fs: progress/cattman coilovers
09-16-2008, 10:16 PM
#1
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fs: progress/cattman coilovers
SOLD
Selling 02 maxima cattman/progress coilovers. Around 15k on them. Front left strut needs a rebuild. No leaks on any. Good news is these are fully rebuildable. These had a great ride and also handled great. Designed specifically for our vehicles. I contacted progress and they said it would be around $69 a corner to rebuild.
$700 shipped.
Selling 02 maxima cattman/progress coilovers. Around 15k on them. Front left strut needs a rebuild. No leaks on any. Good news is these are fully rebuildable. These had a great ride and also handled great. Designed specifically for our vehicles. I contacted progress and they said it would be around $69 a corner to rebuild.
$700 shipped.
Last edited by inspiredbykev; 12-01-2008 at 08:42 PM.
09-20-2008, 09:34 AM
#7
my guess is most people on here are cheap. second they dont wanna buy coilovers to send out as soon as they get them to have them rebuilt. i think you would probably be better off sending them in yourself and having them rebuilt and then selling them for that much more.
09-21-2008, 06:19 PM
#9
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This is what progress quoted me.
Those start at $69 per corner depending on what needs to be replaced.
They usually don't go over that price unless you've damaged a rod or
something.
Those start at $69 per corner depending on what needs to be replaced.
They usually don't go over that price unless you've damaged a rod or
something.
10-15-2008, 08:39 PM
#17
10-23-2008, 10:22 PM
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Q1 - adjusting. Can Progress offer an adjustable strut for an additional charge?
Q2 - valving. Are these rebuildable for revalving at capable shops?
Q3 - camber. Can I reuse my existing SpecProd adjustment bolts?
SpecProd bolts
Q4 - spring rate. What exactly are the front & rear rates?
Answers:
Q1 - No, Progress has the perspective that if the suspension is engineered properly for the specific application, adjustability of strut valving is not that useful, simply increasing the likelihood that the struts will be incorrectly set up. The Progress coilover line is quite successful and well-reviewed for simply working very well without a lot of unnecessary flourishes, and none of their coilovers have adjustable strut valving (see the recent SCC article on racing SE-Rs, and their review of the Progress coilover suspension, which they paid $1500 for, BTW and considered a great deal). In sort, of course it could be done, but they don't see a market for a strut that they'd have to charge several hundred more $ for, and which would be of marginal benefit.
Point being, if it was adjustable but came to you at the perfect setting for the springs, you could make that ride stiffer or softer, but if you adjusted it in either direction, the suspension's actual handling capabilities would deteriorate. Now lets say that you had no idea what the ideal performance adjustment was because the manufacturer didn't either, which seems to be the case with most adjustable coilovers. You could mess around with those settings forever and possibly never happen across, or realize when you hit the ideal performance adjustment "set". No worries about that with the Cattman-Progress coilovers because they show up just right for 95% of the users, and if you're focussed on a specialized application that requires different springs weights and valve settings to be just right, that can be done too (see custom services, below).
Q2 - There's no reason for the basic strut unit to ever wear out because these are perpetually rebuildable, in terms of replacing seals to make them like new again, or re-valvable, in terms of changing the settings to match different springs for a specialized use such as HD drag racing, intense track work, etc. Progress has an engineering lab on site that specializes in working with individuals and racing teams to determine the ideal spring and strut adjustment for specific applications, at very reasonable prices. Their expertise is formidable, but I think they will also provide instructions for "do-it-yourself" re-valving.
This also sets them apart from their Japanese counterparts, because all the technical support and custom services are available here stateside, people you can call on the phone who know the product, and US-based spring and spare parts inventories.
Q3 - Any camber bolts will work. I like the Progress bolts because they come 2 per side, which allows for twice as much adjustment. I don't know of any single bolt setups that can give you 2+ degrees.
Q4 - 400lb front, 350lb rear and I'll note that they are the proper length, i.e. they are still slightly under compression at full extension (another advantage of the shortened strut bodies).
Q2 - valving. Are these rebuildable for revalving at capable shops?
Q3 - camber. Can I reuse my existing SpecProd adjustment bolts?
SpecProd bolts
Q4 - spring rate. What exactly are the front & rear rates?
Answers:
Q1 - No, Progress has the perspective that if the suspension is engineered properly for the specific application, adjustability of strut valving is not that useful, simply increasing the likelihood that the struts will be incorrectly set up. The Progress coilover line is quite successful and well-reviewed for simply working very well without a lot of unnecessary flourishes, and none of their coilovers have adjustable strut valving (see the recent SCC article on racing SE-Rs, and their review of the Progress coilover suspension, which they paid $1500 for, BTW and considered a great deal). In sort, of course it could be done, but they don't see a market for a strut that they'd have to charge several hundred more $ for, and which would be of marginal benefit.
Point being, if it was adjustable but came to you at the perfect setting for the springs, you could make that ride stiffer or softer, but if you adjusted it in either direction, the suspension's actual handling capabilities would deteriorate. Now lets say that you had no idea what the ideal performance adjustment was because the manufacturer didn't either, which seems to be the case with most adjustable coilovers. You could mess around with those settings forever and possibly never happen across, or realize when you hit the ideal performance adjustment "set". No worries about that with the Cattman-Progress coilovers because they show up just right for 95% of the users, and if you're focussed on a specialized application that requires different springs weights and valve settings to be just right, that can be done too (see custom services, below).
Q2 - There's no reason for the basic strut unit to ever wear out because these are perpetually rebuildable, in terms of replacing seals to make them like new again, or re-valvable, in terms of changing the settings to match different springs for a specialized use such as HD drag racing, intense track work, etc. Progress has an engineering lab on site that specializes in working with individuals and racing teams to determine the ideal spring and strut adjustment for specific applications, at very reasonable prices. Their expertise is formidable, but I think they will also provide instructions for "do-it-yourself" re-valving.
This also sets them apart from their Japanese counterparts, because all the technical support and custom services are available here stateside, people you can call on the phone who know the product, and US-based spring and spare parts inventories.
Q3 - Any camber bolts will work. I like the Progress bolts because they come 2 per side, which allows for twice as much adjustment. I don't know of any single bolt setups that can give you 2+ degrees.
Q4 - 400lb front, 350lb rear and I'll note that they are the proper length, i.e. they are still slightly under compression at full extension (another advantage of the shortened strut bodies).
10-24-2008, 01:14 AM
#21
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I thought they were 450/350 spring rates respectively.
The offer I gave was very low ball but it was worth a shot...I already have these on my car, so whomever buys them will have the best perfoming suspension you can get without going completely custom...I wanted these as an extra set to put on so I don't have downtime when rebuilding my set.
Also, I have a single bolt from progress/cattman and they gave me roughly 2.3 degrees negative on both sides which suprised the alignment guy as well.
The offer I gave was very low ball but it was worth a shot...I already have these on my car, so whomever buys them will have the best perfoming suspension you can get without going completely custom...I wanted these as an extra set to put on so I don't have downtime when rebuilding my set.
Also, I have a single bolt from progress/cattman and they gave me roughly 2.3 degrees negative on both sides which suprised the alignment guy as well.
10-24-2008, 08:09 AM
#22
As for the spring rates, Progress did change the rates shortly after public release on from 400/350 to 450/350 (or viceversa)
10-26-2008, 11:25 AM
#23
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That in itself doesn't mean it's blown. Many dampers don't self rebound by design. The rate/ease at which it compresses and extends might show that better.
As for the spring rates, Progress did change the rates shortly after public release on from 400/350 to 450/350 (or viceversa)
As for the spring rates, Progress did change the rates shortly after public release on from 400/350 to 450/350 (or viceversa)
10-27-2008, 04:52 AM
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