71 Charger Superbee Tribute/Restomod Build

[70chall440]

Most of them seem to do it it looks like the higher the psi & pump flow rate the less the issue .
I have tried drilling the return close to thread size with little effect on pedal return rate & why would the manufacturer supply with a certain size orifice only to have them drilled out.
The HB uses flow rate & pressure to return the pedal so by drilling out the return you are increasing the flow rate through the circuit They have a restriction in the return to stop air forming inside of the HB unit ,I notice a lot of people in the US use a large spring to return the pedal there is also a return spring between the master cylinder & hydroboost to assist pedal return which i have increased without effect . I have never had a problem getting parts its just the time & cost it takes to ship to Australia my mate goes to LA every few months & brings back a container load of usable old & newparts . I just have to make sure the pressure is not increased to the point that it damages the Borgensen box.

Gotcha.

Just for the record I am not advocating or suggesting one thing over the other, I have no basis of reference or experience other than installing 2 HB systems (one on the RR that is currently in Brisbane and the other on this Charger which isn't running yet).

I have not researched this but I have to think of it like this; obviously HB systems work as they are found on my vehicles so the question then is what is different between an OEM application and what we are trying to do on these conversions? I'd agree that would be the use of a different pump and box primarily but as noted some systems/builds do not have this problem so then why does theirs work?

I cannot say for certain but adding a large return spring under the dash seems to be a work around (not saying I would/will not resort to that). There has to be an explanation and thus a fix.

Perhaps it has to do with the HB unit itself?

 

[70chall440]

I got all the fluids into the car and then put the battery in, then hit the key... nothing.. so I started looking around and discovered that the ignition circuit breaker had tripped so I fixed that and tried again. This time it cranked however no power going to the ECU so once again It was at this time I discovered that my battery disconnect was not working. After removal and testing (it is good) I now have a wiring issue somewhere that I need to figure out... ahh the joys of hotrodding...

 

[ckessel]

As long as you don't end up with a "Car B Que", its all good.

 

[70chall440]

As long as you don't end up with a "Car B Que", its all good.

You got that right!!

 

[ckessel]

Or having the hottest car in the neighborhood.

 

[Bzzzz]

Awesome build on the 71 subscribed!

 

[70chall440]

Obviously I haven't posted much lately, I have been working on it a little.

Where I left off was that I had connected the power and was not getting any to the ECU. Well I have overcome that (somehow) but I was chasing an issue wherein my battery disconnect was not disconnecting.

I ran the ground from the radio to the battery disconnect and had it on the side connected straight to the battery thinking that it would provide constant ground and that it would not lose its settings. Well this somehow affected the disconnect in that it was showing a residual voltage of around 1V which I am still trying to figure out. As a related note the stereo works without the ground connected which is very strange.

So in my investigation about connections and power getting to where it needs to be I came to the conclusion that I needed to do something about the coil drivers. When you get the Terminator X Max harness the coil drivers connections are about 12" from the ECU. Since I mounted my ECU under the glove box that meant that the drivers needed to be mounted somewhere there is I was going to use the harness as is.

At the time of mounting I decided to merely stuff them above the harness behind the glove box loose because there was no convenient mounting location. Well after pulling them out as I was looking at the harness I did a little research and discovered that the get hot (guess I should have figured that since they are made of ceramic). Anyway this prompted me to make a mount for them and extend the harness. I elected to mount them on the passenger side kick panel area, so I made a mounting plate that elevates them thinking that it would help with heat dissipation. This plate will be painted body color to help camouflage it.

 

[70chall440]

Right now I am searching for a new 4 post lift for my shop, I need something because my 2 post is always occupied...

 

[70chall440]

Here is the completed coil driver mounting plate