3.2SS MFI twinplug....another one.

[BURN-BROS]

Salutations!

I thought I would share a build we are doing for a friend.

98x70.4
10.5/1 CP pistons
Stock rods w/ ARP rod bolts (balanced and resized)
MFI (72T modded for bigness)
Twinplug by yours truely
Supertec head studs
DC 40 on new blanks

You can see addition photos on Facebook.

https://www.facebook.com/BurnhamBros/media_set?set=a.864516650264122.1073741855.1000011 73857266&type=3













Cheers!

[BURN-BROS]

[BURN-BROS]

The Car is a 1980 Euro SC Backdated to a 73 RSR. The MFI system we chose is from a 1972 T as it will give the customer an engine bay that conforms to 72/73 .



Throttle bodies were rebuilt in-house. Housings were bored out for 40.5 throttle plates and 38mm intake ports. All hardware was plated, housings were pickled as close to factory as possible. New custom bushings were installed. upon completion, they were Flowbenched and ready to install.

[tharbert]

[Tippy]

Originally Posted by BURN-BROS

Awesome motor, but what is that V8 in the background?! That thing looks like a killer setup!

[BURN-BROS]

It's a New Boss block, Aluminum Cleveland heads, and a Boss 302 Hilborn setup. It's Mocked up checking port match. If things go according to plan, it should redline around 8200 rpm. It's slated to be dropped in a old mustang I have. More pics on Facebook about the build.

[BURN-BROS]

Fan refurbishment.

I sourced as early fan so that the Engine bay looked period. It was not in the best of shape, having moderate corrosion....but finding cherry parts is difficult.




Nasty!...but workable. I know that I will not be able to remove all signs of corrosion. After quite a bit of work, the fan is treated to the same process as my throttle bodies. The results maintain all the details that the fan had originally, and a little more "history" presevation than other methods. Not perfection, but industrially handsome.






Notice the tonal difference where a worker trimmed the flash from the parting line in the above pic.


Customer should be happy with the results.

[BURN-BROS]

Fan shroud fitment and mocking up the MFI. Amber Fan Shroud from Damon at Series 900.

[BURN-BROS]

[0396]

Nice, looking forward to additional updates.

[Harry998R]

Hi Aaron,

Very nice looking motor!!

I was wondering if the colouring on the throttle bodies is as they came from the factory? The throttle bodies on my 72T are the same colour and I thought that they may have just faded over the years.


Cheers,

Harry.

[BURN-BROS]

Thanks Harry,

The 72-73 Throttle bodies vary in finish from very light to almost black. I have old factory photos of the engines when new that I use for both paint markings and overall finish. Ultimately the finish will be influenced by the condition the throttle bodies are in. Same goes for any of the Magnesium parts.

Originally Posted by Harry998R

Hi Aaron,

Very nice looking motor!!

I was wondering if the colouring on the throttle bodies is as they came from the factory? The throttle bodies on my 72T are the same colour and I thought that they may have just faded over the years.


Cheers,

Harry.

[Hcarraro]

How did you "pickle" to get that nice dark grey surface? Looks fantastic.

Henry

[BURN-BROS]

Thanks Henry. That's a secret It took a long time for me to come up with it.

I can do a warmer gold finish as well as a cooler blue finish.

The Cool finish is the one in the pic and it is corrosion resistant. Meaning that it will not grow white fuzz just sitting out, but I wouldn't soak it in water.


Wired the alternator, installed updated crank bolt, Fan belt, shroud, cam feed lines and block offs.

[BURN-BROS]

Waiting for a few bits. Almost complete

[cnwayland]

That's a very fortunate friend! Beautiful work, especially enjoy the shroud color.

[Trackrash]

What heads are you using? Modded SC heads?

[BURN-BROS]

Originally Posted by Trackrash

What heads are you using? Modded SC heads?

Heads are big port 78/79. The CIS notch was welded up and drilled for the MFI injector.

[BURN-BROS]

Just finishing up a few things on the engine today, then it's off to be installed.

[KTL]

Originally Posted by BURN-BROS

Salutations!

Hi Aaron,

I had a question about how you approach the position of the injector fitting on the later head. Seems logical that the position is "centered" toward the middle/quadrant of the intake port. But is the angle just a matter of setting it such that it clears the throttle body?

At first I was thinking it could be angled just like a CIS or Motronic injector. But then I realized it would probably hit the MFI throttle bodies at such at angle.

Just trying to get a feel for how different the angle is from an MFI arrangement vs. the later CIS or Motronic.

Also, what are your thoughts on the CP pistons? Just curious how they differ from the JE usual suspect.

Thanks
Kevin