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> BUILD-OFF CHALLENGE: Tygaboy's '75 LS3, It seemed a good idea at the time...
andrewb
post Mar 25 2020, 06:18 AM
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QUOTE(tygaboy @ Mar 25 2020, 06:11 AM) *

Bonus points if I can use it as a mold to make it in carbon and bond it to the carbon hood!


....and then the final logical step is to bond it flush to the hood and then take a mould and THEN make a one piece carbon hood with integral grill/vents. Getting it out of the mold might be fun but you obviously like a challenge.

I'm not saying it's the best solution in any way - aesthetics, engineering or anything else - but you could couldn't you ? (IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/biggrin.gif)

Congrats from this side of the pond on Al - u - mini - um by the way.
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sixnotfour
post Mar 25 2020, 09:42 AM
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QUOTE
Yeah, like that. But I mean, I can't just BUY one! You guys would never let me get away with that... poke.gif


Yours has way more design/thought,,,I thought it could help others, they make a bunch of shapes.
(IMG:style_emoticons/default/beerchug.gif)
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tygaboy
post Mar 26 2020, 09:00 AM
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Previous version (top) vs latest. The latest has:
- wider frame dimensions because the previous frame looked a bit "light"
- trailing edge radius flipped. This is the element that's giving me the most trouble. I'm struggling with what works best with the 914's design elements. I think I like this better but it may be that a simple, straight line is the way to go... (IMG:style_emoticons/default/idea.gif)
- leading edge radius modified to better match the hood leading edge
- fastener/rivet holes

This whole "design" thing is soooo time consuming. I second guess every change.
And the whole "I have to make it and see it on the car" isn't helping! (IMG:style_emoticons/default/screwy.gif)


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Andyrew
post Mar 26 2020, 09:10 AM
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QUOTE(tygaboy @ Mar 26 2020, 08:00 AM) *

Previous version (top) vs latest. The latest has:
- wider frame dimensions because the previous frame looked a bit "light"
- trailing edge radius flipped. This is the element that's giving me the most trouble. I'm struggling with what works best with the 914's design elements. I think I like this better but it may be that a simple, straight line is the way to go... (IMG:style_emoticons/default/idea.gif)
- leading edge radius modified to better match the hood leading edge
- fastener/rivet holes

This whole "design" thing is soooo time consuming. I second guess every change.
And the whole "I have to make it and see it on the car" isn't helping! (IMG:style_emoticons/default/screwy.gif)


Chris,

What about welding/flushing it into the hood so the outline isnt there?
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tygaboy
post Mar 26 2020, 09:21 AM
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QUOTE(Andyrew @ Mar 26 2020, 08:10 AM) *

QUOTE(tygaboy @ Mar 26 2020, 08:00 AM) *

Previous version (top) vs latest. The latest has:
- wider frame dimensions because the previous frame looked a bit "light"
- trailing edge radius flipped. This is the element that's giving me the most trouble. I'm struggling with what works best with the 914's design elements. I think I like this better but it may be that a simple, straight line is the way to go... (IMG:style_emoticons/default/idea.gif)
- leading edge radius modified to better match the hood leading edge
- fastener/rivet holes

This whole "design" thing is soooo time consuming. I second guess every change.
And the whole "I have to make it and see it on the car" isn't helping! (IMG:style_emoticons/default/screwy.gif)


Chris,

What about welding/flushing it into the hood so the outline isnt there?


@Andyrew - I actually like the exposed frame, given the whole exposed fastener/rivet thing is part of the build theme. I'm (currently!) of the opinion that if it's going to have a hood vent, it's not like it can be hidden, so why not make it a feature? I just want to do all I can to get it to look integrated.
That said, once I cut the opening in the hood, I can fit it on top or from underneath. That may cause a change of plan. I'll get pics of both. I'd be interested to hear what others think.
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jd74914
post Mar 26 2020, 09:42 AM
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I always kind of liked what byndbad914 did with his hood vents. They are somewhat flush mounted (really lower mounts with rivets, but frameless). A bit more agressive than yours though.

(IMG:http://www.914world.com/bbs2/uploads_offsite/www.negativereinforcementracing.com-1659-1585237351.1.jpg)

http://www.914world.com/bbs2/index.php?showtopic=204965
http://www.negativereinforcementracing.com/update.htm
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tygaboy
post Mar 26 2020, 09:45 AM
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QUOTE(jd74914 @ Mar 26 2020, 08:42 AM) *

I always kind of liked what byndbad914 did with his hood vents. They are somewhat flush mounted (really lower mounts with rivets, but frameless). A bit more agressive than yours though.

(IMG:http://www.914world.com/bbs2/uploads_offsite/www.negativereinforcementracing.com-1659-1585237351.1.jpg)

http://www.914world.com/bbs2/index.php?showtopic=204965
http://www.negativereinforcementracing.com/update.htm


@jd74914 - Yep, I've liked that set up, too.
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Cairo94507
post Mar 26 2020, 02:34 PM
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I like that but would make the louvers invade the trunk instead of being proud of the hood if they would still allow the hot air to escape.
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horizontally-opposed
post Mar 26 2020, 02:41 PM
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QUOTE(tygaboy @ Mar 26 2020, 07:00 AM) *

This whole "design" thing is soooo time consuming. I second guess every change.
And the whole "I have to make it and see it on the car" isn't helping! (IMG:style_emoticons/default/screwy.gif)


I wonder if engaging @Optimusglen might be a good idea? He is hugely talented and great to work with.

http://www.914world.com/bbs2/lofiversion/i...hp?t281607.html
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tygaboy
post Mar 26 2020, 03:27 PM
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Test V1. The good news is this hood was worse than I thought! LOTS of filler and other damage so I don't feel bad about cutting it up.

So, regarding Function and Form:

Does this look like it'll work to vent the radiator? Certainly.
Do I like it how it looks? I don't know.

I need to look at it for a few days.


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tygaboy
post Mar 26 2020, 03:28 PM
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I do like the way the rivets on the vent tie in with the fire wall rivets. And the angles/corners seem to work well together, too.


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tygaboy
post Mar 26 2020, 04:56 PM
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Better perspective on the "will it work?" aspect. Essentially a giant hole. OK, so really two medium holes... (IMG:style_emoticons/default/biggrin.gif)
I may add some ducting to help it flow as efficiently as possible.


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tygaboy
post Mar 26 2020, 05:01 PM
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QUOTE(horizontally-opposed @ Mar 26 2020, 01:41 PM) *

QUOTE(tygaboy @ Mar 26 2020, 07:00 AM) *

This whole "design" thing is soooo time consuming. I second guess every change.
And the whole "I have to make it and see it on the car" isn't helping! (IMG:style_emoticons/default/screwy.gif)


I wonder if engaging @Optimusglen might be a good idea? He is hugely talented and great to work with.

http://www.914world.com/bbs2/lofiversion/i...hp?t281607.html


@horizontally-opposed Pete - Yep, I've been thinking about that very thing. Not for designing a hood vent, but because I'd be interested in getting a 3D printable file of @Optimusglen 's 914 front fender vents. If I could make/have a set made, I think I'd be OK with venting the inner fenders and running a stock hood. I'll check with Glen. Thanks for the push!
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tygaboy
post Mar 31 2020, 05:07 PM
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Initial draft of the inner vent strake. I need to prove out my math and determine where to add the mounting tabs but this is where I started. Total guess work, but what else is new? (IMG:style_emoticons/default/laugh.gif)


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tygaboy
post Mar 31 2020, 05:08 PM
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Fit strake slot A into vent 1's slot A... A little fiddling to get everything to line up and things lock into place. (IMG:style_emoticons/default/cheer.gif)


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tygaboy
post Mar 31 2020, 05:09 PM
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I think this will look pretty cool. Maybe do the strakes in a contrasting color? We'll see.
On to fabbing the outers.


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djway
post Mar 31 2020, 08:09 PM
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Work of art
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tygaboy
post Apr 1 2020, 01:11 PM
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Strakes completed and fit.


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tygaboy
post Apr 1 2020, 01:11 PM
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And on the car.

As always, I see a couple things I need to change and a couple I want to change.
A few updates to the CAD file and I'll cut all new pieces, including the main panel.

I hate to toss this one as it really is a usable piece so if anyone wants it, as is, PM me. Shipping costs only from 94952.


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Nogoodwithusernames
post Apr 1 2020, 01:53 PM
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That is coming along quite nicely especially once those strakes are installed. Compound angles like that throw my brain for a loop so that's very impressive.

How would you feel about moving them outward towards the edges and adding a third strake in the center?

P.S. I'm tempted to take that one off your hands to put on my stock -4 just cause it looks so cool (IMG:style_emoticons/default/aktion035.gif)
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