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-   -   It has begun - G-Pete's 289FIA Scratch Build (http://www.clubcobra.com/forums/scratch-builders-forum/109021-has-begun-g-petes-289fia-scratch-build.html)

G-Pete 11-10-2011 06:01 AM

Yes John, the chassis is stiffer than before. It increased by calculated 5000 lbs over 90x64 diagonal torsion test in SolidWorks Pro.

The body including the trunk lid, hood and doors totals 39 pounds.

G-Pete 11-10-2011 06:15 AM

Quick check about the windshield height.

http://photos.imageevent.com/germanp...m_DSC06635.jpg

The first part of the rollbar is fixed and has the same height as the windshield. The rollbar will be braced forward - thus it needs more work.

http://photos.imageevent.com/germanp...m_DSC06638.jpg

Tubular sub frame for the rear part of the body - later also base for the door lock.

http://photos.imageevent.com/germanp...m_DSC06640.jpg

Rear passenger side splash shield welded in place.

http://photos.imageevent.com/germanp...m_DSC06641.jpg

Inside view of it.

http://photos.imageevent.com/germanp...m_DSC06642.jpg

The driver side, as you can see I mostly work on two or more places at the same time. This is the final version of the dashboard.

http://photos.imageevent.com/germanp...m_DSC06643.jpg

Time to start on the sway bar.

http://photos.imageevent.com/germanp...m_DSC06645.jpg

Stay tuned. Soon I will fabricate the inner frames for the hood, trunk and doors. The door latches should come in any day.

dallas_ 11-10-2011 07:52 AM

Since your quick jacks are functional, are you going to fabricate one of the original style quick jack lifts? :D

http://www.clubcobra.com/photopost/d..._Jack_lift.jpg

G-Pete 11-10-2011 12:05 PM

I made this quick jack a few years ago - that is a 750 lbs bike which this one was effortless to move and secure.
The quick jack for the 289FIA will be longer and has wheels. 6 foot in total length and fold-able.

http://photos.imageevent.com/germanp...e/DSC06211.JPG
http://photos.imageevent.com/germanp...e/DSC06217.JPG

Fullchat289 11-11-2011 06:18 AM

Pete:

45 degrees is a good place to start for an FIA windscreen...some guys have gone a bit lower than that - closer to 43 degrees... It makes the look of the car, IMHO.

http://www.clubcobra.com/photopost/d...72dpi_LC-1.jpg

- Allen.

G-Pete 11-14-2011 06:29 AM

Yes Allen, 45 degrees that I had in mind too. The roll bar loop height was measured with the 45 deg. angle.

BTW: did you notice the dent near the passenger head light?

Fullchat289 11-14-2011 06:45 AM

Ha..no I did not...my gaze usually stops at the sight of webers.. ;)

Considering that's CSX2345, I guess it's allowed to have a dent or two.

- Allen.

G-Pete 11-21-2011 05:41 AM

Dash fabrication, I elected the drop-down style for the switches.

http://photos.imageevent.com/germanp...m_DSC06649.jpg

First test fit, the angle is perpendicular to the steering column/wheel.

http://photos.imageevent.com/germanp...m_DSC06651.jpg
http://photos.imageevent.com/germanp...m_DSC06653.jpg

These are the tabs which hold the dash board.

http://photos.imageevent.com/germanp...m_DSC06657.jpg

There are 8 mounting points for the dash.

http://photos.imageevent.com/germanp...m_DSC06655.jpg

Brake-fluid reservoir mounting bracket made from stainless steel.

http://photos.imageevent.com/germanp...m_DSC06658.jpg

Front showing. The Hydroboost is too close to the frame, the solution is to make the reservoir remote.

http://photos.imageevent.com/germanp...m_DSC06659.jpg
http://photos.imageevent.com/germanp...m_DSC06660.jpg

G-Pete 11-21-2011 05:53 AM

PA side bracket for the anti-roll bar (sway bar).

http://photos.imageevent.com/germanp...m_DSC06662.jpg

Preliminary setup, the 1 inch bar will be shortened later on.

http://photos.imageevent.com/germanp...m_DSC06663.jpg

Connectors cut, welded and assembled.

http://photos.imageevent.com/germanp...m_DSC06664.jpg
http://photos.imageevent.com/germanp...m_DSC06665.jpg

Torsion bar shortened, spline bushing welded.

http://photos.imageevent.com/germanp...m_DSC06667.jpg

PA side shown installed the complete Anti-Roll-Bar.

http://photos.imageevent.com/germanp...m_DSC06668.jpg
http://photos.imageevent.com/germanp...m_DSC06671.jpg

DR side and top view.

http://photos.imageevent.com/germanp...m_DSC06675.jpg
http://photos.imageevent.com/germanp...m_DSC06677.jpg

G-Pete 11-21-2011 06:02 AM

Harrison engine coolant overflow tank.

http://photos.imageevent.com/germanp...m_DSC06678.jpg

Bracket for the tank. The tank needs to be on the left side because of the later on plumping of the super-charger.

http://photos.imageevent.com/germanp...m_DSC06679.jpg
http://photos.imageevent.com/germanp...m_DSC06680.jpg


Right now I'm kicking the idea around of a small turkey pan with a square K&N filter on top.
This would eliminate under hood pressure created by the hood scoop. Besides that, it would deliver denser air to the system.

G-Pete 11-25-2011 06:41 AM

Thanksgiving is over back to work...

I hope everyone enjoyed the family and the food and for many the games.

http://photos.imageevent.com/germanp...m_DSC06696.jpg

G-Pete 11-25-2011 07:26 AM

A little while ago I fetched on craigslist a table lift. The lift was leaking and I got it for a very good price (5c on the dollar). Seals and paint $150 and I have a great lift. I removed the table top and welded cross bars in it. The table top weighs 220 pounds, the lift is rated 2000 pounds (now 2200:3DSMILE:).

http://photos.imageevent.com/germanp...m_DSC06697.jpg
http://photos.imageevent.com/germanp...m_DSC06698.jpg

Now I finished up the door support - the plate was temporary now it is tubing like the backside surrounding the splash plate. The triangle is the center body mount.

http://photos.imageevent.com/germanp...m_DSC06700.jpg
http://photos.imageevent.com/germanp...m_DSC06699.jpg

More body mounts, top pic is the middle support of the hood. The center is the fascia support. The bottom one is the rear wheel housing support.

http://photos.imageevent.com/germanp...m_DSC06701.jpg
http://photos.imageevent.com/germanp...m_DSC06702.jpg
http://photos.imageevent.com/germanp...m_DSC06703.jpg

G-Pete 11-25-2011 07:46 AM

Safety drive shaft loop and cross brace. The brace is on a spot where you typically push your self out of the seat.

http://photos.imageevent.com/germanp...m_DSC06705.jpg
http://photos.imageevent.com/germanp...m_DSC06708.jpg

Cutting holes for the windshield and make sur it sits in the middle.

http://photos.imageevent.com/germanp...m_DSC06709.jpg
http://photos.imageevent.com/germanp...m_DSC06710.jpg

Driver side bracket.

http://photos.imageevent.com/germanp...m_DSC06714.jpg

Preparing the weld-in stocks - bolt them on and round them up and welded them in place. The windshield frame stands off 3/16 inch of the body - only the rubber seal touches.

http://photos.imageevent.com/germanp...m_DSC06716.jpg
http://photos.imageevent.com/germanp...m_DSC06717.jpg
http://photos.imageevent.com/germanp...m_DSC06719.jpg

The windshield has now an angle of 137 (43) degree of level ground.

http://photos.imageevent.com/germanp...m_DSC06722.jpg
http://photos.imageevent.com/germanp...m_DSC06723.jpg
http://photos.imageevent.com/germanp...m_DSC06724.jpg

G-Pete 11-25-2011 07:51 AM

Guys, it you have thoughts or any comment - please feel free and post. This thread turns slowly into a monologue...

Ozgur_Tan 11-25-2011 08:03 AM

don't worry, sometimes i feel the same when update my scratch builts thread.
i'm working on my #4 and thinking about windshield angle and i'll reduce 45deg to 43deg as you do.
regards
ozgur

*13* 11-25-2011 06:39 PM

I think the angle looks pretty good. Need to really get the car on the ground at it's resting stance, before you get too hung up on windshield angle.

RACERAL 11-25-2011 06:47 PM

N Freeking sane...
Keep up the good work. Your sir are amazing.

dallas_ 12-01-2011 01:52 PM

Quote:

Guys, it you have thoughts or any comment - please feel free and post. This thread turns slowly into a monologue...
Since you asked... :)

Question on your fuel cell. Looks like the placement will keep it out of the main rear crumple zone (and that is good), but mounted that high, what will it do to your roll center? Can Solid Works model that?

Quote:

Originally Posted by G-Pete (Post 1160713)


G-Pete 12-02-2011 07:16 AM

John, the roll center is calculated based on your suspension setup.

http://photos.imageevent.com/germanp...%20center1.jpg


Do you mean roll axis?

dallas_ 12-02-2011 08:00 AM

Quote:

Originally Posted by G-Pete (Post 1163929)
John, the roll center is calculated based on your suspension setup.

Do you mean roll axis?

Well, maybe I meant center of gravity.

I understand the roll axis to be the imaginary line connecting the roll centers at the front and the rear suspension points.

So maybe my question is, what impact is there on the suspension and handling by having the fuel tank higher or lower?


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