Like I said...if the sfc are the #1 suspension mod what should be #2 on the list?I'm talking about planting the rear to max advantage.Lca's?Torque bars?Something else?

 

LCA relocation brackets

 

either LCA relocation brackets, or strut tower brace.

 

The following would be good supension/ handling upgrades:
1) SFC
2) STB
3) Rear LCA with the LCA brackets optional
4) Pandhard Bar

These would be basic upgrade for a good STREET driven car.
I have all of the above.

 

Here's a semi-related follow-up question.I had to replace a brakeline yesterday.I had the rs up for about 3 hrs.That was long enough to put the frame in a bind.Now the windows squeeking and exhaust rattles a little.How long until it should settle out again?Should I wait for it to settle before doing the sfc?I have t-tops btw.

 

I would say brackets with LCAs also. My car was greatly changed after I did SFC, Brackets, and LCAs. I went from massive tire spin to a very little chirp.

 

#1 on my list is a solid frame front mount torque arm. The stock unit flexes and thrusts upward so hard that you are not putting all of your potential power to the pavement- as well as you will end up breaking something real soon do to excessive torque thrust movement. The tighter the better, and this is a major weak spot for stock f-bodies- don't know what the heck GM engineers were thinking when they designed that tailshaft rubbermount torque arm front mount.

 

good point... I know my tq arm mount looks pretty bad... hehe it's 13 years old not to mention the actual way the tq arm looks. I'm planning on going to a spohn tq arm after my latest project gets done (8 pt roll bar).....

 

So what about the follow up question?Should I wait for the frame to resettle before putting in sfc?How long will the resettling take?I was planning on the sfc within the next week or two.

 

I have no clue about waiting for it to resettle. I did mine right after someone ran me off the road... State Farm paid for a bunch of stuff, including an alignment and a check which I used to buy my spohn SFCs.

I know an alignment job is always a good idea before putting on a STB I remember someone did one and then had it aligned they had to slot the holes for the brackets on the strut towers.

I'm no expert but I really don't see what the problem of putting a SFC on would be.

Just wondering, What SFCs did you decide to go with?

 

After researching for months I decided to use Spohn sfc and will probably use Spohn for the other suspension upgrades as well.
My worry about settling is that I didnt want the sfc put on and give me a permanent twist, know what I mean?Never crossed my mind to get alignment done first...good idea.Im getting ready to do complete exhaust (headders back) and was going to have the shop weld the sfc in at the same time.Before anyone ask, no I dont know how much install will cost, he was supposed to get me a price but hasnt called me yet.
Thanks for the replys guys!

 

Make sure the shop takes into consideration where the Cats go under the passenger side. I know for a fact I couldn't put the SFC to trans tunnel brace on the passenger side due to no room between the duel cats to the sheet metal floor. The driver side one went on though.

Just so they don't drop the exhaust put the SFCs and bars on and then the exhaust (Cats) won't fit back cause of the bar in the way... hehe that could be bad. Just have them check for clearence and it should be ok.

Also they might have to cut out a little for the front bolt on the SFC itself... it talks about that in the instructions.

I paid somewhere from 140 to 160 for SFCs, brackets, and lcas all installed at a welding shop... and they had to drop the exhaust too from what they said.

 

anyone have diagrams of where all these SFC's STB's LCA's and the likes are? im trying to understand what they all do but i dont even know where they all are

 

SFC= sub frame connectors

They go on the sides of the car unibody. There two pieces of long metal that go on the under side of the car along where the doors go. This stiffens up the body and helps create a full frame like design.

STB= strut tower brace

This goes under the hood. They connect on top of each fender usually just on brackets with a a straight metal bar going across the engine bay. This would be a 2 point brace. Three point braces are like the 2 points but they also make another mounting point off the straight bar up to the windshield cowl area.
Helps reduce body roll and improves handling in corners.


LCAs= lower control arms

These go under the car back by the rear end. They hook up by the shocks. There just a bar with 2 places to put bolts... one on each end. The front bolt hole connects to the body. The rear bolt goes on the rear end. Reduces flex of stock lcas so they help increase traction.

Realocation Brackets

These go on the rear end axle tubes. They will lower the rear mounting point on the lcas. Help improve traction especially on lowered cars where the front of the lcas could be lower than the rear. This changes the rear mounting to lower again.

Panhard bar

This goes behind the rearend. Aftermarket ones are stronger and the adjustable ones are great for lowered cars. This helps improve cornering.

tq arm= torque arm

This connects the rear end to the transmission. Some aftermarket kits move the mounting point on the transmission to a crossmember. This helps improve sidebite in corning and the nose dive felt during braking.


Check out spohn

 

Anyone got pics of the lowercontrol arm relocation brackets installed?

 

They are really easy to install. I would do a search and see if you can't find something.


Another note:
Another good thing to do, if you don't have it, is the "wonder bar". I think IROC's and WS6 birds came with them, you would have to see if you have one. This tightens up the front end from flex. That same flex can cause the frame to crack and break apart where the steering box is connected.

 

Some Z28s may come with a wonderbar too. My 91 did...but mine was a 90-1/2 after the switch over from IROC. Labelled a 91 in all manners, but technically a 90.

 

Actually yeah I do have some pictures of mine. I'll see if I can get them scanned in later tonight and posted. I know my 90 ws6 formula didn't have a wonderbar.

Yeah... I forgot that one...

Wonderbar

Mounts under the car. It's pretty much just a bar that goes between the front sway bar mounts and the frame. This helps strengthen up the front end horizontally. I just put a BMR one on they make a big improvement in cornering from what I could tell... only drove it about 3 miles then pulled back in the garage to take the interior out.

 

stupid scanner isn't xp supported until I can figure that out guess pics are on hold

 

here's a pic of my spohn brackets, adj. lcas, and sfcs. Not the best pic in the world... I got another one of the passenger side but I seem to have miss placed it... hehe problems after problems

 

a picture says 1000 words... thanks

Don't look to hard to do

 

I painted the brackets to match. As you can see I have them set on the lowest of the 3 holes.