Fast92RS

iTrader: (2)

I just finished installing a set of these om my 92 Camaro. What a difference they make. As soon as I pulled out of the driveway I noticed how much it helps. There were no creeks and a hell of a lot less rattles especially in the dash. I had a previous camaro with t-tops and had a set of mac subframe connectors and they really help much at all. I like the UMI set. Nice quallity and nice finish. Here is the link for them UMI Performance Inc.

fb305svs

wow, those look like some nice pieces...

Xlr8torZ28

iTrader: (19)

How well would they fit with a 3" exhaust pipe??

Fast92RS

iTrader: (2)

They fit very well. The cross peice goes over the y-pipe ahead of the cat so I have about 1/2" of clearence.

CamaroCrazy23

i plan on getting their complete package subframes, panhard bar, LCA's and relocation brakets. Look out pavment here i come!

1989karr

Got any pics?

Also, do they tuck up under the frame well? Meaning, can you see them if you don't have ground effects? (base Firebird)

BadAzzGTA89

You don't have enough power to need them

Fast92RS

iTrader: (2)

They stick out just below the pinch welds maybe about a 1/4" or less. You might be able to see them if you dont have ground effects. I have the rear package and tourque arm. I did not get the relocation brackets. They make a good product. Im just waiting for them to make a sturt tower brace for third gens.

1989karr

...not yet anyway

jamon8

iTrader: (3)

umi rocks

I have a v-6 car that I put a v-8 in. I know the car was not twisted even with the 150k it had on it.

I did not want to twist it up so I put the strongest sfc I could find and I could not be happier

Bull

iTrader: (5)

I'm doing SFCs to my Formula this summer, and was looking at the ones that Lon at TDS offers. Guess I'll have to consider these, as well.

The product description notes that they may not fit '88-'92 models with dual cats, which my Formula has. Can anyone comment on this from experience?

92 Formula

iTrader: (2)

Bull,

I bought the '91 Z28 in my signature from the friend of the owner of UMI. At the time (September-October 2005) there was consideration to use this car to create one's that would fit dual cats. It didn't work out and I'm guessing to date they have not created them.

I met the owner of UMI when purchasing my Z28 and he was very nice. It has always been my intention to go to him ASAP to have him put subframes on my dual cat '91 Z28, I just haven't been able to do it yet. If I am able to do it I will post up on this board.

Bull

iTrader: (5)

Thanks for the info, 92. If it does happen, please do let us know. I guess if I end up having this job done this summer, I'll have to buy SFCs from elsewhere that will definitely fit my Formula.

irocyourpants

iTrader: (2)

Bull

I have a dual cat Iroc and the spohn sfc's fit my car with the removal of a heat shield above the cat

Bull

iTrader: (5)

That is very good to know, thank you.

I was wanting to buy the SFCs that Lon over at TDS carries since he is such a good guy to deal with. Will have to ask him if his fit the dual cat cars. If not, Spohn might be the way to go!

Anth's Iroc

I just put umi subframe connectors in my camaro and they are great.I recommend them to people.But I also like the construction of spohn too

Fast92RS

iTrader: (2)

They do make an all around great product. They were easy to put on. I even noticed now with more driving I have almost no rattles in the doors. With all there rear suspension peices in my car and there torque arm my car hanldles and drives really nice.

1989karr

more pics please!!!

sogabe

Ive read so many that SFC do make great improvement.
I think I want to buy this UMI one..

sogabe

aw wait.. will factory crappy lower control arm
work with this UMI SFC?

and if i want to upgrade my LCAs later I can take it out no problem right?

jamon8

iTrader: (3)

yes and yes

sogabe

thanks jamon.

Roddprice

I just installed the Umi Perfomance Subframe connectors underneath my Iroc along with the full tubular set up. Also the traction bar/LCA's and driveshaft loop were installed as well. Everything turned out great and you will notice an immediate improvement in the stiffnes of the ride. I would compare it to a go kart with a smile! I am running KYB's also. The biggest improvement is the chassis response. The car has a new 350 crate motor in it with a rebuilt 700R4 with 2400 stall and will bark the tires like dog on crack!! (smile) They are worth the money and reasonably priced at $199 on EBay

Ajent87

Ive also recently installed a set of UMI's subframe connectors on an 89 firebird that i just recently picked up. I have to say that the installation was totally straight foward, it was unbelieveable how easy they were to install. For the price and quality of these pieces its an absolute no brainer. Subframe connectors should be #1 on everyones list for chassis upgrades.

Roddprice

Hey, thanks for the follow up. I think if you add in the Lakewood adjustable traction bars you will really get a smile!! Enjoy! (-:

bluegrassz

iTrader: (3)

Just a few questions for you guys that just installe the SFC's.

Did you weld the to the floor panels or just at the mounting points?

Any drawback of not welding to the floor panels?

Also, how much do they weigh?

Roddprice

No the subframe connectors were just welded in at the mounting points to the existing frames and not the floor panels. As far as the weight I would say about 30lbs each but again very effective in stiffening up the chassis. Even with the performance 700R4 rebuild with 2400 stall now you can feel the firm shifts a lot more. The only drawback is the chassis is stiffened up so much now with the additional tubular products that ride quality has really suffered so don't plan on road trips with these installed unless you have an OEM style seat to absorb the bumps and bruises. The aftermarket RC's that I have offer no relief. The car has been reduced now to a short trip to the drags or around town and back home! Forget the long summer drives down 95 and I-26! Then again I have a nice restoration project with another Iroc to cover that one as well!! I will install a nice 8 point powdercoated cage as eye candy but no subframe connectors and see how it affects that one. Stay tuned!!

jtmiller92

iTrader: (42)

I have a Brand new set of UMI subframe connectors sitting in front of me right now. They look great, very well made. I cant wait to get them installed along with their lower control arm relocation brackets. Oh, as far as weight goes, i just weighed both subframe connectors on a shipping scale and they show 32.8 lbs. Scale was just calibrated so should be 100% accurate.

Roddprice

Good deal! Let me know your opinion about the ride quality afterwards. Mine rides like a covered wagon now that I've install all the tubular components. Glad I didn't stiffen up the springs or I'd be hatin life!!

chevyowner02

iTrader: (3)

I want set well I NEED a set just don't know to go with UMI or TDS but UMI has 10% off throught out December.

Roddprice

You can normally find them on EBay for sale where I purchased mine. They usually run $179-199.00

bluegrassz

iTrader: (3)

Glad to hear on the weight. Thats not too bad!

Looks like these will be one of my next projects.

1985WS6transam

iTrader: (4)

When welding do you need to take the interior carpet out?

After installation is done can you jack the car up from this point?

Should the car be on a roll on lift when installing or can it be lifted without weight on all the suspension parts?

jtmiller92

iTrader: (42)

You dont need to take it out, you can slide some 1x2's under it enough to lift the carpet by removing the door sills and front seats.

You can use it as a jacking point which is another reason for installing them on mine.

Car should be level with suspension loaded, Roll on lift or similar. Reason for that is the body can twist and bend slightly. Welding the subframe connectors on when the body is twisted etc will permanently keep it that way. I will be using 4 drive on Ramps, drive the front onto two, and then use a jack to raise the rear end keeping the suspension loaded and place the rear ramps under the wheels.

1985WS6transam

iTrader: (4)

That is what i was thinking but from looking at UMI's installation pics it shows it on a two post lift... I guess it would be safer to do it on a roll on lift or on ramps... any other opinions?

BOTTLEDZ28

iTrader: (9)

for those that want pics, you can go to ebay and find these SFC. In the ad there will be installed pics of them on a 3rd gen. I have been debating weather or not to install these and ditch my roll cage or just leave my car alone already/

jtmiller92

iTrader: (42)

I'll have the subframe connectors put on in the next few weeks but an 8 pt roll bar is next. I plan on being in the 10's this year, so it really isnt an option........jt

Rastus

I bought a set from UMI also, along with some other things. Very good quality on all of their pieces.

I bought it all from Shon at Herron Performance, good seller with good communication and great prices. Even free shipping! (Link: http://www.herronperformance.com/store/ )

I will be buying more stuff from UMI/Herron Performance in the near future.

gray89vert

iTrader: (3)

i know this has probly been asked a million times but do they work on verts? I love UMI's parts and really need some sfc's so my dad stops telling me how crappy my car is b/c it makes too much noise lol. Plus it will probly have too much power for the stock unibody to put up with when im done with it.

Rastus

http://www.umiperformance.com/2400.aspx

Straight from their site, will NOT fit verts, although I don't know exactly why. I'm pretty positive the SFC's TDS carries will fit a vert, since it IS Top Down Solutions. If you want different ones than that there are other mfg's out there.

MrDude_1

convertibles have a U channel brace piece that runs in the same location that most SFCs go.

spohn does make a set that fits verts... along with some other vendors.

deckervincent

Can someone tell my what type of welding machine they used? Is it possible to weld in sfc with an arc welder? Or is it necessary to use a mig.

MrDude_1

while possible, it is sheetmetal.... so it would be somewhat difficult.

1986Z28OWNER

iTrader: (1)

im going to be tig welding mine in, but mig will work, but i wouldnt try arc

Outlaw28

? sorry not to educated in chasis or f-bodys yet...still young lol...but i was tryin to look under my car hard to do considering how low it sits but where the lower control arms connect...i was noticing that the umi sfcs have no attachment points for the lower control arms so do i have to cut off the old connecting points..??? another? the piece that goes above the exhaust and behind the cat...how big is that piece i dont have a hole lot of room there..like how thick is that piece?? and not tryin to be a cheap skate but im not rich here...u guys know somewhere that i can get the umi sfcs with free shipping?? lol

BADMAN

iTrader: (13)

Go to group purchases on this forum. 15% off on UMI chassis parts till Jan.31. Use code number if you order. Badman

1986Z28OWNER

iTrader: (1)

^what he said!

Outlaw28

thx badman i got the discount...

mlaskow86

iTrader: (4)

just ordered a set as well with the discount... best saved 30 dollars ever. hopefully the install goes as easy as seems. does anyone have a side pic of UMI SFCs installed on a trans am with the gfx?

UnderCover89TBI

iTrader: (25)

do yall think UMI or spohn makes better parts?