Well some of u know i have an 84'bird, ive been hearing that sfc's should be 1 of the first investments. r these really nessecary? im not doing any racing with the car. will these improve the steering and suspension? plz let me know ur opinion on these sfc's.

 

OMG trigger how many new treads are you gonna do you ask alot of questions

 

i need to know if there neccesery becuz it might be my next investment.

 

Well if you plan on putting any power in it at all you shoudl do it, the fact that the frame is not one peice makes alot of things go wrong. I have a friend you flexed his car so much (4th gen TA) he cracked his windshield. You will stay better in corners as well. Your car wont roll as much.

 

I recently had Spohn SFCs installed on my 84 bird, and noticed an immediate difference. The creaking when going over a really lousy bumpy road was significantly reduced. Before I would feel like the car was flexing with the road and now it's just the suspension that travels. I still hear some creaking and flexing up front from the front frame rails at times, so I plan to do a 3 point strut tower brace in the future.

 

i say even a stock car needs them. these cars are like wet noodles without them. you'll notice an immediate improvement in all types of handling, the creaks will go away, and dash rattle should be minimized, if not completely gone.

 

hit the key. You'll find more info that way than anyone will post. Always search first, then post if your question is still un-answered.

- YES! I've seen V6 cars that cracked the b-pillar due to chassis flex. They're not a mod, they're a necessity.

 

thanx 4 the help guys, i think im going to invest into getting the sfc.

 

i have 1 more ?, since i dont have acess to a welder, could i just get away with bolting the sfc on instead of welding it?

 

No, find a local shop that will weld them in for you. Most muffler places will do it. Expect to pay $75-150. You may want to pull your sills out and roll the carpet back from the doors before you have it done though-or remind the shop to. The heat from welding can burn the carpet.

I agree with MW, even a stock car needs them.

 

thanx.

 

Do the bolt ons really flex that much more then the weld in ones?


Thanks,

 

yes. my 350 that i'm taking out due to a cracked waterjacket makes about 450ftlbs. the flex from not having mine welded in was making the hatch rub against the rear quarter. it rubbed so badly that the paint is flaking off. welding them in was the best thing i ever did.

 

if you buy bolt in ones have them welded to thats what i did with mine

 

Why spend the extra money for bolt in ones if you are planning on welding them. Just get the weld on ones and weld them on.

 

would the car flex if i bolt them in, its only a 2.8 and i wont be drag racing it?

 

with a 2.8, you'd be fine with them bolted in. but if you ever decide to put some more power to the chassis, you may want to think about having them welded in.

 

cool, becuz i really dont want to pull up the carpet but i want to get the sfc to stiffen up the frame. thanx 4 all the help guys.

 

I don't think that's very sound advice. The engine isn't the only thing that acts upon the chassis when driving. Sharp turns, emergency braking, and other manuvers like that can stress the chassis just like the torque from an engine. Eventually the bolts holes will elongate and render the SFCs useless. It may take a bit longer since the power isn't there, but it will eventually happen.

I would go with welded SFCs and never worry about it again.

 

yeah it would prob. be better to have it welded in. ill keep it in mind.

 

 

you'll have to pull up the carpet to bolt in the bolt-ins cause the bolts go through the floor.

i ran the bolt-in's for 3 years before i started having problems. they had been on 3 cars before i finally welded them in to the current car. only reason was cause i started twisting the car when i finally got more power to the ground. but again, my car is built for straightline performance, and the car is not put through emergency braking and fast, hard cornering.

i suppose if that is the kinda stuff you do with the car, then yes, weld-in's only

 

well then ill probaly have them welded in. if u have to pull up the carpet either way, might as go with the weld ons. gives me an excuse to rustproof the floor.