car floor

hello…
I have a old 89 240sx. and I put a s15 engie inside. Iam worring about that my car g0t lot of stain on my car floor.when I put that much power to the old car and when I drive too fast? will the car floor borken?? can I do something about it to make the car floor more stronger?? or as my ccar get too old even my car’s body getting weak. can I do something about it as well??
and the answer is yes what kind of body shop I should take it to??
thank you

wow i just dont know what to say here :shock: you put in an S15 SR? you meaning… some shop ? huge difference, and youre worried about the floor? why? is it rotted to hell ? totally full of rust? yes then the body shop (any shop) would have to cut it out and place a new floor in…
As for worrying about the floor “breaking” heheeh yeah i dont think so !! people are running over 500hp with no floor modifications !! LOL

IF its rotted fix it, if not, leave it alone.

…god you would have been an easy flame, youre lucky im in a good mood !!