Zach's Carbs to Microsquirt conversion thread, 7/20/18 update |
|
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. |
|
Zach's Carbs to Microsquirt conversion thread, 7/20/18 update |
VaccaRabite |
Oct 11 2011, 06:44 PM
Post
#141
|
En Garde! Group: Admin Posts: 13,466 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
I am retrofitting this thread to be my full on conversion thread, documenting my change from dual 40 Webers to MSII fuel injection.
Here is what I have so far, and what I need: HAVE:
Built on 1.7 heads. Jake's 9530 cam (carb cam similar to Web 494) Mallory optical ignition ACCEL (UltraCoil) coil. SSI exchangers for exhaust. My goals for this project are to have near stock intake noise volume, better cold starting - especially in cooler weather, negate the bad effects or Ethanol on carbs, teach myself something about fuel injection. Since I already have a pretty good ignition system, I am not going to go after crank fired ignition at this time, but I am not ruling that out for the future. Before I begin the conversion, I am going to pull the engine and do a little refreshing and cleaning, including:
QUOTE I am getting ready to start my conversion form carbs to EFI. My goal is to use as much stock EQ as I can, but replace the sensors and such with modern, easy and cheaper to find stuff. Plus, since my car has a cam, the stock FI will not work. My engine has 1.7 4 bolt heads. 1) are the 1.7 and 1.8 intake runners the same? 2) Is the intake runner inside diameter smaller then the 2.0 intake runner ID? 3) is the throttle body for the 1.8 smaller then the throttle body for the 2.0? If the 1.8 TB is smaller then the 2.0, can the 2.0 TB be swapped in? Are 1.8 injectors high or low impedance? I am asking this as I will be able to get Joe's discarded 1.8 bits when he pulls his engine and starts going down the 2056 route. Zach |
VaccaRabite |
Mar 8 2013, 09:16 PM
Post
#142
|
En Garde! Group: Admin Posts: 13,466 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Common plenum off a 1.8. The impetus for this was to cut back on the howl ITBs and webers caused.
Jake said that the 1.8 plenum can support up to a 2.4 liter plant, so my little 2.0 should be just fine. Zach |
cgnj |
Mar 10 2013, 05:29 AM
Post
#143
|
Senior Member Group: Members Posts: 627 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None |
Common plenum off a 1.8. The impetus for this was to cut back on the howl ITBs and webers caused. Jake said that the 1.8 plenum can support up to a 2.4 liter plant, so my little 2.0 should be just fine. Zach Zach, where did you find this nugget? Same true for 2.0 plenum? I think 1.8 would be much easier if one was thinking of MAF. Carlos |
VaccaRabite |
Mar 10 2013, 06:22 PM
Post
#144
|
En Garde! Group: Admin Posts: 13,466 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Common plenum off a 1.8. The impetus for this was to cut back on the howl ITBs and webers caused. Jake said that the 1.8 plenum can support up to a 2.4 liter plant, so my little 2.0 should be just fine. Zach Zach, where did you find this nugget? Same true for 2.0 plenum? I think 1.8 would be much easier if one was thinking of MAF. Carlos I have been pondering this project for nearly 2 years now and asked a TON of questions here, STF, and Jake's forums. Jake let me know where he had found the limits of the 1.8 plenum to be, but I forget if it was here or on his forums. Needless to say, my options were a 1.7 plenum or a 1.8 plenum as i have 4 bolt heads. And when i stumbled on a 1.8 full system, I knew where I was going to go. Eventually I do want to build this engine to a 2270 or a 2.3L plant, but there are going to be years inbetween finishing this and doing that. |
Lo-Fi Version | Time is now: 17th June 2024 - 12:49 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 ... |