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Suspension Upgrades for a '68 bug
simohagz - July 30th, 2013 at 03:21 PM

As some of you know I am getting stuck into a pan off bare metal resto on a '68 bug and am trying to determine exactly the sorts of "upgrades" that people may have done to improve their bugs!

Having just about decided on an engine (see other thread), I have moved my focus to the suspension/brakes.

As its a '68, it is a ball joint front end with a swing axle rear.
Discs up front and drums out back.

At present, I will be having to replace at a minimum the entire braking system due to the previous owner having parted out most of it...

The suspension is essentially complete.

In terms of suspension my requirements are, in order of importance:
1) Handling
2) Ride quality
3) the "look"

Considering it is all going to be in bits anyway, I am thinking:
- replace all bushings/bearings
- replace ball joints and any other wear parts
- new steering box
- new steering damper
- new shocks (either KYB GR2 all round or some oils up front)
- Camber compensator in the back

Is there anything else I should be doing considering I have the opportunity? Are there upgrades that can improve the handling/ride/looks? I have looked at drop pindles and adjustable beams etc but not really wanting to lower it more than about 1" to preserve as much clearance and ride quality as possible.


In terms of Braking I am thinking just a full set of discs all round. I have no current reason to change to a different studpattern as I am leaning toward running stock steelies with original chromed hubcaps. Should i be reconsidering this? Do other stud patterns offer anything significant? Any recommendations on a full set of discs? Kit etc?

Will be going with s/steel braided lines all round, a larger master cylinder to cope with rear discs and that is about it?

Again, is there any upgrades that are worth doing while the car is in bits and everything is being replaced?




Will be posting up some photos soon! Work to begin on the body in the next month!

Will also be looking for opinions on seats/carpets etc/electrical upgrades (new looms/adding gauges/)/parts to avoid for replacing headlights turn signals etc and basically everything from the front bumper to the rear...only the body is really salvagable...


vwo60 - July 30th, 2013 at 07:03 PM

If you are going to all the work on the car, you should concider converting the car to IRS, i have both ball joint,IRS, ball joint swing axel and the difference is conciderable.


Joel - July 30th, 2013 at 07:26 PM

If handling is your number one priority and you have the body off, as mentioned above its common sense to convert to IRS.

Leave swing axle to the purists not concerned about handling.

Stock front discs and type 3 rear drums is a good combo for brakes.
You need to buy or engineer a good rear disc setup, there are a lot of crap kits on the market.
Stock mastercylinder works quite well with rear discs.


Paulc1964au - July 30th, 2013 at 07:58 PM

well with my 69, i renewed all the ball joints, gas shocks and a two inch narrowed beam and drop spindles


Bizarre - July 30th, 2013 at 07:59 PM

You have not mentioned lowering the car

I am not an expert here, as I have a super beetle but one rule applies to both.

Pick your wheels that you want to run first.

You say handling is important, so I can only assume you will want it slightly lowered at the front and you will want to run as a minimum stock width wheels.

I you are wanting to run anything wider than stock, you man need to consider a narrowed beam

Have a think about what wheels you want, tell us and someone will point you in the right direction

Nothing worse than spending a heap on suspension only to have the wheels stick out like cauliflower ears or rub so much you cant go round corners


matberry - July 30th, 2013 at 08:21 PM

Postup some pics of the 'look' you're after as there are a million combo's out there. It is odd to only lower 1", but you're on the right track trying to get input accross the board before you start getting too far into it. Handling and a good ride are achievable at nearly any ride height when the whole package is done well.


simohagz - July 30th, 2013 at 09:26 PM

Hey guys thanks for the input.

Not concernced with lowering it for the sake of it (been down that path before and regretted it)

In terms of handling, I just want to dial out a bit of body roll and bounce, so an IRS conversion, while a top idea, is probably a bit much.

Mat, I dont really want to lower the car so much as remove the excessive front end height by a bit.

I have attached a photo I consider too high, and one i consider too low. Aiming for something in the middle.

Am I on the right track in terms of replacing bushings/shocks/ball joints etc to tighten her up in the front?


Aussie Dubbin - July 30th, 2013 at 09:44 PM

You sound similar to where I started, have a read through my below race build 68. I hit a few setbacks after buying some cheaper parts without checking their quality!

Pan off IRS conversion will probs only cost 300 odd bucks for someone to cut and weld in pivot boxes. Then you can go IRS at any time when you're ready or right away (insert extra research reading here)

Beam is good consider weld in adjusters and dropped spindles. Adjusters are not that much cheaper than dropped spindles, spindles 'bolt in' and allow a fresh start. Remember to check bearings needed and there are drum and disc spindles so this will effect brake choice.

Rear just settle on factory or factory type 3 rear drums. They work very well and adjustment concerns need to be put at bay. Especially if your tyres will be 205 or smaller.

Buy a new "ATE" master cylinder. Not any other brand! Same with new twin pin front calipers.

Buy Koni or bilstein shocks 4-500 bucks delivered they will sort you out very well

Consider heavier duty rear torsion bars and replace rubbers again genuine.

Shorter throw shifter black mamba or cheaper empi

Matt Berry above is a great source for parts and knowledge. Probably has your stainless steel flixible lines.
There is so much more feel free to ask more


psimitar - July 30th, 2013 at 10:34 PM

Read the handling article on AirCooled.net. Gives great incite into making a Beetle handle.

However, if you wish to start with the best of basics then an IRS conversion is a must. If you can get hold of Porsche 944 adjustable rear arms then even better. These can be sourced from the UK as plenty of scrapped 944s over there.


68AutoBug - July 30th, 2013 at 11:59 PM

Quote:
Originally posted by simohagz
Hey guys thanks for the input.

Not concernced with lowering it for the sake of it (been down that path before and regretted it)

In terms of handling, I just want to dial out a bit of body roll and bounce, so an IRS conversion, while a top idea, is probably a bit much.

Mat, I dont really want to lower the car so much as remove the excessive front end height by a bit.

I have attached a photo I consider too high, and one i consider too low. Aiming for something in the middle.

Am I on the right track in terms of replacing bushings/shocks/ball joints etc to tighten her up in the front?


Yes, replace all You can afford so its like a new car back in 1968..
they drove well back then and it will drive like new.. again..
Supers are very high in the front.. But all beetles were too high in My opinion too..
I just read a book on VW performance and the Biggest improvement they said was to add a thicker front swaybar plus a rear sway bar..

cheers

LEE in Upper Hunter Valley NSW

PS Where are You located??


vwo60 - July 31st, 2013 at 07:31 AM

Avoid narowing the beam, do some research and get wheels that have the correct offset to suit your suspension set up, it will pay off in the long term with better handling and less wear on the inner trailing arm bushes and ball joints.


simohagz - July 31st, 2013 at 07:34 AM

Psimitar - thanks for the article, a very good read

Lee, located on Sydneys Northern Beaches.

I am planning to run stock steel rims with chrome hubcaps so wheel clearance wont be an issue.
The car is definately more of a cruiser than a racer.

I guess ideally the best option for a compromise is probably new bushings/bearings/joints etc and a thicker swaybar?

I really want to keep it a swinaxle as the resto is quite close to original and I dont want to move away from that.


HappyDaze - July 31st, 2013 at 07:53 AM

Sounds like a good decision....nothing wrong with swing-axles:smirk:. I don't think a rear sway-bar is a good idea, just remove the 'slack' from the 'Z' bar. Invest in a set of good tyres.


matberry - July 31st, 2013 at 08:33 AM

As Greg has said, a good basic set-up beetle handles very well. I prefer IRS when chasing good handling esp. if left soft for travel. Don't go replacing everything unless it needs it, steering box, beam bushes, and even ball joints, the old ones, if not worn, can out-last new ones, and if replacing, get German where-ever possible.


simohagz - July 31st, 2013 at 09:02 AM

Cheers everyone.

If i weld in front beam adjusters, is it possible to drop the front just a tiny bit retaining stock everything else?
Or will this gives me camber/castor/bump stop issues?

Re: replacing everything.
I am just going to order oem vw bearings/bushings for everything. Is there anywhere that actually benefits from urethane? Gearbox mounts? Shift coupler? Anything i should be doing in urethane?

Cheers guys!


ian.mezz - July 31st, 2013 at 10:05 AM

I think there was list of stuff some where think it was on the club vw website.
or vintage vw might of had a parts list combo.???


HappyDaze - July 31st, 2013 at 10:07 AM

I can't think of ANYTHING that should be in urethane.:no:


matberry - July 31st, 2013 at 11:15 AM

I agree for minimal lowering adjusters only is the way to go.

Urethane... I only use the engine mounts if a mid trans mount is used as well and for 100+ hp, I also use it for torsion bushes IF drag race starts or burn-outs are desired. Definately not in the front.

Even a replacement shift coupling, use only what you need to, the hardware and frame all need mods to make them work/last.


psimitar - July 31st, 2013 at 07:20 PM

Urethane is fine just so long as it ain't EMPI. Their urethane is too hard and brittle due to being cheaply made.

Superflex and Pedders urethane is much better quality but only a few Beetle bushes could be found from bush dimensions as they make not specifically for the old Beetle.