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Old 01-19-2015, 09:15 PM
spctomlin spctomlin is offline
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Y'all are helping me tremendously here so much thanks, guys. Lots of questions are developing as I start to piece this information together but let's start with the tires as I clearly need more than I have. The car has about a 1" drop now. I plan to replace the poly subframe bushings with solid aluminum immediately. I guess I'll go with the units that are 1/2" shorter than stock. So at a 1 1/2" drop what is the max wheel/tire size I can fit front and rear and with what back spacing? Sounds like 275/40-17 on a 9 or 9.5 for rear but not clear on front...or I guess it depends on how the front is set up???
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Old 01-20-2015, 07:07 AM
spctomlin spctomlin is offline
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So at a 1 1/2" drop what is the max wheel/tire size I can fit front and rear and with what back spacing? Sounds like 275/40-17 on a 9 or 9.5 for rear but not clear on front...or I guess it depends on how the front is set up???
Found it. Perfect and looks great.

You're holding out on me, Sieg.

https://lateral-g.net/forums/show...0&postcount=20

So the only issue I'd have to contend with if running 4.75-5.5 and 245-275/40 is the inner fender well bolt heads? And that's with my stock front discs or, looking down the road a bit, an upgraded brake set up? And how does any mod I may perform to correct the camber issue going to play into this?

Last edited by spctomlin; 01-20-2015 at 07:17 AM.
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Old 01-20-2015, 07:24 AM
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Sieg Sieg is offline
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Found it. Perfect and looks great.

You're holding out on me, Sieg.

https://lateral-g.net/forums/show...0&postcount=20
Hey.........I'm not your mother.

I also used black oxide button head socket cap screws for the fender to inner fender attachment at the top of the wheel well as I was getting a little contact on driveway approaches.
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Old 01-20-2015, 07:30 AM
spctomlin spctomlin is offline
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Hey.........I'm not your mother.

I also used black oxide button head socket cap screws for the fender to inner fender attachment at the top of the wheel well as I was getting a little contact on driveway approaches.
HA! I'm fiercely independent so trust me when I say it pains me to be in a position where I have to ask for so much help. Being severely deficient of free time makes me wonder if I should even be messing with this stuff. Hey, at forty-four I'm needing to stay a little irresponsible so I don't, you know, grow old.

Back to being responsible.
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Old 01-20-2015, 08:17 AM
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HA! I'm fiercely independent so trust me when I say it pains me to be in a position where I have to ask for so much help. Being severely deficient of free time makes me wonder if I should even be messing with this stuff. Hey, at forty-four I'm needing to stay a little irresponsible so I don't, you know, grow old.

Back to being responsible.
don't grow up its a trap.....
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Old 01-20-2015, 09:02 AM
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HA! I'm fiercely independent so trust me when I say it pains me to be in a position where I have to ask for so much help. Being severely deficient of free time makes me wonder if I should even be messing with this stuff. Hey, at forty-four I'm needing to stay a little irresponsible so I don't, you know, grow old.

Back to being responsible.
The car looks good! Little altitude challenged but good.

If you don't ask you don't learn. Asking focused questions around here get's you a free education and saves a lot of time and money. Learning the search feature can produce surprising results too!

My car handles surprisingly well considering it has few aftermarket parts. I think it shouldn't handle as well as it does, though I've never had it on the track to push the setup past the limit, and I refuse to explore the limit on the street though I've flirted with it more than once but you don't know exactly until you've taken it beyond the limit. As is I believe it would do alright on the track.........it certainly wouldn't set lap records, but wouldn't be scary or embarrassing either.

I've had it 25 years and maintained a frugal budget. It has stock control arms and bushings with old HO Performance front coil springs with Koni's up front, stock 5/8" bar, Global West rear leafs -2" which were labeled "Special" when I bought them and are now referred to as L-2's. The front spring rate is pretty stiff as is the rear which keeps the roll rate down. The rear spring is the standard eye configuration with poly bushings.

As CurtiSS mentioned the stiffer rear spring made it loose in the rear especially with older smaller 245 tires. Going to 200TW 275's pretty much eliminated worrying out losing the rear unexpectedly on the street. Though I miss dirt tracking a few favorite freeway approaches.

Ideally what I'd like to improve without altering the current stance........add approximately 1" more travel front and rear while maintaining similar roll characteristics.

To do this up front I need to verify the front spring OAL and rate and probably change spindles. I have a Hotchkis tubular bar and springs sitting on the shelf that may find their way on the car after it's torn apart and measured. I'm also leaning towards GW's upper A-arms shafts and Del-A-Lum upper and lower bushings.

The rear springs have a spacer that's about 1", I'm considering the GW Cat-5 -2" w/ reverse eye spring kit may work well and minimize or eliminate the blocks. GW's spherical bearing should improve (smoothen) the feel as well as limit lateral movement during cornering.

The Koni shocks are good but I think a modern adjustable shock like RideTech's HQ may deliver a smoother ride with more range of adjustment.

That's the basic simple man's plan but it needs to be disassembled and thoroughly measured to know what will work.

Hope that gives you a little food for thought.
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Old 01-20-2015, 07:26 AM
spctomlin spctomlin is offline
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Here's a pic of the car so you can see what I'm workin' with...
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Old 01-20-2015, 12:50 PM
CurtiSS 69 CurtiSS 69 is offline
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Found it. Perfect and looks great.

You're holding out on me, Sieg.

https://lateral-g.net/forums/show...0&postcount=20

So the only issue I'd have to contend with if running 4.75-5.5 and 245-275/40 is the inner fender well bolt heads? And that's with my stock front discs or, looking down the road a bit, an upgraded brake set up? And how does any mod I may perform to correct the camber issue going to play into this?
Carl Casanova has done the 9.5" wide wheel successfully on a 68. http://www.pro-touring.com/threads/5...t-gen-subframe
With Carl's lead I have as well. Check it out.

As far as wheels: get at least 18's, so you will find more tires at 275, and have room for larger brakes.


Regards

DEC
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Old 01-20-2015, 02:24 PM
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Originally Posted by CurtiSS 69 View Post
Global West. They are 800lb/in units. I asked for 650's and they sent me 800's. I called them back, and they told me I have the right springs and hung up LOL! When I did get talk to them they had done extensive testing setting up a very similar car and found these to be the right springs. They have worked out well. The ride is about like a stock M3.
800 is a good spring



Quote:
Originally Posted by CurtiSS 69 View Post
Carl Casanova has done the 9.5" wide wheel successfully on a 68. http://www.pro-touring.com/threads/5...t-gen-subframe
With Carl's lead I have as well. Check it out.

As car as wheels: get at least 18's, so you will find more tires at 275, and have room for larger brakes.


Regards

DEC
Carl had .....I believe the factory z28 steering arm....I used the same steering arm before I went to the tru-turn system and I also ran 9.5 inch wide rims with 275's on the front

the z28 steering arms is much shorter and turns in more for better ackerman...remember they were running FAT rims on the trams-am cars back in the 60's and 70's...I pointed that out years ago and had a bunch of folks telling me on some forums, it wasn't true.... I was lucky enough at a restoration company I was at for many years to have not one but TWO original vintage trans-am Camaros to study
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Old 01-24-2015, 08:30 AM
spctomlin spctomlin is offline
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You all are providing extremely helpful info and suggestions....thanks a million for taking the time to get me up to speed. I'll digest all of this, do some more research and start formulating a plan. It's tough to resist blowing the budget, but the sensible side of me is saying the conservative approach will almost certainly wind up costing me more money or leave me unsatisfied in the long run. What I should really do is try to locate some first gen Camaros in my area with a host of different suspension mods to see what does what. Fortunately my neighbor has three and they are all very nice builds. He's more straight line oriented and has a nearly unlimited budget (and his builds reflect that) with all his cars having four links...not sure what he's done to them up front....but at least it's something to work with rather than just reading about it. A customer of mine mentioned he just got a full Hotchkis TVS kit in to install on a customer's second gen Camaro, so maybe he'll have that wrapped up in the near future and I can get a ride in it, as well. With almost all of my customers being racers, rodders or shops that restore, build and fabricate I might just be able to locate a few capable first gen g-machines in spite of that not being a popular type of build around here.

Last edited by spctomlin; 01-24-2015 at 08:34 AM.
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