How to lower seat height?

[Young1]

I am 6-1 with a long torso. The top of my head with a ball cap on nearly touches the headliner. No way can I auto cross wearing a helmet with the targa installed. Has anyone ever lowered the seat mounts? How do the GM engineers do it on the Spyder?


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[BigJohn]

GM Engineers can not be over 5-1

[Young1]

GM engineer equals Small man syndrome huh?

But how did they get the seat so low in the convertible Spyder concept car with its raked low windshield?

I have heard of racers fabbing a bubble in the targa for helmet clearance.


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[HAWAIIZR-1]

If you’re not set on the stock seat and power seat track you can lower quite a bit from what I researched on CF C4 section. I have a Corbeau A4 ordered shaved 1” bottom and also custom brackets to adapt to stock power seat unit which also lowers it a bit. If I were your height I would have to forego the power seat track for a manual slider to go even lower. The A4 seat (even shaved) is very comfortable to me, but I have not spent more than a couple hours at a time in them.


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[BigJohn]

I have bolted seats to the floor with no track.

[GOLDCYLON]

I am 6-1 with a long torso. The top of my head with a ball cap on nearly touches the headliner. No way can I auto cross wearing a helmet with the targa installed. Has anyone ever lowered the seat mounts? How do the GM engineers do it on the Spyder?


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The C4 interior dimensions were set for the standard male in the 1980s which was 5'10" and 175 lbs. I'm 6ft 2" with short legs and long torso as well. I found a little more room with the 94-96 seats and the front of the seat tilted up slightly. Might give you the extra space you need. More comfortable seat as well. GC

[Young1]

Thank you for the suggestions I sure wish I was 175 lbs! I would be 18 again!


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[PhillipsLT5]

Clear top adds headroom for helmet and is lighter


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[lfalzarano]

You can unhook the straps under the seat. I’m 6’4”.

BTW - The hard top, not the clear, is recommended for spirited high speed driving, since it is reduced body flex and potential damage to you irreplaceable windshield.


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[-=Jeff=-]

move the trapeze straps on the seat to the outer hooks not the middle that might help too