Calling aftermarket FI type 3s...

c.ruber · Posted: Thu Oct 23, 2014 1:08 pm Post subject: Calling aftermarket FI type 3s...

I'm interested in doing a FI conversion on my '66 square. Inspire me with some pics and info that would be helpful with my build.
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...and progress is not intelligently planned...

eyetzr · Posted: Thu Oct 23, 2014 1:14 pm Post subject:

I guess the question is, stock or aftermarket build. Stock would be the first way as parts are still out there & service manuals only show that, Tram will say "stockity stock stock". Some guys like the Djet approach. Lots of people here to help you along. Best of luck
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I think he meant "rare", as in "not well-done"

vwfye · Samba Member Joined: April 15, 2000 Posts: 7661

Stand alone stuff is nice too if you have the $ as the wires, brain and bits will all be fresh. Heck, if I could afford it, all my stuff would go aftermarket EFI now.
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64 No'back Speedster "Pearl"
1980s Sand Dragster "The Plunger"
LME "Little Giant Killer 3"

Tram

Bobnotch · Posted: Thu Oct 23, 2014 1:52 pm Post subject:

My first question is; What size engine do you want to run in the car? I'm only asking that, as that'll determine which FI system to use.
A 1600 to 1776 can either go with stock D-jet, or modified MegaSquirt using D-jet hard parts (plenum and runners).
Above 1776, then you'll want ITBs, running MS or 1 of the other aftermarket brand FI systems like the CB Performance set up.
I only say that, as the stock D-jet plenum and runners limit the engine size to 1776 and smaller (runs out of breathing air).
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Bob 65 Notch S with Sunroof
71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120

c.ruber · Posted: Thu Oct 23, 2014 2:56 pm Post subject:

I'm starting with a 1679 with 8.5:1 cr and an Engle 110 cam. Future will be a 1904. I want to cut the teeth on the 1679 and go from there. ITBs to start so I can also use them on the larger engine when it comes time for the swap. I realize there will be necessary upgrades otherwise as well. thanks for any info... or pics to stir the imagination.
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...and progress is not intelligently planned...

W1K1 · Posted: Thu Oct 23, 2014 3:25 pm Post subject:

Tram · Posted: Thu Oct 23, 2014 4:39 pm Post subject:

Nate M. · Posted: Thu Oct 23, 2014 4:42 pm Post subject:

Keep in mind that D-jet is very sensitive to cam changes due to the vacuum signal that feeds info to the MPS. For this reason for proper operation you need either a stock cam or a "cheater" cam (which keeps the valve timing stock but gives more lift).

IMHO, I'm a big believer in the philosophy of "Buy the best and cry once". A Megasquirt system that uses ITBs and controls spark will not only clean-up the engine compartment, but will be able to grow with you as you change engines in the future and even when you change cars.

D-jet works great for stock, but that's not currently what you have and not what you plan on having in the future. This is my MS3X, ITB & COP equipped engine (a type4 but a similar look to a type3).

Image may have been reduced in size. Click image to view fullscreen.

Talk to Mario here and he'll set you up with a system that will fit your needs: www.thedubshop.net
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Regards,

Nate M.

Squarsche build
Heavy Metal Affliction feature

For heaven's sake, put a type4 and a Porsche 5-speed in there. . . It's the right thing to do!!

c.ruber · Posted: Thu Oct 23, 2014 7:10 pm Post subject:

Thanks for the input. May I ask about some FI terminology?? What is COP? What is available for ignition on a type 3 running aftermarket FI?
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...and progress is not intelligently planned...

Nate M. · Posted: Thu Oct 23, 2014 8:04 pm Post subject:

Intrinsic · Posted: Fri Oct 24, 2014 5:20 am Post subject:

I have installed the MegaSquirt on my Fastback. My MS has been faultless for well over a year and controls both fuel and spark in full feedback using a wideband O2 sensor. IM me if you have any questions.

supersuk · Posted: Fri Oct 24, 2014 10:26 am Post subject:

I have megasquirt 2 installed in my fasty too. I'm currently redoing the system to get rid of the dual 45mm throttle bodies. I found that with my 1904 and the dual 45mm throttle bodies, I don't get a very good vac signal. I get just enough to allow the system to run decent. You can tune without the map signal, but its not as good. The entire complete system will be removed and sold. This setup will be good for a 2110cc+ engine.

The new system is going to use a microsquirt with my own custom breakout board that will allow all the electronics to go into the OEM d-jet ecu enclosure. The induction system is being changed to a single throttle body conversion using the OEM FI intake runners and a custom throttle body. I'm going turbo so the single throttle body will simplify everything. A post on my build thread will be coming up soon to document all the mods.

Also, if you want to go to aftermarket FI, you will need a trigger wheel. I have 4 left before its all sold. I do not plan to make more of these so get them while it lasts.
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68 Fastback Build: http://www.thesamba.com/vw/forum/viewtopic.php?p=5396323#5396323


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