Chassis fabrication and suspension

[profi]

wow it couldn't of hit me in the face any more clearly, i know the car you are building.

You should be starting the chassis not messing around on the forum!

[loser]

wow it couldn't of hit me in the face any more clearly, i know the car you are building.

You should be starting the chassis not messing around on the forum!

Profi, what drugs are you on??? You are the last person in the world who has the right to say that. Get off your arse, stop pissing around on the computer trying to find out what everyone else is doing and get that car of yours going that's been in the shed ever since i've know you...

[Abuilder]

John (Httc Motorsport) you are dead on with your comment, drag racing suspension has it’s own science and should not be compared to circuit racing 4 bar suspension. This is what I was trying to say all along, they are two totally different things.


4 link

4bar

And John on your second thing, no I am not John Cannon.


Jd yort, Thanks for the welcome. Your right It will work to some extent I never said it wouldn’t it just wont work 100% and my business philosophy is that the customer pays for something to work right not to just work to some extent.

How it should look

Toyzda, if you thought there were too many holes in the other chassis brackets, have a look at this one. It is classed as a new extreme 4 link and it is adjustable in 1/8 inch increments.

[Toyzda]

Wow, that is getting into seriously fine adjustments. As you say, it would be totally wasteful on a track car.
A gather that kind of setup would be for a 6sec and under car yeah? Wouldn't that be too many adjustments unless you understood the "science". Seems you could get that setup quite wrong very easily.

On the "4 bar" setup in the picture you will notice the adjusment holes only give anti-squat and that is it. All you need to change on the track once you have tuned the roll steer out with the rod ends. On all the other "4-links" the adjustment holes let you get more or less squat, no anti-squat at all. That is why I stated there were too many holes for a track car. Squat is evil in a track car, but I am sure you know that.

Good job on clarifying the difference between drag and track setups.

[FalconEL]

Toyzda, if you thought there were too many holes in the other chassis brackets, have a look at this one. It is classed as a new extreme 4 link and it is adjustable in 1/8 inch increments.

Anyone got a block of cheese they need shredded?? B)

[profi]

There are new systems that are slide adjustable instead of hole adjustable, quiet complex but it's out there.

[sdo010]

we cant really compare apples to oranges...........................

a drag car has to hook up.....and if a 4-link is well designed (long links, adjustable rear instantaneous center height), then it is very tuneable......

a circuit race car - must go around corners - so roll center height, and axle skew are important...............rear wheel travel is often severly limited......so "bind" aint an issue.....skew still is thou..........

rgds

simon

[Abuilder]

we cant really compare apples to oranges...........................

a drag car has to hook up.....and if a 4-link is well designed (long links, adjustable rear instantaneous center height), then it is very tuneable......

a circuit race car - must go around corners - so roll center height, and axle skew are important...............rear wheel travel is often severly limited......so "bind" aint an issue.....skew still is thou..........

rgds

simon

That’s what I have bean saying all along!