Just have to show off! Anyway, after installing a set of Spohn tubular sfc's on a friends car, I decided I really didnt see anything I couldnt build myself. Really didnt like the way the tubular design fit to the floor, so I went with square tube. Fits nice and tight on both sides.. Oh and I have never seen a set of Spohn square tubes, nor taken any measurements off of any other sfc. I did get ideas from the Spohn tubulars(like the tubular cross pieces) but took no measurements. Also dont ask me to build any more!! I'm going to build a couple sets for friends and thats it! Too much time involved.


Heres a link to a thread with my pics.. TGO doesnt like MSN photos for some reason.

SFC's

 

i'd guess it took me 6 or 8 hours to make mine

 

hey chevymad!!! great job on the sfc's. I am thinking about doing some myself. working in a machine shop I have access to enough tools (cnc saws for accurate cuts) and materials etc. I was never really sure what route the sfc took until now. I thought along the rockers would be the only place but I wasn't really sure. if anyone else has any pics of there sfc INSTALLED I think we would all like to see them.

 

My homemade SFC are also from 2" square tube but I don't run them along the rocker panels. Mine attach right at the end of the subframe. Mine attaches roughly where your round tube attaches. They're close enough together that I used them to mount my tranny crossmember to.

 

very nice job! can you get some pics of where the ends are welded to the subframes? hard to tell from those pics. thanks!

 

Do you think we could get some measurments such as length and angles. I have a guy that can make me some if he has measurements and good pics. Looks really good!

 

looks good! there's really nothing there that justifies spending $300 IMO. My SFC's cost me about $15 and about 3-4hours of work.

Jubba; just crawl under your car and do some measurements.
that way you know what yoru measuring from and have a better idea what you plan to do.

 

what do you guys think about those sub frame sonnectors for 80 bucks or whatever in summit...what are they lacking...size...reinforcements...just kinda curious...i want the squeeks to go away....but i dont got $200.....i got cousin that is a welder but i dont really know if its a good idea to build my own and he doesnt have too much car knowledge..thanks

 

Here is one of my Alstons.

 

I think that they fit VERY well.

 

hey 88aziroc, did you get the $100 weld in ones or the $200 bolt in ones and then weld them? if you got the weld in ones, did you have to cut the floor to make them fit? cuz that's what i've heard

 

I got the $200.00 ones that weld in. I bought them off of someone on the boards. I got the SFC's and an Edelbrock STB for $275.00 shipped. There were NO modifications done to the car, except the cat had to be moved forward about 2 inches. They guy who put it in, did not put it in the right place. It cost me $100.00 to have them put in (about 1 3/4 hours of labor). This should be a mandatory mod for anyone owning a 3rd gen. If you have any specific questions, feel free to PM or email me. Thomas

 

88iroc, what is the diameter on those sfc's. just wondering if I would have any problems bottoming out going into driveways like mine.

 

88aziroc-Those are the best looking SFC's I've seen yet. They look well made and conform to the contour of the floor board nicely. Do they hang down much? And can they be seen from the side of the car?

And, thanks for the clear pictures of the SFC's. I was temped to buy the ones from Spohn, but the pics on his web site aren't that good, and I haven't seen any SFC's in person. With these pics of yours you have pretty much made my mind up on what SFC's to buy.

 

dont spohns triangulate the frame tho

 

Yes the spohn's do have an extra brace on each side. But from looking at the pics of the Alston's it looks like they connect to the subframe stubs where the trans cross member hooks to. So the braces might not be needed. I'd like to hear Steve Sphon's take on this.

I'm looking for a set that tucks up as much as possible and give maximum ground clearence. Ideally I'd like a set that you couldn't see from the side of the car. I'm not sure if that's possible, but that's what I'm looking for.

88aziroc-Do you have a part number for the Alston sfc's? Their web site http://www.cachassisworks.com/ doesn't have many listings, and I don't want to have to buy a calalog and wait for it to get here to get info I need.

 

FYI, the S&W ones I have look a lot like those Alstons but they include a bar on each side that goes from the main SFC rail out to the pinch weld to tie the entire "frame" together with the body. Here is a pic of them laying on the ground:



They also have a crossmember that can be installed that goes from one SFC to the other that provides a place to mount their Torque Arm as well...... All together the system provides more chassis bracing than any other SFC setup I have seen.... They are bolt on but there is nothing saying you can't just weld these in after bolting them in or right from the start if you want them welded in.

They can be seen from the side of the car though - unless you have TA ground effects with those little plastic skirts, they are pretty hard to see with those on the car. You can still see the part of the bar that extends back under the rear subframe area that the LCA bolts to.

 

$350 bones tho, ouch!

 

I think they are some of the best out there. They dont hang down that much, maybe 1/2 to 3/4 of an inch at the most. You can just barely see them from the side of the car. They mostly look like part of the car. I will take and post some pics of the side of my car tomorrow if the weather allows.

I say go for the Alstons!!!

 

Sorry, but I dont have the numbers off hand. I bought the SFC's from a guy on the boards here. I forgot his screen name, but THANKS!!! You might want to PM Willie, he has Alstons on his car too, and he bought them from a company. Thomas

 

that's the wrong alston's. you're looking for http://www.alstonracing.com

 

these all look nice but i'm still buying Steve's in the spring, they either cost less, fit tighter ( no ground clearance loss), weigh less or look like they will make the car stiffer. Looks like you can add the S&W ones or the alstons on top of steve's if you reallywant to go nuts. I still think spohn's are the best compromise.

 

Ukraine Train-Guess that's why I couldn't find what I wanted.

Thanks for the info

Edit: I just went to the alston site and they list a set of 2" x 3" connectors for $89. Part number 102319. Is this the same set that 88aziroc has? His look like round tubing.

 

no problem. i've heard that you have to cut your floor pan for the $89 ones, 88aziroc has the $200 bolt in ones, he just welded them in