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> BUILD-OFF CHALLENGE: Tygaboy's '75 LS3, It seemed a good idea at the time...
Cracker
post Jan 12 2017, 08:25 PM
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...ask the engine - it knows the drill! (IMG:style_emoticons/default/rolleyes.gif)

T
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tygaboy
post Jan 12 2017, 08:35 PM
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QUOTE(Cracker @ Jan 12 2017, 06:25 PM) *

...ask the engine - it knows the drill! (IMG:style_emoticons/default/rolleyes.gif)

T


Yeah, except that part about storing the top. You Southerners... always taking the easy way out...

(IMG:style_emoticons/default/poke.gif)
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Cracker
post Jan 12 2017, 08:39 PM
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I live in the South but am from C-A-L-I-! (IMG:style_emoticons/default/w00t.gif)

Regarding the top - mine would fit if I actually wanted it to Chris. My fist LS conversion I did store it in the trunk on factory clips. No biggie.

T

QUOTE(tygaboy @ Jan 12 2017, 09:35 PM) *

QUOTE(Cracker @ Jan 12 2017, 06:25 PM) *

...ask the engine - it knows the drill! (IMG:style_emoticons/default/rolleyes.gif)

T


Yeah, except that part about storing the top. You Southerners... always taking the easy way out...

(IMG:style_emoticons/default/poke.gif)
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mgp4591
post Jan 13 2017, 03:58 AM
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So Southern California, Tony?! (IMG:style_emoticons/default/shades.gif)
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Cracker
post Jan 13 2017, 09:50 AM
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Sorry Chris - last hi-jack + free bump!

Mom from Thousand Oaks; Dad from Bay area; Conceived (weirdly I know) in between on coast. I am an original "Central" Cali dude! Capiche! (IMG:style_emoticons/default/shades.gif)

Now past my family tree...back to Chris's lame build. (IMG:style_emoticons/default/poke.gif)

T

QUOTE(mgp4591 @ Jan 13 2017, 04:58 AM) *

So Southern California, Tony?! (IMG:style_emoticons/default/shades.gif)
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andys
post Jan 13 2017, 11:14 AM
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Chris,

I've been remiss at commenting on your terrific build. Nice work; well thought out. I look forward to reading more as you progress. Keep up the good work!!

Andys
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jd74914
post Jan 13 2017, 01:00 PM
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QUOTE(tygaboy @ Dec 21 2016, 08:42 PM) *

To quote a builder I admire (David Palatov of Palatov Motorsport):

"Clearance is clearance."

Palatov is awesome! He turns out some pretty cool stuff and his blog is second to none.

QUOTE(tygaboy @ Jan 12 2017, 08:30 PM) *

I started messing with the intake. In running the Mass Airflow Sensor (MAF), I have to follow a few rules about where the sensor has to be, relative to the throttle body. I need a minimum of 10 inches from the throttle body, six inches of straight tube, the sensor has to be set at between a 9:00 - 3:00 orientation...

How big is that motor? It wants 6" straight upstream then 10" downstream to TB? Interesting. That seems a little restrictive since the air shouldn't be moving super fast so the velocity profile should be pretty uniform. A while ago I actually took a similar style [thermal] sensor and offset mounted it in a duct bend to measure the effective average flow but that took a fair bit of analysis. (IMG:style_emoticons/default/blink.gif)

Maybe just some stiffener tube scalloping would make everything fit nicely. It does look pretty cool now!

Thanks for showing pictures of the end of the long. There is a thread around here with some, but yours show the attachment issue much better.
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tygaboy
post Jan 13 2017, 01:46 PM
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QUOTE(jd74914 @ Jan 13 2017, 11:00 AM) *

QUOTE(tygaboy @ Dec 21 2016, 08:42 PM) *

To quote a builder I admire (David Palatov of Palatov Motorsport):

"Clearance is clearance."

Palatov is awesome! He turns out some pretty cool stuff and his blog is second to none.

QUOTE(tygaboy @ Jan 12 2017, 08:30 PM) *

I started messing with the intake. In running the Mass Airflow Sensor (MAF), I have to follow a few rules about where the sensor has to be, relative to the throttle body. I need a minimum of 10 inches from the throttle body, six inches of straight tube, the sensor has to be set at between a 9:00 - 3:00 orientation...

How big is that motor? It wants 6" straight upstream then 10" downstream to TB? Interesting. That seems a little restrictive since the air shouldn't be moving super fast so the velocity profile should be pretty uniform. A while ago I actually took a similar style [thermal] sensor and offset mounted it in a duct bend to measure the effective average flow but that took a fair bit of analysis. (IMG:style_emoticons/default/blink.gif)

Maybe just some stiffener tube scalloping would make everything fit nicely. It does look pretty cool now!

Thanks for showing pictures of the end of the long. There is a thread around here with some, but yours show the attachment issue much better.


It's a 6.2 liter. First, I'm no expert so I'm only quoting what I'm finding on line. Here's a pic of what came with the blade style MAF sensor re: what needs to go where.
Sorry that I wasn't more clear. Shoulda included the pic in the first place...


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tygaboy
post Jan 13 2017, 02:22 PM
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QUOTE(andys @ Jan 13 2017, 09:14 AM) *

Chris,

I've been remiss at commenting on your terrific build. Nice work; well thought out. I look forward to reading more as you progress. Keep up the good work!!

Andys


Hi Andy - Wow, thanks. Coming from someone who's done such a high quality build... (IMG:style_emoticons/default/pray.gif)
that means a lot.
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tygaboy
post Jan 15 2017, 08:01 AM
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Feeling boxed in? My rear shock towers are with you!

After a bit more head scratching, I decided to go a different route: I wanted to run one piece of reinforcement from the long up to and around the tower. Since I'm not exactly sure how the removable trunk liner will work, I opted to retain the lip the runs up the tower.

So I sliced a channel for the sheet metal.


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tygaboy
post Jan 15 2017, 08:09 AM
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Then I made a pattern and fit a piece that slips down into that channel. This is the driver's side, which I just happened to tackle first.

I tacked it in, "persuading" it to wrap the tower, plug welding as I went along.

Then fit and tacked in the top part. It's plug welded, too. I still have to final trim the top part where it wraps the tower. I left it a bit tall for now as I may plate it to the Tangerine Racing raised rear shock towers, once those are installed.

Then I need to add a bottom piece to close in the box and seam weld everything.


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tygaboy
post Jan 15 2017, 10:44 AM
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Let me back up and show a bit more detail.
Here's the pattern and the trimmed and bent piece, then how it fits before I start tacking and wrapping it around the tower.

Exciting, I know...!


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tygaboy
post Jan 15 2017, 02:38 PM
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Tacked and plug welding my way around. I use a rubber mallet (IMG:style_emoticons/default/smash.gif) to help get it around the tower. The big clamp sure makes it easy to get the last couple plug welds.


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tygaboy
post Jan 15 2017, 02:40 PM
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All done and ready for the final trimming before the seams get welded! (IMG:style_emoticons/default/cheer.gif)


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tygaboy
post Jan 15 2017, 02:42 PM
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High altitude shot of the rough finished rear tower stiffening. This will be LOTS better than stock.

I feel like I made some progress this weekend!


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tygaboy
post Jan 15 2017, 02:47 PM
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Now I can get on with the bars.
Here's the final design on the cross bracing. I'll add a filler plate between them with some fun/interesting cut outs.

The final shot is proof that I have clearance and can fit the top with the arched upper bar!

I then laid the trunk on and everything clears. Woop, woop!

Now I'll fab up some brackets for those clips that hold the front of the top. I also need a bracket to locate the hood latch. This part of the car feels like it's finally coming together.


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altitude411
post Jan 15 2017, 03:04 PM
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Really enjoying your build Chris, thanks for taking the time to post. (IMG:style_emoticons/default/beerchug.gif)
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ssuperflyoldguy
post Jan 16 2017, 12:56 AM
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Every time I come visit this thread there is less & less blue car there - gonna be a little sad when you start closing it in - great build tho - Napa Rocket Garage. Gonna have to come up n see Martin about some Mini stuff (he needs a transmission which I may have 4 more tomorrow), then he can tell me how much of the welding is yours...
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mbseto
post Jan 16 2017, 08:50 AM
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No weld thru primer on that layer over the suspension tower?
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tygaboy
post Jan 16 2017, 09:14 AM
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QUOTE(mbseto @ Jan 16 2017, 06:50 AM) *

No weld thru primer on that layer over the suspension tower?


Yes, I weld thru primer'd the towers and the back side of the plates before attaching them.
I plan to use some Eastwood frame coating inside the box, after I close it in.
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