Bostonian 71 demon

-
No real progress on the car the last couple days been sick, but I did manage to paint and cure the blow sheild while taking it easy at home

IMG_3580.jpeg
 
I understand you are trying to recreate an appearance of a certain era, but there are some things on your cage I would have modified for a safer and more robust design.

One area is the rear strut tubes. I would have tied them in closer to the bend on the main hoop to tie in with the halo and angled them at a 45* to create more stable triangulation.

The engine bay tubes intersecting the joining interior tube in the middle of a long run with no other triangulation to support them is also concerning. I would have mounted them up higher to intersect with the bend in the front tube and then tied in a dash bar across the width of the cage and an additional door bar to X the uprights together.

I know NHRA doesn't specifically call out these as requirements in advanced E.T. categories, but these items are pretty standard features built into most cages these days. These design details are called out by other, non-drag race sanctioning bodies as a standard design principle. Not sure an NHRA inspector would call you out on them but it would really suck to get one telling you to change these after construction is complete. You might consider sharing a picture with an inspector before you finish just to get their take on it.
 
HPP said:
I understand you are trying to recreate an appearance of a certain era, but there are some things on your cage I would have modified for a safer and more robust design.

One area is the rear strut tubes. I would have tied them in closer to the bend on the main hoop to tie in with the halo and angled them at a 45* to create more stable triangulation.

The engine bay tubes intersecting the joining interior tube in the middle of a long run with no other triangulation to support them is also concerning. I would have mounted them up higher to intersect with the bend in the front tube and then tied in a dash bar across the width of the cage and an additional door bar to X the uprights together.

I know NHRA doesn't specifically call out these as requirements in advanced E.T. categories, but these items are pretty standard features built into most cages these days. These design details are called out by other, non-drag race sanctioning bodies as a standard design principle. Not sure an NHRA inspector would call you out on them but it would really suck to get one telling you to change these after construction is complete. You might consider sharing a picture with an inspector before you finish just to get their take on it.
Click to expand...
So the rear half of the cage is completely being redone the front I still have to put the triangulation bars upward to the strut supports, but I’m not doing those until the dashboard is back in temporarily to figure out my exact spacing
 
B.R.E.Demon said:
So the rear half of the cage is completely being redone the front I still have to put the triangulation bars upward to the strut supports, but I’m not doing those until the dashboard is back in temporarily to figure out my exact spacing
Click to expand...

Gotcha, that makes sense.
 
Now that being sick is done (thank god) im back after the car fresh floor pan is in bound driving some point next week. Tonight the plan is to go to town on the rear taillight panel valance with a spot weld cuter and get that prepped to the cross bar. Also my buddy sent me a set of these vintage spark plug wire labels from the day.

Image.jpeg


IMG_3601.jpeg
 
The four-speed is back from Liberty Gears , fully refreshed and ready to handle the power of a Pro Stock Hemi. The internals have been gone through, a couple of new gears to replace the old ones, and fresh faceplating with all the tricks to ensure durability. Unfortunately, I couldn’t use the original magnesium case due to a crack (likely why it was never used), a guy from Pa bought it quick but this build features a NOS Direct Connection aluminum case that's been bushed with the magnesium A-body tail shaft. The shifter will run in an H-pattern, so it should make for a fun and nostalgic driving experience. Time to channel my inner “Mr. 4-Speed” or Ronnie Sox! Plus got a lead on a dream car hauler to chase down.

IMG_3624.jpeg


IMG_3625.jpeg


IMG_3626.jpeg


IMG_3622.jpeg


IMG_3627.jpeg
 
B.R.E.Demon said:
The four-speed is back from Liberty Gears , fully refreshed and ready to handle the power of a Pro Stock Hemi. The internals have been gone through, a couple of new gears to replace the old ones, and fresh faceplating with all the tricks to ensure durability. Unfortunately, I couldn’t use the original magnesium case due to a crack (likely why it was never used), a guy from Pa bought it quick but this build features a NOS Direct Connection aluminum case that's been bushed with the magnesium A-body tail shaft. The shifter will run in an H-pattern, so it should make for a fun and nostalgic driving experience. Time to channel my inner “Mr. 4-Speed” or Ronnie Sox! Plus got a lead on a dream car hauler to chase down.

View attachment 1716350088

View attachment 1716350089

View attachment 1716350090

View attachment 1716350091

View attachment 1716350092
Click to expand...
Awesome, that makes me want a 4 speed again lol.
 
B.R.E.Demon said:
The four-speed is back from Liberty Gears , fully refreshed and ready to handle the power of a Pro Stock Hemi. The internals have been gone through, a couple of new gears to replace the old ones, and fresh faceplating with all the tricks to ensure durability. Unfortunately, I couldn’t use the original magnesium case due to a crack (likely why it was never used), a guy from Pa bought it quick but this build features a NOS Direct Connection aluminum case that's been bushed with the magnesium A-body tail shaft. The shifter will run in an H-pattern, so it should make for a fun and nostalgic driving experience. Time to channel my inner “Mr. 4-Speed” or Ronnie Sox! Plus got a lead on a dream car hauler to chase down.

View attachment 1716350088

View attachment 1716350089

View attachment 1716350090

View attachment 1716350091

View attachment 1716350092
Click to expand...


That thing is crying for a Ram Rod shifter!!
 
You must log in or register to reply here.
-

Back
Top