63mm throttle body and injectors?

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Mar 4, 2009 | 03:39 PM

jugbutt

Thread Starter

Newbie

Joined: Feb 2009

Posts: 14

Likes: 0

Year: 1991

Model: Cherokee

Engine: 1996 4.0L HO

63mm throttle body and injectors?

Help me clear something up.

By using a 63mm throttle body from Leigh performance and Ford 5.0 Mustang fuel injectors I will see big gain in my 4.0?

By the way this is a great place and love the photos.

And do you have to change or do anything to put the injectors in ?

Last edited by jugbutt; Mar 4, 2009 at 04:35 PM. Reason: thought of something else.

Mar 4, 2009 | 04:02 PM

Burns

Member

Joined: Nov 2008

Posts: 109

Likes: 0

Year: 1998

Model: Cherokee

Engine: 4.0

I wouldnt say BIG but, you'll notice some..............

Mar 4, 2009 | 05:46 PM

98 JeepJeep

CF Veteran

Joined: Oct 2008

Posts: 2,543

Likes: 5

From: Stafford,VA

Year: 1998

Model: Cherokee

Engine: 4.0

skip the injectors if you dont do a intake manifold upgrade.

Mar 4, 2009 | 05:51 PM

okcjeeper

::CF Administrator::

Joined: May 2008

Posts: 10,039

Likes: 16

From: Okc area

Year: 1991

Model: Cherokee

Engine: 4.0 I6

The bored rb will inprove throttle response. As stated above the injectors aren't a big improvement if you don't do the intake manifold upgrade from a 99 or newer XJ.