 250# rear springs, where to buy? |
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| 914helo |
 Jul 21 2008, 03:15 PM
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#1
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Member  Group: Members Posts: 235 Joined: 29-September 04 From: Southern Utah Member No.: 2,859 Region Association: None  |
I am coming close to finishing my Subaru SVX 3.3L engine swap into my '73. The 3.3L is heavier than the other Suby motors. I currently have front and rear sway bars and stock torsion bars (am looking into different front 911 suspensions). This car is for fun weekend trips through the mountains where I live. I would rather have the better handling over the comfy ride. I saw Pelican had 180# rear springs and renegade is selling 200#. Where are people buying 250# springs? Is this going to be overkill for my car? Thanks
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Replies(1 - 12)
| smontanaro |
Jul 21 2008, 03:48 PM
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#2
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Senior Member Group: Members Posts: 1,190 Joined: 3-June 05 From: Evanston, IL Member No.: 4,197 Region Association: Upper MidWest |
250lb springs? Why not just weld up the rear suspension into a "hard tail"? (IMG:style_emoticons/default/smile.gif)
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| r_towle |
Jul 21 2008, 05:05 PM
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#3
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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look at Coleman Racing for adjustable spring perches for the rear.
This brings you down to the smaller diameter coil springs. Once you are setup for the smaller diameter springs, you can get any rate you want. The smaller diameter springs are the same thing used in nascar, dirt track etc...so there is a huge aftermarket for them. The adjustable perches will fit on koni or bilstein shocks in the rear. Its a threaded collar with a different retainer for the smaller springs. Look at any 914/911 race car and you will see this setup. Its not custom. Rich |
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| ArtechnikA |
Jul 21 2008, 05:09 PM
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#4
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
Many places from which to choose:
Google Search for spring makers You will need to know a few basic parameters in addition to your desired rate: coil OD and free height among them, as well as total suspension travel (because high rates typically require big wire and coil bind is bad...). You will definitely want them normalised and shot-peened. If you use anything like the stock spring supports (although I wouldn't think so...) you will not need them closed-wound and ground flat, but those are things to consider. You start heading outside the 'normal' envelope and you're in CustomLand pretty quickly. With that much spring you're going to need "above average" damping too. Bilstein Rallye valving is probably close. |
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| SirAndy |
Jul 21 2008, 08:43 PM
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#5
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Resident German Group: Admin Posts: 41,679 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
i bought mine from Rich Bontempi at Highperformance House.
They're Eibach's, so you should be able to buy them at all the usual race outlets ... (IMG:style_emoticons/default/bye1.gif) Andy PS: 250lbs springs and roller bearings are a great combination! Attached image(s) 
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| Elliot Cannon |
Jul 21 2008, 09:08 PM
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#6
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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250 lb. springs. Ask Andys girlfriend what she thinks of them. (IMG:style_emoticons/default/laugh.gif)
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| 6freak |
Jul 22 2008, 08:27 AM
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#7
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
QUOTE(Elliot Cannon @ Jul 21 2008, 08:08 PM)  250 lb. springs. Ask Andys girlfriend what she thinks of them. (IMG:style_emoticons/default/laugh.gif) And you can buy kidney belts at the local Moto`x shop ..you will be piss`n blood after 50 miles (IMG:style_emoticons/default/laugh.gif) |
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| ArtechnikA |
Jul 22 2008, 10:11 AM
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#8
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(6freak @ Jul 22 2008, 10:27 AM) And you can buy kidney belts at the local Moto`x shop ..you will be piss`n blood after 50 miles (IMG:style_emoticons/default/laugh.gif) If the vehicle weight goes up but the available suspension travel doesn't, a wheel rate increase is going to be needed to keep things from bottoming, at which point the rate goes infinite, which is bad (like coil bind). 250 lbs/in is jarring on a light car but it's not on a heavy car. I don't know that a 3,3 Subie is 400 lbs heavier than a 2,0 T-IV but I have a 3,0 Subie engine (still happily in service in the Ourback, thank you...) and I can see it being a bunch heavier. |
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| r_towle |
Jul 22 2008, 12:00 PM
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#9
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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What does an aircooled 3.6 weigh in at? SirAndy is a good example once you figure out the weight of his motor.
Also, the V8 guys all run heavier springs. Rich |
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| SirAndy |
Jul 22 2008, 12:10 PM
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#10
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Resident German Group: Admin Posts: 41,679 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(6freak @ Jul 22 2008, 06:27 AM) QUOTE(Elliot Cannon @ Jul 21 2008, 08:08 PM) 250 lb. springs. Ask Andys girlfriend what she thinks of them. (IMG:style_emoticons/default/laugh.gif) And you can buy kidney belts at the local Moto`x shop ..you will be piss`n blood after 50 miles (IMG:style_emoticons/default/laugh.gif) you guys seem to know my car a lot better than i do ... (IMG:style_emoticons/default/rolleyes.gif) Andy (who doesn't piss blood and still has the same happy GF) |
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| 914helo |
Jul 22 2008, 04:22 PM
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#11
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Member Group: Members Posts: 235 Joined: 29-September 04 From: Southern Utah Member No.: 2,859 Region Association: None |
IIRC my 3.3L Suby weighed in around 400#.
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| r_towle |
Jul 22 2008, 04:56 PM
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#12
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(SirAndy @ Jul 22 2008, 02:10 PM) (IMG:style_emoticons/default/rolleyes.gif) Andy (who doesn't piss blood and still has the same happy GF) Based upon your "romantic getaway video" I would argue that you need to work a bit harder to keep her happy and STEP AWAY FROM THE KEYBOARD.....lol I think her comment was priceless..."here is Andy on a romantic getaway with the 914World..." (something like that....she did not seem amused) Rich |
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| SirAndy |
Jul 22 2008, 05:04 PM
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#13
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Resident German Group: Admin Posts: 41,679 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(r_towle @ Jul 22 2008, 02:56 PM) did not seem amused that was over a week ago ... (IMG:style_emoticons/default/rolleyes.gif) thank god for short-term-memory! (IMG:style_emoticons/default/cheer.gif) Andy |
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