Linear (No progressive) springs - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

qitorr · 08-22-2014, 11:18 PM

Was just looking for more information on this. Thanks

Shankenstein · 08-23-2014, 12:01 AM

Since it's somewhat relevant here... has anyone run across the dimensions for the stock springs (or any 86 springs, really)?

Internal Diameter, External Diameter, Wire Diameter, # of Active Coils, Free Length, Solid/Block Length, Allowable Length, etc.

It would be nice to have this information available if people wanted to make custom springs (such as non-lowering stiffer springs).

Spring Calculator on eFunda

boredom.is.me · 08-23-2014, 12:53 AM

Quote:

Originally Posted by Shankenstein

Since it's somewhat relevant here... has anyone run across the dimensions for the stock springs (or any 86 springs, really)?

Internal Diameter, External Diameter, Wire Diameter, # of Active Coils, Free Length, Solid/Block Length, Allowable Length, etc.

It would be nice to have this information available if people wanted to make custom springs (such as non-lowering stiffer springs).

Spring Calculator on eFunda

I can get some of those for you.

Shankenstein · 08-23-2014, 03:58 PM

Quote:

Originally Posted by boredom.is.me

I can get some of those for you.

I'm getting married next weekend, so after the honeymoon... I'll be back to contributing.

In lieu of legitimate progress, I present to you guys my 3D printed cake topper (currently being painted):

boredom.is.me · 08-23-2014, 04:10 PM

FRONT:
uncompressed height - 11.625"
wire dia. - .5"
coil OD - 4.625"
coil ID - math
number of coils - 5, but there is still the bottom coil for seating purposes

REAR:
uncompressed height - 10.5"
wire dia. - .5"
coil OD - 4.125"
coil ID - math
number of coils - 4, but there is still the bottom coil for seating purposes

One interesting note - The OEM dust boot/shield actually requires quite a bit of force to compress.

Shankenstein · 08-23-2014, 05:11 PM

Quote:

Originally Posted by boredom.is.me

FRONT:
uncompressed height - 11.625"
wire dia. - .5"
coil OD - 4.625"
coil ID - math
number of coils - 5, but there is still the bottom coil for seating purposes

REAR:
uncompressed height - 10.5"
wire dia. - .5"
coil OD - 4.125"
coil ID - math
number of coils - 4, but there is still the bottom coil for seating purposes

One interesting note - The OEM dust boot/shield actually requires quite a bit of force to compress.

Thanks for the research! I've added your data to the Suspension Modelling thread. Your values yield ~250 lb/in (Front) and 450 lb/in (Rear)... which is a little high that's a good starting point for the group to refine.

boredom.is.me · 08-23-2014, 05:23 PM

Quote:

Originally Posted by Shankenstein

Thanks for the research! I've added your data to the Suspension Modelling thread. Your values yield ~250 lb/in (Front) and 450 lb/in (Rear)... which is a little high that's a good starting point for the group to refine.

I'll double check later. As for the coils, the 'start' and stop are not in line. It would be 5.5 coils or something like that.

08-23-2014, 12:01 AM	#30
Shankenstein Frosty Carrot Join Date: Jan 2013 Drives: The Atomic Carrot Location: Baltimore, MD Posts: 513 Thanks: 272 Thanked 431 Times in 199 Posts Mentioned: 19 Post(s)	Since it's somewhat relevant here... has anyone run across the dimensions for the stock springs (or any 86 springs, really)? Internal Diameter, External Diameter, Wire Diameter, # of Active Coils, Free Length, Solid/Block Length, Allowable Length, etc. It would be nice to have this information available if people wanted to make custom springs (such as non-lowering stiffer springs). Spring Calculator on eFunda __________________ If you think you're nerd enough, join in the discussions about Suspension and Aerodynamic modelling! Wall of Fame - JDL Auto Design, Raceseng, Vishnu Tuning, Penske Shocks, Nameless, Perrin, RaceComp Engineering, Essex/AP Racing, Verus, RacerX Wall of Shame - aFe Takeda, Wilwood, FA20Club

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08-22-2014, 11:18 PM	#29
qitorr Senior Member Join Date: Oct 2012 Drives: 2015 Series.Blue Location: Durham, NC Posts: 172 Thanks: 77 Thanked 82 Times in 50 Posts Mentioned: 4 Post(s)	Was just looking for more information on this. Thanks

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