Protech Shocks/Springs
Discussion
PeteGriff said:
Hi Guys, those out there who have bought and fitted the PROTECH setup. what spring rate/poundage did you go for or can recommend? Many thanks, Pete
My Protechs came with 350lb on the front and 275lb on the rear which seemed pretty good for road use. As I was using my car for hillclimbing I felt I needed a higher spring rate so I fitted 450 lb on the front and 350lb on the rear. I felt that the higher rates helped when hillclimbing but do not give such a comfortable ride on the roads.Got my Protechs direct from Protech and they came with standard spring rates whatever they are.
At first fitting them they felt good and i had them adjusted to about 8 clicks out of 12 or 13. This gave a nice ride for the road.
They have been on the car now 2 yrs and have about 5k miles on them. Still happy with them but i seem to be slowly upping the damping, think i`m on 10 now. So whether its me or the springs settling or a bit of both i`m not sure. But i am just beggining to think maybe i need some bigger poundage springs. What rating i`m not sure.
So if i were buying again, i would go with slightly heavier springs. May even change them this Winter. Now over to those who have gone heavier.
At first fitting them they felt good and i had them adjusted to about 8 clicks out of 12 or 13. This gave a nice ride for the road.
They have been on the car now 2 yrs and have about 5k miles on them. Still happy with them but i seem to be slowly upping the damping, think i`m on 10 now. So whether its me or the springs settling or a bit of both i`m not sure. But i am just beggining to think maybe i need some bigger poundage springs. What rating i`m not sure.
So if i were buying again, i would go with slightly heavier springs. May even change them this Winter. Now over to those who have gone heavier.
carsy said:
Got my Protechs direct from Protech and they came with standard spring rates whatever they are.
At first fitting them they felt good and i had them adjusted to about 8 clicks out of 12 or 13. This gave a nice ride for the road.
They have been on the car now 2 yrs and have about 5k miles on them. Still happy with them but i seem to be slowly upping the damping, think i`m on 10 now. So whether its me or the springs settling or a bit of both i`m not sure. But i am just beggining to think maybe i need some bigger poundage springs. What rating i`m not sure.
So if i were buying again, i would go with slightly heavier springs. May even change them this Winter. Now over to those who have gone heavier.
Ok so mines a Tam, but this is exactly my experience, I'm at 11/13 on the rears and 9/13 on the front.At first fitting them they felt good and i had them adjusted to about 8 clicks out of 12 or 13. This gave a nice ride for the road.
They have been on the car now 2 yrs and have about 5k miles on them. Still happy with them but i seem to be slowly upping the damping, think i`m on 10 now. So whether its me or the springs settling or a bit of both i`m not sure. But i am just beggining to think maybe i need some bigger poundage springs. What rating i`m not sure.
So if i were buying again, i would go with slightly heavier springs. May even change them this Winter. Now over to those who have gone heavier.
I like these shocks, but I think the spring rates are a bit low; surely for fastish road use you shouldn't be that far through the settings, plus I've hit the stops a dozen times now and it makes me wince thinking about what damage might be occurring.
rigga said:
Mine came with 400lb front and 325lb rear which I think is the standard spring rates they recommend and supply them with.
Currently 9 clicks front and 7 rear, though someone has them the opposite way round so not sure what's best ....
My spring rate is the same as Rigga and I think this harder spring is now standard from Pro Tech. Currently 9 clicks front and 7 rear, though someone has them the opposite way round so not sure what's best ....
I have my car 9 clicks at the rear and 7 at the front, so the reverse of Rigga.
I had a quick drive on some Welsh roads over the weekend and was 2 up. Had one major bottom out moment but that was probably me going too fast into a very bumpy bend but apart from that they have been fine.
I have increased the ride height slightly from when they were fitted (I think it is now around factory height) and by increasing the ride height I have added a bit more pre load into the springs.
Good luck.
FactBV said:
I went for 375 front and 300 rears as I am having poly bushes all around as well and am more interested in a reasonable ride on the road. I think that these figures are still each 25 lb above standard. I will see how it goes.
Hi FactBV, let me know how you get on as I am more interested in a reasonable ride on the road. All my bushes changed for Poly type couple of years ago. As I said previously Protech offer 400 and 325 as standard.PeteGriff said:
Hi FactBV, let me know how you get on as I am more interested in a reasonable ride on the road. All my bushes changed for Poly type couple of years ago. As I said previously Protech offer 400 and 325 as standard.
Sure no problem, will do, although as it is having a full body off, I will not be on the road until the new year. You're correct 400/325 is what Protech suggest, but I am sure that is not the 'original' standard. if you see what I mean. I think that the 375/300 I have chosen is still harder than the original springs fitted at manufacture, although I could be wrong.From another thread:
I spoke to the man at Eibach a couple of years ago when I was trying to sort my Griff spring rates.
I quoted him my original TVR spring part numbers and this is what he came back with;
Front C0098 48.6 N/mm x 5.709 = 277.5 lbs/in
Rear D0103 38 - 60 N/mm (progressive rate spring) x 5.709 = 217 to 342.5 lbs/in
The conversion factor he told me to use was 5.709 x the rate in N/mm
I spoke to the man at Eibach a couple of years ago when I was trying to sort my Griff spring rates.
I quoted him my original TVR spring part numbers and this is what he came back with;
Front C0098 48.6 N/mm x 5.709 = 277.5 lbs/in
Rear D0103 38 - 60 N/mm (progressive rate spring) x 5.709 = 217 to 342.5 lbs/in
The conversion factor he told me to use was 5.709 x the rate in N/mm
A900ss said:
From another thread:
I spoke to the man at Eibach a couple of years ago when I was trying to sort my Griff spring rates.
I quoted him my original TVR spring part numbers and this is what he came back with;
Front C0098 48.6 N/mm x 5.709 = 277.5 lbs/in
Rear D0103 38 - 60 N/mm (progressive rate spring) x 5.709 = 217 to 342.5 lbs/in
The conversion factor he told me to use was 5.709 x the rate in N/mm
Cheers A900ss, a good bit of data. Regards, PeteI spoke to the man at Eibach a couple of years ago when I was trying to sort my Griff spring rates.
I quoted him my original TVR spring part numbers and this is what he came back with;
Front C0098 48.6 N/mm x 5.709 = 277.5 lbs/in
Rear D0103 38 - 60 N/mm (progressive rate spring) x 5.709 = 217 to 342.5 lbs/in
The conversion factor he told me to use was 5.709 x the rate in N/mm
Just ordered my set of Protechs, stayed with the 400/325 spring rate as produced by them for the Griff. Git a cracking deal so well pleased. Can't wait to receive them now!! Shall take the opportunity of getting my wishbones stripped and powder coated whilst everything is stripped down. Shall keep you posted, Pete
P.S. decided this is an early Christmas present to myself.....
P.S. decided this is an early Christmas present to myself.....
Oggs said:
Where did you get them from?? I might be changing my shocks on the Chim and looking at options. Cheers
Got them from Protech themselves. Look at their website - http://www.protechshocks.co.uk/products/tvr-shock-... - then give them a call to discuss your requirement! Regards, PeteI've just removed protech from my website, i don't think its nice that they are basically selling at trade price to the general public and cutting out the people who've established them in the tvr world .. my protechs were 610.00ish delivered but built to my spec (not the spec you buy direct from protech) , always stripped and greased the adjusters, greased the damper bodies with ceramic spray grease, had them built to a spec to suit you (eg valve changes, length changes, bump stop changes, spring rate changes .. based on years of experience of these cars) and then would change FOC if you weren't happy. All for 160 pounds profit. I don't think that's bad value, but sadly the bottom line these days is price. 
Sadly I don't think there are any other budget dampers worth bothering with
Sadly I don't think there are any other budget dampers worth bothering with
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