Longer range fuel tank(s)

[baz-r]

Originally Posted by HandyAndy

When fitting a GRP rear tub, the only parts from the original "Book Plans" that are removed are RP1, RP2 & RP3,s, (basically the round tube framework),

The parts D13,s are still used, tho are a slightly different dimension that then are attached to a 99cm length of 25mm box tube(known as GRP1) from the original mounting position on the diff cage,there are also 2 new lengths of 25mm box tube (known as GRP2,s,) welded into position from RS14 to the new GRP1 part,
so the strength is still there as per original "Book Spec", just without the round tubes that would normally support the Ali tub, as the GRP tub is "in a way" self supporting & attached to the chassis along the base of GRP1 & to D11,s & D9,D10.

cheers
andy

my plan is to make a longer tank ditch d13 (i think thats the name of the bottom 19mm tube from diff cage to lower round tube) use grp frame to hold the tank and still fit a metal back end there was only two little strips of metal there witch now have been replaced buy a nice box frame to hold the uprated tank.
there are other ways to put d13 strength back in but as its all tied into the roll bar anyway i dont think theres much to worry about.