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coilover option?
- tassuperkart
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Search is your friend. Have you searched?
Heres some info Callumn posted a while back to help you on your way.
http://forum.n12turbo.com/viewtopic.php?t=4410
L8r
E
Heres some info Callumn posted a while back to help you on your way.
http://forum.n12turbo.com/viewtopic.php?t=4410
L8r
E
Forcd4 wrote:Oh fuk no dude it's you a again, the oracle.
4.5-5kg/mm should be plenty for street fun car. other wise somthing like lower 4kg should be enough.
well done E you always have the knack for turning 1 line into a story book lol
well done E you always have the knack for turning 1 line into a story book lol
162.4kw - 588.8nm
http://www.cmsperformance.net/
http://www.cmsperformance.net/
Like I said in the other post, you can calculate it and it wont cost anything...the math is a little complicated but not too much. I have an excel sheet I did up that does it.... but a google search on 'calculate coil spring rate' will probably find something. You basically need the wire diameter (measure with verniers), the number of coils (count with your finger!), coil diameter (verniers again), some material properties (I can give you what you need here).
or
you can measure the deflection on a set of bathroom scales . This post shows it being done for a much smaller spring, but the idea is the same.
http://forum.n12turbo.com/viewtopic.php?t=7702
C
or
you can measure the deflection on a set of bathroom scales . This post shows it being done for a much smaller spring, but the idea is the same.
http://forum.n12turbo.com/viewtopic.php?t=7702
C
ok went to this site
http://www.pontiacracing.net/js_coil_spring_rate.htm
and put in
10 coils
12/13mm wire dia
90mm outside dia
200mm free length
180mm compressed (bit of a guess but it not make to much differance to end results).
and stuff me I must be doing something wrong as it came out at 240 pounds or 108kg.
Maybe thats why when i sit on front end it move stuff all.
http://www.pontiacracing.net/js_coil_spring_rate.htm
and put in
10 coils
12/13mm wire dia
90mm outside dia
200mm free length
180mm compressed (bit of a guess but it not make to much differance to end results).
and stuff me I must be doing something wrong as it came out at 240 pounds or 108kg.
Maybe thats why when i sit on front end it move stuff all.
yeah i dunno how you got that, but the numbers you have above show it is 6kg/mm which were the same as what i was selling my coilovers with. They were pretty stiff.
again from experience, and confirming your current spring rate.
again from experience, and confirming your current spring rate.
shanec86 wrote:4.5-5kg/mm should be plenty for street fun car. other wise somthing like lower 4kg should be enough.
162.4kw - 588.8nm
http://www.cmsperformance.net/
http://www.cmsperformance.net/
also keep in mind that the standard front coil springs have a rate of 2.0kg/mm so yours are 3 times as stiff
what type of spring are you running in the back? if its a pedders or king it wont be a hell of a lot more than standard. they were around 3-3.5 from memory. Standards are 2.35kg/mm
what type of spring are you running in the back? if its a pedders or king it wont be a hell of a lot more than standard. they were around 3-3.5 from memory. Standards are 2.35kg/mm
162.4kw - 588.8nm
http://www.cmsperformance.net/
http://www.cmsperformance.net/
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- Posts: 21
- Joined: Tue Mar 22, 2011 11:30 pm
- Location: Melbourne
guess no one reads threads these daysnorthsideimports wrote:and just say i bought s13/180sx aftermarket suspension and drilled the holes to make them fit would the bottom part line up for the bolts to go through?
162.4kw - 588.8nm
http://www.cmsperformance.net/
http://www.cmsperformance.net/
- tassuperkart
- Administrator
- Posts: 5578
- Joined: Wed Jul 05, 2006 8:39 pm
- Location: Southern Tasmania
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