 08:13 AM
Replies: 7
Views: 322
Posted By UstaB-GS549

This is link to the replacement brackets from a...

This is link to the replacement brackets from a guy in Canada. They don't look anything like yours.
...
Forum: Autocrossing & Roadracing
02-15-2024, 07:47 AM
Replies: 7
Views: 322
Posted By UstaB-GS549

This is my Hardbar T1 kit purchased in 2011. Your...

This is my Hardbar T1 kit purchased in 2011. Your mounting bracket looks a little different with the groove. There was a guy on the forum that was selling replacement brackets for this kit as there...
Forum: C5 Tech
02-10-2024, 11:22 AM
Replies: 18
Views: 675
Posted By UstaB-GS549

Pretty sure the springs have always been those...

Pretty sure the springs have always been those heights.
A fatigue failure is due to a large number of cycles at a specific load. Springs to not sag unless they are deflected beyond their yield point.
Forum: C5 Tech
01-27-2024, 09:42 AM
Replies: 40
Views: 1,348
Posted By UstaB-GS549

I have the AP8350 calipers on my car. They fit...

I have the AP8350 calipers on my car. They fit inside OEM C5 Z06 front wheels and will also work with stock rotors. If you do a lot of track time the cost of race pads will justify the initial cost...
Forum: C5 Tech
01-13-2024, 12:12 PM
Replies: 12
Views: 342
Posted By UstaB-GS549

Those are definitely not yellow springs. I posted...

Those are definitely not yellow springs. I posted on an
other thread.

https://www.corvetteforum.com/forums/c5-general/4795990-broken-valve-spring-replacements.html
Forum: C5 General
01-13-2024, 12:07 PM
Replies: 31
Views: 1,196
Posted By UstaB-GS549

2002 C5 Z06: I replaced my original yellow...

2002 C5 Z06: I replaced my original yellow springs in 2009 at 25,000 miles This was mid way thru my 5th season of doing autocross & high speed timed events. Springs were replaced because I was...
Forum: C5 Tech
01-07-2024, 11:36 AM
Replies: 14
Views: 801
Posted By UstaB-GS549

My 2002 C5 Z06 has had Royal Purple Synchromax...

My 2002 C5 Z06 has had Royal Purple Synchromax synthetic in it since around 2005. Transmission is fine.
Forum: C5 Tech
01-05-2024, 09:32 PM
Replies: 1
Views: 179
Posted By UstaB-GS549

Take the belt off and start engine for a minute...

Take the belt off and start engine for a minute or so. The idler pulley looks kind of crusty.
Forum: C5 Tech
01-04-2024, 08:02 PM
Replies: 9
Views: 447
Posted By UstaB-GS549

2002 Z06. I complained about shifting while it...

2002 Z06. I complained about shifting while it was under warranty & dealer put some GM synthetic stuff in. After it was out of warranty, I switched to Royal Purple Synchromax. 12 seasons of track...
Forum: Autocrossing & Roadracing
01-03-2024, 09:58 PM
Replies: 21
Views: 1,586
Posted By UstaB-GS549

I ran all those tracks in my 02 Z06 from 2004...

I ran all those tracks in my 02 Z06 from 2004 until 2017. My comments may apply to C6 cars.
Safety items first:
Replace the OEM Timken wheel bearings with SKF X-Tracker. The Timken flange is prone...
Forum: C5 Tech
12-23-2023, 10:51 AM
Replies: 2
Views: 214
Posted By UstaB-GS549

It sounds like the teeth on the gear are...

It sounds like the teeth on the gear are completely missing in at least the starting position. Turn on headlights and note the direction of rotation on the knob. Turn the knob by hand in the same...
Forum: Autocrossing & Roadracing
12-20-2023, 09:51 PM
Replies: 31
Views: 1,380
Posted By UstaB-GS549

The LS6 was raced in T1 class a long time ago. It...

The LS6 was raced in T1 class a long time ago. It never had a reputation for having oiling problems. When Chris Ingle switched to LS3 his problems began. IRRC GM supplied him with several engines and...
Forum: Autocrossing & Roadracing
12-20-2023, 09:30 PM
Replies: 31
Views: 1,380
Posted By UstaB-GS549

I won't add anything to dry sump vs, accusump...

I won't add anything to dry sump vs, accusump discusion, but I ran a lot of 20 minute sessions at Autobahn Full between 2004 & 2017 without oiling issues.
Data points:
2002 Z06, stock motor (LS6 w/...
Forum: C5 Tech
12-10-2023, 03:46 PM
Replies: 12
Views: 475
Posted By UstaB-GS549

You probably have air trapped in master cylinder...

You probably have air trapped in master cylinder if it ran dry with calipers off.

You might need to "bench bleed" master cylinder first. Or you may be able to accomplish the same by having someone...
Forum: C7 Tech/Performance
12-07-2023, 06:40 PM
Replies: 15
Views: 1,664
Posted By UstaB-GS549

Mobil 1 10W30 is all I ever used. Usually on sale...

Mobil 1 10W30 is all I ever used. Usually on sale at Walmart.

I drive it to work every day during summer months and did track time 2004 thru 2017 with annual oil changes.

I ran 20 minute...
Forum: C5 Tech
12-07-2023, 06:24 PM
Replies: 8
Views: 497
Posted By UstaB-GS549

You should replace the whole master cylinder. If...

You should replace the whole master cylinder. If the seal on the spool valve fails you will have zero brakes. Mine failed in 2017. Not a fun experience.

...
Forum: C5 Tech
11-29-2023, 09:41 PM
Replies: 10
Views: 519
Posted By UstaB-GS549

My winter storage prep for the last 20 years is...

My winter storage prep for the last 20 years is roll up windows, disconnect ground cable, charge battery overnight & disconnect charger in morning.

2002 Z06 in unheated garage December (first salt...
Showing results 1 to 25 of 494
 
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