Porsche Enthusiasts Club Forum

It is currently Fri Jun 27, 2025 7:03 pm
Classic Line Insurance


All times are UTC




Post new topic Reply to topic  [ 14 posts ] 
Author Message
 Post subject: lowering the rear of a 924s ?
PostPosted: Mon Mar 29, 2010 3:22 pm 
Offline

Joined: Fri Sep 12, 2008 9:19 am
Posts: 30
Location: Walsall
TIPEC membership: 5185
Hi can somebody shed some light on how to lower the rear on a 924s by 20mm,i have looked and scratched my head is there any other way than dropping the rear right of ?


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Mon Mar 29, 2010 4:51 pm 
Offline

Joined: Sun May 31, 2009 3:59 pm
Posts: 924
Location: Bath, UK
TIPEC membership: 5406
Someone with more knowledge will come along I have no doubt, but I think you can rotate the torsion bar?

Regards
Paul

_________________
1985 928 S2 Iris Blue
2006 A6 3.0 Quattro
2003 4.7 H.O Grand Cherokee

Gone but not forgotten:
1986 944 Lux
1988 944 Lux

Location - Near Bath in South West


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Mon Mar 29, 2010 6:30 pm 
Offline

Joined: Thu Nov 15, 2007 6:44 pm
Posts: 721
Location: Towcester, Northants
TIPEC membership: 4288
I assume the rear set up is the same a 944?

If so you can lower the rear a certain amount on the eccentrics, if this is not enough you need to re-index the torsion bars - big job.

http://web.archive.org/web/200412152007 ... &id=62&c=4

Rich


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Mon Mar 29, 2010 6:40 pm 
Offline

Joined: Fri Sep 12, 2008 9:19 am
Posts: 30
Location: Walsall
TIPEC membership: 5185
Hi Rich just the job answer my question and looks like i can gain what i need'as you say a massive job to adjust the torsion bars again many thanks.


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Mon Mar 29, 2010 7:21 pm 
Offline

Joined: Sun Feb 24, 2008 7:16 pm
Posts: 1891
Location: UK
TIPEC membership: 0
If it is the same as the 944 I think you need a 36 mm spanner and a hefty breaker bar too, I've got both but I still couldn't shift mine.


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sat Apr 03, 2010 10:29 pm 
Offline

Joined: Sun Jan 24, 2010 12:07 am
Posts: 2381
TIPEC membership: 0
I will check tmw, but I'm sure I read in the peter morgan book, that u can gain 1" by turn the rear shocks upside down. Well something along them lines.

_________________
Zermatt 88 944 turbo
Augtronic ecu&map
3071gtx/0.63tial V band/38mm Dpw
3" fastroad exhaust
80lb injectors
Stage2 intercooler
Apexi ebc.
9xx quick shift/ front shift/fuel pump
M030 brakes/Coilovers/30mm front roll
18" JARA cups 225F/285R


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sat Apr 03, 2010 11:17 pm 
Offline
Moderator
Moderator
User avatar

Joined: Sun Nov 04, 2007 7:43 pm
Posts: 12835
Location: Chatham, Kent
TIPEC membership: 4190
t3rra wrote:
I will check tmw, but I'm sure I read in the peter morgan book, that u can gain 1" by turn the rear shocks upside down. Well something along them lines.

Dunno how that works, the shocks on the rear of a 944/24 have absolutely nothing to do with ride height.

_________________
Jim

http://tipec.net/region_southeastlondon.php

2018 Mitsubishi Outlander PHEV
2005 Porsche Cayenne S SOLD
2000 Jeep Grand Cherokee SOLD
2010 Mazda MX5 Mk3.5 2.0 Sport Tech SOLD
2000 Porsche Boxster S SOLD
1987 Porsche 944
2019 Abarth 595C


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 11:28 am 
Offline

Joined: Sun Jan 24, 2010 12:07 am
Posts: 2381
TIPEC membership: 0
(lowering suspension is reasonably straightforward, but should be gone using the right equipment. At the rear of pre 1978 cars, the ride height is adjusted as on 911 by eccentric bolts on the spring plates. On later cars the suspension should be removed to adjust the rear ride height. At the front the coil springs should be cut, the amount is trial and error, driver the car after each cut 2 get it 2 settle. The rear axle height can be adjusted a small amount without having 2 remove the torsion bars, by loosening the bolts on the 2 peace spring plates. 944 it can be lowered by 25mm 1" on us models. 2 lower futher you would need 2 take out the torsion bars.

Race prepartion
the Porsche book 924/944
peter Morgan

_________________
Zermatt 88 944 turbo
Augtronic ecu&map
3071gtx/0.63tial V band/38mm Dpw
3" fastroad exhaust
80lb injectors
Stage2 intercooler
Apexi ebc.
9xx quick shift/ front shift/fuel pump
M030 brakes/Coilovers/30mm front roll
18" JARA cups 225F/285R


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 11:37 am 
Offline
Moderator
Moderator
User avatar

Joined: Sun Nov 04, 2007 7:43 pm
Posts: 12835
Location: Chatham, Kent
TIPEC membership: 4190
None of that says lowering is acheived by turning the shocks upside down!
A lot of the racers cut holes in the front of the rear wheel arch to get torsion bars out without dropping the suspension, but yes without that you'd get some adjustment on the plates then it is drop the suspension.

_________________
Jim

http://tipec.net/region_southeastlondon.php

2018 Mitsubishi Outlander PHEV
2005 Porsche Cayenne S SOLD
2000 Jeep Grand Cherokee SOLD
2010 Mazda MX5 Mk3.5 2.0 Sport Tech SOLD
2000 Porsche Boxster S SOLD
1987 Porsche 944
2019 Abarth 595C


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 11:40 am 
Offline

Joined: Sun Jan 24, 2010 12:07 am
Posts: 2381
TIPEC membership: 0
Yes jim, that's why I said are check. Wasn't 100 pecent sure. Do you think it's possable 2 lower uk spec models an 1" at the rear?

_________________
Zermatt 88 944 turbo
Augtronic ecu&map
3071gtx/0.63tial V band/38mm Dpw
3" fastroad exhaust
80lb injectors
Stage2 intercooler
Apexi ebc.
9xx quick shift/ front shift/fuel pump
M030 brakes/Coilovers/30mm front roll
18" JARA cups 225F/285R


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 11:42 am 
Offline
Moderator
Moderator
User avatar

Joined: Sun Nov 04, 2007 7:43 pm
Posts: 12835
Location: Chatham, Kent
TIPEC membership: 4190
t3rra wrote:
Yes jim, that's why I said are check. Wasn't 100 pecent sure. Do you think it's possable 2 lower uk spec models an 1" at the rear?

Not sure but wouldn't surprise me. The plates have some adjustment but not a lot, especially if the torsion bars hhave settled over the years.

_________________
Jim

http://tipec.net/region_southeastlondon.php

2018 Mitsubishi Outlander PHEV
2005 Porsche Cayenne S SOLD
2000 Jeep Grand Cherokee SOLD
2010 Mazda MX5 Mk3.5 2.0 Sport Tech SOLD
2000 Porsche Boxster S SOLD
1987 Porsche 944
2019 Abarth 595C


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 12:43 pm 
Offline

Joined: Sun Jan 24, 2010 12:07 am
Posts: 2381
TIPEC membership: 0
Think we may have answered foxs question. What would be the process for such a task? Tools needed? Cutting springs is a big no no, I alway thought? MIT lower mine if it clears the wheels on the wheel arch, my 18" fillS them almost flush.

_________________
Zermatt 88 944 turbo
Augtronic ecu&map
3071gtx/0.63tial V band/38mm Dpw
3" fastroad exhaust
80lb injectors
Stage2 intercooler
Apexi ebc.
9xx quick shift/ front shift/fuel pump
M030 brakes/Coilovers/30mm front roll
18" JARA cups 225F/285R


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 1:33 pm 
Offline

Joined: Thu Nov 15, 2007 6:44 pm
Posts: 721
Location: Towcester, Northants
TIPEC membership: 4288
t3rra wrote:
Think we may have answered foxs question. What would be the process for such a task? Tools needed? Cutting springs is a big no no, I alway thought? MIT lower mine if it clears the wheels on the wheel arch, my 18" fillS them almost flush.


How about you look back and read the post its already answered. :D

You'll be lucky to get an inch both sides.

Rich


Top
 Profile  
Reply with quote  
 Post subject: Re: lowering the rear of a 924s ?
PostPosted: Sun Apr 04, 2010 2:15 pm 
Offline

Joined: Sun Jan 24, 2010 12:07 am
Posts: 2381
TIPEC membership: 0
Sorry richy s.

We was just a refence 2 all posting on the tread. It seem with my mistake tht the tread was moving off subject.

_________________
Zermatt 88 944 turbo
Augtronic ecu&map
3071gtx/0.63tial V band/38mm Dpw
3" fastroad exhaust
80lb injectors
Stage2 intercooler
Apexi ebc.
9xx quick shift/ front shift/fuel pump
M030 brakes/Coilovers/30mm front roll
18" JARA cups 225F/285R


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 20 guests


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 post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group