Road Runner is now fuel injected

[Blue70]

So I have been wanting to convert to fuel injection for a long time now..

Last week my Powerjection III showed up in the mail.
I had to wait on some AN fittings so I was not able to complete the install until last night.

First thing I must say is that this is a very easy install, and the kit comes with well written instructions, with pictures where needed.

I unbolted the Mighty Demon that was on the car, bolted the new throttle body in place.. screwed in the temp sensor.. drilled a hole
in the exhaust for the O2 sensor, hooked up fuel lines (Had to run a new line for my return) hooked up 4 wires and was ready to fire.

Plugged in the laptop, fired up the software, it seriously took less than 5 min to insert the parameters and it was time to turn the key.

First impression, is WOW, there is nothing like fuel injection.. I have always had to play games to get the car to start and stay running
until it was warmed up (of course no choke on the mighty demon probably didn't help much) but a quick turn of the key and the car
fired right up and sat at a nice loppy idle.. hit the throttle a couple times, and the car revved like it as never revved before!!
throttle response off idle was incredible. I turned the car off just to hear it start again, it was a thing of beauty..

Unfortunately I did have 2 fittings that were leaking a bit at both sides of the fuel pump.. (that I installed) so I needed to fix that before I could take it
out for a real test, but so far it got 2 thumbs up!!

So I got my new fuel fittings, took the car out for a spin.. had a slight problem at first. If I gave it gas, then coasted down it was fine, but if I gave it gas and then pushed in the clutch it would stall.. I called tech support, and the guy told me what to change in the program, 9one number) and where to set it, and I was off and running again.



Took the car out again, and the stalling issue was gone after the adjustment, but this time out the brake pedal went to the floor.. no brakes.. Bad master cylinder, so I replaced that this week, but have not been able to really take the car out for a good shakedown run, but my first short driving impression is positive..

[Airmale]

1st thing I want to say is great job! Looks very clean. Do they make a unit that supports 650hp? I love the simplicity of your installation.

[windsor]

Keep us posted on your progress! What are the general specs of the car?

Airmale, you'd be pushing it with 650 hp with this kit. Personally, I reaaally wish they would've used 6 injectors instead of 4. It would support much more power.

[GrabberGT]

Congrats.... I've got a Powerjection 1 (same thing, just more wires and remote computer) I am waiting to install. I cant wait to get it up and running.

[Blue70]

Keep us posted on your progress! What are the general specs of the car?

Airmale, you'd be pushing it with 650 hp with this kit. Personally, I reaaally wish they would've used 6 injectors instead of 4. It would support much more power.

General specs are its a 74 Road Runner
383 engine. XE 268 cam. Stealth aluminum heads.
4 speed.. 3.91s in an 8-3/4 rear
(have a set of 3.55s in the garage that i might try)
17" Torqlites

[windsor]

Nice.

I'm considering the Stage 4 EMS (when it comes out) for my build, with a different throttle body.