The 505 runs for the first time today

[Paul_G]

It has taken me 2 years to get this engine done. From bringing the motor home engine home, to starting it up as a complete 505 CI stroker motor. It runs!

 

[hammond472]

 

[wagonman]

Sounds Snappy.

 

[beanhead]

Congratulations Paul!

 

[1967coronet440]

Very nice

 

[Paul_G]

First thing I noticed this engine does, just blip the throttle and the tach hits 4 grand. Seems like it revs much quicker than any other engines I have owned in the past.

The base map in the Edelbrock ECU makes a huge difference. The base map I started the engine with was used in the 383 that was previously in this car. The stroker 505 engine did not even idle well with it. The new base map the "wizard" chose works much better. Smoother idle and much crisper throttle response.

I cant wait to drive this car. When I get the A833 back together I can go for a ride. I am going to use a compression braking method to break in this engine. Basically, run the car up to speed in a lower gear so the engine revs climb to around 4000, then let off the gas and let the engine compression brake back down. This is supposed to use the compression pressure in the cylinders to help push out the rings for a better seal against the cylinder walls. This has to be done within the first few miles of driving, or on a dyno.

 

[wyrmrider]

pressure on progressively harder acceleration
after oil is warmed up
starting in low
then loading it up in 2-make it work
the key is coasting back down
high vacuum flushes crap and pulls oil up to the rings
do it at least 10 times
end at some slightly illegal speed -coast it back down
then you are good to go
then vary your rpm when dtiving (= load)
and keep backing it down every mile or so going longer as you put on miles
cheers
btw my little girl lives 1 block from the freeway
so
0W-x oil
and coast back before hittig the freeway
and backing it down once on the freeway till fully warmed up
just take your foot off the gas for 15 mph
her college graduation honda still had great compression 20 years later when her husband stuck it in reverse going fwd
My 92 dakota 5.2 has 300 k on it
still good compression
process works
btw 2
just changed the fluid in the truck
about 250 k on the 518/ 46RH w trasgo stage 2 kit big cooler 1/2 inch lines and inline filter 518 is built to diesel specs with straight cut gears after stock failed at 50 k miles under warranty- ma mopar paid for the hd parts, rebuild at the dealer of my choice- no reman
no crap in the pan atf+4

 

[451Mopar]

Congratulations! x2

 

[PRHeads]

Nice!!

 

[Paul_G]

Nice!!

If you remember we specced the cam to go in to my 72 Charger, 46rh overdrive trans with lock up converter. But for now, I decided to put the engine in the 73 Charger muscle rat I am restoring instead. The 73 has a 4 speed manual trans. I imagine the cam would have been a little different going in to to a manual trans car?

 

[BDF6]

Cool, good for you!

 

[PRHeads]

If you remember we specced the cam to go in to my 72 Charger, 46rh overdrive trans with lock up converter. But for now, I decided to put the engine in the 73 Charger muscle rat I am restoring instead. The 73 has a 4 speed manual trans. I imagine the cam would have been a little different going in to to a manual trans car?

Depending on the final gearing, it “could” be a little bigger...... but it certainly wouldn’t have to be.

I look at the cruise rpm, and place a pretty high emphasis on that as part of the decision making process for a car that will see real street duty.

So, if the no overdrive situation resulted in a higher cruise rpm, that would open the door for a little more duration.

But just because the door is open...... doesn’t mean you have to go thru it.