Confab

[straycat]

What is a 2000 5.0? Thought they still had 4.6s in them that year.

Just last night the wife drove the Mustang to Dallas from here and beat my fuel economy; I had gotten 26.3. She got 27.5 but that's not hard to believe. She doesn't like to like I like to.

So, they will do it.

No, you are right, that wimpy motor was replaced with a 5.0 motor. I just would love that motor of his!!!! The turbo setup is incredible!!!! The power is incredible...but the motor was well built by a rally racer who raced it a Sebring in the modified class for 2 seasons. The guy bought the car new in 2000. It is putting out over 500 rwhp. Still gets great gas milage!!!

 

[rangerluver]

The torque converter is a fluid connection between the tranny and the engine, driving around with it unlocked is like slipping the clutch in a manual. Once the torque converter is locked, you have direct drive with no slippage, hence lower RPM. Auto's die because of heat, caused by slipping....

Stall speeds are where the converter engages, like a centrifugal setup on a sled/snow mobile. Compared to a manual, it's like revving the truck before releasing the clutch. Higher RPM's generally = more power, better launches etc, which is why drag cars usually have higher stall converters.

Long live manual tranny's!

Thanks for the education. I thought that this was how it worked basically by reading books and studying but....you never really know.

Since we are on the subject.....can you get a torque converter to lock up at 50 rpms?
The reason I ask is I am in the process of converting the '88 over to electric and conventional wisdom says that you have to have a manual trans with an electric motor because at the stoplight the electric motor stops running. At startup, it would freewheel until 800? 600? rpms or whatever the AT that the vehicle is equipped with. To me, at startup you would be putting extreme strain on the drivetrain by doing that; think burnout when it did finally engage.

So, can you in essence "lock-up" or engage an auto trans at 0 or 50 rpms? Or maybe I am asking about stall speed. Is it possible and if so, how can you make it happen?

 

[wahlstrom1]

Running the electric motor would be no different then running a gas engine as far as that goes, you don't have to shut the truck off at every light do you? The difference would be that the truck wouldn't roll away in gear when you let off the brake like a gasser does because there would be no RPM when stopped.

 

[James86]

Since we seem to kinda jumpin around all over the place in this thread....

I've heard of people with earlier 3.0's changing to the later platic upper intakes because not only does it not conduct heat, but the intake runners are noticeably longer and help with torque, and the HP tables in the tech library seem to show a bit more torque in the later years to back this up. Someone on the site once asked hwo to hook up the EGR, and I'm kinda curious as well since stumbling on this:

http://cgi.ebay.com/ebaymotors/2002...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Its the throttle body and upper intake all together, but I have never seen the engine bay of a newer 3.0, so I'm assuming the thump on the side is the EGR? I know on the Taurus consiguration it seems to come into the end of the intake from what I've seen at the JY. Anyone with a 2002+ 3.0 pic?

 

[rangerluver]

Running the electric motor would be no different then running a gas engine as far as that goes, you don't have to shut the truck off at every light do you? The difference would be that the truck wouldn't roll away in gear when you let off the brake like a gasser does because there would be no RPM when stopped.

Ok, but will there be a big lurch on startup every time you take off from the light? Or, will it just be like it finally received enough hydraulic(if you will) pressure to start spinning the torque converter and start the vehicle rolling.

I guess I never started an automatic while it was in gear but that to me is what it would feel like.

 

[James86]

You woudn't have a lurch because the torque converter has a certain stall RPM I'd think, also it'd depend on whether or not it is still set up for lockup I imagine.

 

[rangerluver]

See, that was what I was kind of figureing but like I said, I am not exactly the guy to turn to when it comes to details on auto transmissions.