home made k frame

squidbob said
Question ,is there a way to make a k frame with r&p steering without using an expensive aftermarket one ?

Is there a way? Of course there is.

But if you want it to be something that actually drives and handles well and will last on the street by the time you've done everything you'll need to do to be successful you'll almost certainly be behind the "time is money" curve compared to the products already out there. There's a reason they cost what they do.

The R&P basically has to be front steer to fit, which means Ackerman has to be accounted for. You can use MII stuff like everyone else does, but there's still steering angles, roll center, camber curves etc to consider because using MII stuff with different suspension points changes all of it. And that's before you even get into where the chassis was designed to carry the suspension loads.

Super-Cuda said
A few of questions you need to ask yourself.

1. Do you know enough about suspension and steering geometry and the body structure engineering to attempt this?

2. Are you an experienced welder?

3. Are you willing to bet your life on the results?

Cheap is relative.

Exactly.

67Dart273 said
Engineering. Engineer. Math. Maff is hard.

Also realize this:

Just because someone manufactured one and markets the thing does not mean it is strong enough. Or that it has even been engineered mostly "at all." It also does not mean that a given product can put up with street use, jouncing, impact, cornering / side/ front/ rear braking, the bouncing of the tremendous force of an engine mass against it.

Exactly. There are products out there that won't hold up on the street, and even the widely used and established coil over conversions don't really address all of the chassis loading changes that occur with the conversion. How much chassis reinforcement is needed is a matter of opinion, clearly the major players have had their conversions on the market for a long time. But some of those cars are reinforced above and beyond the conversions, and many aren't driven all that much or competitively. So what should be done and what you can "get away with" are different things.