5.0 rebuild

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Jul 13, 2011 | 02:02 PM

#31

SideWinder4.9l

FTE Chapter Leader

Joined: May 2009

Posts: 8,843

Likes: 27

From: Eastern Ky

Idk man....I'll suck it up...You're right.....

Ask Conanski....He's the brain on this

Jul 13, 2011 | 02:16 PM

#32

lincolncobra4.6

New User

Joined: Jul 2011

Posts: 24

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From: forest city nc.

if you're still talkin about fire order, he is right, U HAVE to go w/351 order !15426378

Jul 13, 2011 | 02:30 PM

#33

SCRebel

Fleet Mechanic

Joined: Jun 2011

Posts: 1,324

Likes: 3

From: Conway, South Carolina

Quote:

Originally Posted by lincolncobra4.6

if you're still talkin about fire order, he is right, U HAVE to go w/351 order !15426378

Taking about running 5.8 off of a 5.0 computer. And the batch fire injection. Firing order is not the problem.

Jul 13, 2011 | 02:32 PM

#34

lew52

Postmaster

Joined: Jan 2009

Posts: 4,558

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Most all the trucks use batch fired FI , except the 94 + trucks that had MAF and all 302 HOs , they have sequential injection.....Lew

Jul 13, 2011 | 07:24 PM

#35

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

Quote:

Originally Posted by SCRebel

It would seem 5.0 or 5.8 wouldn't really matter if they fire in batches

Yes... exactly.

Jul 13, 2011 | 10:37 PM

#36

6.9idi

Thread Starter

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Joined: Dec 2009

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yes i know the truck motors fire in batches or banks. Doesn't the mustang computer make the firing order different??

Jul 13, 2011 | 11:19 PM

#37

6.9idi

Thread Starter

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Joined: Dec 2009

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and if i get gt40 heads do i have to get the intake as well or does the stock intake work with them?

Jul 14, 2011 | 04:30 AM

#38

lew52

Postmaster

Joined: Jan 2009

Posts: 4,558

Likes: 2

The mustangs use sequential fired injection , and use the HO 351 FO , the stock truck intake is a good and will work fine with the GT-40 heads....

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Jul 14, 2011 | 07:58 AM

#39

SCRebel

Fleet Mechanic

Joined: Jun 2011

Posts: 1,324

Likes: 3

From: Conway, South Carolina

Alright guys, found out today why a 5.0 computer won't work on the 5.8.

The 5.8 computer hold the injectors open just a hair longer to dump more fuel (longer stroke). The problem with the 5.0 computer is not the firing of the injectors, its the fuel ratio and fuel curve.

A 5.8 will run off of a 5.0 computer, it will just be lean. So you have to have a 5.8 computer or a chip. Unless you have mass air, the 5.0 mass air will work with the 5.8 cause of the mass air sensor instead of a map sensor.