View Poll Results: Should the Track Springs by Progress Go into Production with spring rates discussed?
Yes! Pull the Trigger I am ready to buy!
32
74.42%
Not interested.
11
25.58%
Voters: 43. You may not vote on this poll
Progress Technology Springs
04-25-2009, 08:18 AM
#55
i know most of you are autocrossing but i track. I am ready to buy and voted. This may be my low ball answer to my current problems. i have the yellows koni and the tein h spring.---not enough spring for me now. I do like my drop.
Will be a hell of a lot cheaper than coilovers.
olddrager
Will be a hell of a lot cheaper than coilovers.
olddrager
04-25-2009, 10:41 PM
#56
i know most of you are autocrossing but i track. I am ready to buy and voted. This may be my low ball answer to my current problems. i have the yellows koni and the tein h spring.---not enough spring for me now. I do like my drop.
Will be a hell of a lot cheaper than coilovers.
olddrager
Will be a hell of a lot cheaper than coilovers.
olddrager
The almost exact target I wanted to do, Koni Yellows and these springs to avoid having to go to a worthy track coil-over...
I will call progress this week and discuss where he is at and keep you guys posted.
04-28-2009, 09:26 AM
#58
Registered
They say patience is a virtue... I guess I need to be more virtuous
05-27-2009, 09:21 AM
#61
Awaiting a phone call from Progress today about delivery of a prototype.
I am looking for one test subject, unfortunately since I have been burned in the past so much I will be charging close to retail on the set.
One Person that has aftermarket Koni/Tokico D-Spec's and is interested in the spring rates/drop discussed.
$300 shipped within the states.
This is not to say that $300 is the MSRP or what the price they are going to be sold at but is a good indication of price range.
All feedback provided from test subject will be directly forwarded onto Progress.
Any revisions or changes made therein test subject will receive a new set if desired for exchange of original set.
If price of the Springs change test subject will be reimbursed accordingly.
Buying this one Prototype Spring is not cheap at all, but I am pushing it through to see it available for you guys.
I have some people in mind please PM me for those that are interested in participating.
Once I have a finalized timeline I will discuss further.
I am looking for one test subject, unfortunately since I have been burned in the past so much I will be charging close to retail on the set.
One Person that has aftermarket Koni/Tokico D-Spec's and is interested in the spring rates/drop discussed.
$300 shipped within the states.
This is not to say that $300 is the MSRP or what the price they are going to be sold at but is a good indication of price range.
All feedback provided from test subject will be directly forwarded onto Progress.
Any revisions or changes made therein test subject will receive a new set if desired for exchange of original set.
If price of the Springs change test subject will be reimbursed accordingly.
Buying this one Prototype Spring is not cheap at all, but I am pushing it through to see it available for you guys.
I have some people in mind please PM me for those that are interested in participating.
Once I have a finalized timeline I will discuss further.
05-27-2009, 09:36 AM
#62
Row faster, I hear banjos
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Thanks for the update Fluid. Hopefully someone can step up to be a tester asap. I would if I wasn't running B-stock this season. Once the production springs are ready though I will buy a set!
Depending on how the RX-8 prototype springs work out, do update this thread with any info on possible MX-5 fitment.
Depending on how the RX-8 prototype springs work out, do update this thread with any info on possible MX-5 fitment.
06-01-2009, 07:52 AM
#66
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I will offer to be the reviewer and tester of the springs I think. I have been debating the whole coilover thing for some time, but know once I am happy with the height and corner weights, I will leave it there and fine tune other things anyway.
I would like to understand the final choices on drop and rate. But I think this is something I will do.
Thanks. Contact me if you are interested.
I would like to understand the final choices on drop and rate. But I think this is something I will do.
Thanks. Contact me if you are interested.
06-02-2009, 02:02 PM
#72
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so what is the final spring rate & drop, I got Koni shocks, how many turns on the rear you think it need. When are you going to get the prototype, I try it out for you if no one want to.
06-03-2009, 07:16 AM
#73
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Spring Rates and Drop
If final numbers have not been determined....I vote for this.
Drop: .8-1.1" drop. Would prefer no lower for geometry reasons.
Rates:
Front: 420
Rear: 280
Anything in this range works for me.
Drop: .8-1.1" drop. Would prefer no lower for geometry reasons.
Rates:
Front: 420
Rear: 280
Anything in this range works for me.
06-03-2009, 11:23 AM
#74
Row faster, I hear banjos
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These were some earlier posts from Fluid on this subject:
On spring rates...
On lowering/drop...
On spring rates...
And on that note there are now going to be 2 Springs being offered and Manufactured and designed by Progress at our Request.
There will be a Track Spring 450/260 Maybe 270, but the rear is reaching the limits of coils on the spring, If I remember correctly from our conversation today.
Then there will be a Street Spring with lower rates in the 230/180 Range.
The Track spring will be exclusively available through Fluid Motorsports and will hopefully have 2 prototypes to get some field testing *cough* need a volunteer. *Cough* Not Just yet of course
There will be a Track Spring 450/260 Maybe 270, but the rear is reaching the limits of coils on the spring, If I remember correctly from our conversation today.
Then there will be a Street Spring with lower rates in the 230/180 Range.
The Track spring will be exclusively available through Fluid Motorsports and will hopefully have 2 prototypes to get some field testing *cough* need a volunteer. *Cough* Not Just yet of course
06-03-2009, 01:52 PM
#75
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If Progress is offering such a stiff racing spring, wouldn't the initial part of the spring have to be extremely progressive? I ask because our stock dampers and the Koni yellows have a set extended length and distance between the top and bottom perch. If the rate is so high, you either need to make a shorter spring or make the initial part progressive to get the car to sit at an acceptable ride height. You can't really make the spring that much shorter though, since doing so will mean that if the damper is fully extended, the spring will unseat. Therefore, the only way I can see of making such a stiff spring while still having a good ride height is to make it very progressive.