Sometimes unsolicited opinions are offered in an attempt at preventing ,what the opinion giver perceives , as a major fuck up ,no harm , no foul . I really dont take things too seriously...
you may have scrub line issues... if you get a flat tire, you're gonna skid. I'm not judging, I just want to make sure you're aware. For your safety.
Omar .... I built my Coupe's chassis at 4"- 4-1/2" of ground clearance and also built my own design ladder style bar, which mounts to the inside of the main chassis rails, and are parallel to the ground. I designed everything to be above the frame rail, so nothing would scrape. Works great and rides good and handles like a go-kart. I dug up a picture of it if your interested.
At the risk of getting slapped, I am going to have to point out your scrub line issues again. Looks like the frame will drag on the road if you get a flat. Very dangerous..............just trying to help. Otherwise, extremely cool...
Hey Mate , forget all this "scrub line" Bull***t. All you have really done is increased squat by lowering the front pivot point. [but you also have lowered the CGH] No matter what shape your bar is [eg: "J" bars to go around something] it is actually an "imaginary" line between 2 points. one point is Axle centreline , and the other is the front pivot point. So forward thrust [from the axle centreline] will try to push the front pivot point downwards resulting in squat. Squat can be overcome with stiffer suspension. On a really low car be careful about adding too much "anti-squat" [raising the front pivot] If the front pivot is higher than the CGH it can cause "jacking" in the rear when accelerating . Build your car, make everything fit without interference and binding .....Then tune it with spring stiffness. In Road Racing we never even discuss "scrub line" [and our cars are really low]. All the sanctioning bodies require is the ability to tow the car off the track with 4 flat tyres [not scraping the ground] So just make sure your car isn't lower than the bottom edge of the rims
With what your trying to do and do it to such a low frame height it might be easier and better to run a short 4-link set up. Then you could move the bars close to the frame rails and when building floor pans build around the rails and bars at the same time while also giving you more and better options at suspension geometry.
In the immortal words of Yoda "Building a car that lays frame, you are?, "traditional", you are not".
The ladder bars angled down like that are going to create squat under acceleration. As mentioned you could try to control that with stiffer springs. It's a light car so that may not be so bad. What would worry me more is the inverse, the rear is going to lift under deceleration. You could try to control that by adding rebound to the rear shocks. Here again it's a light car so the rear tires unloading on decel could be very bad. It's hard for me to visualize without actually standing there looking at it but I keep coming back to triangulated four link.
I thought about 4 link and almost went for. Instead I used a straight crossmember so it leveled the ladder bars. But now they go into the flooring. But since the car will be low I had to bring the engine up higher and the the tranny adapter plate comes down lower also. So I have to build the floor up higher anyway.
I was gonna remain silent but... Ladder bars don't cause squat when down. Axles rotate against the direction of roatation under load, light or heavy loads. Yes, scrub lines should be considered. Dependent upon intended use and ground clearance demands, locate as desired. Weight doesn't transfer, load does. Open to discuss in keeping with the "...helps others..." from the OP. I don't dislike the car totally but it's not built for me. We can discuss that if I ever ask you to build me one. So far so good from what I see. The basics never fail.
Agreed, lots of low cars. Almost like the antithesist of the hiboy. The only tech advice I could add is that the desired ride hgt should be achieved "loaded." Pretty sure we all consider that, just shop talk...
The "reverse stance", i.e. having the rear of the frame rails sitting lower than the front, just doesn't work aesthetically. Having a lowered hot rod is one thing, having the ass end sag is another.
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