 2056 Ljet, MPG? |
|
|
|
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. |
|
|
| Geezer914 |
 Apr 14 2023, 03:11 PM
Post
#1
|
|
Geezer914  Group: Members Posts: 1,433 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States 
 |
Running a 2056 with Ljet, 9550 cam, 50mm TB, and 9:1 CR. Getting just over 15 mpg. Plugs look good, slight tan. Thoughts?
|
   |
 
|
  |
Replies
| Chris914n6 |
Apr 15 2023, 12:58 PM
Post
#2
|
|
Jackstands are my life. Group: Members Posts: 3,328 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Are you using 1.8 injectors or 2.0?
2.0 will likely flow more per squirt which would cause richness. |
 |
|
| ClayPerrine |
Apr 16 2023, 10:19 AM
Post
#3
|
|
Life's been good to me so far..... Group: Admin Posts: 15,501 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
|
QUOTE(Chris914n6 @ Apr 15 2023, 01:58 PM)  Are you using 1.8 injectors or 2.0? 2.0 will likely flow more per squirt which would cause richness. L-Jet injectors are not compatible with D-Jet injectors. The are electrically different. The stock L-Jet injectors were right at the limit on a stock 1.8L engine. Use the injectors from a 912E (same injectors were used on a 1980 Nissan 280ZX) Standard Motor Products Fuel Injector Part Number: 6639-05181321 Brand: Standard Motor Products They flow more than the stock 1.8L injectors, and will correct for the cam and additional displacement of the modified engine. An aftermarket fuel pressure regulator does not have the vacuum connection to adjust the fuel pressure upwards at high vacuum conditions. That would account for the running lean at idle. Use the stock pressure regulator, but bigger injectors. Clay |
|
|
|
| wonkipop |
Apr 16 2023, 05:55 PM
Post
#4
|
|
Advanced Member Group: Members Posts: 4,367 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille
|
QUOTE(ClayPerrine @ Apr 16 2023, 10:19 AM) QUOTE(Chris914n6 @ Apr 15 2023, 01:58 PM) Are you using 1.8 injectors or 2.0? 2.0 will likely flow more per squirt which would cause richness. L-Jet injectors are not compatible with D-Jet injectors. The are electrically different. The stock L-Jet injectors were right at the limit on a stock 1.8L engine. Use the injectors from a 912E (same injectors were used on a 1980 Nissan 280ZX) Standard Motor Products Fuel Injector Part Number: 6639-05181321 Brand: Standard Motor Products They flow more than the stock 1.8L injectors, and will correct for the cam and additional displacement of the modified engine. An aftermarket fuel pressure regulator does not have the vacuum connection to adjust the fuel pressure upwards at high vacuum conditions. That would account for the running lean at idle. Use the stock pressure regulator, but bigger injectors. Clay @ClayPerrine how do those 912E injectors go on a standard 1.8? out of interest. (IMG:style_emoticons/default/driving.gif) |
|
|
|
| ClayPerrine |
Apr 17 2023, 05:57 AM
Post
#5
|
|
Life's been good to me so far..... Group: Admin Posts: 15,501 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
|
QUOTE(wonkipop @ Apr 16 2023, 06:55 PM) how do those 912E injectors go on a standard 1.8? out of interest. (IMG:style_emoticons/default/driving.gif) They are a 100% bolt on solution. The 912E used L-Jet injection, and the injectors are are, other than the flow rate, identical to the 914 1.8L injectors. I have a set on the engine from Betty's car. |
|
|
|
| wonkipop |
Apr 18 2023, 06:06 PM
Post
#6
|
|
Advanced Member Group: Members Posts: 4,367 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille
|
QUOTE(ClayPerrine @ Apr 17 2023, 05:57 AM) QUOTE(wonkipop @ Apr 16 2023, 06:55 PM) how do those 912E injectors go on a standard 1.8? out of interest. (IMG:style_emoticons/default/driving.gif) They are a 100% bolt on solution. The 912E used L-Jet injection, and the injectors are are, other than the flow rate, identical to the 914 1.8L injectors. I have a set on the engine from Betty's car. thanks mate. (IMG:style_emoticons/default/beerchug.gif) because you know why i asked. (IMG:style_emoticons/default/w00t.gif) |
|
|
|
Posts in this topic
Geezer914 2056 Ljet, MPG? Apr 14 2023, 03:11 PM
GregAmy Seems way low, John...unless you're driving th... Apr 14 2023, 03:13 PM StarBear @Saigon71 ? :blink: Apr 14 2023, 03:16 PM
saigon71
[b]@[url=http://www.914world.com/bbs2/index.php?s... Apr 16 2023, 05:26 AM VaccaRabite You should be getting at least 25mpg. I suspect yo... Apr 14 2023, 03:31 PM BeatNavy Any other issues that could cause this? Really ba... Apr 14 2023, 03:45 PM jim_hoyland Ave 20ish; got 25 yesterday driving to Idyllwild Apr 14 2023, 03:46 PM Geezer914 I'll hook up the O2 meter and see where I am a... Apr 14 2023, 05:51 PM brant
I'll hook up the O2 meter and see where I am ... Apr 15 2023, 08:39 AM worn
I'll hook up the O2 meter and see where I am... Apr 21 2023, 06:19 PM emerygt350 Can't trust the O2 in that way. Particularly ... Apr 14 2023, 06:32 PM wonkipop i got a stock unmolested 1.8 L jet.
best i get at ... Apr 14 2023, 09:21 PM worn This is only relevant in terms of energy needed to... Apr 14 2023, 10:18 PM r_towle Back when I was doing deep learning of all the way... Apr 14 2023, 10:44 PM Geezer914 Taking Clay's advice and reset the the large w... Apr 15 2023, 08:31 AM anderssj 2.0 with Elgin cam, dells, Mahle Euro P/C set, Bos... Apr 15 2023, 09:09 AM Geezer914 With an AFR gauge hooked up, what AFR reading shou... Apr 15 2023, 09:24 AM DRPHIL914
With an AFR gauge hooked up, what AFR reading sho... Apr 15 2023, 12:14 PM emerygt350 If it is telling you the truth, 14 would be fine. ... Apr 15 2023, 11:33 AM Geezer914 AFM set back to normal, hooked up the AFR meter an... Apr 15 2023, 11:54 AM DRPHIL914
AFM set back to normal, hooked up the AFR meter a... Apr 15 2023, 12:17 PM Geezer914 1.8 injectors. AFR at idle is around 15.9, normal... Apr 15 2023, 01:17 PM Geezer914 Tweaking the fuel pressure and got the AFR to read... Apr 16 2023, 06:08 AM Geezer914 I called Standard Motor Products and they said the... Apr 18 2023, 05:24 PM ClayPerrine
I called Standard Motor Products and they said th... Apr 19 2023, 05:24 AM Geezer914 They said the tips and the cone are different, but... Apr 19 2023, 09:26 AM technicalninja
An aftermarket fuel pressure regulator does not ... Apr 19 2023, 12:32 PM ClayPerrine
I'd believe Clay over almost anyone regardin... Apr 19 2023, 02:27 PM Geezer914 I have all the respect for Clay. Just quoting the... Apr 19 2023, 03:30 PM wonkipop @Geezer914
Apr 19 2023, 07:30 PM technicalninja Just checked the Z injectors. 185cc for non-turbo ... Apr 19 2023, 08:17 PM ClayPerrine I will be the first to admit I could be wrong on t... Apr 20 2023, 06:02 AM emerygt350 Don't trust that afr too much. Keep an eye on... Apr 21 2023, 01:15 PM Geezer914 Email from Standard Motor Products Apr 26 2023, 01:53 PM r_towle super accurate tuning, at least on these cars, was... Apr 26 2023, 02:16 PM |
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 1st June 2024 - 08:17 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.