S4 chassis

rcracer · #1 04-02-2008

The back end of my chassis seem to be wearing down

i believe its a older version and by the looks of it when it gets a bit more hammer on a outdoor track i could be having problems with the two screws right at the rear, is there any way i could repair it with resin for instance bring the thickness back up again then file and redrill for the srews

as i imagine a new chassis will sting me a fair bit....will post some pics of the problem later..

Neil...

OldTimer · #2 04-02-2008

You can drill some extra holes, you will notice on the rear suspension mount there are two inner holes as well as the current two outer holes used to hold the mount

If you use these as well, it will a lot of life to the chassis

Northy · #3 04-02-2008

Maybe make a thin sacrifical skid plate too out of thin CF or ali?

Southwell · #4 04-02-2008

Those protective chassis sheets might be an idea.

rcracer · #5 04-02-2008

Heres the pics

rcracer · #6 04-02-2008

Quote:

Originally Posted by OldTimer

You can drill some extra holes, you will notice on the rear suspension mount there are two inner holes as well as the current two outer holes used to hold the mount

If you use these as well, it will a lot of life to the chassis

looks like it already been done Johnathan

Quote:

Originally Posted by Northy

Maybe make a thin sacrifical skid plate too out of thin CF or ali?

yeah skid plate could be a option

footey · #7 04-02-2008

ouch m8 that looks nasty

OldTimer · #8 04-02-2008

The rear of the chassis was changed on later cars, looks like that was one of the very early chassis you have there.

rcracer · #9 04-02-2008

Can you buy a chassis on its own and how much are they

OldTimer · #10 04-02-2008

Yes you can just have the chassis, drop me a PM and i can sort out something for you

Thomas P · #11 04-02-2008

Quote:

Originally Posted by OldTimer

The rear of the chassis was changed on later cars, looks like that was one of the very early chassis you have there.

Is that the same for my BJ4WE - S4 car Jonathan? i bought my converison from you Aug. 23, 2007. f i have a oldie, can my chassi be replaced? and what is th price (my is still like new, not a single scatch,il use jConcept 3M cheet)

OldTimer · #12 04-02-2008

Thomas you have the newer version, if you check it you will see that it is around 3mm thick at the back, and does not curve upwards like rcracers chassis in the photo.

Also looks like the chassis in the photos has been moddied, as there is a extra piece between the chassis and the blue suspension mount.

Thomas P · #13 04-02-2008

Yep, did see that now Mr J

rcracer · #14 04-02-2008

OMG what a differance to mine

Body Paint · #15 04-02-2008

Quote:

Originally Posted by rcracer

Heres the pics

Dude.. that plate is seriously messing with your anti squat. Or maybe its the angle of the photo, but, It actually looks like you have pro squat... NASTY!!!

I'd strongly advise you replace the chassis and get shot of that plate. Either that or as a desperate measure put a similar thickness plate under the front bar, whilst not ideal, as you will raise the roll centre considerably. This option is far more preferable than pro squat though.

Another little tip, I used titanium screws in the back of my S4, they seem to wear less than steel ones and so protect that rear lip better.

ben · #16 04-02-2008

Im not sure how well this is going to work but the same thing happened to my chassis on my old car. But i kept the chassis dunno why. And my dad has just put some sort of resin on the back of the chassis. So i will update ya with how it goes

. Might be a cheaper repair

ben

rcracer · #17 05-02-2008

Quote:

Originally Posted by Body Paint

Dude.. that plate is seriously messing with your anti squat. Or maybe its the angle of the photo, but, It actually looks like you have pro squat... NASTY!!!

I'd strongly advise you replace the chassis and get shot of that plate. Either that or as a desperate measure put a similar thickness plate under the front bar, whilst not ideal, as you will raise the roll centre considerably. This option is far more preferable than pro squat though.

Another little tip, I used titanium screws in the back of my S4, they seem to wear less than steel ones and so protect that rear lip better.

Hi Craig

the little plate was already on it when i got the car , i'm going to find one that fits in the recess to stop the chassis bending in a arc as it is now but you are are right a new chassis is on the cards sooner rather than later as it needs to be sorted for belgium

Neil