subframe boxsection sizes

[dazz90]

hi can anyone help on sizes of box section i was going to use 25x25x 3mm just to keep things simple but have seen many frames 30 x30 can any one help many thanks

[Birdman]

hi can anyone help on sizes of box section i was going to use 25x25x 3mm just to keep things simple but have seen many frames 30 x30 can any one help many thanks

I think it is entirely up to you really. I used mainly 40 x 40 4mm wall thickness, but that's for a frame that has none of the original mini subframe. Some small parts are 30 x 30mm.

[M J W J]

Someone recommended 30 by 30 to me with 3 mm wall thickness. This is what I have build my frame from. Shall be mounting engine sometime next week.

[Kam]

Some more info

http://www.16vminiclub.com/forums/showthread.php?t=25744&highlight=allspeed