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basildon993
Montreal


Joined: 11 Dec 2008
Posts: 624
Location: Sussex


PostPosted: Wed Dec 31, 2014 3:06 pm    Post subject: NB Front Wheel Spacer Query??? Reply with quote

Hi Guys,

Been away from the forum for a while, but am now back in the swing of things! Laughing

I've decided to go for some wheel spacers on my early NB 993 Carreras 2, totally get the 15mm ones I need for the rear, but what about the front?

I have 7x17 front wheels ET55 and I've read that I could use 7mm spacers but these will require extended studs which seems like a lot of aggro! Surely a 5mm spacer will improve the look without the need for extended studs? But will a 5mm spacers effect the steering, which I assume Porsche designed for a 7" wide ET55 wheel?

Help!

Cheers, Ben Question
 
  
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Cheshire cat
Monza


Joined: 10 Apr 2011
Posts: 236



PostPosted: Wed Dec 31, 2014 4:34 pm    Post subject: Reply with quote

I recently fitted 5mm spacers to my front wheels - same size as yours - following a thread I read on here a few months ago, mainly to improve the look by "pushing" the wheels a little further out into the arches. If I'm completely honest I don't think it has made much difference to the looks and I also can't feel any difference in the way the car steers, positive or negative. So in summary, while they didn't cost much (c £40 IIRC) they perhaps not surprisingly didn't seem to do much either.

I will be interested to see what others have to say on the subject Question
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'96 Arena Red/Grey 993 C2 manual
 
  
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Kimbo
Paul Ricard


Joined: 05 May 2011
Posts: 3448
Location: East Sussex


PostPosted: Wed Dec 31, 2014 7:38 pm    Post subject: Reply with quote

I've ben using 7mm with the normal studs for years! No problems at all.
They certainly improve the looks at the front.

15mm on the back seems wide - unless you're running ET50 wheels?
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Rusty Cayman
 
  
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Leosayer
Nürburgring


Joined: 11 Nov 2006
Posts: 496
Location: NE London

1996 Porsche 993 Carrera 2

PostPosted: Wed Dec 31, 2014 9:50 pm    Post subject: Reply with quote

He'll be running rear wheels with ET70, negative offset.

The 15mm spacers will bring it to ET55 which fills the arches just perfectly.
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1996 C2 Coupe, Polar Silver, Manual
 
  
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Leosayer
Nürburgring


Joined: 11 Nov 2006
Posts: 496
Location: NE London

1996 Porsche 993 Carrera 2

PostPosted: Wed Dec 31, 2014 9:56 pm    Post subject: Reply with quote

These front wheels in the pic below are ET50, which does looks slightly better than than the ET55 on the Cup2s.


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basildon993
Montreal


Joined: 11 Dec 2008
Posts: 624
Location: Sussex


PostPosted: Wed Dec 31, 2014 10:02 pm    Post subject: Reply with quote

Yup ET 70 on the rear. Smile
 
  
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Kimbo
Paul Ricard


Joined: 05 May 2011
Posts: 3448
Location: East Sussex


PostPosted: Wed Dec 31, 2014 10:13 pm    Post subject: Reply with quote

Yes I meant ET70's. I couldn't remember what the size was.
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wozy
Imola


Joined: 06 Feb 2013
Posts: 795
Location: Worcestershire


PostPosted: Wed Dec 31, 2014 10:18 pm    Post subject: Reply with quote

I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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Kimbo
Paul Ricard


Joined: 05 May 2011
Posts: 3448
Location: East Sussex


PostPosted: Thu Jan 01, 2015 7:01 pm    Post subject: Reply with quote

wozy wrote:


To be honest I think they look better than the 7MM ones


You must have some sort of Miracle Vision if you can tell the difference between 5mm and 7mm spacers.
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Last edited by Kimbo on Thu Jan 01, 2015 7:45 pm; edited 1 time in total
 
  
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9MLS
Imola


Joined: 22 Jan 2014
Posts: 779



PostPosted: Thu Jan 01, 2015 7:38 pm    Post subject: Reply with quote

7mm shims straight on, if you're that worried use steel nuts rather than the alloy ones

15mm adapters at the rear
 
  
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graemeho
Nürburgring


Joined: 16 Jan 2012
Posts: 392
Location: Lincolnshire


PostPosted: Sun Jan 04, 2015 6:43 pm    Post subject: Reply with quote

wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Just got around to fitting my 5mm spacers, also on 17" Cup2's. Look good apart from I'm now concerned about short stud length. Decided to invest in some open ended steel nuts from design 911 for piece of mind. As you can see the nuts are not fully home (about 2 threads short).

Will this be ok or do the studs need changing for longer ones? My engineering brain says change the studs but don't really want the extra hassle Question

advice appreciated!

Graeme
 



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the_green_man
Monza


Joined: 29 Sep 2013
Posts: 205
Location: North Norfolk


PostPosted: Sun Jan 04, 2015 6:46 pm    Post subject: Reply with quote

Your engineering brain knows what to do.
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Martin

1996 993 Targa Tip Aventura/Grey
 
  
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wozy
Imola


Joined: 06 Feb 2013
Posts: 795
Location: Worcestershire


PostPosted: Sun Jan 04, 2015 6:57 pm    Post subject: Reply with quote

graemeho wrote:
wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Just got around to fitting my 5mm spacers, also on 17" Cup2's. Look good apart from I'm now concerned about short stud length. Decided to invest in some open ended steel nuts from design 911 for piece of mind. As you can see the nuts are not fully home (about 2 threads short).

Will this be ok or do the studs need changing for longer ones? My engineering brain says change the studs but don't really want the extra hassle Question

advice appreciated!

Graeme


4K miles and 2.5K of those going like a nutter through the twisties in the Pyrenees tells me your worrying to much. Smile

7MM worried me, 5MM does not .
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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wozy
Imola


Joined: 06 Feb 2013
Posts: 795
Location: Worcestershire


PostPosted: Sun Jan 04, 2015 6:58 pm    Post subject: Reply with quote

Kimbo wrote:
wozy wrote:


To be honest I think they look better than the 7MM ones


You must have some sort of Miracle Vision if you can tell the difference between 5mm and 7mm spacers.


I know it sounds silly. But you can.
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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graemeho
Nürburgring


Joined: 16 Jan 2012
Posts: 392
Location: Lincolnshire


PostPosted: Sun Jan 04, 2015 7:35 pm    Post subject: Reply with quote

wozy wrote:
graemeho wrote:
wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Just got around to fitting my 5mm spacers, also on 17" Cup2's. Look good apart from I'm now concerned about short stud length. Decided to invest in some open ended steel nuts from design 911 for piece of mind. As you can see the nuts are not fully home (about 2 threads short).

Will this be ok or do the studs need changing for longer ones? My engineering brain says change the studs but don't really want the extra hassle Question

advice appreciated!

Graeme


4K miles and 2.5K of those going like a nutter through the twisties in the Pyrenees tells me your worrying to much. Smile

7MM worried me, 5MM does not .


Not convinced Wozy

The difference in length between the 3mm and 5mm spacers will account for the amount which the thread is short by. This is probably why Porsche state over 3mm fit new studs.... Surprised

It's just the open ended nuts that scream 'I'm too short'. Sticking with standard nuts means that you can't see they are short. Think the spacers need to come off until longer studs are sourced and fitted.

Anyone changed them? looks like a careful bit of encouragement with a hammer to knock them out is all that's needed Question
 
  
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Flightrisk
Spa-Francorchamps


Joined: 27 Dec 2012
Posts: 321
Location: Hampshire


PostPosted: Sun Jan 04, 2015 7:55 pm    Post subject: Reply with quote

wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Was this 5mm on all four wheels or just the fronts?
_________________
993 C4 VR, 1996, Iris Blue, RS: engine mounts/shift lever/fork/solid rod, Koni FSD/M033/PwrFlx Bushes, 200Cats/K&N fltr/ChipWizards remap, Ferrodo DS2500/Goodridge Hoses, OMP strut/Carnewal FPB, Tor HID, Becker GP

THIS 993 IS FOR SALE
 
  
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wozy
Imola


Joined: 06 Feb 2013
Posts: 795
Location: Worcestershire


PostPosted: Sun Jan 04, 2015 8:01 pm    Post subject: Reply with quote

Flightrisk wrote:
wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Was this 5mm on all four wheels or just the fronts?


Just the fronts
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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wozy
Imola


Joined: 06 Feb 2013
Posts: 795
Location: Worcestershire


PostPosted: Sun Jan 04, 2015 8:16 pm    Post subject: Reply with quote

graemeho wrote:
wozy wrote:
graemeho wrote:
wozy wrote:
I bought 7MM spacers, worried that Porsche state you need longer studs on anything more than 3MM. So took them off and went out and bought 5MM and installed them instead...... Go figure Smile

You most def can tell the difference with spacers on IMO, and I'm amazed 5MM make such a difference. Saying that there is no difference in handling feel.

To be honest I think they look better than the 7MM ones, which is good, cause I can sleep better at night now knowing my wheels wont fall off as I've had them on for around 4K miles now.

My advice (I have an early 993 C2 NB on Cup2 17), go for the 5MM.


Just got around to fitting my 5mm spacers, also on 17" Cup2's. Look good apart from I'm now concerned about short stud length. Decided to invest in some open ended steel nuts from design 911 for piece of mind. As you can see the nuts are not fully home (about 2 threads short).

Will this be ok or do the studs need changing for longer ones? My engineering brain says change the studs but don't really want the extra hassle Question

advice appreciated!

Graeme


4K miles and 2.5K of those going like a nutter through the twisties in the Pyrenees tells me your worrying to much. Smile

7MM worried me, 5MM does not .


Not convinced Wozy

The difference in length between the 3mm and 5mm spacers will account for the amount which the thread is short by. This is probably why Porsche state over 3mm fit new studs.... Surprised

It's just the open ended nuts that scream 'I'm too short'. Sticking with standard nuts means that you can't see they are short. Think the spacers need to come off until longer studs are sourced and fitted.

Anyone changed them? looks like a careful bit of encouragement with a hammer to knock them out is all that's needed Question


Jasmine told me the 7MM should be fine, they supplied them to me. I went for 5MM from Design911 in the end for my own piece of mind.

You may be concerned and fair enough, but racing around the mountains in the Pyrenees is just as much if not more aggressive on a car than any track day. Imagine a track day of up to 400 miles a day, and they still gave no problem.

Just for balance, in the last twenty plus years, I've driven/ridden, the Ring, Jerez, Donnington, Silverstone, Spa, Castle Coombe ....... and many more including my favourite Oulton Park, and the Pyrenees takes it toll on a car far more than any of them, and my 5MM spacers over 2.5K miles over 6 days, gave not one jot of trouble.

TBH, I always veer on the side of caution, I would never recommend anything on a forum unless I had used it myself first and then were 100% satisfied with it.
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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graemeho
Nürburgring


Joined: 16 Jan 2012
Posts: 392
Location: Lincolnshire


PostPosted: Sun Jan 04, 2015 9:47 pm    Post subject: Reply with quote

Fair enough. Thanks for the feedback. Will give it some thought Question
 
  
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basildon993
Montreal


Joined: 11 Dec 2008
Posts: 624
Location: Sussex


PostPosted: Sun Jan 04, 2015 10:08 pm    Post subject: Reply with quote

From my undergrad days I seem to remember that as long as the length of exposed thread is greater than the stud diameter it should be ok Question
 
  
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