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-   -   1969 Camaro tru-turn (https://www.lateral-g.net/forums/showthread.php?t=44918)

cwylie 03-18-2014 12:35 PM

Here is a thread on LS1tech with a bunch of fitment info on the Tru turn and the new holley engine and trans mounts. Hopefully it will give others an idea of what oil pans, motor mounts and headers can and cant be used with the tru turn setup.

http://ls1tech.com/forums/conversion...h-truturn.html

Question for Ridetech. What pitman and idler arms were used when you measured the bump steer? Stock my car came with two different length arms as did most 69's from what I can tell.

paulk68 03-19-2014 07:10 AM

Thank you very much for all the detail you put into these posts. I wonder how the mid sized headers would work instead? Do you think they would still be in the way?

Blake Foster 03-19-2014 08:19 AM

IT APPEARS that the Speedtech Ls headers will fit with no issues. I am just checking today if the ATS oil pan and our new frame stands for the engine mounts will work also.

cwylie 03-19-2014 08:23 AM

Are the speedtech headers being produced again? I think the mid length headers would fit without a problem from what I have seen. Todd from holley may be able to confirm.

paulk68 03-19-2014 08:54 AM

Quote:

Originally Posted by Blake Foster (Post 542345)
IT APPEARS that the Speedtech Ls headers will fit with no issues. I am just checking today if the ATS oil pan and our new frame stands for the engine mounts will work also.

Very intersted in hearing your results, is that on a stock subframe our your subframe?

Regal454 03-19-2014 12:20 PM

Quote:

Originally Posted by paulk68 (Post 542338)
Thank you very much for all the detail you put into these posts. I wonder how the mid sized headers would work instead? Do you think they would still be in the way?

The new Hooker 2473-HKR headers will clear the Ridetech Tru Turn. Take a look at this thread:

http://www.pro-touring.com/threads/1...73-HKR-Install

Rod P 03-19-2014 01:22 PM

Quote:

Originally Posted by jlwdvm (Post 541299)
After much research, head scratching, and re-reading this thread 3-4 times I finally ordered V40 rims...18x9.5" with 6" back spacing for the front and 18x11 with 7" for the rear. Hopefully that gets me close at both ends of the car, but I guess I can always use a spacer if needed. That's why I erred on the side of having a little too much back spacing, rather than not enough.


18x9.5" with 6", excellent! and having a spacer or many spacers is a good tuning tool also, I use 2 spacers (0.095 in.each) 2 each side of my 9.5 rims with 5.5 back spacing to adjust turn-in (i think its called scrub radius) I dont really know, I do know on my camaro if I want a tighter turn in on certain tracks I remove both spacers and the car turns in faster like a beast almost twitchy...but faster longer tracks I add spacers as needed to slow down the turn in, for me...its a quick and dirty way to adjust so steering without changing toe-in or camber

glr0212 03-19-2014 01:39 PM

Got any pics or videos of those real world 69's with the tru turn?

Blake Foster 03-20-2014 08:00 AM

Quote:

Originally Posted by paulk68 (Post 542349)
Very intersted in hearing your results, is that on a stock subframe our your subframe?

That is on a stock Sub frame. looking at the pictures the headers are nowhere even close to where the steering would be. the only question I need to answer is if the ATS oil pan will clear the truturn components and I will know that in the next couple days

jlwdvm 03-20-2014 09:23 AM

Hopefully my wheels will be here soon so I can get them mounted up to see what mods will be needed to get them to fit. I'm also waiting on Speed Tech to see how there parts work with the Tru Turn before I order anything. My 570 horse LS3 should be here from Texas Speed tomorrow and I am talking with Bowler Transnmissions about getting an order together for a T56 and everything else needed to get it installed. It is amazing how quickly you can spend money on these things!

paulk68 03-20-2014 09:25 AM

Quote:

Originally Posted by Blake Foster (Post 542503)
That is on a stock Sub frame. looking at the pictures the headers are nowhere even close to where the steering would be. the only question I need to answer is if the ATS oil pan will clear the truturn components and I will know that in the next couple days

Thank you very much I can not wait to see what you find cuz I would like to order my setup soon

glr0212 03-25-2014 09:08 AM

Quote:

Originally Posted by jlwdvm (Post 539644)
I re-read the complete thread again and am trying to figure out how switching between a 9 and 10" wheel alters how the wheel and tire combo fits in the wheel well, with the the 275 tire size and back spacing remaining the same. The V40's I want to use max out at 9.5" wide, and I'm thinking with my Wilwoods at +0.38" I will need to use 6" backspacing. Thoughts?

You are a brave soul. I'm still waiting on the visual evidence on a real life running driving 69 camaro.

cwylie 03-25-2014 09:39 AM

Quote:

Originally Posted by glr0212 (Post 543279)
You are a brave soul. I'm still waiting on the visual evidence on a real life running driving 69 camaro.

Have you measured your backspace yet just to verify it is what you think it is?

jlwdvm 03-25-2014 10:52 AM

See last post: http://www.pro-touring.com/threads/1...Grip-69-Camaro

glr0212 03-25-2014 02:45 PM

I did measure. Im around 6.125-6.25 BS

Sweet thread by mr david on the other site. I posted up.some detail questions. Hopefully he will respond with some more info we can add to this thread.

His car sits low, I'm surprised it works.

Stovebolter 03-27-2014 11:59 AM

Hello. Thought I should mention that I failed to mention the pictures I have provided thus far was not at ride height with the exception of the picture looking from the rear of he car toward the front. But you can't see much of the front in that picture. Sorry guys. In most of the pictures the air coils were deflated completely.

David

jlwdvm 04-07-2014 06:32 AM

Time to come up with a plan for the fender lip! See post #56:
http://www.pro-touring.com/threads/1...76#post1061576

jlwdvm 04-12-2014 08:05 AM

The verdict...well, part of it.
 
I set the car at a ride height of 23 7/8" and turned the tires lock-to-lock in both directions and the results are: Full right turn- driver's side has 1/4" clearance from the bottom of the fender to the tire and passenger has 1/8" clearance. On a full left turn the driver's side has just over 0" clearance and barely touches the sub frame. Passenger side has 1/4" clearance.

Fender clearance becomes an issue on compression of the outside suspension on a hard turn. The fender (at least mine) will need to be massaged to gain clearance so the tire doesn't rub when the car rolls over during the turn. The inner fender will need some work so that the top of the tire doesn't hit on compression as well.

All in all, I think things turned out better than I expected. I am using a 275 Toyo R888 with a 18x9.5 rim with 6" back space. Camber was set at 1.7ish negative.

My car is still in primer with original front fenders that have inner lips that have been bent a little somewhere along the way. I tentatively plan on cutting out a section of the fender lip and welding in a new one that angles almost straight up to gain clearance on hard turns. That plan could change!

mfain 04-21-2014 09:43 AM

1 Attachment(s)
Don't know if this will help you, but it is a technique I use to verify clearance on not only the wheel lip, but also things like inside fender panels, brake lines, the control arms and tie rod. I build a tire/wheel profile out of plywood and bolt it to the front and back of a plywood disk that replicates the tire diameter. Then I remove the springs and run the suspension through its entire travel, rotating the wheel to check clearance on various components. The technique has proven especially valuable with very high travel suspensions. Unfortunately, the solution to issues usually involves a chainsaw. LOL

Pappy

Attachment 47486

glr0212 05-06-2014 07:19 AM

Quote:

Originally Posted by jlwdvm (Post 546516)
I set the car at a ride height of 23 7/8" and turned the tires lock-to-lock in both directions and the results are: Full right turn- driver's side has 1/4" clearance from the bottom of the fender to the tire and passenger has 1/8" clearance. On a full left turn the driver's side has just over 0" clearance and barely touches the sub frame. Passenger side has 1/4" clearance.

Fender clearance becomes an issue on compression of the outside suspension on a hard turn. The fender (at least mine) will need to be massaged to gain clearance so the tire doesn't rub when the car rolls over during the turn. The inner fender will need some work so that the top of the tire doesn't hit on compression as well.

All in all, I think things turned out better than I expected. I am using a 275 Toyo R888 with a 18x9.5 rim with 6" back space. Camber was set at 1.7ish negative.

My car is still in primer with original front fenders that have inner lips that have been bent a little somewhere along the way. I tentatively plan on cutting out a section of the fender lip and welding in a new one that angles almost straight up to gain clearance on hard turns. That plan could change!


Any Updates? Any idea where your alignment sits? How many shims do you have? That would help me. I've stuffed another 3/8 worth of shims in the cross member but I cant put the car on the ground until I get my rear end back from the shop.

CamaroMike 05-06-2014 08:12 AM

Anyone get 305's under the front yet? If mine was painted already I would pull the fenders. I want to run a square setup.

bret 05-06-2014 10:57 AM

Quote:

Originally Posted by CamaroMike (Post 549193)
Anyone get 305's under the front yet? If mine was painted already I would pull the fenders. I want to run a square setup.

Fender flares are in your future. Keep in mind this will require you to start over in tuning spring rates, shock valving and swaybar rates because the centerline of the wheel/tire will be moved outboard by about 5/8"...along with the extra potential grip from the wider tire. Will it look cool? Probably. Will it be faster? Maybe. Eventually.

CamaroMike 05-06-2014 11:25 AM

Quote:

Originally Posted by bret (Post 549222)
Fender flares are in your future. Keep in mind this will require you to start over in tuning spring rates, shock valving and swaybar rates because the centerline of the wheel/tire will be moved outboard by about 5/8"...along with the extra potential grip from the wider tire. Will it look cool? Probably. Will it be faster? Maybe. Eventually.

The good news is im still on 100% stock suspension so I can go any route with that. I am fairly certain the amount of work compared to how much lap time it will scrub is not worth it at all but I think it will look pretty good. Thanks for the input Bret, nice to see the big guys active on here!

Blake Foster 05-09-2014 07:12 AM

Quote:

Originally Posted by mfain (Post 546560)
Don't know if this will help you, but it is a technique I use to verify clearance on not only the wheel lip, but also things like inside fender panels, brake lines, the control arms and tie rod. I build a tire/wheel profile out of plywood and bolt it to the front and back of a plywood disk that replicates the tire diameter. Then I remove the springs and run the suspension through its entire travel, rotating the wheel to check clearance on various components. The technique has proven especially valuable with very high travel suspensions. Unfortunately, the solution to issues usually involves a chainsaw. LOL

Pappy

Attachment 47486

Flintstones............... meet the Flintstones. Well THAT will never work...... it's WAY too Simple!

glr0212 05-09-2014 10:02 AM

Can anybody give me an idea how many shims I need to hit -1.5 camber and 6 caster?

I know every car is different but id like to get some idea what it looks like

Damn True 05-09-2014 11:15 AM

Quote:

Originally Posted by glr0212 (Post 549779)
Can anybody give me an idea how many shims I need to hit -1.5 camber and 6 caster?

I know every car is different but id like to get some idea what it looks like

With the degree of variation from plant to plant and even within plants in the same model year there is no way to give you this estimate with any degree of reliability. Throw enough shims in there to clear the tire so it'll roll and take it to an alignment shop.

Rod P 05-09-2014 01:30 PM

Quote:

Originally Posted by glr0212 (Post 549779)
Can anybody give me an idea how many shims I need to hit -1.5 camber and 6 caster?

I know every car is different but id like to get some idea what it looks like

there's no set amount...due to factory tolerances back then, and after 40+ years everything is askew, on that note I put 2 1/8 shims on each bolt to start on my installs, hope that helps as a starter

bret 05-09-2014 01:53 PM

Quote:

Originally Posted by Damn True (Post 549788)
With the degree of variation from plant to plant and even within plants in the same model year there is no way to give you this estimate with any degree of reliability. Throw enough shims in there to clear the tire so it'll roll and take it to an alignment shop.

...or buy some basic alignment tools and align it yourself. It's not that hard. http://www.ridetech.com/store/quickt...-22-wheel.html

Bad94 05-11-2014 09:04 AM

Quote:

Originally Posted by glr0212 (Post 549779)
Can anybody give me an idea how many shims I need to hit -1.5 camber and 6 caster?

I know every car is different but id like to get some idea what it looks like


Put 1/4" in the front and 1/2" in the rear and see how that looks, then do alignment.

jlwdvm 05-12-2014 10:19 AM

I have an LS3 with a Corvette accessory drive system on it. It looks like I will be limited to about 3/4" of shims on the front of the A-arm on the drivers side before it starts to hit the PS pulley. Any chance I will need this many shims to get 1.5-2 degrees of negative castor?

bret 05-12-2014 11:12 AM

Quote:

Originally Posted by jlwdvm (Post 550284)
I have an LS3 with a Corvette accessory drive system on it. It looks like I will be limited to about 3/4" of shims on the front of the A-arm on the drivers side before it starts to hit the PS pulley. Any chance I will need this many shims to get 1.5-2 degrees of negative castor?

Depending on the tolerances and condition of your subframe you should be able to get a bunch more caster with that many shims.

jlwdvm 05-12-2014 01:21 PM

Oops...I meant camber.

Bad94 05-12-2014 05:13 PM

Quote:

Originally Posted by jlwdvm (Post 550284)
I have an LS3 with a Corvette accessory drive system on it. It looks like I will be limited to about 3/4" of shims on the front of the A-arm on the drivers side before it starts to hit the PS pulley. Any chance I will need this many shims to get 1.5-2 degrees of negative castor?

What slugs you got in the upper arms?

jlwdvm 05-13-2014 05:02 AM

Center hole slugs.

David Pozzi 05-13-2014 03:19 PM

Place a two foot long carpenters level up against the tire. the part of the tire that contacts the level will be around 20" apart. Using those points, the tire will have a gap at the top of around 1/2" at 1.5 degees neg camber.

glr0212 05-14-2014 12:18 PM

Quote:

Originally Posted by David Pozzi (Post 550506)
Place a two foot long carpenters level up against the tire. the part of the tire that contacts the level will be around 20" apart. Using those points, the tire will have a gap at the top of around 1/2" at 1.5 degees neg camber.

Thanks David. That's a great idea for a quick check. I was getting a little worried because my shims were stacking up over half an inch.

Regal454 06-20-2014 01:56 PM

Wow my head is spinning after reading through this whole thread again. I just measured my 69 Camaro last night and ended up ordering 18x9's with 6.125" backspacing. I found on my car that a 6" BS would be ideal but erred on the side of caution and went with another 1/8" of BS figuring I can run a shim. (Edit: I am running the std C6 corvette brakes with the Kore3 hubs which reduces the front track width .24" per side.). I plan on running my car at the same ride height as the Blue Ridetech Camaro mentioned earlier in this thread, 23 3/8" from ground to wheel molding. Even with that, the tire looks like it will get into the outer fender with anything greater than 2" of compression from ride height at full lock. (Edit: this was tested at -1 degree of camber)

It looks like I will have to weld washers on the lower control arms to limit the turning radius just a hair, but I don't fore see it affecting drivability that much. Otherwise the tires will lightly hit the frame and sway bar.

Has anyone with a 69 Camaro and the Ridetech Truturn have any real world feedback on their tire/wheel combination?

garymac69 06-24-2014 05:24 PM

Ridetech TruTurn on my '69
 
I have been running the Ridetech TruTurn on my '69 for 1 1/2 years. I went with a 18"x9" wheel with 5 3/4" B.S. (275 mm tire) but wish I had gone with 6" for a little more clearance. I am at 23 3/16" from ground to lip of wheel opening. My alignment settings are -0.8 Camber and +5 1/2 Caster. I drilled & tapped the lower control arms and added a bolt to limit turning radius and prevent rubbing on the sway bar and frame. On occasion the tire rubs the top lip of the fender at full lock if also navigating over rough terrain (parking in a field). I just touch up the paint under there a couple times a year.

Gary

Quote:

Originally Posted by Regal454 (Post 556847)
Wow my head is spinning after reading through this whole thread again. I just measured my 69 Camaro last night and ended up ordering 18x9's with 6.125" backspacing. I found on my car that a 6" BS would be ideal but erred on the side of caution and went with another 1/8" of BS figuring I can run a shim. (Edit: I am running the std C6 corvette brakes with the Kore3 hubs which reduces the front track width .24" per side.). I plan on running my car at the same ride height as the Blue Ridetech Camaro mentioned earlier in this thread, 23 3/8" from ground to wheel molding. Even with that, the tire looks like it will get into the outer fender with anything greater than 2" of compression from ride height at full lock. (Edit: this was tested at -1 degree of camber)

It looks like I will have to weld washers on the lower control arms to limit the turning radius just a hair, but I don't fore see it affecting drivability that much. Otherwise the tires will lightly hit the frame and sway bar.

Has anyone with a 69 Camaro and the Ridetech Truturn have any real world feedback on their tire/wheel combination?


31069ss 06-29-2014 10:14 AM

I have a 69 nova with 383 stroker , hooker super comp headers . I want to
Get the true then set up to guy a 275 under my car .... Is there going to be any issues due to my oil Pan or headers ? And if you get tru turn do you have to you the muscle bar sway bar or can i still use my dse sway bar

Regal454 06-29-2014 11:14 AM

Quote:

Originally Posted by 31069ss (Post 557942)
I have a 69 nova with 383 stroker , hooker super comp headers . I want to
Get the true then set up to guy a 275 under my car .... Is there going to be any issues due to my oil Pan or headers ? And if you get tru turn do you have to you the muscle bar sway bar or can i still use my dse sway bar

What oil pan are you currently using?

The Ridetech front sway bar will probably add additional turning radius over the DSE bar.


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