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| Protech Springs http://www.gtmdrivers.com/forum/protech-springs-t4593.html |
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| Author: | nikvanorton [ Mon Jan 18, 2021 10:41 am ] |
| Post subject: | Protech Springs |
I'm thinking of getting a set of Protechs for my V6 Libra. Any idea of recommended spring rates? It's a road car and not going to be used on the track so I'd like a bit of comfort as well as handling. My car has anti roll bars front and rear and is running on 17 wheels. Thanks. |
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| Author: | sidewinder [ Mon Jan 18, 2021 12:48 pm ] |
| Post subject: | Re: Protech Springs |
The protechs come with springs with a reasonable roadworthy spring rate. |
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| Author: | nikvanorton [ Mon Jan 18, 2021 1:11 pm ] |
| Post subject: | Re: Protech Springs |
Do you know what they are, I just spoke to Protech and they didn’t seem sure. |
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| Author: | sidewinder [ Mon Jan 18, 2021 2:09 pm ] |
| Post subject: | Re: Protech Springs |
250lb front, 300 lb rear sez on their website. I have protech fronts with 250 (no ARB) and am happy on the road. I have AVO with 300 springs on rear now, I will buy a set of protech rear eventually, when i can afford to. |
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| Author: | nikvanorton [ Mon Jan 18, 2021 2:17 pm ] |
| Post subject: | Re: Protech Springs |
Brilliant, thanks. |
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| Author: | sanzomat [ Mon Jan 18, 2021 4:09 pm ] |
| Post subject: | Re: Protech Springs |
300 rear seems a bit soft to me. Mine are 425 and aren't overly stiff, I'd say about right. |
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| Author: | nikvanorton [ Mon Jan 18, 2021 11:47 pm ] |
| Post subject: | Re: Protech Springs |
That sounds about right, the current GAZ springs are 9” 450lb. |
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| Author: | sidewinder [ Tue Jan 19, 2021 12:31 pm ] |
| Post subject: | Re: Protech Springs |
I just checked, i def have 10in FL x 1.9in ID x 300lbs/in rate on my rear Avos. Never really found em to be too soft I don't think.. |
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| Author: | Spider [ Wed Jan 20, 2021 10:46 pm ] |
| Post subject: | Re: Protech Springs |
Protech website says shocks come with 250 front and 300 rear. https://www.protechshocks.co.uk/protech-shocks-gtm-libra-front-and-rears/ |
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| Author: | roger [ Fri Jan 22, 2021 4:45 pm ] |
| Post subject: | Re: Protech Springs |
Back in the day front were 250 rear 450 Later when RDM were making them the spring rates dropped quite a bit. Some years ago Bob Snooks I think along with another member did all the sums to work out wheel frequency etc and came up with some answers. There is a topic on it somehwere. I tried the lower rates and found the ride very compliant but too much roll and too soft for me. I tried lots of different combinations and ended up back with 250 450. I also had anti roll bars. |
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