Flex, or lack of it

**LowRanger** · 24th September 2010, 04:48 PM

Originally Posted by nayto

Lowranger, If i could grab the dobinson numbers off you that'd be great, next ones i buy i dont want to have to do it again for a while. So the 7100 Bilsteins i hear people taking about, are the mounts the same as standard?

nayto
The part numbers for the springs are RC70-511V rear
and C70-510V front
And you will need to change the lower rear mount and both the front mounts to run 7100 Bilsteins,as they come standard with eye connections on both ends.But I have heard that you can special order different mount???

Wayne

**LowRanger** · 24th September 2010, 05:04 PM

Originally Posted by rick130

No one wants to divulge rates, the crazy part is it only takes a minute in a rate tester.
When I was racing we'd just get a corner weight pad from the corner weight gauges and put them in a press (or drill press) and have a spring rated instantly.
These days any digi scale would do.
(FWIW Kings would wind whatever rate 60mm ID spring I wanted in whatever free length and they always rated spot on, unfortunately they'd also take a set after a while....)

If I had the exact wire diameter and exact # of coils and i can work the rate out, or at least get pretty close.

They actually sound close to what I'm using in the front anyway, (17" free length, 220lb/in) I was just curious what they classified as 'flexi'

Rick

I just went out and checked the springs.
The fronts are 11 coils and the diameter of the wire is 16.5mm,which allowing for paint thickness would make it 16mm.
The rears are 12 coils and the wire thickness is 19.5mm.Making them 19mm thick.

I also checked the springs that I took out,they were 15 1/2" and the ones I put in would have been close to 17" I estimate.

And the new springs are progressive
When I ordered them,I was told that they were the same as def-90 Sams.With obviously the larger diameter 110 rear springs.
Regards

Wayne

**flagg** · 27th September 2010, 08:17 PM

Originally Posted by LowRanger

Rick

I just went out and checked the springs.
The fronts are 11 coils and the diameter of the wire is 16.5mm,which allowing for paint thickness would make it 16mm.
The rears are 12 coils and the wire thickness is 19.5mm.Making them 19mm thick.

I also checked the springs that I took out,they were 15 1/2" and the ones I put in would have been close to 17" I estimate.

And the new springs are progressive
When I ordered them,I was told that they were the same as def-90 Sams.With obviously the larger diameter 110 rear springs.
Regards

Wayne

Hi Wayne,

What engine do you have? do you find the spring rates to be good / well suited?

Cheers

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