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V8Steve
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JUL 02, 11:07 AM
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I finally completed the wiring on this car. The last step was to extend the plug from the firewall harness to the decklid plug. Up until now, I couldn't use the trunk popper.
The problem is that the trunk still requires the key.
I've bench tested the solenoid alone it retracts with a snap. I attached to the latch assembly and locked it with a screwdriver. Then I applied 12V from my jump box and it works perfectly. I also removed all paint from the latch contacts where it will mate with the U-shaped piece in the trunk. When reattached to the decklid and then closed, I can hear the solenoid moving but the lid doesn't pop open. So then I ran a jumper from the U-shaped piece to the latching assembly, cocked it with a screwdriver, and bumped the dash rocker switch. Again, it snapped open.
The car has a new decklid rubber seal so I tried moving the U-shaped piece up and down to get different amounts of compression on the seal. It ranged from a loose latching to a pretty snug fit where I had to push down on the lid to latch it. Again, the solenoid snaps but the lid still requires the key.
The previous generation of this V8 swap car had only one decklid torsion bar plus one Rodney Dickman strut. This 2nd and hopefully last generation has no decklid torsion bar but has two Rodney struts. The gas struts provide little or no lift when the decklid is closed as they serve mainly to keep it open. So there is nothing to give it an upward boost one the latch fires open.
I'm wondering if the full dead weight of the decklid is such that the solenoid actuated latch cannot actually move the latch assembly out of the U-shaped piece. Has any one else come across this? Am I missing something?------------------
88GT 355 CI Sequential Holley HP Multiport EFI, AFR milled 180, Dyno'd at 427 HP, 360 WHP, F40 6-Spd
anderson@gdsconsulting.com
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Dennis LaGrua
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JUL 03, 06:10 AM
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There are two rubber bumpers on the deck lid on each side that when adjusted properly exert a small amount of upward pressure to insure that the deck lid pops off the latch when it is energized. They are adjustable but the rubber being 30+ years old; most of them are now brittle and do not work. The Fiero Store sells a new set of 4 for $8.95. Replace them adjust by screwing them into the right position and the problem will be solved. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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V8Steve
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JUL 03, 11:48 AM
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Dennis,
Thanks! Later yesterday I gained some improvement by moving the U-shaped piece laterally. I thought it was hanging up the release. I got it work 4-5 times without issues but when I tried it today....same problem. Will try more adjustment.
Your suggestion makes sense and I ordered the bumpers today.
The lid is pretty heavy without the torsion bars. The two Dickman struts don't offer any lift with the lid down. Hopefully the bumpers will help. If not, I'm thinking about modifying the bumpers with perhaps a few properly sized Belleville spring washers to give just enough upward bias. I have other tips from Archie to explore.
Stay tuned.......------------------
88GT 355 CI Sequential Holley HP Multiport EFI, AFR milled 180, Dyno'd at 427 HP, 360 WHP, F40 6-Spd
anderson@gdsconsulting.com
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V8Steve
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JUL 03, 04:41 PM
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Backed out the two rubber bumpers.....problem solved. Will put in new bumpers next week.
Dennis...THANKS!------------------
88GT 355 CI Sequential Holley HP Multiport EFI, AFR milled 180, Dyno'd at 427 HP, 360 WHP, F40 6-Spd
anderson@gdsconsulting.com
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Patrick
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JUL 03, 08:55 PM
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| quote | Originally posted by V8Steve:
I'm wondering if the full dead weight of the decklid is such that the solenoid actuated latch cannot actually move the latch assembly out of the U-shaped piece.
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| quote | Originally posted by Dennis LaGrua:
There are two rubber bumpers on the deck lid on each side that when adjusted properly exert a small amount of upward pressure to insure that the deck lid pops off the latch when it is energized.
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I suspect those rubber bumpers are more for how the closed decklid aligns with other panels than anything else. With a lack of upward force due to both torsion bars being removed, it's quite possible that the popper has indeed lost its... pop.
[EDIT] For some reason, I didn't see the following post when I posted. 
| quote | Originally posted by V8Steve:
Backed out the two rubber bumpers.....problem solved. Will put in new bumpers next week.
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Steve... with those bumpers adjusted higher, does your closed decklid still align (height-wise) with the other panels? If so, that's great![This message has been edited by Patrick (edited 07-03-2021).]
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V8Steve
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JUL 03, 11:42 PM
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The decklid is fairly flush in the rear corners, just under the spoiler, with the bumpers backed out.
I agree that the bumpers are more for alignment while the torsion bars compensated for the weight.
I think my decklid just rested in the closed latch and then by virtue of its' own dead weight, stayed there after the solenoid fired, and relocked itself.
Now, with a small amount of upward bias from the bumpers, the decklid latch has enough upward lift to prevent "self re-latching".
Whatever the theory is, it seems to work!
This is one of the last details of my 2nd generation of this car from 2015 to present...6 years of rebuild with 427 HP engine dyno 355 SBC.------------------
88GT 355 CI Sequential Holley HP Multiport EFI, AFR milled 180, Dyno'd at 427 HP, 360 WHP, F40 6-Spd
anderson@gdsconsulting.com
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Patrick
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JUL 04, 01:12 AM
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| quote | Originally posted by V8Steve:
This is one of the last details of my 2nd generation of this car from 2015 to present...6 years of rebuild with 427 HP engine dyno 355 SBC.
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I hope you shoot and post some video of this beast running. 
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V8Steve
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JUL 10, 11:48 PM
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Patrick
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JUL 10, 11:59 PM
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| quote | Originally posted by V8Steve:
Here's the video
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Sweet. Sounds great! 
(Steve, click EDIT on this post to see how I embedded your video.)
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V8Steve
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JUL 11, 12:05 AM
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Patrick - Thanks!
Motor was built by PK Machine in Fitchburg, MA
Mufflers in video were Thrush but later changed to a pair of pancaked FlowMasters.------------------
88GT 355 CI Sequential Holley HP Multiport EFI, AFR milled 180, Dyno'd at 427 HP, 360 WHP, F40 6-Spd
anderson@gdsconsulting.com
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