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> Cutting out the trunk, It looiks easy, kinda
ChrisFoley
post Nov 11 2003, 08:00 PM
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Did someone suggest going nuts?


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FEF
post Nov 11 2003, 08:08 PM
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Oh ya...

This thread is a keeper.
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r_towle
post Nov 11 2003, 08:16 PM
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Chris, thats the correct rear end, though smaller tubing would still work from the shock mount to the rear....

Now were talking, then the whole rear end could be flip up fiberglass.
Thinking center seat now hmmmm

Rich
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ChrisFoley
post Nov 11 2003, 08:19 PM
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QUOTE(r_towle @ Nov 11 2003, 09:16 PM)
Chris, thats the correct rear end, though smaller tubing would still work from the shock mount to the rear....

Now were talking, then the whole rear end could be flip up fiberglass.
Thinking center seat now hmmmm

Rich

We could try things the way Colin Chapman used to with his Lotus designs - keep removing things or making them smaller until something breaks. (IMG:style_emoticons/default/laugh.gif)
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seanery
post Nov 11 2003, 08:21 PM
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Chris is that car PCA legal??
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TimT
post Nov 11 2003, 08:26 PM
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This car is a tube/semi-tube frame carbon/kevlar/glass 956 powered 914 monster. PCA classes it as GTP. " GT Prototype"

I dont have any pics of it with the rear bodywork of though


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TimT
post Nov 11 2003, 08:27 PM
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dfhds


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TimT
post Nov 11 2003, 08:27 PM
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dmtlsd


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r_towle
post Nov 11 2003, 08:31 PM
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This is where I am heading Chris...

A central cage wide enough for me, hang the front and rear suspension off of that.
then hang the body work off with itty bitty little light pieces of balsa wood and duct tape.

Rich
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ChrisFoley
post Nov 11 2003, 09:47 PM
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QUOTE(seanery @ Nov 11 2003, 09:21 PM)
Chris is that car PCA legal??

Nope, the owner wants to run at PHA (Pennsylvania Hillclimb Association) events.
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Jeroen
post Nov 11 2003, 09:56 PM
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QUOTE(r_towle @ Nov 12 2003, 03:58 AM)
THATS IT
Thats what I was talking about a long time ago with Tony and brad regarding a cage...
It has been done, under the window, trussing the tube down to the suspension console....

Yes, it is possible... but why would you?
Tying it to the top of the main hoop will add strength/stiffness because of better triangulation
It's also easier to build a brace going through a lexan rear window than through the firewall

cheers,

Jeroen
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URY914
post Nov 11 2003, 09:57 PM
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Heres mine


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URY914
post Nov 11 2003, 09:58 PM
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qqq


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ChrisFoley
post Nov 11 2003, 09:58 PM
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There's a 956 engined 914 out of NYC that I first saw back in'85. It's owned and piloted by Nick Ventura. Definitely as fast as any 935. Saw it crash at LRP a few years ago when he put a wheel off at the downhill exit. Nick was unconscious for a few minutes. Wish I had some pics of it, as its one sick 914. Looks a bit like the one Tim T posted.
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campbellcj
post Nov 11 2003, 11:18 PM
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Here is Jim Patrick's HSR West 2.0 car - I assume the lower tray is easily removable and helps smooth the airflow underneath?
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campbellcj
post Nov 11 2003, 11:22 PM
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I might add this to my "project list" for next year. Unfortunately I don't know how to weld, but maybe I will take it up in my spare time, LOL.


Is there any significant weight savings here, or is the main point for ease of maintenance access? It seems like it might be detrimental aero-wise.
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SirAndy
post Nov 11 2003, 11:38 PM
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QUOTE(r_towle @ Nov 11 2003, 05:58 PM)
It has been done, under the window, trussing the tube down to the suspension console....

yes.
if you don't want to cut the firewall like that, you can also "sandwich" a plate on each side and weld the tube onto that. gives you the same strength without the hole around it.
check with local club rules tho, might be illegal where you run ...

Andy
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Jeroen
post Nov 12 2003, 07:30 AM
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QUOTE(campbellcj @ Nov 12 2003, 07:18 AM)
Here is Jim Patrick's HSR West 2.0 car - I assume the lower tray is easily removable and helps smooth the airflow underneath?

It's totally beyond me why they left the firewall in place...
That undertray is nice though
I was thinking of something similar with a nice GT1 style diffuser (IMG:style_emoticons/default/biggrin.gif)

cheers,

Jeroen
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r_towle
post Nov 12 2003, 08:39 AM
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Chris,
I am leaning towards a complete tube frame.
I would hang the lightens "tub" off of it to comply with local rules....basically save the front and rear firewalls and the floor and I comply.

I would really like to hear thoughts on how to attach the rear trailing arms to a tube frame, or would we go with something completely different???
I figured out the front, coil over, loose the a-arms...still legal from what I can tell.

I like the looks of that 914 based race car above with only the front end showing....more pics of that would be great, thats the direction I am heading.....not straight there though...
I am thinking of a custom one piece 908 spyder style body.

So, there will be no upper cage, just a roll bar over the drivers head, with the structure on each side of the driver.

this is a climb in car, so the side structure can be the full height of the car, done out of tubing.
Think clean slate while running the cage right through the 914 tub.
Rich
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ChrisFoley
post Nov 12 2003, 11:02 AM
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QUOTE(r_towle @ Nov 12 2003, 09:39 AM)
I would really like to hear thoughts on how to attach the rear trailing arms to a tube frame

I am already in the process of designing a suspension console that combines the inner and outer pickups into one fabricated assembly. It will retain the stock attachment method for the trailing arm so my Delrin bushings will work, or the needle bearings for that matter. The method of camber/toe adjustment will remain as stock, preferably with my HD outer bracket. It will be possible to cut the chassis and weld this in at any desired elevation. I will be doing mine and another car at 3" above stock most likely. It will also be possible to mount this to a tube structure instead of the 914 chassis.
The difficult part will be aligning it properly so the rear wheels are in the correct position, but I have that figured out as well. I am thinking of offering a fixture to rent if anyone is ambitious enough to DIY, where the required deposit will be equal to the replacement cost. The first 2 prototypes should be done around Christmas this year if all goes well.
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