Staring down the EFI rabbit hole again, /6 intake design, Which way around for the 964 plenums in a 914? |
|
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. |
|
Staring down the EFI rabbit hole again, /6 intake design, Which way around for the 964 plenums in a 914? |
Mark Henry |
Feb 17 2021, 10:34 AM
Post
#1
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
One of the locals fell on some hard times, his plans changed and his 930 was sold, so he offered me a smoking deal on an EFI system.
SDS EM5-F /6 system with twin plug coil packs, Siemens 55lb injectors, cold start valve, crank trigger and /6 trigger mount, extra relay outputs (had meth injection), Beru plug wires X2, manuals, base maps, dizzy hole block off, Bosch one wire (Djet) head temp sender plus all the cabling, fuses, etc that are not included with an SDS system. I already have a Wabro 300hp FI pump, a Djet fuel pressure regulator, 14point7 wideband O2 meter and an O2 bung in both headers. This is not a discussion on which Aftermarket EFI system is better, etc but rather on plenum based intake design. I'm not new. I've been playing with a SDS EM4-F /4 system since 2003-2004 that's now on my '67 bug T4 2600cc conversion, I know that ITB's are better for peak HP, but I'm after overall improvement, usable vacuum signal for MAP, drivability, fuel economy and etc. FYI I have also asked this on the bird board here for some more info on the build. This thread shows my /6 conversion a few years back and has all the engine specs here. Plus I've built my own motorcycle ITB's before here. Please I only want to discuss a single TB plenum based intake for performance EFI. |
Mark Henry |
Mar 18 2021, 11:44 AM
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 |
So I'll be making something like below, what way do I orient the plenums and TB ?
I think the pic below is for a 911, do I reverse the plenums to fit the 914? Which way would you plumb the TB forward or to the rear? (IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1614451322.1.jpg) |
ClayPerrine |
Apr 24 2021, 08:16 PM
Post
#3
|
Life's been good to me so far..... Group: Admin Posts: 15,470 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
So I'll be making something like below, what way do I orient the plenums and TB ? I think the pic below is for a 911, do I reverse the plenums to fit the 914? Which way would you plumb the TB forward or to the rear? (IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1614451322.1.jpg) You can't flip the intake manifolds.. they won't fit over the fan shroud if you do. Just tilt the top one down so that it clears the engine lid with the boot on it. I had mine reversed and the throttle body facing forward, but I found out I need to have it to the rear to get the heater blower hooked up. And a stock 914-6 cable will hook up to the factory 964 throttle body with no issues. If you need pictures, I can take them. Clay |
Lo-Fi Version | Time is now: 18th May 2024 - 10:48 PM |
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 ... |