71 Charger Superbee Tribute/Restomod Build

[Austin Charger]

You sure cannot beat those "shotgun" tips. Great image.

 

[70chall440]

You sure cannot beat those "shotgun" tips. Great image.

I agree, but in stock form they hang too low and stick out too much IMO.

 

[ckessel]

Me hang lo.

 

[70chall440]

Me hang lo.

More like Tiphanglo....

 

[70chall440]

Got a couple more things done on the car. First item is a small issue/task but I wanted to get the front spoiler installed. I discovered that when you ordered a front spoiler you lost the front bumperettes, well I like both so I installed the spoiler to suit.

 

[70chall440]

The next BIG task was to make the adapter for the air cleaner. This was a bit of an endeavor but I think I got it done or actually pretty close, I still need to finish up the adapter by adding some grub screws to hold it to the TB and a bar which the AC base will be screwed to.

So a couple of pieces of information. My engine is a 2019 Challenger crate motor. The TB is different than what you would find on a truck, I know this because I ordered a cheap replacement TB to use for mock up and I selected one for a newer Ram. The biggest issue is distance between the air horn and the throttle blade motor housing. On the cars (I am assuming a Charger, 300, etc. would be the same as a Challenger) have more space available which is pretty handy BUT it might not be an issue in the long run because you have to "notch" the AC base to be able to sit down flat. Also the car TBs are shorter than the truck one.

 

[70chall440]

As you can see on the pic above written on the anvil is 3.480 which is what I wanted to cut the adapter to, ended up cutting it to 3.485 however the actual dimension of the horn is 3.450.

The air cleaner is 5" around and I included a little lip as well. I used 6061 T651 aluminum plate that was 1" x 6" (actually bought a plate that was 6 x 12 and cut it in half).

I also cut the 2 notches in the back of the adapter that allow the 2 indexing tabs inside of the AC base to ride in to help keep the AC pointing forward.

I put it all back on to the engine just to see and I "think" it will just clear. I do not think I will be able to use the fiberglass/plastic under hood box and seal but we will see.

For those interested, I used an annular cutter to punch a 1" hole in the center of the plate, I then used a boring bar to open up that hole to the 3.485". I then put the plate in the lathe and cut the outside down. It all made one hell of a mess...

 

[HEMIB]

As you can see on the pic above written on the anvil is 3.480 which is what I wanted to cut the adapter to, ended up cutting it to 3.485 however the actual dimension of the horn is 3.450.

The air cleaner is 5" around and I included a little lip as well. I used 6061 T651 aluminum plate that was 1" x 6" (actually bought a plate that was 6 x 12 and cut it in half).

I also cut the 2 notches in the back of the adapter that allow the 2 indexing tabs inside of the AC base to ride in to help keep the AC pointing forward.

I put it all back on to the engine just to see and I "think" it will just clear. I do not think I will be able to use the fiberglass/plastic under hood box and seal but we will see.

For those interested, I used an annular cutter to punch a 1" hole in the center of the plate, I then used a boring bar to open up that hole to the 3.485". I then put the plate in the lathe and cut the outside down. It all made one hell of a mess...


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What power steering pump did you use with the hydroboost i used the holley unit 800psi & had trouble getting the pedal to return tried all the trick's like opening up the return line its like the pump hasn't got enough pressure to return the pedal without putting a huge spring on the pedal shaft.

 

[70chall440]

What power steering pump did you use with the hydroboost i used the holley unit 800psi & had trouble getting the pedal to return tried all the trick's like opening up the return line its like the pump hasn't got enough pressure to return the pedal without putting a huge spring on the pedal shaft.

I am using a LS pump, no idea if it is going to work or not. I am also running a Borgenson box. The Hydroboost set up is my own concoction, I bought a HB from Rock auto (Ram truck) and made the rest. No idea if any of it is going to work.

 

[HEMIB]

I am using a LS pump, no idea if it is going to work or not. I am also running a Borgenson box. The Hydroboost set up is my own concoction, I bought a HB from Rock auto (Ram truck) and made the rest. No idea if any of it is going to work.

Same here new Ram booster & Borgenson box could be the 800 psi Holley pump i have Saginaw pumps on my Challenger's & they have the same problem but only slight,from what i can find the pedal return problem in very common with no real fix apart from the helper spring return

I am using a LS pump, no idea if it is going to work or not. I am also running a Borgenson box. The Hydroboost set up is my own concoction, I bought a HB from Rock auto (Ram truck) and made the rest. No idea if any of it is going to work.

 

[70chall440]

Same here new Ram booster & Borgenson box could be the 800 psi Holley pump i have Saginaw pumps on my Challenger's & they have the same problem but only slight,from what i can find the pedal return problem in very common with no real fix apart from the helper spring return

I will see what happens when I get this thing going. I did another build with a 472 Hemi in a 70 RR and put in the same box but a HB kit. In that instance we used a stock PS pump I think and didn't have any pedal issue. I need to look into that and confirm.

 

[70chall440]

Same here new Ram booster & Borgenson box could be the 800 psi Holley pump i have Saginaw pumps on my Challenger's & they have the same problem but only slight,from what i can find the pedal return problem in very common with no real fix apart from the helper spring return

@HEMIB Does your PS pump have 2 returns? I talked to my buddy with the 70RR (who is in Brisbane BTW) and he says he does not have any issue with the pedal at all.

 

[HEMIB]

Do you know what pump he is using I have tried with my return completely open from the booster back to the reservoir so there is no restriction if that worked i would make a second return on the plastic reservoir maybe the LS1 pump has a higher pressure & flow rate mine is 800 psi i found that the hydro boost likes around 1300 psi minimum i will measure the actual pressure with a gauge would like to get to the bottom of this has been occurring with about 60% of the builds i think Kern Dog had a similar problem. Pump is new Hydroboost is new Dodge RAM 1500 pressure lines are Earl, s with high flow fittings ,pedal needle bearing free movement .

 

[70chall440]

Do you know what pump he is using I have tried with my return completely open from the booster back to the reservoir so there is no restriction if that worked i would make a second return on the plastic reservoir maybe the LS1 pump has a higher pressure & flow rate mine is 800 psi i found that the hydro boost likes around 1300 psi minimum i will measure the actual pressure with a gauge would like to get to the bottom of this has been occurring with about 60% of the builds i think Kern Dog had a similar problem. Pump is new Hydroboost is new Dodge RAM 1500 pressure lines are Earl, s with high flow fittings ,pedal needle bearing free movement .

He is using a Saginaw pump that has 2 returns which I believe was from a GM product. You can only see one of the returns in the pic (the silver fitting) but the other is there as well.

 

[70chall440]

My buddy has confirmed that is a Saginaw pump from Borgenson that is from a GM product. He added the following

"someone did say to check the return barb on the HB as some have a small hole through them which would restrict the flow of an open ended hose"

 

[HEMIB]

My buddy has confirmed that is a Saginaw pump from Borgenson that is from a GM product. He added the following

"someone did say to check the return barb on the HB as some have a small hole through them which would restrict the flow of an open ended hose"

Thanks think those pumps are around 1350 psi i have them on my 340 engines yes i have tried drilling the return orifice a couple of sizes bigger without any change

 

[HEMIB]

My buddy has confirmed that is a Saginaw pump from Borgenson that is from a GM product. He added the following

"someone did say to check the return barb on the HB as some have a small hole through them which would restrict the flow of an open ended hose"

Found this will have to find a 1500 pump at the right price
1500 series 11032 kPa (1615 ± 65 psi) 3. 1 - 3. 5

2500 & 3500

series

12400 kPa (1800 ± 50 psi) 3. 5 - 4. 0

 

[70chall440]

Found this will have to find a 1500 pump at the right price
1500 series 11032 kPa (1615 ± 65 psi) 3. 1 - 3. 5

2500 & 3500

series

12400 kPa (1800 ± 50 psi) 3. 5 - 4. 0

So you are thinking that you need more power/pressure?

 

[70chall440]

@HEMIB I just googled "hydroboost pedal not returning" and what I get back is that there is a restriction in the return line. I am sure you have already gone down this path and given where you are I am sure this is super frustrating because you cannot "just get parts" like we do here in the US.

 

[HEMIB]

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.