Chassis stiffening - clarifications please, chassis stiffening questions Options

[TAV]

Hi everyone

I'me very new to the 914 world. I've bought myself a 914 that I have yet to get back to Australia. It has no engine, but I do have a rebuilt 3.0 from a 911sc that will I'll be using for this project.

It'll be a weekend car and 2-3 track days (solo) per month.

I've done a fair bit of reading into the chassis stiffening options, but some of the threads/resources date back to early 2000's so not sure if there's been any advances in this?

From my reading the options seem to be:
1) cage - of various designs and contact points
2) longitudinals:
a) inner - eg Mad dog and I note Engman has been mentioned, but can't find a site for Engman
b) outer - restoration design and Brad Mayeur
3) GT chassis stiffening kits
4) Tangerine "rear pickup points reinforcing kit"

Am I missing anything?

During my reading, some people mentioned that the GT kit was ineffective, but I wasn't sure whether this was in relation to the all "GT" list or to one particular GT kit
Can anyone clarify this for me, please?

The Tangerine kit (to me) seems like a strengthening kit, but I wasn't sure if this also offered and increase in torsional rigidity?

I'm aiming to stiffen the chassis as much as I can for my purposes s mentioned above, whilst avoiding unnecessary weight increase.

Thanks in advance

[IronHillRestorations]

Just FYI, Mark Bland made the Engman products but unfortunately he passed away about six years ago (too young). Maddog has reproduced the inner stiffeners.

On my current project I've done inner stiffeners, with Resto-Design outer stiffeners, and the balance of the traditional GT stiffening plates, supplemented with custom plates on the inner/rear part of the longitudinals as well.

This car won't be a track car though, just a street hot rod. I personally am not a fan of a cage in a street car, but thats just me.