Vehicle Owner

Member ID: defiancecp

Location: somewhere, AR

Vehicle Info

1972 Dodge Charger

Bragging Rights

  • 1/4 Mile0 sec @ -1 mph
  • 0-600sec
  • Top Speed-1mph
  • HP-1
  • Weight-1lbs

Major Upgrades

  • turbo
  • nitrous
  • bore increase
  • port and polish
  • supercharger
  • extrude honed
  • stroke increase
  • engine swap

Modifications

Performance Parts

  • Edelbrock Intake 
  • Custom Perf. Chip 
  • MSD Ignition 

Car Audio & Video

Ratings

    • Currently 3.8/5 Stars.
    • Currently 3.9/5 Stars.
    • Currently 3.6/5 Stars.
    • Currently 3.6/5 Stars.

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Last updated: Oct 03, 2009

Hits: 12,771

Richard’s Dodge Charger

  • Currently 3.7529411764705 /5 Stars.
25 guestbook comments

Page 1 - Projects / WIP
Page 2 - (old) Intro / Exterior
Page 3 - (old) Trunk / Features
Page 4 - (old) Interior
Page 5 - (old) Engine / ECU
Page 6 - (old) NIGHTMARES

The defining feature of the engine is the ECU, a megasquirt DIY Fuel Injection/Ignition controller. The ECU is installed in the glovebox as pictured here.

defiancecp's 1972 Dodge Charger

The ECU controls all the aspects of engine operation. It controls an air valve for idle control (working on setup for this), timing advance (working on this as well), temperature-related fan control, and of course fuel injection. The fuel injection itself is a set of eight 30#/hr injectors in a custom fuel rail as pictured here

defiancecp's 1972 Dodge Charger

The throttle and kickdown lever looked really bad before, but I cleaned them up with a mancini racing linkage and bracket kit. The fans are a set of electrics- three pullers on the rear of the radiator, controlled by the ECU, as pictured here

defiancecp's 1972 Dodge Charger

And two pushers on the front of the A/C condenser, set to turn on when the A/C is on, as pictured here

defiancecp's 1972 Dodge Charger

They're each supposedly rated at 2,000 CFM, which would put 6,000 CFM with A/C off, 9,200 (pushers are only 80% effective) with A/C on. I believe those specs are probably flubbed a bit by the mfg, but regardless, they come on at 180* and it rarely ever hits 185* even when idling (the thermostat is also a 180*).
Anyway, all ECU wiring is centrallized at an underhood Relay Box, pictured here

defiancecp's 1972 Dodge Charger

This houses fuses for all individual circuits, relays, and a bus bar for easy changes. Just below that you'll note that I added extra relays for the fans, since I didn't want the power lines for them mixed up with the ECU inputs too much.

defiancecp's 1972 Dodge Charger

Also visible here is the ignition setup. It's all MSD- a pro-billet distributor feeds the ECU timing signal, which then calculates spark timing based on rpm, vacuum, temp, etc., and sends the spark signal to the MSD 6A box, which then activates the MSD the coil, which finally sends the spark back to the distributor.
Another thing I'm pretty happy with is the belt setup. I got tired of continually re-tightening v-belts, so I added a march performance serpentine pulley kit. An overview of it can be seen here

defiancecp's 1972 Dodge Charger

As well as the Sanden A/C compressor. The entire A/C system has been replaced with modern components. The compressor, new hoses, new r134a expansion valve, new parallel flow condenser (with the fans noted above), and a new evaporator (this is the one stock-style piece). I'm still on the learning curve for A/C work, and since I'm doing everything conservative, I think it's still a bit low on refrigerant - but even so, as of last night (7/10) it will freeze you to death at 2000 RPM (still working on getting good idle performance though). Back to the pulleys, though, you can see them a bit better here

defiancecp's 1972 Dodge Charger

The water pump pulley had a cover like the alternator one, but it ended up rubbing the upper fan, so I just left it off - it looks great without it anyway :)

Finally, a quick view of my air filter - you can see the holley throttle body and what used to be the injectors before I removed them. On the left of the air filter, you'll note the intake air temp sensor for the ECU. Not a big deal, just trying to document all aspects of the system :)

defiancecp's 1972 Dodge Charger

Guestbook

Displaying entries 1-5 of 25

tommeee  

Posted by: tommeee

10/03/2009 09:04AM

wow! im speachless that thing gave me wood! 5 plus starz! check out my se ..!

Enubis  

Posted by: Enubis

03/18/2009 08:39AM

Sick whip!5stars 4 show! Theres going 2 b a big car show at Henderson State In Arkadelphia check it out www.myspace.com/headlights2tailpipes

AKcharger  

Posted by: AKcharger

12/26/2008 03:36PM

That has to be the 2nd nicest '72 Charger on the planet ;) Keep up the good work!

7urtle  

Posted by: 7urtle

12/20/2008 04:25PM

nice charger i helped paint a 72 in high school. looks good. sucks bout the job im in the same boat.the e.ds. box look sweet

BigDaddysBox  

Posted by: BigDaddysBox

11/30/2008 08:31AM

Nice ride. I was on the site looking at some of the older muscle cars... my first car was a 72 Charger. Oh the memories. Good luck with project and be sure to post some more pics. 5 stars for sure!!!

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Vehicle Owner

Member ID: defiancecp

Location: somewhere, AR