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Old 04-04-2019, 11:04 AM   #2451
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Quote:
Originally Posted by hammdo View Post
Caster move was the big gain (2.5°!). I was at -0.1° Camber, 1/16" total toe in, 5.7° caster before the Radius arm change (street settings).

Racing — as much camber as I could get (-2.2° front) when I had the Morenos with the 5th gen arms - caster was stock 5.7°.

If you make no other adjustments, toe and camber does change a bit. I didn’t get the before spec but, can ask 5th Gear for it.

I still have a lot of room for camber — May see just how much when I play with it.

If you used the 6th gen SS 1LE arms, THOSE have a great bushing. 5th gen bushings in the radius arm I believe won’t work (thus the 6061 aluminum spacers).

I really like the sphericals I installed in the radius arms and how tight the front feels. The 2.5° caster gain is ‘epic’ ;o) - the return to center is solid and quick.

I’ve not had a chance to look at the ZL1 1LE arms to see what the difference is but, they sure look like the plain SS version.

This post show just how close to the JPSS inserts (aluminum vs Z/28s delrin) the SS version is:

https://www.camaro5.com/forums/showp...postcount=2420

My guess is you could use the Moreno’s just for camber and this radius rod upgrade for caster — and get the best of both worlds.

Note: bump steer will very likely need to be addressed — which I had the kit already and was able to correct that.

-Don
Many thanks for the detailed reply!

I forgot to mention - I've also enlarged the mount holes on my DSSV struts a little to allow me more camber adjustability and also a few mm of front ride height adjustment.

I think I could get about 3deg of front camber and 7deg caster with my current setup. Maybe I'll try maxing it out later in the season to see how it drives.
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Old 04-04-2019, 01:28 PM   #2452
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Ah, yea. You’d be better using the SS 1LE arms and just drill out like Geoff did:

https://www.camaro5.com/forums/showp...&postcount=141

He was my guinea pig ;o)...

Edit: strut or radius was opened up?

If you did not modify the radius rod point, then what I did will work for you...

-Don
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Last edited by hammdo; 04-04-2019 at 06:19 PM.
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Old 04-05-2019, 11:03 AM   #2453
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Don, I saw you were asking about Robert T a couple days ago. He was down at the Texas Mile, spectating, coaching and BSing two weeks ago. He looks good and I don't think he's missed any meals I'm sure he will chime in soon.
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Old 04-05-2019, 12:11 PM   #2454
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Yea, haven’t heard from him in a while — knowing what he’s going through...

Thanks for the update! I haven’t missed too many either ;o)

-Don
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Old 04-06-2019, 11:19 PM   #2455
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Quote:
Originally Posted by cdb95z28 View Post
How far from stock do you have your bump steer kit set to? Good to hear that you don’t have any additional bump steer. Adding caster helps the dynamic camber requirements without needing additional static camber.
Just saw this. I’m between .010 to .020 of bump steer now. I didn’t measure ‘stock’ before I made the changes initially. I’d say that is pretty good ;o).

On dips, bumps, or that occasional ‘lift’ in the front, it stays ‘straight’...

-Don
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Old 04-10-2019, 01:51 PM   #2456
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What made you decide that you needed to add the bump steer kit? Are you lowered more than normal? You seem to be about the only one on the forum that I can find that has adjusted for bump steer.
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Old 04-10-2019, 03:33 PM   #2457
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Lowered and the factory settings can be off. Having worked on suspensions a lot in the past, the geometry was alway important. I want to limit the changes as much as possible and the bump steer kit is what you need to keep the geometry within tolerance. When road racing, it’s very important - to me anyway...

-Don
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Old 04-10-2019, 03:42 PM   #2458
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I don't guess that there is anyway of actually installing a kit without the gauge to measure the bump steer.
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Old 04-10-2019, 03:46 PM   #2459
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Kinda but, it’s pretty much the tool I bought. You just make it from scratch and use a simple dial indicator. Coilovers will be very different than oem struts...

-Don
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Old 04-10-2019, 06:55 PM   #2460
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So, looking over 'Docs' thread (https://www.camaro5.com/forums/showthread.php?t=45165), I noticed he was using VMS forged aluminum lug nuts vs the factory 'steel'. I also notice he road races with them. The weight savings is over 2.5 lbs so, I ordered 2 sets (1 for street, 1 for racing) in gun metal gray:

https://www.vmsracing.com/products/c...nt=17511124097





VMS says to use 'torque lube' and torque to 60 lbs MAX:



ARP lube:



Before:



After:





Doc weighed them:

https://www.camaro5.com/forums/showp...7&postcount=85

Very nice...

-Don
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Last edited by hammdo; 04-11-2019 at 09:42 PM.
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Old 04-10-2019, 06:58 PM   #2461
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Chatting with Mark (ABADZL1), he is helping someone install a prometh kit on a ZL1. Found out today that Rodney is no longer using the bigger check valve. He is now using the solenoid:

https://prometh.com/collections/sole...nt=19074395523

Once that gets in, I'll remove the large check value and install this. The brown/white wire from the AEM controller will activate it.

*Should be* a straight forward upgrade...

-Don
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Old 04-11-2019, 12:22 AM   #2462
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Test drove with the new lug nuts — long 1 hr drive at ‘highway speeds’, checked torque afterwards, perfect. I’ll do this after every drive just to be certain...

Waiting on the wing and the solenoid for meth kit. That is about the extent of any ‘major’ projects for me. Fix the scraped racing wheel — drive it!

Any changes after this (long term future) will probably be Racing Brakes rotors for the rear, so I can drop 12 lbs in weight. Fronts are about 4 lbs total but, that would be a long off change. Braille 21 lbs battery (https://www.braillebattery.com/index...atteries/b3121) to shave 28 lbs. Little things ;o)

-Don
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Last edited by hammdo; 04-11-2019 at 12:37 AM.
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Old 04-15-2019, 10:51 PM   #2463
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Meth solenoid came in from ProMeth! Got my extra parts from Summit so, that is good to go (install this weekend). C7 Carbon contacted me and the molds are in production! Got an appointment for the trunk to be painted so that will be coming next.

Can’t wait....

-Don
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Last edited by hammdo; 04-15-2019 at 11:10 PM.
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Old 04-15-2019, 11:08 PM   #2464
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Nice nuts... All the great details...
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