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Old 06-13-2013, 06:33 PM   #51
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Quote:
Originally Posted by Slow Z View Post
Oil is a critical component of an engine, not an unimportant, thin piece of sheet metal that's hidden by carpet and seating. Really, what is the big deal about cutting a small hole into an f-body? Why is it acceptable to do all sorts of other crap to them, but suddenly cutting a hole is crossing the line?

I'm sure a lot of people on here have modified their wheel wells for tire clearance, drilled holes to mount ignition boxes, etc. and no one cries when they see that.
It's a unibody car so I can make the same critical component comments about that thin piece of sheet metal
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It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 06-13-2013, 07:49 PM   #52
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I cut the floor, made a nice cover and its fine. I'll never have to drop the tank ever again. Done right, its no big deal. If you hack it to bits, then yeah, your are setting yourself up to fail.

Hole cut, edges deburred, primed and painted. Nutserts installed, cover shaped to fit the contours of the floor and wrap over the edges of the stamped sections for strength and to help locate it (shaping skills still a work in progress). Primed and painted both sides. Stainless button head hardware, some rubber on the back of the cover along the edges for sealing purposes and call it done. And yes there is room between the underside of the floor and the tank so nothing (nutserts etc.) will puncture or rub the tank over time.

No pointy self tapping single use sheet metal screws or pop rivets, no gobs of RTV, no drilling blindly or cutting through the top of the tank with the whizzer wheel and sparks flying, no plasma cutting, or red wrench. Just common sense and a little bit of planning and some effort will get you through and no one will be the wiser.

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Old 06-13-2013, 08:02 PM   #53
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Quote:
Originally Posted by MyFirstZ View Post
Here is an example of one on a car i just worked on.

Again a fuel tank shouldn't be leaking fumes regardless otherwise it should throw a check engine light. Even when I have seen gas pouring out the top of the gas tank this cover seals it well enought it never made any fumes into the vehicle.



I remember draining the tanks from the pump well for vw's when my dealership used to fill up diesels w/gas (by accident)....and no, it wasn't me..
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Old 06-13-2013, 08:12 PM   #54
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Quote:
Originally Posted by 1QWIKBIRD View Post
I cut the floor, made a nice cover and its fine. I'll never have to drop the tank ever again. Done right, its no big deal. If you hack it to bits, then yeah, your are setting yourself up to fail.

Hole cut, edges deburred, primed and painted. Nutserts installed, cover shaped to fit the contours of the floor and wrap over the edges of the stamped sections for strength and to help locate it (shaping skills still a work in progress). Primed and painted both sides. Stainless button head hardware, some rubber on the back of the cover along the edges for sealing purposes and call it done. And yes there is room between the underside of the floor and the tank so nothing (nutserts etc.) will puncture or rub the tank over time.

No pointy self tapping single use sheet metal screws or pop rivets, no gobs of RTV, no drilling blindly or cutting through the top of the tank with the whizzer wheel and sparks flying, no plasma cutting, or red wrench. Just common sense and a little bit of planning and some effort will get you through and no one will be the wiser.

Chris
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Old 06-13-2013, 08:23 PM   #55
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Saw pics of the '98 access panel. It's a bit larger than that.

Pic (obviously not mine):

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Old 06-13-2013, 08:28 PM   #56
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i butchered mine up.

the question is if you care what people will say
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In all honesty, unless you have some weird addiction to your motor, go LSX. It will be cheaper, easier, and actually be able to be tuned.
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Old 06-13-2013, 09:02 PM   #57
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Quote:
Originally Posted by Mike View Post
It's a unibody car so I can make the same critical component comments about that thin piece of sheet metal
But you would be incorrect. None of that thin sheet metal holds the chassis together. The front and rear sub-frame, braces, suspension, and body panels do. You could remove all the sheet metal from the area I crudely highlighted below without causing any structural issues to the car:


(disregard where I accidentally highlighted part of the front sub-frame where the trans crossmember mounts - you definitely need that)

Now don't get me wrong, I'm not saying you can blindly take a saw to this entire area. You'd have to cut around a few factory braces and mounting points, but if you carefully removed just the sheet metal, the car would be as structurally sound as it was prior to you destroying it.
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Old 06-13-2013, 09:14 PM   #58
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That car would at a minimum lose square. If not fold in half
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Originally Posted by 79CamaroDiva View Post
It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 06-13-2013, 10:31 PM   #59
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Quote:
Originally Posted by Mike View Post
That car would at a minimum lose square. If not fold in half
You're going from one extreme to another. I don't really know how to prove this to you, but think about this... Do you think GM engineers would make an entire vehicle's chassis depend upon some flimsy sheet metal? Do you think this flimsy sheet metal, despite being able to bend it with your bare hands, is somehow simultaneously strong enough to hold your entire 3400lb car from "folding" in upon itself? Without this metal, your rear differential and k-member will bend, the sub-frame will collapse along with the bumpers/rad support, and your roof will form a V shape? That would be crazy... So just think about all these heavy-ass iron parts that connect to each other, they're what hold the car together. The crappy flimsy sheet metal is just there to separate you from the outside elements.

When it comes to the squareness of an f-body... It's probably not truly square to begin with nor was it when it came off the assembly line brand new.
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Old 06-13-2013, 10:45 PM   #60
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No, they designed a whole car. Al the pieces depend on the other to maintain their structural integrity
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Quote:
Originally Posted by 79CamaroDiva View Post
It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 06-13-2013, 11:08 PM   #61
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