Australian Land Rover Owners

Gallery Donate Calendar Markets Shop Subscribe! Files Links
Go Back   Australian Land Rover Owners > > >

Notices

Discovery 1 Chat specifically relating to Discovery 1's (1989-1998) "Project Jay"

Reply
 
Thread Tools Display Modes
  #1  
Old 23rd January 2011, 07:47 PM
85 county 85 county is offline
BANNED
 
Join Date: Sep 2010
Location: adelaide
Posts: 2,306
3.9 V8 Tuning

Tuning

Ok, got a new second hand donk shoved in and all is good.

Now fine tuning, if I floor it to over take, she chucks out a heap of black smoke. So apart from cleaning the maf, checking the voltage of the temp and TPS, air filter.

What else can be done?
Reply With Quote
Sponsored Links
  #2  
Old 23rd January 2011, 08:04 PM
bee utey's Avatar
bee utey bee utey is online now
OldBushie
Subscriber
 
Join Date: Apr 2009
Location: Crafers West South Australia
Posts: 9,196
Quote:
Originally Posted by 85 county View Post
Tuning

Ok, got a new second hand donk shoved in and all is good.

Now fine tuning, if I floor it to over take, she chucks out a heap of black smoke. So apart from cleaning the maf, checking the voltage of the temp and TPS, air filter.

What else can be done?
Adjustable fuel pressure reg may be a cheapie adjustment, $69 plus $15 postage on ebay. Otherwise new/reconditioned injectors perhaps.
Reply With Quote
  #3  
Old 1st May 2011, 08:50 PM
Fulbore's Avatar
Fulbore Fulbore is offline
Fossicker
 
Join Date: Jun 2009
Location: Bundaberg, Queensland.
Posts: 14
Quote:
Originally Posted by bee utey View Post
Adjustable fuel pressure reg may be a cheapie adjustment, $69 plus $15 postage on ebay. Otherwise new/reconditioned injectors perhaps.
Apologies for the silly question, why would an adjustable fuel pressure reg help and where would it be installed?

I have been considering some new injectors, but can only find second hand ones. Do you know where new ones are for sale?
Reply With Quote
  #4  
Old 1st May 2011, 09:46 PM
bee utey's Avatar
bee utey bee utey is online now
OldBushie
Subscriber
 
Join Date: Apr 2009
Location: Crafers West South Australia
Posts: 9,196
Quote:
Originally Posted by Fulbore View Post
Apologies for the silly question, why would an adjustable fuel pressure reg help and where would it be installed?

I have been considering some new injectors, but can only find second hand ones. Do you know where new ones are for sale?
An adjustable fuel pressure regulator would be fitted in place of the one at the end of your fuel rail. It is simply one way to adjust the amount of fuel that is injected. Having the system professionally fixed with the help of the forum experts is probably much better but likely much dearer. I have used an adjustable reg on an old Volvo 240 to adjust the fuelling after fitting some second hand injectors from a wrecked Falcon. As I had no idea what size the old injectors were, the adjustable reg got me to a good state of tune for under $100. As for where to get injectors, they are on ebay I'm sure. You should be looking for yellow top (?) ones. It should be possible to find more info by searching the forum for replacement injectors.
Reply With Quote
Sponsored Links
  #5  
Old 2nd May 2011, 07:02 AM
blackbuttdisco's Avatar
blackbuttdisco blackbuttdisco is offline
Master
 
Join Date: Dec 2008
Location: blackbutt qld
Posts: 418
You can get new correct injectors from Rimmers in UK and what with the Dollar now approaching 1.10US, they are a good price and they will be the right ones. Google rimmers.
Reply With Quote
  #6  
Old 2nd May 2011, 06:52 PM
85 county 85 county is offline
BANNED
 
Join Date: Sep 2010
Location: adelaide
Posts: 2,306
i think i have read about Holden or ford injectors with 4 ports??
Reply With Quote
  #7  
Old 3rd May 2011, 02:59 PM
PhilipA PhilipA is offline
Swaggie
Subscriber
 
Join Date: Jan 1970
Location: Avoca Beach
Posts: 10,097
You can get reconditioned Bosch 4hole reconditioned injectors on Ebay.
19 LB 19LB DESIGN II FUEL INJECTORS FORD MUSTANG | eBay

Those above are Gen11s.

* Fuel Injectors 19lb Design III 3 Ford Mustang TPI BMW | eBay
Those above are gen111s

The sellers say that gen11s are functionally the same as gen111s.
I have gen11s that I bought new 5years ago (still going fine)and I also have a set of gen111s on the bench which didn't arrive before I needed them to complete the engine top overhaul.

As I haven't fitted the Gen111s yet I cannot relly comment authoritatively on them, but they look fine..
Regards Philip A
Reply With Quote
  #8  
Old 4th May 2011, 08:17 AM
blitz blitz is offline
ChatterBox
Supporter
 
Join Date: Jan 1970
Location: Goolwa SA - but top ender forever
Posts: 2,485
At the risk of sounding like a nong, what is the difference between the injectors? I imagine the 4 port ones give a better burn.

So it would give better economy and power?
__________________
I own a 94 V8 disco, mods are: 4.6lt V8, ARB diff locks, 50mm suspension lift, long range tank, bullbar winch, 270/70/16 tyres, snorkle, CD stacker, GPS, compass, CB, dual batteries, and an assortment of other bits and pieces
Reply With Quote
  #9  
Old 4th May 2011, 08:59 AM
PhilipA PhilipA is offline
Swaggie
Subscriber
 
Join Date: Jan 1970
Location: Avoca Beach
Posts: 10,097
Quote:
So it would give better economy and power?
More to the point is that the Lucas injectors by 120-160KK or earlier are usually had it and drooling that makes the engine run rich. New or reconditioned Bosch 4 hole injectors are much cheaper than Lucas and cheaper even than having the Lucas cleaned, especially if a couple of Lucas fail in the cleaning as happened to me.

AFAIK from observation , the 4 hole injectors give a better more stable idle after say 30 seconds when the idle usually deteriorates with 3.9 with Lucas. Fuel economy and power do not really appear to have changed much and probably the benefits of better atomisation would be seen at low engine speeds.

It is hard for me to comment because I fitted o2 sensors at the same time but my inlet ports , inlet valves, combustion chambers , and exhaust valves are very clean after 90KK . The walls of the inlet ports have a "washed clean" appearance.( I replaced the heads with another set I have)
But again I have recently been dosing the fuel with POR fuel stabilizer which is also an injector cleaner.
Regards Philip A
Reply With Quote
  #10  
Old 4th May 2011, 12:50 PM
jonse jonse is offline
Fossicker
Subscriber
 
Join Date: Mar 2009
Location: Northern Sydney burbs
Posts: 49
Quote:
Originally Posted by PhilipA View Post
You can get reconditioned Bosch 4hole reconditioned injectors on Ebay.
19 LB 19LB DESIGN II FUEL INJECTORS FORD MUSTANG | eBay

Those above are Gen11s.

* Fuel Injectors 19lb Design III 3 Ford Mustang TPI BMW | eBay
Those above are gen111s

The sellers say that gen11s are functionally the same as gen111s.
I have gen11s that I bought new 5years ago (still going fine)and I also have a set of gen111s on the bench which didn't arrive before I needed them to complete the engine top overhaul.

As I haven't fitted the Gen111s yet I cannot relly comment authoritatively on them, but they look fine..
Regards Philip A
Thats useful to know - I have 3 sets of these at home as they are the same injectors that fit my Porsche 928.

I don't know how they are retained in the fuel rail on a Disco, but there are a variety of different diameters to the upper part and positions of retaining clip slots on the injector - Important to get the ones that match the fuel rail clips on the disco (if that is how they are held in position) . Top and bottom O ring sizes differ also depending upon the original application simple enough to source the correct OD O ring though. There's some more info here

Injectors - choosing the right Design III (and some II info) - Rennlist Discussion Forums
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Search AULRO.com ONLY!
Search All the Web!

All times are GMT +10. The time now is 09:22 AM.



Powered by vBulletin®
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Feedback Buttons provided by Advanced Post Thanks / Like v3.6.3 (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
AULRO.com
Copyright 2001 - 2016
Independently Owned and Operated by
Dave Blears Computing - DavecandoIT -AULRO.com
LAND ROVER and its logo are the registered trademarks of Land Rover.
Land Rover is not affiliated with AULRO.com.