Forums Calendar Active Threads
Previous Thread
Next Thread
Print Thread
Fuel injectors.
#1574371 05/21/06 11:47 AM
Joined: Dec 2004
Posts: 333
A
Augi Offline OP
CEG\'er
OP Offline
Augi
CEG\'er
A
Joined: Dec 2004
Posts: 333
I searched and.... nothing. What all fuel injectors/rail are interchangable to fit a pre '98 silvertop?

My Cardomain Page
Re: Fuel injectors.
#1574372 05/21/06 01:14 PM
Joined: Sep 2003
Posts: 82
New Jersey
1
1ofakindtour Offline
CEG\'er
Offline
1ofakindtour
CEG\'er
1
Joined: Sep 2003
Posts: 82
New Jersey
I have some 19lbs for you... look in the classsifieds i have a lot for you...

Re: Fuel injectors.
#1574373 05/21/06 06:41 PM
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
B
ButtonPuncher_dup1 Offline
Hard-core CEG\'er
Offline
ButtonPuncher_dup1
Hard-core CEG\'er
B
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
What are you trying to do? Upgrade? Or just replace old stock parts?

You can use any regular Focus fuel rail. BUT you will have to hook up an external fuel pressure regulator. (All Focus Zetec's are a non-return style system.)

Any high-impedance Focus Zetec injectors will work. If you go to bigger injectors, you need to reprogram your PCM. If you don't you will run very rich and eventually throw a CEL. BTW, CFM has very good prices.

There has been much debate on the stock injector size. Most people say either 16lb/hr or 19lb/hr. I was just looking at some pictures of my stock injectors and they have a 20 stamped in the side. This leads me to believe that they are 20lb/hr. That proves the calculations in my previous thread.

Here are some pics of the stock injectors. Beware, they are very large detailed pics.

http://images5.theimagehosting.com/P6270032_injectors_PN_side.JPG

http://images5.theimagehosting.com/P6270031_injectors_denso_side.JPG

http://images5.theimagehosting.com/P6270025_injectors.JPG

http://images5.theimagehosting.com/P6270026_injectors_angled.JPG

http://images5.theimagehosting.com/P6270027_injectors_top.JPG

http://images5.theimagehosting.com/P6270030_injectors_bottom.JPG


HTH,
BP

Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies--- +++JRSC M62 Under Construction+++ My big-a$$ mod list.
Re: Fuel injectors.
#1574374 05/22/06 09:22 AM
Joined: Jul 2001
Posts: 439
Mililani, Hawaii
O
ohsigmachi_dup1 Offline
CEG\'er
Offline
ohsigmachi_dup1
CEG\'er
O
Joined: Jul 2001
Posts: 439
Mililani, Hawaii
I had my stockers, cleaned/flow benched, and blueprinted by RC engineering a few years ago: 16.4lbs/hr average.

Ohsigmachi '96 GL MTX Zetec --I don't won't to hurt you, but it's still on my list of things to do.-- View projectSlippery Slope
Re: Fuel injectors.
#1574375 05/22/06 03:53 PM
Joined: Apr 2002
Posts: 2,483
near Tacoma, WA
S
SleeperZ Offline
Hard-core CEG'er
Offline
SleeperZ
Hard-core CEG'er
S
Joined: Apr 2002
Posts: 2,483
near Tacoma, WA
I have come to the conclusion that Pre98's run 16lb injectors and Post98's run 17lb injectors.
This is because Pre98s have a return style fuel system and operate on a higher PSI than Post98's with the returnless fuel system.
It wouldn't make any sense for Ford to run a higher pulse width on the injectors, so PSI is the only other option for delivering more fuel with smaller injectors.

Frank McCoy aka Mod-deth aka Mid Life Crisis aka SVT Doood aka mcgainer is a SCAM ARTIST Pre98 Zetec - Some Mods
Re: Fuel injectors.
#1574376 05/23/06 03:46 AM
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
B
ButtonPuncher_dup1 Offline
Hard-core CEG\'er
Offline
ButtonPuncher_dup1
Hard-core CEG\'er
B
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
Originally posted by ohsigmachi:
I had my stockers, cleaned/flow benched, and blueprinted by RC engineering a few years ago: 16.4lbs/hr average.



I'm surprized that Ford runs them soo close to maxxing out. ((16.4*4)/0.45)*.90=131.2 crank HP

Not much room for expansion. Makes me wonder what my AFR looks like.


BP

Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies--- +++JRSC M62 Under Construction+++ My big-a$$ mod list.
Re: Fuel injectors.
#1574377 05/23/06 11:25 PM
Joined: Apr 2002
Posts: 2,483
near Tacoma, WA
S
SleeperZ Offline
Hard-core CEG'er
Offline
SleeperZ
Hard-core CEG'er
S
Joined: Apr 2002
Posts: 2,483
near Tacoma, WA
Originally posted by ButtonPuncher:
Originally posted by ohsigmachi:
I had my stockers, cleaned/flow benched, and blueprinted by RC engineering a few years ago: 16.4lbs/hr average.



I'm surprized that Ford runs them soo close to maxxing out. ((16.4*4)/0.45)*.90=131.2 crank HP

Not much room for expansion. Makes me wonder what my AFR looks like.


BP



I've often wodered why Ford did this.

Frank McCoy aka Mod-deth aka Mid Life Crisis aka SVT Doood aka mcgainer is a SCAM ARTIST Pre98 Zetec - Some Mods
Re: Fuel injectors.
#1574378 05/24/06 12:29 AM
Joined: Aug 2001
Posts: 17,248
IL
L
Loco4G63 Offline
CEG road warrior
Offline
Loco4G63
CEG road warrior
L
Joined: Aug 2001
Posts: 17,248
IL
I ran fine with stock injectors with my supercharger at 4-5 psi.

Hector 2003 Rally Red Mitsubishi Evolution VIII 257HP/259TQ 2005 Lapis Blue Mazda 6s RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED 160HP/141TQ
Re: Fuel injectors.
#1574379 05/24/06 07:37 AM
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
B
ButtonPuncher_dup1 Offline
Hard-core CEG\'er
Offline
ButtonPuncher_dup1
Hard-core CEG\'er
B
Joined: Aug 2002
Posts: 1,224
Inbetween turbo and super land...
What did your AFR look like?

I'm guessing that you were running your injectors wide open at the top end.

(17*4)/.45=151.1 crank HP

Something isn't adding up. With drivetrain loss you'd be looking at 120WHP.

When did you switch to 42's?

I wonder if the 98+ Contour's can really bump the fuel pump voltage to avoid a lean situation. BUT... You'd be at WOT, open loop, so it wouldn't be reading your O2 sensors at that point.

BP

Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies--- +++JRSC M62 Under Construction+++ My big-a$$ mod list.
Re: Fuel injectors.
#1574380 05/24/06 09:30 PM
Joined: Aug 2001
Posts: 17,248
IL
L
Loco4G63 Offline
CEG road warrior
Offline
Loco4G63
CEG road warrior
L
Joined: Aug 2001
Posts: 17,248
IL
Originally posted by ButtonPuncher:
What did your AFR look like?

I'm guessing that you were running your injectors wide open at the top end.

(17*4)/.45=151.1 crank HP

Something isn't adding up. With drivetrain loss you'd be looking at 120WHP.

When did you switch to 42's?

I wonder if the 98+ Contour's can really bump the fuel pump voltage to avoid a lean situation. BUT... You'd be at WOT, open loop, so it wouldn't be reading your O2 sensors at that point.

BP

I've read that the Focus has 19 lb injectors....why would the Focus have 19s and the Contour of the same year would have 17s......something doesn't add up.

My A/F couldn't have been bad or the engine would have been in pieces.

BTW I swapped in the 42#s, Mustang GT MAF, 2.6 pulley, and chip all at the same time.

Hector 2003 Rally Red Mitsubishi Evolution VIII 257HP/259TQ 2005 Lapis Blue Mazda 6s RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED 160HP/141TQ

Moderated by  Loco4G63 

Link Copied to Clipboard
Forum Rules · Mark All Read Contact Us · Forum Help · Contour Enthusiasts Group Archives
Powered by UBB.threads™ PHP Forum Software 7.7.5