C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Spring cutting/lowering front end

Thread Tools
 
Search this Thread
 
Old 05-14-2016, 07:08 AM
  #21  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

I don't think the springs have ever been removed from the car until now. I've owned the car since 1988 and it had 43K miles then. I have finished the left side and the car is still on jacks. Right side should be done today. The right side spring looks like its seated properly now that it has been mentioned. Hopefully the car will be back on all fours today or tomorrow. Just a side note on the removal of the old CA bushings; my air chisel had them out in about 30 seconds!

Last edited by resdoggie; 05-14-2016 at 07:08 AM.
Old 05-14-2016, 07:23 PM
  #22  
mac79vette
Pro
 
mac79vette's Avatar
 
Member Since: May 2008
Posts: 582
Likes: 0
Received 8 Likes on 8 Posts

Default

Originally Posted by resdoggie
I've decided to cut one coil off the bottom and use my grinding wheel to flatten the bottom a bit. The tires are 245/45-18 which are 26.7" diam.

Buying new springs is fine provided the car is all stock with no weight changes. Mine isn't, so there is a very good chance I would need to cut the springs anyway to get the height I want. If I need to remove the springs and cut a bit a second or even a third time I'm good with that.

I should have both sides done over the weekend in conjunction with installing poly bushings on all the control arms.
I have the 550 springs and have many mods to lower weight including aluminum heads, water pump, intake also borg steering box and the list goes on. Also there was not a difference in ride height between aluminum and iron heads with the 550 springs. Years back with stock springs when I pulled the heads it did sit up quite a bit, but the 550 springs are so stiff that the weight change does not seem to make a big change in height. But here is a photo to see the height on my car.

Old 05-15-2016, 03:16 AM
  #23  
Vaipulu
Advanced
 
Vaipulu's Avatar
 
Member Since: May 2016
Posts: 61
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by ezobens
'Lowering' coil springs are relatively inexpensive. Why would anyone in this day and age still mess around with cutting springs and affecting ride quality and suspension spring rates when you can buy engineered springs to do the job properly?
This just seems to be a 70's era bubba solution that never went away IMO.
This. Cutting springs? While Aesthetically pleaseing, it sacrifices performance. Your car is worth it, purchase a performance spring. Also know that cut springs only look good for so long before they sag. If you don't plan to keep the car, cut and enjoy. If this is a forever car, you won't regret your investment into new springs.
Old 05-15-2016, 07:04 AM
  #24  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

Originally Posted by mac79vette
I have the 550 springs and have many mods to lower weight including aluminum heads, water pump, intake also borg steering box and the list goes on. Also there was not a difference in ride height between aluminum and iron heads with the 550 springs. Years back with stock springs when I pulled the heads it did sit up quite a bit, but the 550 springs are so stiff that the weight change does not seem to make a big change in height. But here is a photo to see the height on my car.

This is the height I'm looking for in the front. Nice looking ride!
Old 05-15-2016, 07:29 AM
  #25  
jb78L-82
Le Mans Master
 
jb78L-82's Avatar
 
Member Since: Oct 2007
Location: Rhode Island
Posts: 7,114
Received 740 Likes on 617 Posts

Default

Originally Posted by mac79vette
I have the 550 springs and have many mods to lower weight including aluminum heads, water pump, intake also borg steering box and the list goes on. Also there was not a difference in ride height between aluminum and iron heads with the 550 springs. Years back with stock springs when I pulled the heads it did sit up quite a bit, but the 550 springs are so stiff that the weight change does not seem to make a big change in height. But here is a photo to see the height on my car.

When I rebuilt my OEM L-82 in 2014, I already had 550 springs in the front and the replacement AFR aluminum heads did raise my front end height. I had to cut a 1/2 coil off both front springs but did have a hell of a time getting the cut spring to fit correctly in the control arm pocket.. Cutting a half coil off the 550 springs lowered my front about 1-1.25 inches...
Old 05-15-2016, 09:11 AM
  #26  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

I should have this project finished today. The CA bushings came out easy on the left side but were a bit more challenging on the right side for some reason. I thought I was going to have to remove the fan shroud to get the right upper control arm out but realized the forward CA mounting bolt was a little loose. Ah, it's a press fit so I wiggled it loose and removed the bolt. CA came right out.

I had the left side spring cocked and had to correct that. I hope its in the pocket correctly now. I have a helper today so I should get the right side spring in correctly the first time around. If the car isn't lowered more than an inch then the springs will need repositioning.
Old 05-15-2016, 10:36 AM
  #27  
doorgunner
Nam Labrat

Support Corvetteforum!
 
doorgunner's Avatar
 
Member Since: Sep 2013
Location: New Orleans Loo-z-anna
Posts: 33,898
Received 4,176 Likes on 2,737 Posts

Default

Remember to let the car weight down onto the installed springs BEFORE tightening the bolts that hold the control arm bushings in place (or they will fail in a shorttime).

Keep us updated with pics and measurements..........

Sample:



Old 05-15-2016, 07:23 PM
  #28  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

Done! Before and after pics.

Ride height before: right - 29-3/4", left - 29-1/4".
After: right - 27-3/4", left - 27-1/4"

I'm happy with the results and I doubt I will tweak any further even though one side still sits higher by 1/2".

Doorgunner, they're poly bushings so it's not necessary.
Attached Images   

Last edited by resdoggie; 05-15-2016 at 07:30 PM.
Old 05-15-2016, 08:05 PM
  #29  
kevinll63
Advanced
 
kevinll63's Avatar
 
Member Since: Jul 2012
Location: grandfield ok
Posts: 71
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by resdoggie;15922213lower 0
Done! Before and after pic2i.

Ride height before: right - 29-3/4", left - 29-1/4".
After: right - 27-3/4", left - 27-1/4"

I'm happy with the results and I doubt I will tweak any further even though one side still sits higher by 1/2".

Doorgunner, they're poly bushings so it's not necessary.
How much do you have between the fender and tire just wondering I need to lower mind I'm thinking I got 2 1/2
in between them
Old 05-15-2016, 08:08 PM
  #30  
Jebbysan
Dr. Detroit
Support Corvetteforum!
 
Jebbysan's Avatar
 
Member Since: Mar 2012
Location: New Braunfels Texas
Posts: 9,963
Received 3,892 Likes on 2,564 Posts

Default

Looks great!!! Now you are talkin....

Jebby
The following users liked this post:
resdoggie (05-15-2016)
Old 05-15-2016, 11:57 PM
  #31  
3JsVette
Race Director
 
3JsVette's Avatar
 
Member Since: Jan 2007
Location: NYC NY
Posts: 13,386
Received 2,490 Likes on 1,644 Posts

Default

Much better! Job well done.
The following users liked this post:
resdoggie (05-16-2016)
Old 05-16-2016, 06:36 AM
  #32  
midigike
Drifting
 
midigike's Avatar
 
Member Since: Apr 2011
Location: Deerfield Illinois
Posts: 1,689
Received 175 Likes on 141 Posts
2022 C3 of the Year Finalist - Modified
C3 of Year Finalist (appearance mods) 2019

Default

I'm with Jeb
Sitting right and looking tight
The following users liked this post:
resdoggie (05-16-2016)
Old 05-16-2016, 07:23 AM
  #33  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

Originally Posted by kevinll63
How much do you have between the fender and tire just wondering I need to lower mind I'm thinking I got 2 1/2
in between them
1" on the left side and 1-1/2" on the right.
Old 05-16-2016, 09:43 AM
  #34  
Danny.reamer
Instructor
 
Danny.reamer's Avatar
 
Member Since: Jan 2015
Location: shreveport Louisiana
Posts: 200
Likes: 0
Received 15 Likes on 8 Posts
Default

Originally Posted by resdoggie
Done! Before and after pics.

Ride height before: right - 29-3/4", left - 29-1/4".
After: right - 27-3/4", left - 27-1/4"

I'm happy with the results and I doubt I will tweak any further even though one side still sits higher by 1/2".

Doorgunner, they're poly bushings so it's not necessary.
So how much did u cut off? One coil 2 coils?
Old 05-16-2016, 12:07 PM
  #35  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

One coil off each spring.
Old 05-16-2016, 12:31 PM
  #36  
Kubs
Le Mans Master
 
Kubs's Avatar
 
Member Since: Oct 2007
Location: Akron Ohio
Posts: 8,871
Received 1,754 Likes on 941 Posts
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11

Default

Looks great! I do think it looked a little odd being that high before, but it looks much better where it is now.
The following users liked this post:
resdoggie (05-17-2016)
Old 05-16-2016, 02:14 PM
  #37  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

Yes, I'm not the only one who suffered from a high front end. It looked a lot worse with the 235/60-15's on the stock K-H's.

Get notified of new replies

To Spring cutting/lowering front end

Old 05-16-2016, 09:57 PM
  #38  
doorgunner
Nam Labrat

Support Corvetteforum!
 
doorgunner's Avatar
 
Member Since: Sep 2013
Location: New Orleans Loo-z-anna
Posts: 33,898
Received 4,176 Likes on 2,737 Posts

Default

Looks great!

The following users liked this post:
resdoggie (05-17-2016)
Old 05-16-2016, 10:12 PM
  #39  
htown81vette
Drifting
 
htown81vette's Avatar
 
Member Since: Jun 2011
Posts: 1,704
Received 25 Likes on 21 Posts
Default

I'm also a big fan of the 550# spring. Put 'em in my 82 and love them. That spring shown there looks like it has seen better days. They aren't that expensive (I think I paid $80 for my pair), I'd just order some 550# springs and be done with it. They even come powder coated too! Plus knowing how much work it is to get that spring out and in there, for me it's just not worth the effort to do more than once.
Old 05-17-2016, 08:23 AM
  #40  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
Thread Starter
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
Royal Canadian Navy

Default

It's just surface rust/dirt on the spring which won't effect the spring rate. For me, I just didn't see the point in spending money on new springs when there is nothing wrong with the ones I have. With the help provided on this forum, it was not a difficult job removing the spring using simple tools.


Quick Reply: Spring cutting/lowering front end



All times are GMT -4. The time now is 08:12 PM.