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Starting the Maserati CM4 Build!

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Wikispeeder Bruce C
Tewksbury, MA, USA   USA
Well, after debating designs and shooing away some Real Life impediments, the build is on! The 4th of July sale at Harbor Freight got me off my duff and moving. I now have the Predator engine in the garage, and a matching GTC torque converter on the way. Order for the frame material and other bits pending a full scale drawing.

I even have a new assistant to help me get the drawing right. He's so new he doesn't have a name yet, but I'm sure some incident will give him an appropriate one smiling smiley As you can see in the photo, he's an articulated 2D crash test dummy shaped model, made to my own height (but sadly, not quite my weight). He's made of 1/4 inch plexiglass cut on a laser cutter, with #6 screws and wingnuts at the joints. I wanted him so could get a really good fit in the car, because after the recent New England Dustoff, it was obvious that driver positioning and comfort was a key factor in having a car that was fun and easy to drive.

The plan is to use sheets of "Thrifty White Panel Board" from Home Depot for the drawing layout. I've used this stuff before as whiteboard and swear by it. It's about $13 a sheet, works well with dry erase markers and wet erase markers (think overhead projector markers). I'll be using wet erase markers for this job because the lines stay put, but are easily wiped up with a damp paper towel when needed. The white background gives a nice high contrast line, and you can even erase a dry erase marker line while leaving the wet erase line in place. Great for thinking-out-loud.

Does anybody have an outline drawing of the engine and/or torque converter assembly in side view? I'd love to have a template to move around on the design for best layout.

-Bruce

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Maserati4CM_Low Driver.jpg

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Woodysrods Brian Woods
Westbank B.C., Canada   CAN
Welcome Bruce
Search "Component Drawings" then go to page 2, post #29 by Charles Schultz
There is a printable side and rear view of the motor a TAV.
I to mine down to the local print shop and had them blow it up to the actual size using the dimensions shown, then cut it out and used it to pin up to my
full sized drawing on my shop wall.
Worked great of locating things.
Brian
"Woody"

Wikispeeder Bruce C
Tewksbury, MA, USA   USA
Thanks Woody, that's exactly the right thing!

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CmdBentaxle Avatar
CmdBentaxle Silver Member Dave D
Federal Way, Washington, USA   USA
1950 CycleKart Italian "1950 Ferrari 166 F2"
Bless you Sir, for settling on that Maserati!
Now do it justice!

Silverghost Peter Hays
Chicago, IL, USA   USA
I have the ability to make the full size driver mock up at work out of corrugated. If there is a CAD file - dxf. or pdf. or AI. - available, I can make sets. Use brads from a craft store for the joints and Bob's your uncle! smiling smiley

Wikispeeder Bruce C
Tewksbury, MA, USA   USA
File on the way to you, Peter. Have fun with it!

Wikispeeder Bruce C
Tewksbury, MA, USA   USA
Calling for advice on my design!

I'm trying to figure out how much narrower (if at all) I need to make the front of the car. It looks to me like the hood is very slightly angled in as it goes forward. There's a sort of skirt at the bottom that seems to get wider. Based on that, maybe the frame is actually parallel the entire length. Anybody concur? Having the frame parallel would make life somewhat easier for setup.

I'm seriously thinking of trying a rear suspension using the elliptical springs in the back. There are a few designs floating around on this site that have a sprung axle+engine setup, and since I'd have to build some sort of an inboard axle support anyway, it seems like something to try. If it's a total failure, I can make it rigid again easily enough. If only somebody made a weightless differential to go on it! LOL If anybody has tried a setup like this and wants to chime in to say how it worked, I'd love to hear about it.

Got a lot of stuff ordered and am awaiting arrival. Still need to clear out the shop to make room. It keeps raining on the days I have help and the time is dragging on.


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carChips Victor Harnish
Kelowna, BC, Canada   CAN
1933 MG Magnette
1973 Triumph Spitfire 1500 "Chip"
1989 GMC Sierra 1500 "Bush Truck"
Bruce, if you look closely at the front of the Maserati, you'll notice the front of the bodywork is narrower than the frame rails. The nose of the frame has a little panel covering it, you can just extend that panel back to cover the gap between frame and body, so, yes make your frame rails parallel.

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