02-27-2014, 11:08 PM | #1 |
Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
|
Coilover spring rate
Ok guys, Im ready to order my front coil overs so I can finally move on to finishing the rear of my chassis. For those of you running coil overs what spring rate are you using? I will have the C4 (obviously) front and rear suspension and running a 5.3/4l60e combo.
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
02-28-2014, 12:50 AM | #2 |
Senior Member
Join Date: Mar 2011
Location: West Plains, Missouri
Posts: 7,559
|
Re: Coilover spring rate
Josh, I think a lot of it has to do with the length of shock and length of spring. On my MII front end which has an 8" coil spring, I'm using a 700# coil spring. This is also what QA1 recommended for my truck, engine, ac, etc....Jim
__________________
my build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=459839 Jimbo's long bed step build:http://67-72chevytrucks.com/vboard/s...t=464626<br /> |
02-28-2014, 12:56 AM | #3 |
Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
|
Re: Coilover spring rate
Thanks man, From my reading it looks like 500# springs is what I would use. Hopefully someone with the C4 swap will chime in.
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
02-28-2014, 07:56 PM | #4 |
Registered User
Join Date: Sep 2009
Location: east tennessee
Posts: 158
|
Re: Coilover spring rate
|
02-28-2014, 10:30 PM | #5 |
Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
|
Re: Coilover spring rate
Thanks man, could use any other specs you have as well. Length extended, compressed, etc... Looking at some Bilsteins Thanks
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
02-28-2014, 11:46 PM | #6 |
Elev8r Man
Join Date: Aug 2010
Location: Glendora, CA
Posts: 835
|
Re: Coilover spring rate
Between 450 - 500# is what they said I needed for mine. I am using the full rear suspension w/ mono leaf though. Only coil covers in the front
__________________
1955.2 C4 Carry-all / Suburban ---> 55.2 Build Thread!! 1958 Fleetside SWB ---> 58 Fleetside Build thread 1939 2 door sedan My F.B. project page. |
03-01-2014, 08:07 PM | #7 |
Registered User
Join Date: Sep 2009
Location: east tennessee
Posts: 158
|
Re: Coilover spring rate
|
03-01-2014, 10:37 PM | #8 |
Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
|
Re: Coilover spring rate
Would love that part # if possible. Didn't think they would be 650#!!
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
03-02-2014, 04:41 PM | #9 |
Registered User
Join Date: Dec 2011
Location: Southern Oklahoma
Posts: 181
|
Re: Coilover spring rate
650# should be much closer than the 500# rate you first mentioned. The Vette lower control arm uses a more outboard coilover mounting point than most. This allows a little lower spring rate to be used, but the 500# rate with the stock engine location may be too soft.
|
03-02-2014, 06:16 PM | #10 |
Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
|
Re: Coilover spring rate
Sounds great guys. I'll go with the 650# ones if that's what FlatOut is selling. They did the R&D so I'll trust that. Anyone know the extended length, mounted length, and how much travel they have?
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
03-02-2014, 07:44 PM | #11 |
Registered User
Join Date: Sep 2009
Location: east tennessee
Posts: 158
|
Re: Coilover spring rate
|
Bookmarks |
|
|