74 Challenger. No sheetmetal to be harmed and adding twins

[74chlngrTT5.9]

Thank you,
Always have to be making something. Might as well go fast also...

 

[74chlngrTT5.9]

Made the remaining pieces for the plenum and taped it together for the visual.

Then I realized that I did not have access to the mounting bolt holes on the bottom plate.
Added some bends and cut some more.

Blue tape is my friend

Now on to the baseplate. Transferred image and hole locations from a gasket.

Hacked out the center bore.

Cut out the outside recesses to eliminate some girth.

A few more relief cuts, bolt clearances on the baseplate and a few tack welds later it stands on its own.

The UPS man also brought more pieces for the cold half ducting.

More to come.
Mike.

 

[ECPJT]

Nice fab work!

 

[74chlngrTT5.9]

I am planning on attending an all Chrysler show in April so I am just doing a a pile of mock up things that need to be done. Car will remain drive able until after then.
Got in some new piping and armed with a vision began to cut and tape for the visual.
I tucked the throttle body into carb linkage. Position wise, the height and left/right positioning is fairly close. It is too far back though. Good enough for mock up.
Started with a 3" 90deg bend and split it down the middle and stretched it out and will weld a filler plate in the void. I plan on making a "clamp plate that compresses an o-ring to seal it properly and also provide rigidity to the sealing area..

The merge in lower portion is two 2-1/2 primaries that when blend together measure the same as a 3" which is what continues toward the TB.

The blending pieces that will mount to the upper intercoolers are 1-3/4 diameter 90 deg bends that are split in half and spread out to create an oval. They also will taper slightly towards each other and will end up blending smoothly into the 2-1/2 primary pipes.
I will have a silicone coupler on the piece between intercoolers and also on the 3" piece close to the TB.

Also made (cleaning up details for car show) the other matching fan bracket.

Matching left and right now.

Also making some temporary mounting brackets for the LS coils. Temporary because with factory manifolds they will be mounted up high next to the valve covers. When turbo headers are on they come up high and the coils will then mount low. EFI will be dialed in first then the snails added.

Yes they are filthy. All will be cleaned up and brackets painted after mock up is complete.
Mike.

 

[rbbruno3]

Boy Mike , that is a lot of work. Will be nice when its all done

 

[03HDFB]

Love it.....Some Talent here for sure!

 

[74chlngrTT5.9]

Boy Mike , that is a lot of work. Will be nice when its all done

Yes and it has been. Now that I am getting closer to the vision it is turning to an obsession.

Love it.....Some Talent here for sure!

Thanks. Getting ready for lots of quality tig time. Which reminds me I have to fill my argon tank.

 

[moparleo]

Great progress there. Keep it up.

 

[74chlngrTT5.9]

I have more pieces to add to the discard pile. Made these upper plates that were to clamp onto the o-ringed flange on intercoolers. Problem is that I did not leave enough room on them and/or the lower flange to allow bolting them together. Been trying to figure out an alternate method for them. but decided to move on to another version.

Made new plates that are longer. These allow for bolt holes and the mounting of a thick piece of angle steel that was tapped and will clamp to the underside of the IC flange. Piece clamped in is just for visual. It is the piece that will be discarded.

Cleaned up and painted all the upper brackets for the radiator and fan mounting. Not shown but I also made support plates for the underside of the plastic fan shroud where it bolts to the mounting bracket. You can see the mounted top plates also. I used button head screws and flush mounted them because I needed to clear the upper rad bracket on the drivers side.

Cleaned up all the the coils and associated hardware. Finished and painted the mounting brackets.

Mike

 

[74chlngrTT5.9]

Car has been together enough to drive for awhile now. I did not want to start another install of something and not finish in time for a local Chrysler show so I have only worked on the little things. (PS: Sorry I missed you Leo, and who else may have been there...)
Mounted the cleaned up coils. As with many other items these are temporary. They mount up high due the the manifolds going low.
End result they will mount low when the turbo headers are on going high.

With my issue of the fans not "controlling" properly, I added some (more temporary) relays to my relocated wiring block. Of course it looked like ****, so I made a cover to hide it.

Fully welded up the upper portion of my plenum and milled the bottom flat. All ready now to weld on the the base plate. Gonna have to break out the torch and do a lot of heating of that thick plate first.

Gutted a Mopar distributor and also a Ford 302 cam sensor and am turning up a hybrid version of the two.

And Last but not least I modified my hood emblems. I designed them to mimic the style of the originals. Size, font and slant. When I finished them they were left thicker than the originals.
Kept telling myself that I was being anal and they would be fine. Nope, had to fix...

Clamped them down on a plate and machined what I could reach. then relocated the clamps and cut the rest.
They are now the same thickness as the old and I am at one with the world again...

I smoothed some of the edges. Painted them a low gloss black and sanded the faces to reveal the aluminum and then clear coated them.
Overall very happy with how they have come out.
Now all I need is to have the turbos on that I am advertising for...

Mike.

 

[moparleo]

Lookin good. There is still " Mopars in May " in Riverside, May 17 at the CSFD California School For the Deaf.

 

[mmissile]

The emblems speak of the workmanship. Nice.

 

[03HDFB]

Frcken Nice Work!!! Awesome thread!!

 

[74chlngrTT5.9]

Lookin good. There is still " Mopars in May " in Riverside, May 17 at the CSFD California School For the Deaf.

Was planning to attend but family first. Daughter is in basketball tournament. Jr high (13 and 5' 10") but playing at high school level. Great to watch and only have one so she gets all our attention.

The emblems speak of the workmanship. Nice.

Thank you.
Sometimes my retentive nature annoys even me but cannot argue the end results.

Frcken Nice Work!!! Awesome thread!!

Thanks X2. I say the same about the many other builds I watch.

Mike

 

[moparleo]

Your right, family first always. She sounds like me in that I was 6' tall at 13, 170 lbs. Was mistaken for teachers from behind a lot. The coaches wanted to recruit me for basketball and football. Couldn't shoot baskets and had big, flat feet and couldn't run very fast. I never understood the football thing about hurting yourself intentionally. I did wrestle in High school though. One on one, was where its at. I soon lost interest anyway after my first year of auto shop. Changed for life. First engine build was a 354 Chrysler Firepower Hemi. First engine swap was a 57, 392 Hemi into a 1955 Ford F-100.

Orange County Raceway back in 1975. Lost to a 340 Dart.

 

[74chlngrTT5.9]

View attachment 20203Your right, family first always. She sounds like me in that I was 6' tall at 13, 170 lbs. Was mistaken for teachers from behind a lot. The coaches wanted to recruit me for basketball and football. Couldn't shoot baskets and had big, flat feet and couldn't run very fast. I never understood the football thing about hurting yourself intentionally. I did wrestle in High school though. One on one, was where its at. I soon lost interest anyway after my first year of auto shop. Changed for life. First engine build was a 354 Chrysler Firepower Hemi. First engine swap was a 57, 392 Hemi into a 1955 Ford F-100.

Orange County Raceway back in 1975. Lost to a 340 Dart.

Haha. My departure from sports was girls which led to cars to get girls...
first car was a 69 Rambler which was not cool no matter how nice it was. So I moved "up" to a Pinto. With some compression and port work I had it in the low 15s. This was also at OCIR back in the late 70s and early 80s. Even cut the roof of my Pinto to have a convertible. That is the way I ran it there on Wednesday nights. I will try and post up a picture of it.
The 340 Dart crowd is who I always hung with and is the reason for my Mopar addiction.

 

[74chlngrTT5.9]

Picture of old picture of chopped off top.
Old times here...

 

[moparleo]

I married my high school sweetheart . When I first saw her, she was burning rubber in a 68 Dart. She wore a Billy Jack hat and had Led Zep on the 8 track. Been married for 43 years now, went steady for 2 years before that. She still breaks motor mounts on whatever she drives.

 

[74chlngrTT5.9]

I married my high school sweetheart . When I first saw her, she was burning rubber in a 68 Dart. She wore a Billy Jack hat and had Led Zep on the 8 track. Been married for 43 years now, went steady for 2 years before that. She still breaks motor mounts on whatever she drives.

Not quite my HS but my wife was still in HS when we started dating. 3 years then marriage of 27 years now.
Funny you said this because mine drove my Dakota R/T to her work the other day and lit them up while leaving to show some coworkers she knows how to handle some power...

Finished up making the hybrid housing

Cut off original shaft and upper piece from the Ford unit.

Welded together

And assembled.

Now with the car show behind me I could not resist tearing back into it.
Tack welded the plenum to the base and set it on the motor.

Of course had to put the duct work on for a visual.

Now working on adapting an Explorer throttle cable. Will mill the cable plug to fit into the square hole in the firewall. Going to use the square pipe shown to make a slotted bracket that will lock it in place from the inside. Sort of drawn up design with felt marker. TB end (not shown) has the correct barrel shape and will need to have a bracket made to hold cable.

Mike.

 

[mmissile]

That's looking better/more complete in every picture. You have an amazing amount of fabbing going on.