Hi there,

I'm interetsed in pickin up one of the edelbrock or holley 4 barrel throttle bodys for a 5.2L dakota. Will they just bolt up to the 4-bbl M1 intake? Considering it's 1000CFM would i need to jump to a bigger injector size and possibly an adjustable fuel regulator??

Thank you!

Kyle

 

Well Kyle,

Sounds like you are off toa great start! You will need to upgrade the injectors and possibly the pump, depending on what plans you have for the future (i.e. forced induction). An adjustable fuel pressure regulator is a must, as will be a free-flowing exhaust and possibly headers. I would also recommend a computer flash when you have completed the installation.

Keep us posted.

 

I don't believe you will need a larger fuel injector
assuming you have the 23.2 lb/hr injector
used from 1996-2001
but the 1995 Magnum 5.9V8 injector
and the 1994 Neon injector are slightly bigger.

If you are going to the 4bbl version of the MPI
and the large throttle body
you may experience a bit of 'bogging' if you
open the throttle too suddenly
but this is something you can teach your foot to avoid.

I believe a professional
{KRC, Shady Dell Speed Shop, Hughes Engine, RevSearch}
would urge you to match up these parts
with either ported cylinder heads'
or at least "out of the box"
Mopar R/T or Edelbrock Magnum cylinder heads.

 

If i do upgrade the injectors, pump and fuel regulator....Is there anyway I can avoid the "bogging" action you speak of with the M1 4bbl and 1000cfm Body other than heads per say?

i am not a fan of bogging! I already have headers, full duals, air cleaner, and ignition.

 

Training yourself not to press the throttle too fast
is the 'keep it simple' way to avoid the bog
but you could also
adjust the throttle stop screw
to keep the larger throttle body blades from opening all the way
during 'daily driving'
and then re-adjust at the track.

Chrysler went to a large throttle body on the 5.7 Hemi
to get a few more horsepower at high rpm
but put on a computer operated 'fly by wire' throttle actuator
to keep from bogging at lower rpm.

The electric throttle also allows the PCM computer to close it against the driver's will if the knock sensors begin firing and one of the cylinders is in danger of being destroyed by detonation. Before the electric throttle, all the PCM computer could do was severely cut back the ignition timing.

This added layer of detonation protection also allowed Chrysler to raise the compression ratio a bit, which helps 'daily driving' MPG.

But, if you want to learn some juicy new cuss words
just ask an old time hot rod shop owner
what he thinks of the 5.7 Hemi's computer-electric throttle....

 

so in lamens terms....other than heads theres nothing haha..thanks 4 the info though

 

I would talk to Hughes Engines. They are very helpful and have decent prices.