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zKars

Finally Taking the Plunge - EFI

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Well I decided to jump into the EFI game with both feet.

Here is what changed this "old school" boy's mind. 

Weber look-a-like throttle bodies with built in injectors and TPS.  Jenvey Heritage Throttle bodies is what they go by. 

I get the old look I can't seem to do without, with all the modern advantages of EFI.

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You may notice that there are only two, and this is a Z forum, but as most of you know there is 510 lady in my life that I'm currently enfatuated with. I can always buy another one if I ever come to my senses.

 These are 45mm with 350cc/hr injectors. Should do.

 

IMG_3750.JPG

https://www.onesixindustries.com/products

Edited by zKars
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On the other side of the motor I plan to tuck a set of LS Coil-on-plug coils and time it all with a OneSix Industries new distributor replacement 'Crank Angle Sensor ' that has a pair of trigger wheels for full sequential injection. No holes barred, this thing is going modern. I may have to glue a dizzy cap on it to keep the old look going. Bad enough to do COP on the plug side.

https://www.onesixindustries.com/products

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One might this a bit pricey, but once again the Canadian - Aussie connection wins as it is $400 AUD, which is actually just under par with CAD, so I win! 

Any of you yanks can cash in even better with your 35% advantage. 

 

Edited by zKars
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The EMS is a bit up in the air. Mega Squirt is good, but there are others that do this well as well. Most of local support (other fools who have done this before) have used MegaSquirt, so that's the likely choice. 

SDS is based in Calgary. They are tempting too, but not as versatile.

My friend with dyno that will tune it is a Haltech expert, so that may win. We'll see.

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Be sure and post up lots of pics and info! That way I can crib off of you on Cody's upcoming build. 😛 His motor only has so many miles left in it...

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This is going to be a fun project to watch! Way to go modern Jim.

Edited by Diseazd

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This will be a discovery trip for all of us. I'll keep the thread populated as best I can.

EFI fuel supply is the next topic.  Many options are available, but there are two main competitors.

1. External swirl pot with internal EFI pressure pump, fed by exisiting low pressure carb pump. Two pumps, lots of connections, extra can to mount and hide, not ideal.  Something like this.  http://www.burtonpower.com/efi-fuel-pump-and-swirl-pot-assembly-wfp600.html

2. Install an Internal hi pressure EFI pump. Quiet, cool running, just one pump, but need to add some baffling or swirl pot and of course cut up a good tank. Definitely the cheapest solution but requires the tank be modified. Have lots of tanks to hack up. Will also install modern fuel level sender at the same time. TanksInc.com has a good option. http://www.tanksinc.com/index.cfm/page/ptype=product/product_id=84/mode=prod/prd84.htm

Holley just came out with a fuel tank "mat' (HydraMat) that covers the bottom of the tank and soaks up fuel like a sponge. Any fuel in the tank is soaked up and available to the pump. The ultimate in anti-slosh, anti-starvation device. Not cheap, but an excellent solution for putting efi pumps in non-or minimally baffled tanks.  https://www.holley.com/products/fuel_systems/hydramat/hydramats/

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Both the intake pump by tanks inc and the Holley blanket are really cool. The Holley is really neat in that the whole thing doesn't need to be submerged. The Holley video was fascinating although it sounds like the GPM volume of the fuel pump can over come the surface tension of the fuel blanket if it's not sized properly. Not cheap but neat tech!

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Way to go Jim! I am very excited to see this install. I like the crank angle sensor idea... very clean.

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Jim, although I tune a lot of MS systems. I would seriously suggest you take a good hard look at the Haltech Elite 750. Specifically designed for 6 cylinder motors with 6 Logic coil drivers and 6 Injector drivers capable of driving high or low impedance injectors.

 You can have Full sequential injection with Direct Fire COP with that Fancy Smancy dizzy thingy. 

 Note: The advertising makes it look like it can only drive low impedance injectors. ( I found that very strange ) , but when you look at the full specs you can see that it also will drive High impedance injectors. That makes more sense, as Hi-Z injectors draw much less current than Low-Z injectors.

Overview of Elire 750:

https://www.haltech.com/overview-elite-750/

Full specs:

HT-150600_PS.pdf

 

 

Edited by Chickenman

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6 hours ago, Patcon said:

Both the intake pump by tanks inc and the Holley blanket are really cool. The Holley is really neat in that the whole thing doesn't need to be submerged. The Holley video was fascinating although it sounds like the GPM volume of the fuel pump can over come the surface tension of the fuel blanket if it's not sized properly. Not cheap but neat tech!

Was just tuning a Customers car in Portland last night.AFR started going lean for some reason.  Race car with Fuel cell and Holley Hydra-Mat. There was like NO fuel showing in the fuel Cell. Just what was absorbed in the Hydra-Mat. Amazing!!! 

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Richard, I will indeed be using your services regardless of which system I go with. This does l'ean' me in the haltech direction 😉 

You mention the 6 cylinder preference, and reading the webpage it clearly best for 6, but there is a statement in the 'Engine Suitability" section that says 'basic 4 and 6 cylinder engines' so it will be fine regardless, and would suit whatever I do in the future.

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Jim. Is this for a 4 banger or 6 cylinder motor.? The haltech 550 would do for a 4 banger. And it's cheaper...

Edited by Chickenman

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Four banger. Can't afford three of those Jenvey TB's. ;O

Edited by zKars

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On 8/15/2018 at 9:30 PM, zKars said:

 No holes barred, this thing is going modern.

 

Ahmmm.... direct chamber injection from a 2018 civic turbo sir? 🙂

Just teasing.  I am excited as the rest of the gang here... go Jim go!  We will all learn together.

gojimgo.jpg

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I used the Tank inc for my EFI Z. So far very happy with the results. Tank Inc version does require cutting into a tank. The Holley mat would probably eliminate posssibility of cavitation, but I have yet to starve my motor out yet and I run it low on gas a lot. 

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I've ordered the tanks-inc pump. Great feedback about your pump's performance in low fuel Steve. It has a small baffle tub and a sock - like thing on the inlet so it should be ok in all but near-near-near zero fuel situations.

Actually my favorite way to be caught in the "Im out of gas again!?!?!?!  Nooooooo"  situation is to have everything going fine, then start going up a hill.... That last quart sloshes to the back, and the damn car dies; half way up said hill;  and funny thing you can't push that Datsun that is now blocking traffic on the busiest freeway in town up that same said hill and out of the freaking way...... because you're on a hill !!!!  Arghhhhh". I'm moving back to southern Saskatchewan where there are no hills. Or trees. 

Oh right, the point of that copious rambling.  Going to mount the pump in the BACK of the tank rather than in the middle. Going DOWN a hill and running out of gas is actually fun.

Edited by zKars
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Running out of Gas at the wrong time cost me a head gasket on my 280Z......  Low fuel> Fuel slosh> Lean Detonation> Oh Snap!!! 

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I have a 1976 280Z. Fuel sending unit and fuel lines are on the front side of the tank. ( 77 and 78 are on top )  I'm wondering if there is enough room on Top of the Fuel Tank to install a Tank Inc  Universal kit? 

Anyone done this conversion on a 75 or 76 280Z tank? 

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Sending unit is still in the same place right? I think there would enough room. 

If you were worried about room for the lines clearing the body -between the tank and body- you could adjust where the tank sits . You could lower the tank by not tightening the J hooks all the way

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I have this intank unit in my 76 tank that is shoe horned into my 73 Z. It does fit in and snuggle next to the stock level sender without it rubbing on the intank pump hardware. If you put it in the right place. I got lucky. Let me see if I can find the pictures.

I did have to cut a small hole in the hatch floor to clear the fittings on top if the tank. Maybe in a real 76 there would be room, but I doubt it.

Okay here is a picture of where it goes.

56E61DF3-B9D5-40B6-A3C7-71C016E7864C-1540-00000114771450FE.jpeg

Edited by zKars

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