U1/2 book error?

[Eternal]

nice thanks guys. So handy having people who are doing the same thing. My only worry is where u1 and u2 join at the top. As my engine bay is stretched so tr1 and tr2 are at a different angle. oh well will soon find out lol tell you what can someone measure the distance between u1 and u2 at the top?

[HandyAndy]

Originally Posted by Eternal

can someone measure the distance between u1 and u2 at the top?

do you want the inner engine bay measurement or the outer measurement between TR1 & TR2?

i,ll pop into the garage now and get both measurements for you.

cheers
andy

[HandyAndy]

the measurement between TR1 & TR2 at the center line of where U1 & U2 meet the top rails on the inner face of the top rails is 640mm....
just add 50mm for the outer measurement .

hope this helps.

cheers
andy

[Eternal]

basicaly the length of the green line measured from the inside of u1 and u2. Sorry about this but its kinda important i get this right for the wishbones lol

[HandyAndy]

see my post above this picture

its no problem, ask for any help , thats what this forum is all about

cheers
andy

[Eternal]

Nice. thanks a load got the bits cut right now with the right distance between them. Only buggerance is the fact that they dont sit inside the chassis lol. Damn extended chassis! was really hoping i would get away with not messing with the suspension uprights. Any ideas?

[HandyAndy]

its difficult to comment as you are altering the dimensions but how about "fettling" U1 & U2 to make them fit correctly on the underside of TR1 & TR2,
then
make your suspension bracket jig as per the instruction in the book, place it into position on the chassis & you,ll then see how much "gap" is created by you altering the dimensions of the chassis, then maybe welding an additional section of box tube to the outer faces of U1 & U2 so that the suspension bracket jig meets the required positioning......just an idea

cheers
andy

[TQ_uk]

Not that I've started building yet, but also considering extending wheelbase so am following your build closely!

Can't you 'just' cut the uprights U1/U2 to fit, then modify the wishbone bracket postion(s) to match original spec/jig.

If you've extended the engine bay, and used standard front frame then won't the width between the side rails (TR1/2) be WIDER than book, thus U1/2 sitting inside the top rails (rather than outside as per your last pic?)

Also what affect do you imagine an increased wheelbase will have on steering geometry (ackerman etc) or will it be minimal & enough to ignore?


EDIT: Doh! Just beaten to it by Andy

[Eternal]

green is original area.

Its hard to explane... yes you could change just the firewall forward but then the Top rail tr1/tr2 would not match the same angle as BR3 and BR4 so what i did was bring out br3/4 to the same angle that tr1 would be. this gave me a little bit more space in BR10. best way i can explane the way it sticks out is by getting

this kinda shows you why its out more. red shows original, blue shows my one green shows the length of U1/2 and why its sticking out.


It now sticks out 7mm lol, ok i have a idea i can do a front frame type thing and take a wedge out sould not be too hard to work out

[Eternal]

and as if my magic problem solved! wooo.


Thanks for the help lads