 Stock injectors on a 2.1L?, Instead of webers |
|
|
|
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. |
|
|
| mtndawg |
 Sep 21 2014, 04:39 PM
Post
#1
|
|
Member  Group: Members Posts: 414 Joined: 26-January 09 From: Granite Bay, Ca Member No.: 9,985 Region Association: None 
 |
I recently acquired a car that was originally a 2L and have been told the engine size has been changed to 2.1, which I have not checked yet? The engine currently has webers. Can I use stock d-jet FI if it is 2.1?
|
   |
 
|
  |
Replies(1 - 6)
| Mark Henry |
Sep 21 2014, 04:41 PM
Post
#2
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
If it has a carb cam ...then it's no.
|
|
|
|
| Dtjaden |
Sep 21 2014, 06:19 PM
Post
#3
|
|
Member Group: Members Posts: 232 Joined: 25-May 13 From: Morgan Hill, CA Member No.: 15,915 Region Association: Northern California |
What you can do is use most of the stock d-jet components except the ecu, cold start valve and throttle position sensor and then add an aftermarket ecu, Megasquirt in my case, with a few newer sensors for throttle position and intake air temperature.
This can be done for as little as $500 if you DIY or as much as $2,500 if you have someone do the work for you. As far as the injectors are concerned the 2 liter d-jet injector flow rate is sufficient to support almost 200 hp. |
|
|
|
| worn |
Sep 21 2014, 06:54 PM
Post
#4
|
|
can't remember Group: Members Posts: 3,373 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
|
QUOTE(Mark Henry @ Sep 21 2014, 02:41 PM)  If it has a carb cam ...then it's no. (IMG:style_emoticons/default/agree.gif) So if you can find out about that detail you have an answer. Yes, I have a 2056 running stock FI, but working around an aftermarket cam has been tricky. Impossible if the cam were designed to take advantage of the Webers. |
|
|
|
| Mblizzard |
Sep 22 2014, 04:51 AM
Post
#5
|
|
Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
The newer FJ67 injectors that are sold as replacements for the Bosch have slightly higher flow rates. I am running a 2056 with stock FI and cam with no issues.
|
|
|
|
| barefoot |
Sep 22 2014, 05:48 PM
Post
#6
|
|
Senior Member Group: Members Posts: 1,334 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
|
If you're after a cheap option to try, you can increase the fuel pressure to the injectors by adjusting the pressure regulator. Probably best to install a pressure gage in there to what you're doing. Remember that flow rate is proportional to the square root of pressure to your injectors, thus is you want 10% more flow you need to increase pressure by 1.1 squared, or 21%.
Since you're only increasing displacement by 5%, in theory you'll only need 10.25% pressure increase. Not sure just how much a stock pump is capable of putting out however, no experience there. |
|
|
|
| aircooledtechguy |
Sep 23 2014, 09:16 AM
Post
#7
|
|
The Aircooledtech Guy Group: Members Posts: 1,966 Joined: 8-November 08 From: Anacortes, WA Member No.: 9,730 Region Association: Pacific Northwest |
QUOTE(Dtjaden @ Sep 21 2014, 05:19 PM) What you can do is use most of the stock d-jet components except the ecu, cold start valve and throttle position sensor and then add an aftermarket ecu, Megasquirt in my case, with a few newer sensors for throttle position and intake air temperature. This can be done for as little as $500 if you DIY or as much as $2,500 if you have someone do the work for you. As far as the injectors are concerned the 2 liter d-jet injector flow rate is sufficient to support almost 200 hp. (IMG:style_emoticons/default/agree.gif) Tunable EFI is the way to go IMHO. At least look into it. . . |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 26th December 2024 - 10:27 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.