Sports sedan regs regarding modification of floorpan cars

[MK2 Sedan]

Hi guys, thought I'd ask you blokes in case someone knows the answer.
I've looked at the regs on the CAMS handbook site and I can't see anything specifically related to this.
I want to know if it is within the scope of the rules to cut into the firewall of a "floorpan based sports sedan" for the purpose of moving an engine back, or accomodating an engine that wasnt originally meant to go in there.

Anyone got any thoughts/interpretations/answers?

Thanks
John

[Htc Motorsport]

Not quite sure but i think you can do whatever you like..isnt it just 4WD floor pan cars that you cannot modify...???

[FAMOUS]

John contact me have a question for you about Japanese stuff.

Famous MX5 No.5 QR

[T50]

Yes John, you can do that. Remember you'll need to fit an adequate scatter shield around the bell housing/flywheel area once the engine is further rear than standard. Be a 2jz will it?
Laurie D