Coilover spring rates for wider wheels
04-05-2011, 02:45 PM
#1
Coilover spring rates for wider wheels
I'm ordering coilovers in the next few days and to get it right, I need to know what king of spring rates I should inquire about for running wider wheels.
Going to be ordering Stance coilovers and running them with 245 on 10.5 +15 and 225 on 9.5 +15.
I've never bought coilovers before and after being convinced yesterday not to buy shocks, that's the way I'm going.
Obviously I don't want to waste $1400 lol
Thanks in advance!
Going to be ordering Stance coilovers and running them with 245 on 10.5 +15 and 225 on 9.5 +15.
I've never bought coilovers before and after being convinced yesterday not to buy shocks, that's the way I'm going.
Obviously I don't want to waste $1400 lol
Thanks in advance!
04-05-2011, 10:49 PM
#2
stock
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I agree with you. I have also been told to get the coilovers before the wheels and tires. Wish i could give you some information. Have you seen tiltmode43 posting for the group buy for powertrix coilovers? So far they have been amazing coils for both 300z and 240 alike. He will have the specs on them in the next couple weeks or so. You may want to wait and see what the results will be before buying the stance coils. If the powertrix coils turn out not to be goodthen the stance is what i am looking at getting as well 
04-12-2011, 01:27 PM
#5
Since you're going for the ugly stretched look get the SOFTEST rates available. You're going to have no sidewall nor sidewall flex so the coilover will have to do all the work.
Also make sure that the coilovers are valved to accomodate for the spring rates you're getting.
I'd say 8k front and 6k rear tops
Also make sure that the coilovers are valved to accomodate for the spring rates you're getting.
I'd say 8k front and 6k rear tops
04-12-2011, 01:57 PM
#6
OMGITM!
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You shouldn't have to decide coilover rates based on your wheel setup. When it comes down to it, if you're going to run aggressive fitment, make proper clearance for compression - don't bandaid potential rub with spring rates.
On a similar note, I wouldn't recommend the softest rates either. No real reason to go excessively in one direction than the other.
Effectively, your wheel setup won't really matter so much in choosing rates. Do some searching on what others have gone with, and have been happy with, and decide accordingly. Good luck!
On a similar note, I wouldn't recommend the softest rates either. No real reason to go excessively in one direction than the other.
Effectively, your wheel setup won't really matter so much in choosing rates. Do some searching on what others have gone with, and have been happy with, and decide accordingly. Good luck!
04-12-2011, 02:41 PM
#7
You may want to specify "for a show car" here. Wheel setup (amount of grip, width, rolling diameter) are all variables that must be considered when chosing spring rates and valving.
04-12-2011, 06:07 PM
#13
OMGITM!
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Why are many saying softer rates will *save* the tires? Softer rates will have a negligible, if not no, effect on the tire life. The more important, and more likely thing to happen here, would be wheel damage rather than tire damage. The spring rates will not have any noticeable effect on the tire life, and I highly doubt any difference on wheel damage as well.
No need to get into the stretched tire debate - yes it's silly, yes it's stupid, yes the world may implode from running tire sizes outside the manufacturer's recommended specs. Those who go this route hopefully know what they are in for though.
Last edited by tiltmode43; 04-12-2011 at 06:10 PM.
04-12-2011, 06:18 PM
#14
Given the tire sizes, I think it's pretty clear this is more of an aesthetics thing, rather than having any sort of performance goals, thus all variables need not be considered. I'd venture to say that for the average weekend warrior there are more important things to focus on than "amount of grip, width, rolling diameter" - picking an all around reputable coilover setup with factory specs and focusing on other driving aspects would net greater results. For more serious applications, I'd agree that you are right though
Why are many saying softer rates will *save* the tires? Softer rates will have a negligible, if not no, effect on the tire life. The more important, and more likely thing to happen here, would be wheel damage rather than tire damage. The spring rates will not have any noticeable effect on the tire life, and I highly doubt any difference on wheel damage as well.
No need to get into the stretched tire debate - yes it's silly, yes it's stupid, yes the world may implode from running tire sizes outside the manufacturer's recommended specs. Those who go this route hopefully know what they are in for though.
Why are many saying softer rates will *save* the tires? Softer rates will have a negligible, if not no, effect on the tire life. The more important, and more likely thing to happen here, would be wheel damage rather than tire damage. The spring rates will not have any noticeable effect on the tire life, and I highly doubt any difference on wheel damage as well.
No need to get into the stretched tire debate - yes it's silly, yes it's stupid, yes the world may implode from running tire sizes outside the manufacturer's recommended specs. Those who go this route hopefully know what they are in for though.
04-12-2011, 06:52 PM
#15
Momentum Keeps Me Going
I'd like to be a fly on the wall and watch some poor smuck try and mount those 245 on 10.5" wheels and the 225s on 9.5" wheels. That ought to be fun 
and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound! 
and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound!
04-12-2011, 08:22 PM
#17
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Spin9k - Depending on the tire brand and how warm of a day it is (lol), you'd be surprised what can be mounted without requiring any additional tools/work
04-12-2011, 08:34 PM
#19
I'd like to be a fly on the wall and watch some poor smuck try and mount those 245 on 10.5" wheels and the 225s on 9.5" wheels. That ought to be fun and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound!
and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound! p.s. they're mounted on RPF1's... TAKE THAT PURISTS (pics in aggressive fitment thread)
Last edited by Munchy; 04-12-2011 at 08:37 PM.
04-12-2011, 10:21 PM
#21
I'd like to be a fly on the wall and watch some poor smuck try and mount those 245 on 10.5" wheels and the 225s on 9.5" wheels. That ought to be fun and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound!
and when he's done it'll ride like a truck ... no make that a tractor ... with those coilovers and the 50 psi needed to get the tread flat on the gound! [youtube]http://www.youtube.com/watch?v=P9kK9N0Cc68&feature=player_embedded[/youtube]
04-13-2011, 02:10 AM
#23
Given the tire sizes, I think it's pretty clear this is more of an aesthetics thing, rather than having any sort of performance goals, thus all variables need not be considered. I'd venture to say that for the average weekend warrior there are more important things to focus on than "amount of grip, width, rolling diameter" - picking an all around reputable coilover setup with factory specs and focusing on other driving aspects would net greater results. For more serious applications, I'd agree that you are right though
Why are many saying softer rates will *save* the tires? Softer rates will have a negligible, if not no, effect on the tire life. The more important, and more likely thing to happen here, would be wheel damage rather than tire damage. The spring rates will not have any noticeable effect on the tire life, and I highly doubt any difference on wheel damage as well.
Why are many saying softer rates will *save* the tires? Softer rates will have a negligible, if not no, effect on the tire life. The more important, and more likely thing to happen here, would be wheel damage rather than tire damage. The spring rates will not have any noticeable effect on the tire life, and I highly doubt any difference on wheel damage as well.
I didn't say that softer springs will prolong tire life, i said that since you lose all of the sidewall and tire shape having a setup that's a bit softer may bring back some of the comfort and safety when riding with such a fucked up setup.
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