7 replies to this topic

[nev100]

Dear all.

I'm in the process of fitting a Weber box in the front bulkhead.

Firstly, can it just be plug welded in or does it require seam welding all round ?

I'm thinking plug welding would be sufficient from a structural point of view but would engine fumes get inside of the car ?

Secondly, what's people's thoughts on position in the bulkhead ?

I realise it should be off centre to fit correctly around the inlets but it would then be off centre from inside the car.
As I want to go for a minimalist race car theme I think I'll put it centrally in the bulkhead.

Thanks in advance.

[nicklouse]

the offset is about 2" but as you want 2-3 " all around the carb and trumpets you hardly will notice it being offset. and seam weld it.

[nev100]

Many thanks Nicklouse. Much appreciated.

Knew you fellas could help me out.

[Bat]

Hi,

Plug weld then run some seam sealer round and paint. Sorted

I actually used a battery box repair panel but you have to adjust the angle of the flange to get it to fit in at the right angle.

I also ran a pipe from the N/S fresh air vent into the box to provide a cooler air feed.

Cheers

Edited by Bat, 11 June 2018 - 11:22 AM.

[nev100]

Thanks Bat

[Retroman]

Not sure if you have started welding yet but Nick is correct that it should be seam welded in

 

A diligent MOT man my fail it as its near to the master cylinders, and as such structural.

 

When I do them with a box section dash rail I weld them to that too, trianglulation....adds a lot of strength

 

Strong enough the go on a spit - hence the hole in the middle (covered with an alloy plate and sealed)

 

Also make sure it slopes towards the front slightly and the offset from centre is 35-40mm

 

The two photos are the same car

 

[gazza01]

I riveted mine in place. tacked it in several places, then ran some seam sealer so it looked like weld. once painted it's been OK for MOT's for the last four years

[nev100]

Thanks Retroman and Gazza.

I've got the hole cut out (off centre) but then realised that I wouldn't be able to use my spit afterwards.

So it won't be welded in for the time being but I'll seam weld it in when I do.

Thanks again.
All help, advice much appreciated.