Staring down the EFI rabbit hole again, /6 intake design, Which way around for the 964 plenums in a 914? |
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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
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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 4 2021, 10:53 AM
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#2
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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 1 day turn around on my SDS ECU,
Daughter board installed, aluminum case drilled and new connector installed. Kit includes a download cable. They didn't update my software but they did send me the how to and links. They did save all the map settings that I'll likely change anyways. I now have full data logging, I'm able to download updates, use different triggers and O2 sensors and a bunch of other small features most l'll likely not use. Ross said it's basically a new ECU. Now need my 964 intake halves and I can figure out what TB I'm going to use. I have a ford 60mm TB but I've also been looking at Honda TB's. I want to pick a TB family with the same bolt pattern the has a couple 65mm thru 75mm sizes so I can experiment. Just measured a 3.6 996 TB and it's 73mm. 3.2 Carrera is 63mm and the 964 3.6 is 68mm. |
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