Why the 4.0?

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02-01-2009, 05:40 PM

#11

mustangcat

Deputy CatDog - To Purr'tect and Explode

Join Date: Jun 2007

Location: NM

Posts: 1,900

Really wish Ford would have just upgraded the old 3.8 pusrod, instead of the new 4.0 SOHC. The power curve of that little pushrod was much more attractive than the SOHC. Added, the engine would be lighter and have smaller heads, meaning you could add more equipment in the engine bay.

and the 4.0L wasn't built for the Mustang crowd, it was built for the Tractor crowd a long time ago.

02-02-2009, 12:25 AM

#12

william_ace

1st Gear Member

Join Date: Jan 2009

Location: TX

Posts: 64

Quote:

Originally Posted by mustangcat

and the 4.0L wasn't built for the Mustang crowd, it was built for the Tractor crowd a long time ago.

no no the 4.0 was built for the ranger/exploder. the 4.9... now theres a tractor motor

02-02-2009, 02:55 PM

#13

acascianelli

5th Gear Member

Join Date: Jul 2006

Location: Sterling Heights, MI

Posts: 4,409

Quote:

Originally Posted by aode08

Ill answer that question real fast,

the other V-6 engines they have cant take the abuse of the 4.0.

The 4.0 was specifically built for the MUSTANG CROWD, and take up to 450 HP under boost with no problems all stock.

Yea...no.

The SOHC 4.0L was first used in 1997, and the OHV 4.0L was first used in 1990. It is by no means specifically designed for the Mustang. The reasons why it is being used in the Mustang is because it's reliable, readily available, cheap to build, and its' power delivery better suited for a muscle car than a twin cam high revving V6. None of Fords more powerful V6 engines are designed for RWD applications, so in order to use those they'd need some heavy redesigning. Take GM for example and look at how long it took them to put a V8 into the W-body's. The reason why the 4.0L takes so well to boost is because it's over-engineered for reliability for truck duty.