V8 Gobbler #511 (Extended Track, LSX powered)

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V8_Gobbler

Member
Desert Sasqwatch said:
Impressive work with the exhaust headers. Will be interesting to hear what this exhaust will sound like. I've only heard in-person one other 8 into 1 exhaust before and it was epic to say the least.

Is that the transaxle that will be used? It does extend quite far behind the axle centerline and the rear of the frame would require a like extension. Curious to see how it ends up configured along with the subframe (if you end up using one).
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Thank you, it took quite a bit of time to fabricate all of it. Was also my first time tig welding! Yes that is the transaxle that will be used. It will definitely stick out beyond the factory df goblin frame. But I will be making a custom subframe to hold it all and some sort of rear bars to wrap around the back of the trans for protection and double as a frame strengthener.
 
Desert Sasqwatch

Desert Sasqwatch

Bigfoot Goblin
Joe, you've already explained the extensive frame mods needed to accommodate your drivetrain. I would recommend strengthening the rest of the frame from the B-pillar forward, especially in front of the A-pillar. The 'open top box' above the footwell can allow for torsional twist that needs help to be stiffer. Take look at my build log - the last 8ish pages - to see how I reinforced my frame. Ask me any questions, I'll be glad to provide specs, dimensions, etc.
 
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V8_Gobbler

Member
Desert Sasqwatch said:
Joe, you've already explained the extensive frame mods needed to accommodate your drivetrain. I would recommend strengthening the rest of the frame from the B-pillar forward, especially in front of the A-pillar. The 'open top box' above the footwell can allow for torsional twist that needs help to be stiffer. Take look at my build log - the last 8ish pages - to see how I reinforced my frame. Ask me any questions, I'll be glad to provide specs, dimensions, etc.
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Awesome, I will check that out!
 
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V8_Gobbler

Member
I have started fitting my ls motor to the chassis. Eyeballing some things and checking clearances. It fits very well and I think I have found it's resting location while i fabricate a subframe. I had to cut out the upper cross bar and the factory drivers side trans mount so far. I have also assembled the front A arms.20241002_161411.jpg20241002_161644.jpg20241002_161705.jpg20241002_162245.jpg20241002_202532.jpg20241002_202538.jpg
 
Desert Sasqwatch

Desert Sasqwatch

Bigfoot Goblin
Taking the grinder to your frame right out of the delivery truck, brings a tear of joy to my eye! ;) I'm curious to see what you come up with for the rear suspension? Keep the photos coming! :D
 
Desert Sasqwatch

Desert Sasqwatch

Bigfoot Goblin
Just checking, is the ride height going to work out with the LCA mounts under the subframe? I understand the geometry using the Corvette arms will be unique for your custom installation, but I'm working on a custom UCA/LCA rear suspension of my own for a TC/F40 drivetrain and found the LCA had to be mounted next to the subframe rails. I'm sure you've already worked this out, just curious if this will introduce extra rake in the chassis?

BTW, your doing amazing work and your subframe is coming together nicely. Keep posting progress - your V8 monster will be a one of a kind!
 
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V8_Gobbler

Member
Desert Sasqwatch said:
Just checking, is the ride height going to work out with the LCA mounts under the subframe? I understand the geometry using the Corvette arms will be unique for your custom installation, but I'm working on a custom UCA/LCA rear suspension of my own for a TC/F40 drivetrain and found the LCA had to be mounted next to the subframe rails. I'm sure you've already worked this out, just curious if this will introduce extra rake in the chassis?

BTW, your doing amazing work and your subframe is coming together nicely. Keep posting progress - your V8 monster will be a one of a kind!
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Lca mounts had no choice but to be under the subframe. I have plenty of ground clearance. The factory df lower rail sits 2 inches lower than the bottom of my subframe. I was battling control arm angle/control arm mounting location to still be able to access subframe bolts/axle length. This is the best I could come up with. Have not decided on finaly ride height yet but it will be between 5-8inches. Will know once my qa1 coilovers for the rear show up and I finalize upper arm mounts. As far as rake in the chassis I do plan to have it at least 1 inch higher in the rear to put center of gravity farther forward.
 
Desert Sasqwatch

Desert Sasqwatch

Bigfoot Goblin
I ended up pulling the side rails inward on my subframe as tight as I possibly could to make room for the LCAs to be as long as possible mounted next to the rails and still meet the track width of the Goblin. I'm still working on the total geometry but looking at the LCAs being close to the same length as the stock Cobalt arms, with the UCAs about 2.5-3 inches shorter for good camber gain. I'm designing in about 40-45% anti-squat and anti-lift (will be complemented by the 55-60% anti-dive geometry changes I made in the front suspension). This change in the rear is far better than the donor Cobalt geometry (anti-dive in the front suspension moved to the rear is actually pro-squat). I would recommend getting one of the suspension simulation apps (like V-susp) - if you haven't already -and use your suspension measurements to see if there is adequate anti-squat in your design. It will be very critical with the amount of torque you will be generating. :D
 
A

ah.b.normal

Goblin Guru
BTW, your doing amazing work and your subframe is coming together nicely. Keep posting progress - your V8 monster will be a one of a kind!
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Desert Sasqwatch said:
DS and V8 Gobbler. I am following intently despite being far away! Really enjoying every update! I feel sure some of the questions that will result from my end to end motor swap might be answered through this chronicle of your travails.
I have yet to be able to drive my creature, spring 2025 I’m hoping I’ll be defining many questions! Right now it’s all speculation.
Trying to be patient out here! ;)
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