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 |
Feb 17 2021, 10:49 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 |
I could just buy an intake but holy carp have you seen the prices peeps want for 3.6-up Porsche /6 intake? Evil bay I see $600 to 1200 which will be $1000 to $2000 Canadian and I'd still have to fab the injector/head flanges, the TB, clamps, hoses, crossover, etc...so fuchs that.
So unless someone wants to donate a plastic 993 intake or GT3 intake to my cause I think I'm on my own. Porsche plastic 3.6, is it from a 993 or is this 964? (IMG:http://www.914world.com/bbs2/uploads_offsite/i.ebayimg.com-26-1613580571.1.jpg) What I'll likely do is a mild steel manifold similar in construction to some of the aircraft intakes that SDS has made. (IMG:http://www.914world.com/bbs2/uploads_offsite/www.sdsefi.com-26-1613580572.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/www.sdsefi.com-26-1613580572.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/www.sdsefi.com-26-1613580573.4.jpg) But I think I'll keep the two separate intake halves like Porsche does. Maybe a mustang 75mm TB? Any one wish to add their 2 cents on a intake design? |
Steve |
Feb 18 2021, 09:18 AM
Post
#3
|
914 Guru Group: Members Posts: 5,589 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
[quote name='Mark Henry'
But I think I'll keep the two separate intake halves like Porsche does. Maybe a mustang 75mm TB? Any one wish to add their 2 cents on a intake design? [/quote] PRO-M had a 80mm? Mustang MAF kit with MAFTuner for my 3.2. I had it on my car and it did breathe better. At the time I didn’t have a air/fuel gauge and was paranoid, so I took it off. I now have a gauge. The plan is to wire it up and put the MAF back on. http://www.promracing.com/pro-m-racing-mass-air-meters.html http://www.mustangandfords.com/how-to/inte...pro-m-maf-tuner |
Lo-Fi Version | Time is now: 19th May 2024 - 12:31 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 ... |