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98 Z28 build is moving along now

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Old 02-25-2017, 05:34 PM
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Stock front swaybar?
Old 02-25-2017, 05:44 PM
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Yep, they are they best. LOL

No, just something easy to change later. Right now I'm trying to get it on the ground and ready for an alignment.
Old 02-26-2017, 03:03 PM
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Hubs and brakes mounted, even bleed it. I need to get my half of an X pipe back on with O2 sensors. Attach rear sway bar and mount wheels so I might get it set on ground again tonight. :-)

Old 02-28-2017, 08:13 AM
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Got the half X pipe on and started rewiring the wheel speed sensors. I'm just running the wires away from the hot parts instead of as close to them as possible. It got a little late so I thought I'd put it on the ground to finish the rest, but my jack quit on me.





Old 03-01-2017, 09:25 PM
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Got a new jack today and got it on the wheels. I think I need to lower the back a little. Does anyone have stock ride height numbers?


Old 03-02-2017, 05:58 AM
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I don't have stock, but I could give you numbers for a strano/Koni setup as a reference later tonight:

Old 03-02-2017, 09:09 AM
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Yeah, it you can tell me where you are and how much it was suppose to change from stock then that should work out. Can you measure from hub center to fender? That way tire size isn't a factor. I've been putting one lug to the top and measuring to the fender to track the movements on mine. Problem with that is it will change a little depending on lug nuts, but far less than different tires can mess things up.

For now I can use the body line and start coming down to get it closer.
Old 03-02-2017, 01:24 PM
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I can't tell you what stock was or "should be" since build variations will make that differ.

But I can tell you what my car is now. IMO you can pick any ride height you want, get it aligned and off you go.
Old 03-02-2017, 04:24 PM
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Center of wheel to fender:
Front 345mm
Rear 360mm
Old 03-02-2017, 04:41 PM
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What were the springs you have suppose to change the height? Most say they lower about ____ from stock front and _____ from stock rear. Strano said that about 1 to 1.5 lower than stock is the best target. I'm hoping I can go there and have enough room for new exhaust without any clearance issues.

Thanks for the numbers. It's way better what I had to work with before.
Old 03-02-2017, 05:00 PM
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I have strano spring so I guess add roughly 25.4mm (1") to my heights if you want to get a ballpark for "stock height".

IMO stock height doesn't matter. Set the car up how you want it. Get the exhaust on and see how low you want to make it to feel comfortable not to drag exhaust. With my PS headers, I'd like them to tuck higher. I did redo my exhaust to maximize ground clearance as well:



Black bar you see is the subframe connector:



Old 03-03-2017, 10:09 AM
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There is a limited area where the camber will work as desired and once you go to low you start to loose it and this is why you don't want to go passed 1.5" lowered. I've come down 20 threads on each front which has me at 2.75" above your measurements. Right now my secondary lowest point is 5.25" from the ground. I need to see how much it's sagged from no support. I think I'll come down another 1" in front and then bring the rear down a little before measuring everything I can find under their.


Old 03-03-2017, 05:37 PM
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Originally Posted by Crf450r420
Got a new jack today and got it on the wheels. I think I need to lower the back a little. Does anyone have stock ride height numbers?
Not scientific and on a trans am vs a camaro but roughly tire to fender I could easily fit three fingers tall in the front and a whole fist or more in the rear, but my car was one of those 4x4 package cars that sat high from the factory.
This is the best before/after comparison pic I have with the car at the same angle.
Attached Thumbnails 98 Z28 build is moving along now-before-after.jpg  
Old 03-03-2017, 06:51 PM
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What were your tire sizes. I can use that to figure the sidewall height and scale it to measure the gap. I think only the top model of each didn't come with the truck lift kits.
Old 03-03-2017, 08:08 PM
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Originally Posted by Crf450r420
What were your tire sizes. I can use that to figure the sidewall height and scale it to measure the gap. I think only the top model of each didn't come with the truck lift kits.
Stock 17x9" wheels, 275/40/17 stock goodyear eagle F1 tires in picture. Car is a real WS6, stock springs in top pic, strano springs in bottom pic, around 40-50K miles in pictures, both have Koni SAs but that didn't effect height at all.
Funny you say that it seems that there were a lot of WS6s that sat really high but the SS's and firehawks didn't seem to sit as high (maybe an illusion on the camaro since the body and fenders are a little different).
Seems to be hit or miss with the base trans ams and formulas sitting high.

I would just get it to where you like the look and feel the car is at a functional height, and can get a function alignment and ideally corner balance the car. You can call whoever you bought from and im sure they can give details on dialing in height.
Old 03-03-2017, 08:27 PM
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I'm trying to get measurements because I think it's only going to look good to me when it's to low. So, I'm going to aim for the 1 to 1.5" Strano recommended if exhaust will allow.

Last edited by Crf450r420; 03-05-2017 at 11:22 AM.
Old 03-05-2017, 11:17 AM
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I have it down 22.5 turns up front and it's at 16" to center or 406mm. I measured 414 in the picture above. Also it puts the body line just a few mm above the lip on the rim so it must be close to stock. I wish I could put on my drive shaft loop to use it as a measure point. I saw someone posted a corvette factory settings and wished there was a Camaro one. I looked in the manual to find this, but I don't know where they go.


Old 03-12-2017, 11:40 AM
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Finally settled on a starting point of 25 threads down from the top in front and 6 down from the top on rear. This has me at 15.25" to hub center or 27.5" to ground from fender in front and 15.5" or 27.625" rear.




Now I'm trying to figure out how to get this adjustable rear sway bar on my 12 bolt. I'm hoping it works, but I worry this has bends that won't work with my Watt's link. I'll find out here soon enough.



Funny, I emailed Strano to ask about clearance on the coilovers and if the UMI new bars were ready. He said his adjustable clears fine and no need to wait. Ordered the next day and the front bar is on back order, so now I'm waiting on that.

I also, installed my bit of exhaust (what is left of it that holds the O2s) and intake back on the car. I put heat shielding on the fuel lines I thought could use it by the header. I got this stuff from Improved racing when I ordered the baffle and it's looks like great stuff.








Not sure if I showed these before. These are the custom adjustable stainless steel mounts I made for Holley fuel rails. With these we have not found an intake and injector combo we couldn't get to work, but we certainly have not tried them all. Also, no rust issues ever.
Old 03-13-2017, 06:37 AM
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What brand rear bar is that? Thise mounts look like what I have and mine is Hellwig.
Old 03-13-2017, 09:01 AM
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Strano's adjustable.


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