Which Sub Frame Connectors?
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
Which Sub Frame Connectors? I have a stock '98 Z28 M6 with t-tops. I have heard that Sub Frame Connectors will reduce rattles and squeaks by stiffening up the chassis. In further research I have found that not all Sub Frame Connectors are "true" sub frame connectors and don't actually do anything.
So a couple of things I am wondering. Between a midwest chassis, a BMR, and an UMI 3 point bolt in, what SFC is the best? If I got the UMI, the bolt-in would just be temporarily. Keep in mind, I just want to get rid of the squeaks and rattles. The car is a DD and maybe does 5 quarter mile runs a year.
So a couple of things I am wondering. Between a midwest chassis, a BMR, and an UMI 3 point bolt in, what SFC is the best? If I got the UMI, the bolt-in would just be temporarily. Keep in mind, I just want to get rid of the squeaks and rattles. The car is a DD and maybe does 5 quarter mile runs a year.
It might get rid of them.. but if it doesn't then don't be suprised. Some people get more rattles. Rattles and squeaks are caused by lots of things.
Not that i wouldnt put on subframe connectors. I like them for the jackpoints. Makes jacking the car up much more convenient.
Not that i wouldnt put on subframe connectors. I like them for the jackpoints. Makes jacking the car up much more convenient.
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
It might get rid of them.. but if it doesn't then don't be suprised. Some people get more rattles. Rattles and squeaks are caused by lots of things.
Not that i wouldnt put on subframe connectors. I like them for the jackpoints. Makes jacking the car up much more convenient.
Not that i wouldnt put on subframe connectors. I like them for the jackpoints. Makes jacking the car up much more convenient.
the SLP weld-in can be bolted (there is a thread buried somewhere on this site that lists the bolt sizes) and are a good bit cheaper then the UMI's.
they are the ones I have always planned to install myself.
they are the ones I have always planned to install myself.
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
Trending Topics
UMI boxed weld on subframes are beefy and make the car really rigid feeling. I have had the same style on 4 different fbody cars and I would put them on the next one I own if that day ever comes.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Teching In
Joined: Dec 2013
Posts: 40
Likes: 0
From: Knoxville
i have the UMI 2-point tubular bolt in. They eliminated all my t-top moans and dash creaks. Greatly stiffened the feel of the car. Will weld in eventually.
Everyone says 3-point weld in or bust, but im very happy with mine. It's a street car.
If you get bolt-in though be sure to retorque everything after a couple days. I noticed a rattling and creaks coming back, but the front bolts that mount to flatbar had just worked themselves out a bit. Threadlocker fixed that.
Edit: Also if you can fford it go ahead and get a swaybar set. I've just got the front hollow 32mm from Strano and it made just as big of a difference in feel of the car as the SFCs did IMO.
Everyone says 3-point weld in or bust, but im very happy with mine. It's a street car.
If you get bolt-in though be sure to retorque everything after a couple days. I noticed a rattling and creaks coming back, but the front bolts that mount to flatbar had just worked themselves out a bit. Threadlocker fixed that.
Edit: Also if you can fford it go ahead and get a swaybar set. I've just got the front hollow 32mm from Strano and it made just as big of a difference in feel of the car as the SFCs did IMO.
Last edited by 98ws666; Apr 16, 2014 at 03:53 PM.
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
i have the UMI 2-point tubular bolt in. They eliminated all my t-top moans and dash creaks. Greatly stiffened the feel of the car. Will weld in eventually.
Everyone says 3-point weld in or bust, but im very happy with mine. It's a street car. If you get bolt-in though be sure to retorque everything after a couple days. I noticed a rattling and creaks coming back, but the front bolts that mount to flatbar had just worked themselves back.
Threadlocker not a bad idea either.
Everyone says 3-point weld in or bust, but im very happy with mine. It's a street car. If you get bolt-in though be sure to retorque everything after a couple days. I noticed a rattling and creaks coming back, but the front bolts that mount to flatbar had just worked themselves back.
Threadlocker not a bad idea either.
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
Honestly any of those option will work well for what you are purchasing the subframe connectors for. We offer our BMR subframe connectors in both a boxed and tubular version. I honestly prefer the boxed version over the tubular version because they will give you many jacking points on the car once they are installed.
We can definitely ship to Canada for you so if you decide one the BMR subframe connectors just let me know and we can get you taken care of.
BMR tubular subframe connectors (SFC004)
BMR boxed subframe connectors (SFC001)
We can definitely ship to Canada for you so if you decide one the BMR subframe connectors just let me know and we can get you taken care of.
BMR tubular subframe connectors (SFC004)
BMR boxed subframe connectors (SFC001)
__________________
Glenn ***
Sales Tech
www.bmrsuspension.com
813.986.9302
Find a Quality alignment shop near you!
Glenn ***
Sales Tech
www.bmrsuspension.com
813.986.9302
Find a Quality alignment shop near you!
Thread Starter
Registered User
Joined: Feb 2014
Posts: 18
Likes: 0
From: St. Albert, Alberta, Canada
Yeah.....and I guess having to weld them really isn't that much of an inconvenience. I'm sure I can find someone to weld them in there for a fairly reasonable price. I like the fact that they are true sub frame connectors and not lower control arm connectors. I'll have to find out what it costs to have them shipped to Canada (assuming they do ship to Canada).
What is the consensus/opinions on midwest chassis's solution which attaches to the actual subframes? I know they mention that the mounting points of other SFCs dont really make them subframe connectors. But are they pretty much providing the same rigitity?
The MWC connectors are actual subframe conectors.
If you look at the design of the chassis you will see that the LCA box is nowhere near the actual "frame" of ther car. The other styles bolt to the outer side of the LCA bracket and run along the pinch weld which is already the strongest point of a uni-body car, some designs won't actually even contact the front subframe and will just attach to the floor crossbrace. Designs like this should be called a "jacking rail", not a "subframe connector" because it doesnt actually connect the front and rear subframes directly.
MWC will ship to CA no problem, and we have the connectors in stock.
Teching In
Joined: Dec 2013
Posts: 40
Likes: 0
From: Knoxville
I'm no expert, but "true SFC" or not the LCA based design absolutely improved chassis stiffness considerably. Not trying to argue or say they are superior, but they are obviously more than "jacking rails"....
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
That one went right over your head. You and him are saying the same thing.