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MuscleTang mod project thread (1971 M-Mach 1)
#1
So I finally decided to start my own mod project thread. I purchased my 1971 M-code Mach 1 in September and since then I have done a lot of research, exploration disassembly, minor mods and tuning. The car runs well and is in generally great shape. This is a partial list of what I have done so far:
-Tune up: replace plugs, timing
-Carb tuning: idle, mixture, float level, fast-idle adjustment, choke adjustment. I have gone through many iterations of these adjustments.
-Eliminated some vacuum lines: I just simplified the current vacuum line system. The carb is a Holley aftermarket. Whoever installed it plugged a vacuum line into the choke vent port, which was also connected to the manifold port through bunch of tees. Based on my research the vent port should be left open and should not be connected to an external vacuum. This setup added couple extra hoses and fittings that were eliminated.
-Double Seafoam treatment: lots of smoke. Idle improved slightly. Oil pressure went up.
-All the above items improved vacuum readings from 12 to 14.
-Replaced A/C fast-idle solenoid.
-Replaced starter motor wiring: it was bare wire near the motor connection - dangerous.
-New battery.
-Replaced broken axle vent hose.
-Added custom "red neck" temp radiator overflow tank. It got tired of the constant coolant leak on my garage after a ride.
-Replaced 160 thermostat for 195 (Napa THM 297).
-Double checked axle ratio. From PO I thought it was 2.75, but it came out to 3.00, per car specs.
-Added 3-point belts in front.
-Clean, fixed and replaced miscellaneous electrical connectors.
-Added engine-to-firewall ground wire and voltage regulator-to-engine ground wire.
-Adjusted hood pin lock height.

Now I am getting ready for a longer more in depth modifications that I am planning over the winter. I will post my list with options soon so I can hear your comments. Even though the car runs great I want to modernize it, make it safer, and heck.... I did not buy the car to just ride it. I want to tinker with it and modify it. It will be my own version of "soft" resto-mod including 4-wheel disc brakes, improved steering, headers, ignition, modernize gauges, subframe connectors, explore the inner guts of engine and the interior floor pans. Keep tuned for the list.

PS: my 2 1/2 y/o son started calling the car the "MuscleTang". I love it! from now on that's the name.


        [Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
4-wheel disc brakes
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#2
This sounds like a great project. I love when people try to do something different with these old cars. Can't wait to follow your project and what you are going to do about it. So far your ideas sounds great! Any idea what kind of parts you are going to use for brakes, steering, gauges and so?

And what a perfect name for the car, that must be so cool to tell your son when he grows up that he named the car "MuscleTang" when he was 2 1/2 year old.

Good luck with the project and please keep us posted, I'm ready to follow this Smile
Daniel thumb

Pro-Touring 1973 Mustang named ''Creator'' ... Tongue
Under construction!!
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#3
protouringstang73;201864 Wrote:This sounds like a great project. I love when people try to do something different with these old cars. Can't wait to follow your project and what you are going to do about it. So far your ideas sounds great! Any idea what kind of parts you are going to use for brakes, steering, gauges and so?
Brakes: Not 100% decided on package. Here is a thread I started in regards to the brakes, http://www.7173mustangs.com/thread-disc-...-modernize
I may not decide completely until I tear apart the brakes and know the condition of the whole system.
Steering: probably have it rebuilt and revalved at Lee's
Gauges: will keep factory, but modernizing the tach, clock and changing modifying ampmeter to voltmeter at http://www.rccinnovations.com/

protouringstang73;201864 Wrote:And what a perfect name for the car, that must be so cool to tell your son when he grows up that he named the car "MuscleTang" when he was 2 1/2 year old.
Smile



In regards to my engine, here is what I know:
-Obviously a 351C-4V
-Working Ram Air package
-Holley Street Avenger 670
-Cam (per sheet from PO): Crane Cams 272H10 (http://www.cranecams.com/product/cart.ph...il&p=23839)
-Intake manifold: unknown. It says "351-4V" on the rear half, but it does not appear like the stock one. I may know more after an exploratory tear down this winter.
-All else appears pretty stock.


Attached Files Thumbnail(s)
       


        [Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
4-wheel disc brakes
  Reply
#4
Sounds like some cool upgrades, I like the idea with keeping everything in stock look but with upgraded parts.. Smile Hope to see some updates soon.. I am building a car from scratch right now and are not moving fast forward at all, damn it takes some time.. Smile
Daniel thumb

Pro-Touring 1973 Mustang named ''Creator'' ... Tongue
Under construction!!
  Reply
#5
I'm in a similar boat but behind you in progress. Haha good guide lines and ideas to keep moving forward. Thanks and keep us posted
  Reply
#6
After doing a lot of research and reading a lot of threads here is my dream list of additions for the winter. I am adding links to those options I am still undecided, but budget may not allow me to go with the best option. I know there will be things that break or that I have forgotten that I will need to get later. Hopefully I will be able to limit those unforeseen issues. Please let me know if you have any comments, suggestions or experiences that you want to share about the products in my list.

Engine
-Carburator Kit for Street Avenger 670
http://www.summitracing.com/parts/hly-37...MgodbFMAjg
-Oil pan gasket
http://www.summitracing.com/parts/mil-40.../make/ford
-Hooker Competition Headers: http://www.summitracing.com/parts/hok-69...el/mustang
-Header gasket
Aluminum?: http://www.summitracing.com/parts/php-66.../make/ford
-Exhaust: 2.5" at muffler shop, undecided on mufflers
-Distributor: Pertronix III (I am aware with issues with tach, but I am also upgrading the tach)
-Coil: Pertronix Flame Thrower III
-Wires: ACCEL 5040B 8mm (I like the longer coil wire)
http://www.summitracing.com/parts/acc-5040b
-PCV valve

Exterior + Chassis
-Subframe connectors:
http://www.tinmanfabrication.com/index.c.../prd58.htm

Interior
-Steering wheel & kit: Lecarra Mark 4
http://www.summitracing.com/parts/lac-44201/overview/
-Led bulbs for instruments and interior lighting:
http://www.superbrightleds.com
-Dynacorn floor pans (both):
http://www.cjponyparts.com/dynacorn-full...p/3648N-V/


Drivetrain
-Axle 3rd member gasket: Fel Pro
-May have to change seals/bearings when installing disc brake conversion kit

Brakes/Suspension/Steering
-Rear brake conversion kit:
http://www.cjponyparts.com/rear-disc-bra...3/p/DBR21/
-Front brake upgrade:
Wilwood WIL-140-13477 from http://www.mustangdepot.com/OnLineCatalo...ilwood.htm
-Master cylinder:
http://www.summitracing.com/parts/SDK-C7ZZ21404WDB
-Proportional valve:
http://www.summitracing.com/parts/SUM-G3905
-Steering rod + link kit:
part SS-08515 from http://www.mustangdepot.com/OnLineCatalo...ng-kit.htm
-Suspension arms (lower ball joint + upper arms):
Moog #CK8123: http://www.summitracing.com/parts/MOG-CK8123
Moog #K8142 (ball joint), http://www.summitracing.com/parts/mog-k8142 (I am keeping my arms and just replacing the ball joint)
-PU bushing kit: may not need full kit if go with new upper+lower arms
Energy supspension, http://autoplicity.com/products/17440-en...black.aspx
Shock bushings:
Upper, http://lightningmotorsports.com/whitelin...44924.aspx
Lower, http://lightningmotorsports.com/whitelin...44925.aspx
-Steering pump + gear: rebuild and revalving at http://lee-powersteering.com/
-Pitman arm: http://www.mustangsunlimited.com/itemdy0...T1=P71P+01
-Steering coupler: http://www.mustangsunlimited.com/itemdy0...=CSC311+01 or
http://www.mustangsunlimited.com/itemdy0...W120025+01
-Power steering hoses:
http://www.mustangsunlimited.com/itemdy0...1=3-530+01
http://www.mustangsunlimited.com/itemdy0...T1=3627+01



Electrical
-Ammeter: voltmeter conversion at RCCInnovations.com
-Tach: upgrade by RCCInnovations.com
-Headlight upgrade: Delta Halogen
http://www.cjponyparts.com/delta-halogen.../p/HLA1HC/
-Headlight relay harness:
http://www.summitracing.com/parts/upd-34263/overview/
-Gas tank sending unit:
http://www.cjponyparts.com/fuel-tank-sen...73/p/FSU4/

Notes:
-This list is a work in progress. I am adding/subtracting options as I go.
-I may consolidate vendors to save in shipping expenses, so ultimately I may purchase from different vendors than shown here.


        [Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
4-wheel disc brakes
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#7
I've done the tin man sub frame connectors, I think I got them from Jegs because they were a bit cheaper and free shipping than direct from Tin Man.. Go figure. I like them because they look semi stock with the square tubing.
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#8
Have you thought about changing the rear axle ratio? With a 4V I think perhaps a 3.50 would really wake it up. Might be a lot if you do a lot of highway driving.

I love the color combination of your car, it's really sharp and looks really well done!
  Reply
#9
mjlan;204547 Wrote:Have you thought about changing the rear axle ratio? With a 4V I think perhaps a 3.50 would really wake it up. Might be a lot if you do a lot of highway driving.

I love the color combination of your car, it's really sharp and looks really well done!

Yeah, I thought about it, but not in the budget for this winter. I first want to replace all critical components to make car safe and reliable. I was thinking 3.50 sometime in the future.


        [Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
4-wheel disc brakes
  Reply
#10
Here are the results of the baseline dyno run. Done in a Mustang dyno.
You can go to the thread for more info: http://www.7173mustangs.com/showthread.php?tid=20193


1971 M-code Mach 1


Attached Files Thumbnail(s)
   


        [Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
4-wheel disc brakes
  Reply


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