Notices

(strut measurement)installing paragon coilover. making my own lower spring hat

 
Old 05-04-2011, 02:17 AM
  #1  
jss
User
Thread Starter
 
jss's Avatar
 
Join Date: Dec 2010
Location: Canada
Posts: 572
Likes: 0
Received 0 Likes on 0 Posts
Default (strut measurement)installing paragon coilover. making my own lower spring hat

well i got the front koni inserts with hypercoil 12" springs with 4" helper spring.
I stripped the factory struts which as most of you know need to be cut etc. all that is done. but I also cut away and grinded the lower spring hat(part that the adjustable collar rest on) so I am looking if someone can give me a measurement. silly me I forgot to take a factory measurentment before hand


I made new hats on the lathe today and wanted to confirm placement before I weld them on.

on a side note thats bothering me I don't want this to happen when I lower the front ride height.(note the gap from coil to helper)
mind you he may have a short spring then mine.
the one I have is 12" and 4" with helper.

so now I am thinking if this is going to happen I might a well weld the lower hat I made 1" higher.
jss is offline  
Old 05-04-2011, 09:10 AM
  #2  
Oddjob
Addict
Rennlist Member
 
Oddjob's Avatar
 
Join Date: Aug 2003
Posts: 4,314
Likes: 0
Received 0 Likes on 0 Posts
Default

Changing the perch location will change your ride height by 1".

Spring gap with the suspension at full droop is due to spring rate and shock travel. The stiffer the spring, the less compression under load. 12" long - what spring rates are you using?

If you end up going with higher rates (maybe over 400+), only way to avoid what you see in the picture above is to have koni rebuild struts to shorten the travel - but they will not do that with the insert type units. So nothing you can do, other than trying to find a longer tender/helper spring (unfortunately, I think they are all pretty much the same height)

Also - are you welding on threaded collars, or welding on a fixed perch?

Last edited by Oddjob; 05-04-2011 at 09:52 AM.
Oddjob is offline  
Old 05-04-2011, 11:41 AM
  #3  
jss
User
Thread Starter
 
jss's Avatar
 
Join Date: Dec 2010
Location: Canada
Posts: 572
Likes: 0
Received 0 Likes on 0 Posts
Default

sorry should have added its for street use so i got 225 rates.

I am welding a perch and then just slipping the collar to rest on it.
jss is offline  
Old 05-04-2011, 10:23 PM
  #4  
Oddjob
Addict
Rennlist Member
 
Oddjob's Avatar
 
Join Date: Aug 2003
Posts: 4,314
Likes: 0
Received 0 Likes on 0 Posts
Default

I dont think you will have any problem with a 225 lb/in spring falling off the spring seats/hats at full droop.

Any distance around 3.5 to 3.75" for the collar seat will work just fine.
Attached Images  
Oddjob is offline  
Old 05-05-2011, 01:59 AM
  #5  
jss
User
Thread Starter
 
jss's Avatar
 
Join Date: Dec 2010
Location: Canada
Posts: 572
Likes: 0
Received 0 Likes on 0 Posts
Default

I went with 2.75" on ur tape measure. I first did a temp install with a few spot welds at factory measurement but to get the car low it would have to be adjusted to right on the buttom of adjuster. so I went a little lower. in my case the helper uses up about 1/4" too
jss is offline  
Old 05-05-2011, 08:50 AM
  #6  
tifosiman
Super User
 
tifosiman's Avatar
 
Join Date: Jan 2002
Location: The Heart of it All
Posts: 12,189
Likes: 0
Received 0 Likes on 0 Posts
Default

jss,

I logged in today and saw your PM. Looks like Jim's answered your questions with great advice as usual.

Take a pic when you are done to show us how good it looks...

Take care,

Jeremy
tifosiman is offline  
Old 05-05-2011, 09:29 AM
  #7  
Oddjob
Addict
Rennlist Member
 
Oddjob's Avatar
 
Join Date: Aug 2003
Posts: 4,314
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jss View Post
I went with 2.75" on ur tape measure. I first did a temp install with a few spot welds at factory measurement but to get the car low it would have to be adjusted to right on the buttom of adjuster. so I went a little lower. in my case the helper uses up about 1/4" too
I was thinking you might have to go lower due to the 12" springs. Normally you would use 10" free height for that spring rate range.

Are you deleting the ABS/Pad Wear connector?
Oddjob is offline  
Old 05-05-2011, 12:11 PM
  #8  
jss
User
Thread Starter
 
jss's Avatar
 
Join Date: Dec 2010
Location: Canada
Posts: 572
Likes: 0
Received 0 Likes on 0 Posts
Default

yup thats all gonzo too
jss is offline  
Old 04-11-2012, 10:20 PM
  #9  
odurandina
Slayer of Economic Optimism

Rennlist Member
 
odurandina's Avatar
 
Join Date: Oct 2009
Location: one thousand, five hundred miles north of Ft. Lauderdale for the summer.
Posts: 27,509
Likes: 0
Received 4 Likes on 2 Posts
Default

anyone know what happened to Tifosiman ?

this guy was a solid contributor to the forum.
odurandina is offline  

Thread Tools
Search this Thread
Quick Reply: (strut measurement)installing paragon coilover. making my own lower spring hat


Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: