Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

'86 924S suspension upgrades.

 
Post new topic   Reply to topic    924Board.org Forum Index -> Performance Upgrades
View previous topic :: View next topic  
Author Message
Parptarf  



Joined: 19 Jan 2015
Posts: 7
Location: Norway

PostPosted: Mon Jan 26, 2015 2:47 am    Post subject: '86 924S suspension upgrades. Reply with quote

So I might get a 924S and I want to really spice up the suspension of it.
Natrually, I look at coilovers and 968 M030 sway bars.

From what I can gather, the coilovers that fits the 951,944 and 968 will also fit an '86 924S. Buy my question is what else besides the coilovers themself will I need to make it work properly?
_________________
ex 968 owner
Back to top
View user's profile Send private message
Grenadiers  



Joined: 20 Feb 2007
Posts: 3222
Location: Nelson, WI & Prescott, AZ

PostPosted: Mon Jan 26, 2015 3:38 am    Post subject: Reply with quote

One of the best 924S write-ups for track cars. See Installment 8.
http://www.944spec.org/car_build/genikz/
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke
Back to top
View user's profile Send private message
Parptarf  



Joined: 19 Jan 2015
Posts: 7
Location: Norway

PostPosted: Mon Jan 26, 2015 3:41 am    Post subject: Reply with quote

Thanks!
_________________
ex 968 owner
Back to top
View user's profile Send private message
Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11733
Location: PacNW

PostPosted: Mon Jan 26, 2015 5:04 am    Post subject: Reply with quote

It's a mistake to go too far too soon on these cars. A fully refreshed suspension with quality shocks, big sway bars and sticky tires will outhandle almost anything and maintain a nice ride.

Don't install a super stiff coil over setup on day one...it's a Porsche, not a Honda.
_________________
Toofah King Bad
  • WeiBe (1987 924S 2.5t) - 931 S3
Back to top
View user's profile Send private message Visit poster's website
Parptarf  



Joined: 19 Jan 2015
Posts: 7
Location: Norway

PostPosted: Mon Jan 26, 2015 7:10 am    Post subject: Reply with quote

I did own a 968 with quality shocks, big sway bars and sticky tires which I sold this month. I always wanted to get it stiffer, and get more adjustability out of the suspension. That's where the coilovers idea comes from. If I were to go for that, it would most likely be a H&R ClubSport kit. So I'm not gonna buy some cheap set just because I can.



That being said, 968 M030 swaybars, new bushings, H&R lowering springs and koni or bilstein shocks is what I realisticly would go for first.
Braided brake lines, slotted discs and quality brake pads would also be a first. Maybe even the Willwood 4-pot upgrade kit for the front brakes.
_________________
ex 968 owner
Back to top
View user's profile Send private message
fiat22turbo  



Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR

PostPosted: Tue Jan 27, 2015 9:50 am    Post subject: Reply with quote

There was an optional 88 944S rear sway bar that was actually bigger than the 968 bar and it is still available from the dealer.

I'm not a fan of huge bars as they tend to cause inside wheel lift and actually reduce overall available traction if they are too large. They are a more comfortable solution on the street though since you can run less spring to soak up the bumps.

Something to keep in mind though: The 924 is lighter than the 968, so it won't need quite as much effective spring rate compared to a 944 or a 968.

Case in point: my lightweight 79 924 runs 350lb front springs and it was miserable to drive on the street with low-speed understeer prevalent. My 88 951S uses 400lbs front springs and 18" wheels and it is pretty comfy to drive on the street and it handles pretty well. More or less same chassis (my 924 uses 944 aluminum rear trailing arms and fiberlgass 944 quarters)

So before you go and buy a bunch of "ZOMG Imma go so fast" parts, weigh the car with a good set of corner scales and determine if there is weight that needs to be moved, etc. and you can figure out some decent spring and damper rates from there. If I had I would have chosen differently on the suspension setup for my car. Needless to say, I get to do so and re-buy some parts to fix that.

As for suspension pieces I'd look at Ground Control adjustable coil overs on Koni's up front using maybe 250-300lb/in springs (on a standard weight 931/924S) with a set of 26 or 27mm rear torsion bars from CIP1.com and whatever sway bars you want to use.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)
Back to top
View user's profile Send private message Visit poster's website
Parptarf  



Joined: 19 Jan 2015
Posts: 7
Location: Norway

PostPosted: Wed Jan 28, 2015 12:45 am    Post subject: Reply with quote

The only problem with springs is that I need to get springs that are Tüv-certified. There's no way around it if I'm gonna have the car street legal, which I am. From what I hear the H&R ones I'm looking at work just fine, and they lower the car 30mm which is nice.

Struts are a bit different, never heard anyone get in trouble for running non Tüv struts, but I'm pretty sure Bilstein and yellow Koni both have Tüv papers for the 924/944/968 cars. So it's nice to be on the safe side.

What I'm sure of is that I want M030 bars, especially the 19mm rear one. But if the 30mm front bar is too stiff I'd settle for a 26mm stock 968 bar.

I'm by all means open for suggestions on struts and springs(They need to be Tüv-certified) And I'll look into a bigger torsion bar. My car is primarily gonna be driven on the street, used for trackdays and autoslalom.
_________________
ex 968 owner
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    924Board.org Forum Index -> Performance Upgrades All times are GMT + 10 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group