toyz

Hi all, First off I will say that I'm new here and I feel this is an awesome source of information, thank you. A friend of mine has a 1972 240Z and it's sitting with the primer on it right now. He's been putting a lot of work into it lately (lots of body work) and we discuss color and design a bit. I've been slightly educated on foilers and spoilers and their real purposes other than just looks on cars. I'm wondering that if you put a hopped up fast engine into it like we've got in the works...at what point should you put a tail fin on it, and how big/small should it be and how effective will it be? Is it the fact that the bigger the fin, ie. porsche whale tail, drags more air to push the back end of the car down therefore keeping that light arse end more stable? How do the differnt styles of fins perform different? How does this work please, I need a little enlightenment. I had an 82 mustang gt when I was 16 and it had the wrap around type fin over the hatch. It was small but I assume the it served it's purpose as far as keeping the back end of the car down some to not tail swish. I feel that look is ok with the 240Z but I'm wondering about how much it is needed. I'm thinking effectiveness of overall performance for both speed with handling and keeping the car street legal looking and close to stock as possible. Thanks a ton for any help, I may be back frequently about multiple 240Z Q's