Messages

1

Build Pictures / Re: HM2017 Build

« on: September 09, 2023, 03:42:07 PM »

I got kind of lucky changing the angle of the O2 sensor.  I was able to weld the new bung on top of the original one, after a lot of grinding.  I’ll hit it with some high temp paint eventually.  The cable is just resting against the bottom of the foot box but I may still dimple the foot box there to provide a little more room.  And of course the body will need a cutout to accommodate the sensor also.

2

Build Pictures / Re: HM2017 Build

« on: September 05, 2023, 09:46:30 PM »

Thanks Paul.  That’s exactly what I was looking for.

3

Build Pictures / Re: HM2017 Build

« on: September 05, 2023, 09:48:18 AM »

Paul,
Thanks for your reply.  I do realize my sensor is at the wrong angle.  The side pipe came with the sensor bung already installed and I was hoping I could getaway with it as is.  I realize now I'll need to revisit the installation.  Can you post a picture of your actual sensor installation?  I'd like to see exactly how you handled the bung installation considering the angles involved.
Thanks, Jeff

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Build Pictures / Re: HM2017 Build

« on: September 04, 2023, 04:36:24 PM »

More pictures.

5

Build Pictures / Re: HM2017 Build

« on: September 04, 2023, 04:35:15 PM »

I’m finally done with the initial wiring less a couple items.  I’m pretty confident I got it right but I haven’t hooked up the battery yet.  I’ll save that for later.  When I started the wiring I envisioned the wires being neat and tidy behind the dash.  Far from it.  There’s a lot of wire back there.  I’m glad I made the dash removable because trying to do any troubleshooting later from under the dash would be impossible.  I followed the example of some others and put a couple small welds between the upper frame and frame.  This will ensure good grounding between the two.  I got the spark plug wires fabricated and installed.  The EFI needs an O2 sensor so I got that installed also.  I also added a USB port under the dash.  Might need that someday.  After I get back from vacation I can move on to the radiator and the remaining items required to get it running.  Getting closer.

6

Build Pictures / Re: HM2017 Build

« on: August 11, 2023, 10:52:51 PM »

It has been quiet on the forum lately.  I’ve been installing the wiring harness in my car for the last week.  There’s a lot of wires for a simple car.  The EFI adds another harness and another layer of complexity.  I was able to route all the wires and harnesses through one hole in the transmission tunnel at the back of the engine.  I spent some time trying to hide the EFI wires on the engine.  I don’t think it’ll look too cluttered when I get done.  Slowly making progress.

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Build Pictures / Re: HM2017 Build

« on: August 03, 2023, 09:23:45 PM »

Ben, the center to center distance of the tubes at the top is 5”.

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Build Pictures / Re: HM2017 Build

« on: August 03, 2023, 06:10:50 PM »

Let me try that again.

9

Build Pictures / Re: HM2017 Build

« on: August 03, 2023, 06:08:35 PM »

Here's the dimensions for the holes in the tunnel for the support tubes.  Hopefully you can make sense of them.  I tried to make the support tubes mimic the originals the best I could.

10

Build Pictures / Re: HM2017 Build

« on: August 02, 2023, 09:21:22 PM »

Ben, I’ll take some measurements and pictures tomorrow.

11

Build Pictures / Re: HM2017 Build

« on: August 01, 2023, 07:49:26 PM »

I finally installed the trunk liner and cockpit tub for the last time.  I used 10-32 screws to secure them to the frame.  I figured with screws I could remove the pieces if I ever needed to plus I liked that I could control the clamping force with the screws.  The front horizontal panel of the trunk liner also got screwed to the cockpit tub which created a strong shelf for the battery.

I installed Kilmat sound deadener to the firewall area of the cockpit tub before installing the upper frame.  This stuff should cut down a little on the sound and heat getting into the cockpit.  It takes some effort to press the Kilmat onto the surface so I’ll do more later when I have the energy.

12

Build Pictures / Re: HM2017 Build

« on: July 24, 2023, 07:09:22 PM »

I mentioned before that I was having brake fluid leaks at the front caliper hose fittings.  It turns out that my calipers should have had 1/8” NPT threads instead of the 3/8-24 threads it had according to the spec sheet.  I talked with Wilwood tech support and they said the caliper never came with a thread for a banjo bolt which makes sense but doesn’t explain why mine did.  I wasn’t able to get the banjo bolt to stop leaking so I retapped the hole for 1/8” NPT.  That solved the leaking problem.

I decided to go with an Optima battery.  I installed it using some brackets I bought from optimatrays.com.

Also got the fuel tank vent installed.

Getting close to permanently installing the cockpit tub.

13

Build Pictures / Re: HM2017 Build

« on: July 16, 2023, 08:51:03 PM »

Thanks.  I’ve already radiused the throttle pedal.  I was planning on installing Kilmat sound deadening mat inside the cockpit tub.  You’re right, I should install it when the tub is easily accessible.

14

Build Pictures / Re: HM2017 Build

« on: July 15, 2023, 03:56:39 PM »

Today I installed heat barrier and the aluminum on the firewall.  That took some work.  The heat barrier is adhesive backed Thermo-Tec brand I bought on Amazon.  For the aluminum, I sanded it to remove scratches and sprayed it with Sharkhide metal protectant.  Hopefully the finish holds up.

A couple of the bolts for the throttle pedal corner bracket interfere with each other and one interferes with the throttle pedal.  To get around this, I countersunk the front holes and installed flat head bolts from the inside.  That should fix the interference.

I was hoping to permanently install the cockpit tub this weekend but I discovered a small brake fluid leak towards the rear and it will be easier to troubleshoot from above than from below.  Getting close though.

15

Build Pictures / Re: HM2017 Build

« on: July 06, 2023, 09:29:37 PM »

Greg, I read the same advice from Wilwood but I like Dot 5 fluid for the obvious reason that it doesn’t dissolve paint plus I’ve used it in my other project cars and never had any braking problems during spirited driving.