Classic Revival Spring Rates
Hi guys
I am looking at fitting new springs to my car and I was wondering what spring length & rate people are using front and rear. I am currently on my second set from Ian and I still think that they are to soft as I have had to wind the dampeners up to help with bottoming out. Thanks |
Craig,
I finally gave up on Ians springs also. Now running Kings 450lb front and 500lb rear. Theses are not much different to Ians rates but they are the rate they say they are unlike Ians Blue springs which are all over the place. I went with 250 mm long springs but expect these to be just a bit too long and I may have to change to 200mm long with keeper springs. The king springs are a larger id (and OD)than Ians so you will need to make up a spacer for the bottom adjuster. The springs will fit easily on the rear but you may have clearance problems on the front depending on what top arms you have. (some are straight and some curve in). Looks like you are getting really serious about the Nationals. If you are looking for a tuner that will out do any one else for peak and average under curve power use Sonny at Marranos 9744 5355.I reckon your combo will be good for 420rwkw:) :) :) Phil:) |
Can't believe these spring rates. :eek:
In that race Harrison we run 350lbs springs in the front and unknown in the rear. Front's are King Springs. We bought 2nd hand springs for the rear, so don't know their exact rating. They are not as stiff as the front. That Harrison would be much lighter than a finished CR. But 350lbs in that Harrison feels very stiff, maybe too stiff for road use. |
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Gday 400TT,
I think its hard to make direct comparisons between spring rates, becuase of the different suspension geometry. You need to consider shock mounting points, angles and leverage, length of arms etc. In the CR a lot of the extra weight is in the AU rear end suspension arms as well (im guessing - as they weigh a ton), and this is actually "unsprung weight" as well.... so basically theres a lot of things to consider. :) Cobra.AU, Through a hilarious set of circumsances (just ask me) I have some spare springs (maybe 2 lots of spares). 2 x 10" 400 (going on my rear) a 2 x 10" 425 (going on my front). I think I really stuffed up as I think I need 200's with a keeper (as Phil said), but Ill see how I go with ride height once I get it going (might be OK, as my shocks are a touch longer). Your welcome to try them out if you like. They are QA1, and have an ID of 63mm through, whereas the avos standard is 65mm so not sure if they'll fit. Cheers |
I'm using the Kings springs at the rates that Ian has specified, I find them great for street cruising, I have not used them on the track, don't have the ability, wallet or required pair to give it a go. I don't find it too harsh as I have some rough roads. I am using the AVO shocks and have not started to play with the settings. I find it a little soft under acceleration and when the speeds reach 100 +.
Can anyone advise me in relation to what damping settings they are running and also what wheel alignment settings they have. I think that mine are all set to factory standards. I believe that Ian advises different settings for front and rear when it comes to alignment. Any suggestions. Steve |
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My GT40 runs 180lbs front, 250lbs rear. Would be interesting to see weight difference between Ford & Skyline. Nissan has gone to be a bit of trouble to make it lighter, lots of alloy, hollow sway bars etc, so Skyline should be lighter. The Harrison runs R32 Skyline GTR rear. With complete diff, cradle etc, springs & shocks. My brother and I could not lift it off the ground by ourselves. All we could do was lever it onto a trolley to install by both lifting a side at a time. We got a bit of a shock, as it's something you don't expect. Installing the old Ford 9" in the last Cobra was a breeze, but then again it was bare - no springs, arms etc. |
I also gave Ians the mighty flick as they are all over the place and I suspect ratings are not correct.
I now have 350lb kings (front) and 400lb Eibach (rear) Seem great on the road but no track action yet so jury is still out on how good setup is. Still not 100% sure on how setting up the dampening rate effects handling etc. Any thoughts here would be appreciated. Craig you & your brother are up on that stuff whats your thoughts please. Leeroy |
I could always put some really stiff springs in and try some Drift racing at Wakefield.
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