![]() |
|
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. |
|
![]() |
Rod |
![]()
Post
#1
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England ![]() |
I need one injector for my 1973 D-Jet. Quick question though - should I replace all at the same time?
Is there anywhere anyone over there that can get these sent out to me quickly?? |
![]() ![]() |
Rod |
![]()
Post
#2
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England ![]() |
One more question. The injectors I have in there at the moment, installed by the po are green, not yellow... Now these are 2.0 injectors yep?? So what would these run like in a 1.7L? Surely it should flood it, but it seems to run fine???
Do I have a 2.0 engine? (IMG:style_emoticons/default/smile.gif) |
underthetire |
![]()
Post
#3
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California ![]() |
Don't know if it would flood it, pressure could have been lowered. Even if it wasn't, I would think it would just run rich. Take a picture and post it, and see if the intake to heads are 3 stud or 4. Here is a handy but overwhelming injector chart.
http://users.erols.com/srweiss/tableifc.htm |
Rod |
![]()
Post
#4
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England ![]() |
No it's deffo a 1.7, the airfilter is 1.7!! If it were changed to a 2.0 at some stage in it's life, then the 1.7 airfilter would not have fitted.
So I have a 1.7 running 2.0 injectors... You mentioned about the pressure being lowered - how/where? Reversible?? |
underthetire |
![]()
Post
#5
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California ![]() |
No it's deffo a 1.7, the airfilter is 1.7!! If it were changed to a 2.0 at some stage in it's life, then the 1.7 airfilter would not have fitted. So I have a 1.7 running 2.0 injectors... You mentioned about the pressure being lowered - how/where? Reversible?? There is a test port on the injector rail, drivers side. Has a small bolt with a copper crush gasket under it. Remove that, put a pressure gauge on it and adjust the fuel pressure regulator, the reg is hooked up right before the drivers side rail. Has a bolt head with a locknut on it. In=more pressure, out=less. Stock they are supposed to be ~ 29PSI i believe. ( sorry, stuck in us standard hell, 2 bar). |
SLITS |
![]()
Post
#6
|
"This Utah shit is HARSH!" ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None ![]() ![]() |
Each injector has a flow rate in cc/min or lbs/hr. Given equal pressure, the green would flow more fuel than the yellow for a given pulse width.
Reducing the pressure would decrease the amount of fuel per pulse width. Unless you have read the Bosch numbers on the injectors, you have no information. Color used to mean something, but aftermarket injectors could be any color. |
JamesM |
![]()
Post
#7
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,082 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region ![]() |
Black and yellow are 265 cc/m, green are 380 cc/m so you will be quite a bit richer if you are running 2.0 injectors on an otherwise stock 1.7 system.
Never say never, I have built a setup using 1.7 intake parts on a 2.0 motor had to drill for the 3 bolt heads though. Even if it has the 1.7 heads someone might have bumped the displacement. Or worse you could have a 2.0 bus motor, all the 1.7 intake parts bolt right up to that. Pretty sure it would be real hard running a true 1.7 with 2.0 injectors without it being total crap as the green injectors are huge even for a 2.0. Do you have any pics of your engine/injection setup? |
Mr Pharmacist |
![]()
Post
#8
|
Member ![]() ![]() Group: Members Posts: 69 Joined: 15-September 09 From: United Kingdom Member No.: 10,807 Region Association: England ![]() |
Hi Rod, if you do need a 1.7 injector i think i have a couple of used ones that i can try and find and could post to you tomorrow so you should have them by the weekend if that'd be of any use?
Stuart |
Rod |
![]()
Post
#9
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England ![]() |
Hello Mr pharmacist! Didn't realise you were on 914W?? That is very kind of you, but I ordered today from Roger Bray. (IMG:style_emoticons/default/smile.gif)
They will be in the post to me tomorrow too, butane thanks anyway!! And mistake, they are black not green, so do have the correct flow rate. |
Mr Pharmacist |
![]()
Post
#10
|
Member ![]() ![]() Group: Members Posts: 69 Joined: 15-September 09 From: United Kingdom Member No.: 10,807 Region Association: England ![]() |
Hello Mr pharmacist! Didn't realise you were on 914W?? That is very kind of you, but I ordered today from Roger Bray. (IMG:style_emoticons/default/smile.gif) They will be in the post to me tomorrow too, butane thanks anyway!! And mistake, they are black not green, so do have the correct flow rate. Hi Rod, I do a lot of lingering here finding out info for my slow resto, but don't post much! (IMG:style_emoticons/default/smile.gif) |
dr914@autoatlanta.com |
![]()
Post
#11
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None ![]() |
I would replace only the one. The rebuilt one is the best way to go., WE have at least 70 on the shelf and can still send out today. They include the bent hose as well as the large and small injector seal.
I need one injector for my 1973 D-Jet. Quick question though - should I replace all at the same time? Is there anywhere anyone over there that can get these sent out to me quickly?? |
dr914@autoatlanta.com |
![]()
Post
#12
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None ![]() |
green are for the 2.0 and yellow for the 1.7 and the turquoise or beige with a different head fitting are for the 1.8 models.
One more question. The injectors I have in there at the moment, installed by the po are green, not yellow... Now these are 2.0 injectors yep?? So what would these run like in a 1.7L? Surely it should flood it, but it seems to run fine??? Do I have a 2.0 engine? (IMG:style_emoticons/default/smile.gif) |
dr914@autoatlanta.com |
![]()
Post
#13
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None ![]() |
Roger is a good guy and you cannot go wrong shopping with him.
Hello Mr pharmacist! Didn't realise you were on 914W?? That is very kind of you, but I ordered today from Roger Bray. (IMG:style_emoticons/default/smile.gif) They will be in the post to me tomorrow too, butane thanks anyway!! And mistake, they are black not green, so do have the correct flow rate. |
dr914@autoatlanta.com |
![]()
Post
#14
|
914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None ![]() |
Black ones are actually 311 injectors from a vw. They will work ok for the 1.7 models.
Hello Mr pharmacist! Didn't realise you were on 914W?? That is very kind of you, but I ordered today from Roger Bray. (IMG:style_emoticons/default/smile.gif) They will be in the post to me tomorrow too, butane thanks anyway!! And mistake, they are black not green, so do have the correct flow rate. |
realred914 |
![]()
Post
#15
|
Senior Member ![]() ![]() ![]() Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None ![]() |
I need one injector for my 1973 D-Jet. Quick question though - should I replace all at the same time? Is there anywhere anyone over there that can get these sent out to me quickly?? urgent need of injector in the UK!!!!, golly anything for Queen and Country!!!! God save the Queen. send yoru injectors now the UK needs them!!!! anyway hope you get them, i have no spares (IMG:style_emoticons/default/drunk.gif) (IMG:style_emoticons/default/drunk.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/av-943.gif) |
Rod |
![]()
Post
#16
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England ![]() |
I need one injector for my 1973 D-Jet. Quick question though - should I replace all at the same time? Is there anywhere anyone over there that can get these sent out to me quickly?? urgent need of injector in the UK!!!!, golly anything for Queen and Country!!!! God save the Queen. send yoru injectors now the UK needs them!!!! anyway hope you get them, i have no spares (IMG:style_emoticons/default/drunk.gif) (IMG:style_emoticons/default/drunk.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/chair.gif) (IMG:style_emoticons/default/chair.gif) Sorted now, got some from Roger Bray restorations in Blighty (IMG:style_emoticons/default/smile.gif)(IMG:style_emoticons/default/smile.gif) |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 11th May 2025 - 10:11 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |