 2.0 Fuel Injectors, Standard FJ67 |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| ChrisFoley |
 Aug 1 2014, 02:16 PM
Post
#21
|
|
I am Tangerine Racing  Group: Members Posts: 7,911 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
 |
Thanks Mike!
|
   |
 
|
| mcswiggs |
Apr 21 2021, 01:14 AM
Post
#22
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
Hi guys,
Just raising this thread from the dead re the Intermotor FJ67 replacement injectors. I’ve rebuilt my 2L as a 2056cc and had to replace the old leaking injectors. The FJ67s have a higher flow rate - so do I need to reduce the fuel pressure to compensate, and if so, what to? Anyone with some real life experience able to help? The engine just about runs but struggles to start from cold. I used an online calculator to work out what pressure would give the same flow rate as the originals and set the regulator for 22psi. But I’ve read elsewhere on the forum that the pressure should be left at 28-30 psi. Cheers Dom |
|
|
|
| ddire333 |
Apr 21 2021, 07:31 AM
Post
#23
|
|
Member Group: Members Posts: 91 Joined: 2-November 20 From: ireland Member No.: 24,835 Region Association: Europe
|
hi dom, following down the same route shortly, 2056 and same new injectors, so more plan than experience .... I also have to rebuild the mps so it likely to be slightly out of factory spec so my plan is
2056 will need more fuel than stock - say 6% or so have a gunson gastester - which will help set the right mix at idle (via ecu adjuster / idle screw) i'm going to put in an 02 sensor in the exhaust just where the banks meet, which should allow for setting the fuel pressure to get mixture right across the rest of the rpm range, if pressure adjustment won't solve then move to mps adjustment. |
|
|
|
| rbzymek |
Apr 21 2021, 10:29 AM
Post
#24
|
|
Member Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest
|
I have been running the FJ76 on my 2056 for a while now. With L-Jet it is easier to tune by adjusting the vane meter and watching the AFR meter. Fuel pressure is stock.
|
|
|
|
| mcswiggs |
Apr 21 2021, 12:56 PM
Post
#25
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
QUOTE(ddire333 @ Apr 21 2021, 07:31 AM)  hi dom, following down the same route shortly, 2056 and same new injectors, so more plan than experience .... I also have to rebuild the mps so it likely to be slightly out of factory spec so my plan is 2056 will need more fuel than stock - say 6% or so have a gunson gastester - which will help set the right mix at idle (via ecu adjuster / idle screw) i'm going to put in an 02 sensor in the exhaust just where the banks meet, which should allow for setting the fuel pressure to get mixture right across the rest of the rpm range, if pressure adjustment won't solve then move to mps adjustment. I like your style. I’ve got a Gunson somewhere - not the most accurate bit of kit but should help with the idle set up. Bench test of the MPS was fine, but we’ll see. |
|
|
|
| mcswiggs |
Apr 21 2021, 12:59 PM
Post
#26
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
QUOTE(rbzymek @ Apr 21 2021, 10:29 AM) I have been running the FJ76 on my 2056 for a while now. With L-Jet it is easier to tune by adjusting the vane meter and watching the AFR meter. Fuel pressure is stock. Right, that’s enough for me to pump up the pressure back to stock and see what happens, thanks. I’ll let you know if there’s an improvement! Hang on a mo, did you mean FJ76 or FJ67?? |
|
|
|
| rbzymek |
Apr 21 2021, 01:48 PM
Post
#27
|
|
Member Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest
|
Um, FJ67.....
|
|
|
|
| mcswiggs |
Apr 21 2021, 02:46 PM
Post
#28
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
|
|
|
|
| Mblizzard |
Apr 21 2021, 04:18 PM
Post
#29
|
|
Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. |
|
|
|
| Mark Henry |
Apr 21 2021, 04:24 PM
Post
#30
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) |
|
|
|
| Mblizzard |
Apr 21 2021, 06:49 PM
Post
#31
|
|
Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? |
|
|
|
| Mark Henry |
Apr 21 2021, 07:03 PM
Post
#32
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Mblizzard @ Apr 21 2021, 08:49 PM) QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? WW2 war bride from Croydon, just south of London |
|
|
|
| mcswiggs |
Apr 22 2021, 12:19 AM
Post
#33
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
QUOTE(Mark Henry @ Apr 21 2021, 07:03 PM) QUOTE(Mblizzard @ Apr 21 2021, 08:49 PM) QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? WW2 war bride from Croydon, just south of London No negativity intended. Simply my relief that we were talking about the same FJ67 injectors, not FJ76, and his helpful advice is valid in my case. |
|
|
|
| Mblizzard |
Apr 22 2021, 04:17 PM
Post
#34
|
|
Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(Mark Henry @ Apr 21 2021, 05:03 PM) QUOTE(Mblizzard @ Apr 21 2021, 08:49 PM) QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? WW2 war bride from Croydon, just south of London Have to get back there. The richness of the culture and some amazing people give me hope. Of course you are a Top Gear Fan? |
|
|
|
| rbzymek |
Apr 22 2021, 04:24 PM
Post
#35
|
|
Member Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest
|
Off topic but our family enjoyed two years there on assignment for Ford. Had a great time in the early 90’s.
|
|
|
|
| mcswiggs |
Apr 23 2021, 01:27 PM
Post
#36
|
|
Newbie Group: Members Posts: 22 Joined: 31-January 18 From: London, UK Member No.: 21,845 Region Association: England |
QUOTE(Mblizzard @ Apr 22 2021, 04:17 PM) QUOTE(Mark Henry @ Apr 21 2021, 05:03 PM) QUOTE(Mblizzard @ Apr 21 2021, 08:49 PM) QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? WW2 war bride from Croydon, just south of London Have to get back there. The richness of the culture and some amazing people give me hope. Of course you are a Top Gear Fan? The BBC exports Top Gear to you? Well I never. I preferred the Clarkson,May, Hammond era, not sure about the current crop of pundits. PS - anymore gen on Fj67 injectors, anyone? |
|
|
|
| Mblizzard |
Apr 23 2021, 01:35 PM
Post
#37
|
|
Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(mcswiggs @ Apr 23 2021, 11:27 AM) QUOTE(Mblizzard @ Apr 22 2021, 04:17 PM) QUOTE(Mark Henry @ Apr 21 2021, 05:03 PM) QUOTE(Mblizzard @ Apr 21 2021, 08:49 PM) QUOTE(Mark Henry @ Apr 21 2021, 02:24 PM) QUOTE(Mblizzard @ Apr 21 2021, 06:18 PM) QUOTE(mcswiggs @ Apr 21 2021, 12:46 PM) Why the negativity? These are a real, dependable, and cost effective option. Not perfect for sure but in the ever dwindling options to keep these cars running these serve a purpose. OP thought he bought the wrong ones that's all. Me mum's a brit, so I know what he meant. (IMG:style_emoticons/default/smile.gif) Never saw that coming. Love the Brits especially a English woman’s accent. But Mark’s mom a Brit? WW2 war bride from Croydon, just south of London Have to get back there. The richness of the culture and some amazing people give me hope. Of course you are a Top Gear Fan? The BBC exports Top Gear to you? Well I never. I preferred the Clarkson,May, Hammond era, not sure about the current crop of pundits. PS - anymore gen on Fj67 injectors, anyone? Yes those were the prime times for Top Gear. Clarkson cocks up about everything but it is a great show. America tried to duplicated and failed famously. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 28th April 2024 - 07:12 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.