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> BUILD-OFF CHALLENGE: Tygaboy's '75 LS3, It seemed a good idea at the time...
Cairo94507
post Dec 11 2021, 08:02 AM
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Hi Chris, @Tygaboy
I like the taillight panel venting and think that would be a very cool place for the intake. I like the design with the slanted openings- did you consider trying to match the sail panel angles for the openings? Just spitballing while looking at it. Not sure about the trunk lid vents- For me, with the front vents, which I love, the rear lid goes to far.
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cassmcentee
post Dec 11 2021, 08:04 AM
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Looking Good Chris!

Food for thought: Instead of levered vents
What about a "Torpedo Outlet"?!?
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Could be a design play from the shape of the front fender... much like this first submarine pic
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could have a vent "Butterfly" like this second sub pic
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By "Torpedo Outlet" I mean like what you see on a submarine only facing backwards
Even crazier... tie the torpedo vent to the gas pedal so that it opens upon acceleration.
Like the butterfly on a blower...

Early morning design impressions with my second cup of coffee!
Cheers,
Cass
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willieg
post Dec 11 2021, 10:56 AM
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Chris
Now that you have opened up your forum to idjits like myself, with more creativity than sense, I have two suggestions. First, for the intake. Use the rear of the trunk, where you already have two options, and run the intake to an air filter that is attached to your rear valence work. From the back of the car, the only part of the intake that is visible would be black mesh covering the filter.

Second, obviously you are very anxious to cut on the trunk lid. What about modifying the trunk lid to act as a downforce spoiler? NO…..not the whole trunk lid, although that would look awesome, but just the rear part of the trunk lid. You probably have the electronics to tell a spoiler to open at a specific speed.
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live free & drive
post Dec 11 2021, 08:00 PM
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I always thought Armando did a nice job on integrating this transmission cooler in the back-panel - food for thought:

https://pbase.com/9146gt/the9146gt_901_916_...and_fabrication
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KELTY360
post Dec 12 2021, 10:46 AM
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You may need to call your 914 the VENTura model. (IMG:style_emoticons/default/shades.gif)
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tygaboy
post Dec 15 2021, 05:51 PM
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Back to the wiring since I figured I should focus on things that'll get the car back on the road...

Out with the old, in with the new: First thing is to mount the new components. The ECU Master power management unit (PMU) you see here replaces:
- the Arduino "magic box"
- 8 relays needed by the Arduino
- the wireless turn signal management unit
- all but a few of the fuses and relays

I also upgraded the Raptor wireless unit to the smaller "GP" version in the pic.

The ECU aside, what's pictured are the only other electronic components needed to operate the car. Much tidier, if I do say so.

Next up: wiring!


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tygaboy
post Dec 17 2021, 10:05 AM
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I swear I'm working on the wiring! But a main component arrived for the other intake design I'm planning. Aluminum CNC 2 x 3" to 4" merge. This attaches to the throttle body and will then have symmetric intake tubes running to a matched set of air boxes/cleaners - one on each side of the engine.


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tygaboy
post Dec 17 2021, 02:39 PM
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Ready for the intake tube routing!


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tygaboy
post Dec 18 2021, 02:01 PM
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Not even I can keep up with what's going on with this build! (IMG:style_emoticons/default/laugh.gif)
Headers and exhaust are back from ceramic coating. This color is "titanium' - at least at the place I used. It's a bit less gold than the Ceracote I had on the exhaust before and being a bit more subtle, I prefer it.

And I think I'm going to pull cold air through the rear panel vs. venting the trunk lid. At least for now, anyway. On to building an appropriate air box.


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Rand
post Dec 18 2021, 02:50 PM
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Looking amazing! I agree with your thoughts on not putting vents in the deck lid.
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Cracker
post Dec 18 2021, 08:03 PM
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Hmm. Well at least you're in good company... (IMG:style_emoticons/default/shades.gif)

This was the first iteration - much improved later on (second pic) but this gives you an idea. Yours will be infinitely better, I know, but I was building this purely for performance.

For those that might think I am a bit hard on Chris - we are ok; he has thick skin. (IMG:style_emoticons/default/beerchug.gif)

Cracker

QUOTE(tygaboy @ Dec 18 2021, 03:01 PM) *

And I think I'm going to pull cold air through the rear panel vs. venting the trunk lid. At least for now, anyway. On to building an appropriate air box.


First attempt...
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Final iteration...
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We be friends...
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bkrantz
post Dec 18 2021, 10:01 PM
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Isn't the air space immediately behind the car turbulent and/or low pressure?
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Cracker
post Dec 18 2021, 10:23 PM
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I won't post on Chris's build thread anymore on this but the answer is yes, you are correct. These two men, from Porsche Motorsport were in North America for meetings and at Barber Motorsports Park while I was running. They came up and asked if they could look the Teener over and take pictures - I obliged and we ended up having a good long conversation about the 914 platform. One thing that puzzled them was the intake design (appropriately included in the picture below) - they marveled at how fast the car accelerated - it didn't make sense to them. Many other knowledgeable "racers" have questioned my intake design - bottom line - it works - period. To make matters even more confusing for folks - my oil cooler intake was captured from the roof and onto the intake - people thought my intake was exhaust and oil cooler was an intake. Fun. (IMG:style_emoticons/default/shades.gif)

I look forward to seeing what Chris comes up with - at least the first 10 or so variations... (IMG:style_emoticons/default/poke.gif) Enough of my old build - Chris, get this car finished!!! (IMG:style_emoticons/default/stirthepot.gif)

Cracker

QUOTE(bkrantz @ Dec 18 2021, 11:01 PM) *

Isn't the air space immediately behind the car turbulent and/or low pressure?


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tazz9924
post Dec 19 2021, 04:09 PM
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QUOTE(Cracker @ Dec 18 2021, 08:23 PM) *

I won't post on Chris's build thread anymore on this but the answer is yes, you are correct. These two men, from Porsche Motorsport were in North America for meetings and at Barber Motorsports Park while I was running. They came up and asked if they could look the Teener over and take pictures - I obliged and we ended up having a good long conversation about the 914 platform. One thing that puzzled them was the intake design (appropriately included in the picture below) - they marveled at how fast the car accelerated - it didn't make sense to them. Many other knowledgeable "racers" have questioned my intake design - bottom line - it works - period. To make matters even more confusing for folks - my oil cooler intake was captured from the roof and onto the intake - people thought my intake was exhaust and oil cooler was an intake. Fun. (IMG:style_emoticons/default/shades.gif)

I look forward to seeing what Chris comes up with - at least the first 10 or so variations... (IMG:style_emoticons/default/poke.gif) Enough of my old build - Chris, get this car finished!!! (IMG:style_emoticons/default/stirthepot.gif)

Cracker

QUOTE(bkrantz @ Dec 18 2021, 11:01 PM) *

Isn't the air space immediately behind the car turbulent and/or low pressure?


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Do you have a picture gallery of your car somewhere? i would really love to look at whatever you have!
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tygaboy
post Dec 20 2021, 04:52 PM
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More input from Tony @cracker - and I don't know why I didn't even try it earlier: Run everything to the right side. He suggested building the air box inside the fender, behind the rear wheel so the intake tube would "end" inside the trunk.
I'm noodling on that part but I think the "go right" design is a keeper.
I'll likely cut/reweld the intake tube to get it to exactly match the angles of the exhaust.

And no, this will never end! (IMG:style_emoticons/default/lol-2.gif)


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tygaboy
post Dec 20 2021, 04:57 PM
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And to complicate matters, I just watched a PAIR (not a set, a PAIR!) of 16 x 8 Fuchs sell for $4100 on Bring a Trailer. I thought that was insane so went to the Fuchs site to see what brand new ones cost. $948.72 each.

What am I not understanding? I guess maybe date codes are everything so some folks.

Anyway, the REAL problem is I see this banner on the site. I think I need a set just like this in 8s and 9s!


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Cracker
post Dec 21 2021, 06:50 PM
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I'll bite Chris...those wheels would look absolutely killer with a blue car (someday; year; or decade)! (IMG:style_emoticons/default/poke.gif)

Cracker
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Rand
post Dec 21 2021, 07:07 PM
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You gotta take cracker a little at a time. It's like a low carb diet. (IMG:style_emoticons/default/shades.gif)
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Cracker
post Dec 21 2021, 07:14 PM
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Not accurate, Rand...you take "cracker" with good cheese and wine and enjoy the moment(s). (IMG:style_emoticons/default/shades.gif)


QUOTE(Rand @ Dec 21 2021, 08:07 PM) *

You gotta take cracker a little at a time. It's like a low carb diet. (IMG:style_emoticons/default/shades.gif)
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Rand
post Dec 21 2021, 07:36 PM
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The cheese is boost.
I don't whine.
I will enjoy the moment.
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