Gearhead559

built this for a friend.

i took comp eng, frame tie for there formed rear rails and made them work with the stock frame rails.

i cut angle in the frame ties and plotted them out to fit in the stock rear rails.


rear section is inside the stock rails, and braced with plates in the floor area!



driver side


passenger


pic of the floor bracing

Gearhead559

this being a t-top car i made the main hoop fit in the roof rail to futher stiffen the chassis.


of course the base of the cage is on plate welded to the flooring and body rails.




added plate buy the rear shocks.


to plant the rear down bars too


added plates to the front floors after repairing one side
and put the door bars right on them


for added room i put small bends in the door bars to clear the arm rest's



added the cross bar and the seat brace's

Gearhead559

made some seat brackets to fit the driver
driver


passenger

after putting the main hoop braces in and welding it pu soild i painted it all black



made a custom bracket in the spare tire area to mount the battery

put the cut off in the rear tail panel



all the stock plastics fit great!

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and it sit's mostly out of site!




now im looking for some info on mini tubbing these cars! anyone have good pics of this being done?i may be doing this one, and another one for sure for a friend!

AlkyIROC

Your battery is not track legal. It needs to be inside a sealed box.

Gearhead559

its legal when theres a firewall built in the rear hatch area! to contain the fuel cell.

customblackbird

iTrader: (15)

im going to be installing a 8pt competition engineering roll cage in my 87 formula 350... looks like u did that right from wat ive seen. only diff im gona do is the front bars im going to have them bent 90 degrees at the end so i can weld the bar maybe 6" off the ground and to the main hoop so i can have maximum clearance since it will be my daily driver and i dont want getting in and out tobe a problem or a pain.

my quesiton is the frame support that u did with the comp engineering subframes... i got the same subframs and installed them through the floor but in a straight line from the front to the rear stock subframes. idk why u cut and welded it into that bend... doesnt seem like it helped in anyway. the welds and cut and welded bends would make it weaker than a straight bar.

wat welder did u use? and argon/C02 75/25%?

AlkyIROC

I don't see a firewall in any of those pictures so until a firewall is added, it's not track legal. Your firewall will have to seal to the outer fender, not just to the plastic cover to isolate the battery from the rest of the driver's interior.

Gearhead559

so does that mean its not there now? i mean did you even see the dates on the pics? the rear firewall was on him.
and to be honest, i dont see the fuel cell he is running now.
he wants me to mini tubb it now, and fox body's are cake, but the info on doing them is all over the net. so until the wheel tubbs and rear frame work is done theres no sense in it. and this car has been to the track and they said nothing to him about it even tho he has some make shift setup in it now

Gearhead559

the very rear of the rails are inside the factory rails. and once it come back for the mini tubb then ill be adding some more bracing to the front. but with the flooring and everything else welded to it, the car is soild. t-tops dont rattle no more, he said its a rather stiff! and i dont see how you ran them straight thru, when the frame rails dont even come close to lining up where you could lay them straight.
snap on mm140, 75/25