 V8 conversions: Torsion bar size and rear spring rates?, What do you run? |
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| tygaboy |
 May 6 2020, 04:00 PM
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914 Guru  Group: Members Posts: 5,558 Joined: 6-October 15 From: Petaluma, CA Member No.: 19,241 Region Association: Northern California 
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Hi V8 folks -
I'm looking for recommendations to size my torsion bars and rear spring rates. Component-wise, it's an LS3 with Boxster 6-speed. The total drive train weight is around 575 lbs. I'm running Koni yellows (helper springs on the rear), 17mm raised front spindles and the 2" Tangerine rear suspension points and tall shock tower kit. I'd like the ride to be sporty but tolerable. if that means anything! The use case is "spirited street driving" I'm not worried about ultimate track performance - at least not yet. So, wha'cha running? Thanks, Chris Attached thumbnail(s) 
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| Krieger |
May 7 2020, 08:27 AM
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Advanced Member Group: Members Posts: 4,803 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None
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I had the same problem as you. You can ditch the helper springs for an extra 1/4 inch. Zip tie the shock to the top perch. It will seat perfect on the lower no problem. This is exactly what I have done to my track car. Many thousands of miles and those dang zip ties are still there!
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Posts in this topic
tygaboy V8 conversions: Torsion bar size and rear spring rates? May 6 2020, 04:00 PM
ValcoOscar This is my LS Car with 901. Boxster S trans is st... May 6 2020, 04:10 PM
MidshipMadness
This is my LS Car with 901. Boxster S trans is s... May 7 2020, 09:08 AM tygaboy @ValcoOscar - Looks great! But what rate rear... May 6 2020, 04:30 PM FL 000 Chris,
I don't have a baseline for comparison... May 6 2020, 05:20 PM roblav1 On my performance based build, I have 21mm Sway Aw... May 6 2020, 06:15 PM tygaboy
On my performance based build, I have 21mm Sway A... May 6 2020, 06:38 PM roblav1 Ahhh! Helper springs. I have the yellow Koni ... May 6 2020, 08:24 PM Chris914n6 Stock 911 front and 180-200lbs in back. May 6 2020, 08:55 PM Andyrew Your running a big bar up front.
You also have g... May 7 2020, 01:59 AM tygaboy @ValcoOscar @FL 000 [b]@[url=http://www.914world... May 7 2020, 07:35 AM Krieger I don't know what size springs you have now, b... May 7 2020, 08:14 AM tygaboy
I don't know what size springs you have now, ... May 7 2020, 08:32 AM andys Stock '89 Carrera 18.8 front T bars, and 200# ... May 7 2020, 09:01 AM dan10101 Hey Chris,
A little late to the game.
I'm at... May 10 2020, 05:06 PM tygaboy
Hey Chris,
A little late to the game.
I'm a... May 10 2020, 06:23 PM |
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