Helmet to if roll cage clearance?

[Erich Stahler]

Having problems getting my seat low enough with helmet on level with top of cage, how much clearance do you have?

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[Rudernst]

the rules demand 5 cms or approximatly 2 inches

we usually add half an inch for peace of mind

my advice
if the hoop is not high enough
build a tough higher one
you can only compromise your seating so much to get under the hoop

in the end, its your neck
personally; i value my neck A LOT

RE

[Erich Stahler]

Originally Posted by Rudernst

the rules demand 5 cms or approximatly 2 inches

we usually add half an inch for peace of mind

my advice
if the hoop is not high enough
build a tough higher one
you can only compromise your seating so much to get under the hoop

in the end, its your neck
personally; i value my neck A LOT

RE

Its a professionally made integral roll cage that fits exactly within the confines of the body work so extending it upwards is not an option, so its down thought the floor I must go, i.e. cut a hole though the GRP floor and sit seat on steel supporting straps, if still no cigar will have to remake the straps lower down! Real pain in the posterior, but better that a severe pain in the neck I guess!

[terence]

Too right it is!!! I would seriously not go lower.Can you not get a made to measure hoop done?What would happen if you got forced off over a high kerb.?? That could certainly make your eyes water,at best.

[zefarelly]

can one not recline a little ? I had this issue in the Tornado, but a change of seat made a world of difference.

[Rudernst]

I assumed single seaters...
when I read ROP

there, as a rule, the sky is the limit to roll hoop height


different in touring cars, of course

RE

[Erich Stahler]

These pictures might give a better idea of the restricted space I have to play with.

[Erich Stahler]

[terence]

As someone has suggested,cant you find some more space under the seat-different drillings to standard in the mounts.?

[Erich Stahler]

Originally Posted by terence

As someone has suggested,cant you find some more space under the seat-different drillings to standard in the mounts.?

Thats what im doing, im lowering the floor and tilting the seat backwards slightly.

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[terence]

I thought you were originally talking about a single seter Eric.Had a similar problem with a Griffith.Ended up cutting the floor out were the seat mounts,welded two two inch wide straps to the chassis at desired depth and then glassed over it.No way would the seat move from its new mountingg points.