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30MM Torsions, Which Springs?

 
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Rasta Monsta  



Joined: 12 Jul 2006
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Location: PacNW

PostPosted: Wed Apr 23, 2008 7:21 am    Post subject: 30MM Torsions, Which Springs? Reply with quote

I'm thinkin' 250, what do you guys think?

(For Shaggy)
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Chrenan  



Joined: 15 Jan 2003
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Location: Canada

PostPosted: Wed Apr 23, 2008 7:33 am    Post subject: Reply with quote

Maybe a little higher? Effective rate of a 30mm torsion bar on a 924 is 335 lbs. Unless they are hollow, then it is 292 lbs.
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924RACR  



Joined: 29 Jul 2001
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PostPosted: Wed Apr 23, 2008 8:36 am    Post subject: Reply with quote

That's quite low - I ran 400, 350 might also suit you.
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Rasta Monsta  



Joined: 12 Jul 2006
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PostPosted: Wed Apr 23, 2008 9:03 am    Post subject: Reply with quote

Hmm, I guess I should also ask whether I will hate the ride quality of the 30s!
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924RACR  



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PostPosted: Wed Apr 23, 2008 9:58 am    Post subject: Reply with quote

I found them to be a bit soft...


...on the track!
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John Brown  



Joined: 07 Nov 2002
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PostPosted: Sat Apr 26, 2008 11:12 pm    Post subject: Reply with quote

Rasta Monsta wrote:
Hmm, I guess I should also ask whether I will hate the ride quality of the 30s!


400 is my recommendation also. And, yes you will (hate the ride quality).
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Paul  



Joined: 02 Nov 2002
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PostPosted: Sat Apr 26, 2008 11:47 pm    Post subject: Reply with quote

400 = no street ride quality and loose teeth.
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CÚdric  



Joined: 27 Aug 2004
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PostPosted: Sun Apr 27, 2008 1:29 am    Post subject: Reply with quote

400 wont be that stiff. I have driven a 931 with 700 at the front. That was pretty stiff, a bit to much for a street car. Harsh ride quality is mostly due to the damper stetup.
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Paul  



Joined: 02 Nov 2002
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PostPosted: Sun Apr 27, 2008 1:39 am    Post subject: Reply with quote

How are the roads in Sweden?

Over here this is normal:


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Vince Ponz  



Joined: 02 Nov 2002
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PostPosted: Sun Apr 27, 2008 3:03 am    Post subject: Reply with quote

WOW, you still have dinosaur footprints in your town.
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-nick  



Joined: 16 Nov 2002
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PostPosted: Sun Apr 27, 2008 3:41 am    Post subject: Reply with quote

We've got dinosaurs in Boston too

I ran 25.5mm rear bars with 200# front springs on a '77 and I felt it was not pleasant on city streets. It was a couple hundred pounds lighter than a 931, but 400# & 30mm would be torture in any model.

Right now I'm running 200# fronts with the stock 23.5 torsions with bilsteins and I feel like it's just the right balance between pleasant in the city and responsive in the turns. Just food for thought.
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Rasta Monsta  



Joined: 12 Jul 2006
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PostPosted: Sun Apr 27, 2008 1:19 pm    Post subject: Reply with quote

Ugh, there are NO roads that look like that around here. Seldom freezes, temperature variations are quite low compared to other places.

I'm goin for it.
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Paul  



Joined: 02 Nov 2002
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PostPosted: Sun Apr 27, 2008 2:03 pm    Post subject: Reply with quote

Shaggy will become a one driver car.....
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Splineless  



Joined: 01 Apr 2008
Posts: 86
Location: New England

PostPosted: Sun May 18, 2008 1:06 am    Post subject: Reply with quote

Quote:
Right now I'm running 200# fronts with the stock 23.5 torsions with bilsteins and I feel like it's just the right balance between pleasant in the city and responsive in the turns. Just food for thought.


I'm just across the river from you and was wondering about which bars to use with 200# springs I just bought. I was thinking I'd have to go thicker for balance. Glad to hear from someone with 1st hand experience. I'll stick with what I have - just need a pair of Bilsteins. Thanks.
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