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13-04-2010
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Rock Munki
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Join Date: Mar 2008
Location: Kellyville NSW
Posts: 2,381 What Jeep do I drive?: XJ
Likes: 178
Liked 351 Times in 223 Posts
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Quote:
Originally Posted by rainman
For the Ausi Wrecking yard Ferrets& Ebay bandits
AU ford Falcon 4.0L
Stock injector Bosch # 0280155844 have the exact same specifications as the (American ford 19#) 0280155710 but takes clip nuts.
Holden Commodore 3.8l V6
VT, VU, VX, VY, WH, WK and KIA Mentor and Shuma
Bosch #0280155777 Have a coil resistance of 12 ohms and a nominal working pressure of 49psi otherwise the flow rates @ 43.5psi are just a wee (insignificantly so) bit smaller and all other specifications are the same as the ford AU injectors.
It should be reiterated here that the #19 ford (and holden) injectors will drop straight in and work. However they do not really flow enough for use in a jeep 4L motor especially with '95 or earlier models that run 39PSI on the fuel rail @WOT. They may cause a lean condition at wide open throttle and they will spend a lot of time working at grater than 80% duty cycle, this causes inefficient fuel atomization and a markedly shorter injector service life.
If you run a 48-49PSI fuel rail pressure you should be able to get a flow of 220cc which is the minimum of what is required.
If I had a post '96 I would verify I had 48-49PSI on the fuel rail, then I would go for the VT commodore injector, It has a lower impedance and Bosch state its nominal operating pressure is 350KPa/ 49PSI. Also, 3.8l VT Commodore makes 147kw @ 5200 RPM = 197 HP. Our jeeps make 190HP.
Jeep engines only make 190 HP. So the injectors can do it. And you can get cleaned & tested sets of 6 for under $100 on ebay.
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Don't know anybody that has done it but the injectors are the same spec as the ford #19lb that are a common swap in the states.
Look it up.
Bosch injector specifications:
http://www.usrallyteam.com/content/p...ector_data.xls
Just to be safe would only do it with a post '96=OBD2 XJ.
__________________
Obd1 scanner.
'95 sport,4.6 stroker, 4.5" lift, 32"s, 4:10's, 8.25&SYE, taurus fan
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13-04-2010
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 52
Posts: 10,546 What Jeep do I drive?: WK2
Likes: 369
Liked 1,113 Times in 693 Posts
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How do us OBD1 owners up our fuel rail pressure????
__________________
JJ
Do it once, Do it right!
2014 WK2 Overland
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13-04-2010
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Rock Munki
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Join Date: Mar 2008
Location: Kellyville NSW
Posts: 2,381 What Jeep do I drive?: XJ
Likes: 178
Liked 351 Times in 223 Posts
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Quote:
Originally Posted by junglejuice
How do us OBD1 owners up our fuel rail pressure????
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Coverd in first post 91-95 Jeeps with Fuel Pressure Regulators (FPR) on the fuel rail.
and in the tip sheet.............no wrecker option for us as far as I know, have to order from the states~$80 delivered + the Vt bomadorre Injectors.
Neon Injectors are the cheapest option for Ausi OBD1 XJ's as far as I know.
__________________
Obd1 scanner.
'95 sport,4.6 stroker, 4.5" lift, 32"s, 4:10's, 8.25&SYE, taurus fan
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13-04-2010
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 52
Posts: 10,546 What Jeep do I drive?: WK2
Likes: 369
Liked 1,113 Times in 693 Posts
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If we were to change the fuel rail to a type that doesn't have the built in regulator is there a "wrecker option" regulator available, does anybody know?
How do the commies and falcons regulate their pressure?????
__________________
JJ
Do it once, Do it right!
2014 WK2 Overland
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13-04-2010
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Rock Munki
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Join Date: Mar 2008
Location: Kellyville NSW
Posts: 2,381 What Jeep do I drive?: XJ
Likes: 178
Liked 351 Times in 223 Posts
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How do the commies and falcons regulate their pressure?????
They have fuel pressure regulators on the fuel rail that will not "drop into the jeep fuel rail".
The ford one runs the same pressure as the OBD1 jeeps.
If we were to change the fuel rail to a type that doesn't have the built in regulator is there a "wrecker option" regulator available, does anybody know?
I think that blanking off the back of the fpr void, on the stock OBD1 fuel rail, so the fuel runs straight out of the rail and into a off rail fpr, like what is common in aftermarket turbo applications would be simplest.
Don't know of a stock off-raill FPR setup that you get at a wreckers. Would also have to establish the fuel pressure of the off-rail FPR.
You could also get an aftermarket adjustable offrail fpr, but for the money & time it would be cheaper just to get the 49PSI Chrysler regulator shipped from the states.
__________________
Obd1 scanner.
'95 sport,4.6 stroker, 4.5" lift, 32"s, 4:10's, 8.25&SYE, taurus fan
Last edited by rainman; 13-04-2010 at 09:58 PM.
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13-04-2010
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 52
Posts: 10,546 What Jeep do I drive?: WK2
Likes: 369
Liked 1,113 Times in 693 Posts
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Quote:
Originally Posted by rainman
How do the commies and falcons regulate their pressure?????
They have fuel pressure regulators on the fuel rail that will not "drop into the jeep fuel rail".
The ford one runs the same pressure as the OBD1 jeeps.
If we were to change the fuel rail to a type that doesn't have the built in regulator is there a "wrecker option" regulator available, does anybody know?
I think that blanking off the back of the fpr void, on the stock OBD1 fuel rail, so the fuel runs straight out of the rail and into a off rail fpr, like what is common in aftermarket turbo applications would be simplest.
Don't know of a stock off-raill FPR setup that you get at a wreckers. Would also have to establish the fuel pressure of the off-rail FPR.
You could also get an aftermarket adjustable offrail fpr, but for the money & time it would be cheaper just to get the 49PSI Chrysler regulator shipped from the states.
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So the Falcon injectors run at the same pressure as an OBD1 Jeep????
__________________
JJ
Do it once, Do it right!
2014 WK2 Overland
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15-04-2011
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I just registered
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Join Date: Feb 2011
Location: Bay of Plenty, New Zealand
Posts: 15 What Jeep do I drive?: XJ
Likes: 0
Liked 0 Times in 0 Posts
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So where did you guys buy your neon injectors from, the best price I could get in NZ was $600 EACH!!
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