SN95 How crazy have you gotten cutting sheet metal out of your sn95?

[johnjamesmiller]

How crazy have you gotten trying to save weight on your track car? Pictures?

Im looking to cut some weight from my sn95 track car. Already have all the interior stripped and full cage. Still need to cut the structure out of the doors and deck lid.

Can i cut out that rear shelf where the speakers used to be without sacrificing chassis rigidity? How about the inner structure below the littler rear triangle windows?

 

[Frank.JD.Perez]

yes you can cut out most of that

 

[johnjamesmiller]

Any thoughts on measuring chassis rigidity, or strength, or whatever I am giving up as I cut out structure? I am thinking it might be fun to provide some data for others as I go down this route. If I do some static test like support 3 wheels and measure the sag down at a chassis point near the unsupported wheel would that be a good indication?

looking at cutting out these areas in red to be specific.

 

[GimpyHSHS]

Check out Guerrilla Motorsports on Facebook. He's going about as far as you can lol.

You said full cage, but are you planning to add down bars to the rear shock tower area? Are you allowed to? I think that would solve any question about this area.

There's a long thread on C-C that discusses cage design and might be applicable if you can do it.

 

[Frank.JD.Perez]

oh hey, that picture looks familiar

 

[Frank.JD.Perez]

the part where the speakers sit i cut out, as for the access area to the quarter vents that can be cut out if youve got a cage in. the cage starts to take more of the structural rigidity job

 

[johnjamesmiller]

Always blown away by the response of this group. Thank you!!

crazy how far guerrilla has taken it. Dont think i will take it that far!


My cage has down bars from main hoop to the shock towers.



probably worth adding bar between shock towers. Possibly complete the bottom of the triangle from shock tower to bottom of main hoop. Possibly large x between down bars and main hoop. Possibly bracing main hoop to existing body. Just want to make sure i dont add more weight then i reduce! Im guessing my rear could be stiffened up as the car pushes - dont have problems with rear coming around yet.

 

[302BOB]

If you can see the road, underneath you while you're driving, you might have gone a bit too far with trimming that sheet metal..............Aero may suffer also...............

 

[GimpyHSHS]

Always blown away by the response of this group. Thank you!!

crazy how far guerrilla has taken it. Dont think i will take it that far!
View attachment 70229

My cage has down bars from main hoop to the shock towers.

View attachment 70230View attachment 70231View attachment 70232

probably worth adding bar between shock towers. Possibly complete the bottom of the triangle from shock tower to bottom of main hoop. Possibly large x between down bars and main hoop. Possibly bracing main hoop to existing body. Just want to make sure i dont add more weight then i reduce! Im guessing my rear could be stiffened up as the car pushes - dont have problems with rear coming around yet.

Ahhh ok, I saw in the post that you said it had a full cage, but didn't put 2+2 together that that picture in the post wasn't your car. So I was a bit confused there and figured, "Hey maybe a full cage means different things to different people."

Probably should've peeped your profile again, but that's why I made that suggestion. I promis I reed gud!