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Someone has reported my account on Github so it's no longer visible. I have no idea what the problem is; please stand by.

UPDATE 30 Jan.: My account is visible again. Github says it was...

I tried saving the top-level assembly as a STEP file but it's 181 MB. Github only allows 100 MB files without using special tools. I plan on uploading STEP versions of every part & assembly, but that...

That must be the compressed size. When you unzip it to your computer I expect it will be larger. My copy on my computer currently sits at 1.45 GB.

-JJ

I really hope this will be an collaborative project, so it's better to "fork" the project than "clone" or "download" it.

A good explanation is here: ...

The COMPLETE design of the Ludemann Engineering Formula 1000 race car is now available royalty-free and open-source at https://github.com/LudemannEngineering/Formula-1000-Race-Car . 1.5 gigabytes of...

Yes, the mating face of the wheel nut is a flattened conical shape specifically to mate with the chamfer on the wheel and center the wheel on the axle. We did have a problem with the wheel nuts...

I just had another thought regarding your project. You may be set on centerlock hubs to get that Formula 1 look, but you might want to consider just using the Civic hubs with the standard 4 bolts....

Congratulations on getting started! The way I finished was by constantly repeating to myself, "If I do a little bit every day, it HAS to get finished someday." I also found a useful way to trick my...

As a couple of the posters have guessed, there is a laser-cut flat aluminum spacer between the wheel hub and the wheel mounting face, with holes just big enough to clear the hex circles on the drive...

If you're really interested in using the Suzuki ECU protocol, here's a file full of notes I gathered from various places on the internet while doing the same thing. I was successful. If you're using...

Not sure about your engine, but my GSX-R1000 uses an AN6 to 5/16" female quick disconnect like this:
...

As someone who just drove a Formula 1000 car for the first time, I can tell you nothing I've ever driven even came close to preparing me for it. And I've driven the Silver State Classic in a...

It was great to be able to watch the full race video on a big-screen TV halfway around the world. So cool to see the guys I know only through ApexSpeed actually racing.

Any word on what caused the...

Is the 95cm maximum width for the diffuser the inside dimension or the outside dimension? It only really makes sense as an inside dimension, but I thought I'd better make sure since the rear wing...

Hi all,

I've been trying for days to find a source for springs for my F1000. Summit Racing has them but won't accept my credit card or Paypal. I can use Paypal for shipping to Thailand only on...

After five long years of work, my car finally made it to the track!

On Tuesday, August 11 we did a shared-track day at Bira International Circuit in Pattaya, Thailand. The trailer's not finished,...

I finally got caught up in my blogging:

Laying up a Carbon-Fiber Honeycomb Front Impact Attenuator
Building the Undertray/Floor
Custom Molding the Seat

And I guess you guys already saw this...

Good information. In order to change it I'll have to go to a more conventional design where the rear sprocket is moved back and forth to take up slack. In my design I need custom-length axle...

I've been keeping my head down just finishing the car, but now it's time to get caught up on blog posting. New posts include:

Video Update 5 Assembly
Video Update 6 More Assembly
Video Update 7...

Now on to new business...

What is considered the current hot setup in wheel and tire dimensions? I have 8x13 front and 10x13 rear, but I've heard the rears won't get hot enough and (independent of...

Thanks for all the responses, everybody! I had not seen that rule change that allows thinner chrome-moly bracing.

As I read it, the main roll hoop forward braces must still be 1" x 0.080" all the...

Your photo is just a little too low-res for me to read the labels. Is that a plot of displacement? What are the loads and maximum displacements? I think something may be wrong if you're getting...

It's in FB Preparation Rules 2.C.2:

"The material used for the chassis braces in this area shall be at least equivalent to the roll hoop brace material."
So the answer is "all of them, Katie."...

A while ago I recall seeing a comment on ApexSpeed that said all the frame tubes on the cockpit sides must be a minimum of 1" x 0.080". I remember it referred to a section of the rules other than...

Right now it's got 17 front, 50 rear. I have 16, 15, and 14 front in stock, but have to order blanks from England if I want to change the rear. I went with 50 on the rear as that's the biggest it'll...

Thanks to lots of people here on ApexSpeed, I have good news to report. It runs!

First, here's a fabrication video that might be of some interest:...

As always, your advice is worth its weight in gold. Most things are easier in Thailand, but some things are way harder. Like finding an oil pressure gauge, for instance... I had no idea where to even...

Thanks Glenn & Wren for the responses.

I removed the spark plugs, then removed the hose from the outlet side of the oil cooler. I cranked the engine and watched bubbles come up out of the cooler,...

I'm ready to try to fire up the engine! 2007/8 GSX-R1000 that's been stored for at least three years... Before I do, what am I forgetting? Any horror stories about first starts, check lists, whatever...

I got the model directly from Lee, and everything imported correctly. There must be a problem with the GrabCad model. Solidworks has a scale function, but it may only work on parts.

-Jim

Thanks Glenn. I'll have to do that next time the engine is out of the car. First goal is to just get the thing rolling under its own power. I figure there will be many revisions after that.

-Jim

Fantastic! I wasn't looking forward to having to replace the pan again, since it would have taken a couple of weeks and well over $1000 with shipping and duties. Progress is being made in a forward...

Yes, my current (Gen 2) pan has the forward facing wall of the trap door box moved forward. Yes, the pickup I have for my Gen 2 pan faces forward. In the attached photo, forward is to the left. So...

Well, isn't that special. I'm glad we went through this exercise. So it appears there are three generations of oil pan. Gen. 1 is shown in the first photo below, and has a short oil pickup box at the...

Ah, I see. I was thinking they'd come up with something better than the Suzuki factory engineers, which would be impressive.

Anyway, I think I've got it figured out. Rather than posting a photo, I...

Thanks a lot for the quick reply. It's after midnight here, but when I get back out there tomorrow I'll see if I can figure it out. Should be easy with your explanation. If I correctly understand...

I have a GSX-R1000 wet-sump oil pan I bought through George Dean, and there doesn't seem to be a provision for an oil pressure relief valve. Is it just deleted, or is there something I don't...

Don't worry, I'm not going to quit. I do get slow sometimes, though...

The tailstock bearings have never been great, so I'd say they're just as crappy now as they were before. Now that you've...

Thank you very much. The pedal assembly is probably a little over the top, but I decided to see how far I could go with the tools available to me. I'm happy with the result.

-Jim

Thank you, on both counts. For craftsmanship, I rely on a principle I read a long time ago on another thread about home-built cars: If it bothers me, I fix it.

-Jim

Hi all,

I've been quiet for a while but I've been working continuously. I finally got caught up on updates to my blog. This was a daunting task, which partly explains why I put it off for so long:...

> Your lift plates incorporate a series of pickup holes that allow one to suspend the GSXR at > several different angles in side elevation. My curiosity implores me to ask:
> Could you add side...

When I saw those photos posted I said to myself "These guys are going to tear this up". But I'm happy to say you've exceeded my expectations. LMAO at the comments...

I hope no one ever says...

Wow! I mean, WOW! That is some amazing work. I'm guessing this is not the first car you've built. I'd love to see some work-in-progress pics of the fiberglass pieces. How did you make so many complex...

I'm going to be looking into that soon myself. The obvious thing to do is to copy the stock design's primary diameter and length, the diameter and length after the 4:2, and the diameter after the...

It's coming along well. It's a roller, with engine, brakes, transmission, side panels, radiator, oil cooler and steering all in. Or at least they've all been in at one point. What's left is the gas...

OK, great. The other ones are easy to find on Ebay. So bikebandit.com is the hot setup for mailorder OEM parts, I take it? Ordering is getting easier as the mailman is now a family friend, and the...

Does everybody just use the stock gear shift link arm? That's the 2-3" arm with the internal spline that slips onto the gear shift shaft on the left side of the engine. I can't find one anywhere. I...

I was thinking the double skin would be great for thermal insulation of the fuel tank (I could even fill the hollow with shredded fiberglass or something) and as ballistic protection for the fuel...

I was just rereading the GCR and was thinking about this:

9.4.5.E.3: Roll cage or chassis design shall prevent engine intrusion into the driver compartment.

What I've designed so far is shown...