DJB_Harvey Posted June 11, 2012 Share Posted June 11, 2012 Right I've got a pair of new old stock C.Witor 200/400 progressive front springs to try on my Mk2 PI saloon ... Any thoughts on these ? Also which way round should they be fitted ? Thanks . Link to comment Share on other sites More sharing options...
thescrapman Posted June 11, 2012 Share Posted June 11, 2012 Theoretically it shouldn't matter, I put the tighter wound bits at the bottom though as it seemed righter.CheersColin Link to comment Share on other sites More sharing options...
CRAJ Posted June 11, 2012 Share Posted June 11, 2012 DJB_Harvey wrote:Right I've got a pair of new old stock C.Witor 200/400 progressive front springs to try on my Mk2 PI saloon ... Any thoughts on these ? Also which way round should they be fitted ? Thanks .Glad you asked that Dave, I have a pair to build up which will go on the pi, I will ask CW when I ring him tomorrow as it was my first thought. What inserts are you going to use?I'm going to put them on the pi as it has no ARB and progressive springs were originally designed to do the same job (I have read somewhere!)The struts on the pi which I rebuilt last year will go on the estate as I have never touched those ones.Colin Link to comment Share on other sites More sharing options...
DJB_Harvey Posted June 11, 2012 Author Share Posted June 11, 2012 I'm going to use some Koni adjustable inserts to match my rear set . They seem to be superior to other types . Thanks for the info Colin I would've put them that way round ala valve springs .Just out of interest I've always used 160LB semi fast road springs and these have given excellent results ... Just thought I'd experiment with the progressive types . Link to comment Share on other sites More sharing options...
AlanChatterton Posted June 11, 2012 Share Posted June 11, 2012 I had a set of progressives on the front of the yellow estate................ last 12 months before they sagged and it was sitting on its stops..............Was not overly impressed, found that the 160lb semi fast ones were much better..... Link to comment Share on other sites More sharing options...
CharliesStag Posted June 11, 2012 Share Posted June 11, 2012 How long did you have them for Alan?I ask as I bought a set for my Stag, after hearing good things about them. Link to comment Share on other sites More sharing options...
AlanChatterton Posted June 11, 2012 Share Posted June 11, 2012 They were about 2 years old when I fitted them, lasted 12 months on the car.Maybe it was a dodgy batch, don't know.............. but, I found the ride a bit harsh......... Link to comment Share on other sites More sharing options...
Nick Jones Posted June 11, 2012 Share Posted June 11, 2012 I think Chris told me to put the tight coils at the top so the the dirt didn't rub between the coils. I like them. Much better ride than the ones that were on it before even though the ride height seems about the same. Dunno exactly what was fitted before mind...... they were red and came with the car......Nick Link to comment Share on other sites More sharing options...
Nick Jones Posted June 11, 2012 Share Posted June 11, 2012 I think Chris told me to put the tight coils at the top so the the dirt didn't rub between the coils. I like them. Much better ride than the ones that were on it before even though the ride height seems about the same. Dunno exactly what was fitted before mind...... they were red and came with the car......Nick Link to comment Share on other sites More sharing options...
DJB_Harvey Posted June 11, 2012 Author Share Posted June 11, 2012 Hmm interesting responses ... Still undecided as to use them or not , especially as I do like the 160's .I may toss a coin ! Link to comment Share on other sites More sharing options...
CharliesStag Posted June 11, 2012 Share Posted June 11, 2012 Going from various Stag posts from what Chris Witor has said (and the specialists who sell his springs) they say to go from the top :). It's what I plan to do anyway.I shall admit Alan, whilst a saloon is slightly different, the figures Vizard suggests for the Saloon spring rates is quite different, but then he does say to go for thicker ARBs all round instead. Link to comment Share on other sites More sharing options...
rlubikey Posted June 11, 2012 Share Posted June 11, 2012 Tighter coils at the top gives *slightly* less unsprung weight!Richard Link to comment Share on other sites More sharing options...
DJB_Harvey Posted June 12, 2012 Author Share Posted June 12, 2012 Fitted the 200/400 springs today left the Konis until I've tested them on the road ... Don't like doing 2 changes at the same time otherwise your never sure what's improved what . In the end I put the tighter coils at the top , good job I did otherwise stones definitely could get trapped . Surprisingly the ride height is now 10 mm higher which is not what I expected but the old 160's had been on for over 10 years so they probably had sagged a little . Road test reveals it's a lot smoother on the road I'll see how it goes over the next month or so before fitting the Koni's . Link to comment Share on other sites More sharing options...
ferny Posted June 12, 2012 Share Posted June 12, 2012 I don't remember my progressive ones having tighter coils... Will have to check and won't be happy if I got sent standard ones seeing as I hate to wait weeks and keep phoning up to ask where they were. Link to comment Share on other sites More sharing options...
DJB_Harvey Posted June 12, 2012 Author Share Posted June 12, 2012 If you have a look at the spring with the weight off the car on then you'll be able to tell , the progressive rate ones look almost coil bound at one end depending which way round they have been fitted . If the tighter coils are at the bottom then there's a definate chance that large stones could easily get trapped .Another thing about the progressive springs is that I didn't need to use the spring compressor to fit them ... There shorter but obviously stronger . Link to comment Share on other sites More sharing options...
CRAJ Posted June 12, 2012 Share Posted June 12, 2012 DJB_Harvey wrote:Another thing about the progressive springs is that I didn't need to use the spring compressor to fit them ... There shorter but obviously stronger .That is a bonus on its own then Dave, I didn't get a chance to ring CW today in the end, I was busy fitting one of his 6-3-1 manifolds to the estate (all in the blog later).Colin. Link to comment Share on other sites More sharing options...
CRAJ Posted June 13, 2012 Share Posted June 13, 2012 Just spoken to Chris and he has confirmed that the tighter coils go to the top as Nick remembered and as Dave has fitted them.Colin Link to comment Share on other sites More sharing options...
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