Anyone running EFI in there T bucket? I was looking at a powerjection 3 kit (http://www.retrotekspeed.com/products/powerjection-iii/powerjection-iii-system.html) because it looks pretty simple, but I was worried that a O2 sensor would look bad on a pair of side pipes. Any one have pics of how they mounted an O2 sensor?
EFI in a t bucket?
- Thread starter Paulski
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old round fart
Well-Known Member
If you put the sensor right next to the exaust system brace, you could hide the wire inside the brace and you would never notice it.
referencing the above pic, keep in mind that for better 0-2 sensor life it should be installed with the connector end pointed up at at least a 15-20* angle. otherwise condensation can collect in the sensor head and shorten it's lifespan conciderably.
Also wouldn't hurt to install it a couple inches further downstream for better cylinder "averaging" IMHO.
.02,
Russ
Also wouldn't hurt to install it a couple inches further downstream for better cylinder "averaging" IMHO.
.02,
Russ
Yep, I'm running EFI and a Blower. I'm using the Accel DFI Gen VII ECU and Wideband O2 module.
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Holley used to have some FI systems that did not use O2 sensors. Natually they did not have a feed back system, but I am running the Projection system on a 66 Mustang and am well pleased with its operation. It starts like a FI engine, idles like a stocker, and runs very well.
Wild Mango
Member
If you want a bit more all my own work input, look at Megasquirt. Megasquirt is made as a kit you can solder up yourself. Or you can buy built up units. Great to learn with and fun to set up if you like stuff like that. Simple or complex as you want to make it. And the system works as well as any other with the added advantage that you can set it up yourself, all you need is a laptop, download the software for free. I built a system for a customer that looked like 2 X 4 barrels on a tunnel ram with the injectors hidden in the float bowls (had to extend them a bit with thicker fake jet blocks). Works like hot damn and still looks cool.
Chief-T
Member
Grant, how about re-posting that photo of your O2 sensor in the header.
Yep, I'm running EFI and a Blower. I'm using the Accel DFI Gen VII ECU and Wideband O2 module.
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[/quote]
Yep, I'm running EFI and a Blower. I'm using the Accel DFI Gen VII ECU and Wideband O2 module.
Photo Album
[/quote]
not mine but here are some pics.
they are of totals tangerine t
That is so cool, an emission compliant- clean burning next generation hot rod, and it looks killer.
I started putting the kit together on my T, and am at the part of getting the O2 sensor on there. The kit comes with a threaded metal piece that is made to clamp to the outside of the exhaust pipe with two hose clamps and a gasket instead of welding to the pipes. It looks bulky to me, but my headers are already ceramic coated. I dont want to weld and destroy the coating (although I'm fearful thats whats its going to come down to!!. I was thinking of welding a bung to the inside of a piece of exhaust pipe (only a couple of inches of its circumference, not 360* of pipe) with an OD the same as the header collector ID and placing that on the inside of the header so it acts like a nut on the inside of the collector. When I tighten the O2 sensor, it will pull the welded bung and pipe against the inside of the collector. The only issue I see is getting a good seal. I can cut up an exhaust gasket to sandwich between the two pipes or use the copper RTV. Any thoughts if this will work?
Rainmaker
New Member
I am running 302 EFI and I have O2 bungs in my side pipes and have over 5000 miles on it and most people don't even notice it.
Here are some progress pics while I figure out my O2 dilemma.
I decided to go with an intank fuel pump instead of the external mount one the powerjection kit came with, I had to cut out a 4 1/2" mounting hole in the tank:
Trunk back together, fuel fill is behind trap door:
Than I ran another hard line along the frame to the engine where it connects to some flex hose and then to some bulk heads on a bracket I made where the old mechanical fuel pump was:
All that is left is to run a vac hose to the PCV and mount the O2 sensor. All the wiring was simple and is done.
I decided to go with an intank fuel pump instead of the external mount one the powerjection kit came with, I had to cut out a 4 1/2" mounting hole in the tank:
Trunk back together, fuel fill is behind trap door:
Than I ran another hard line along the frame to the engine where it connects to some flex hose and then to some bulk heads on a bracket I made where the old mechanical fuel pump was:
All that is left is to run a vac hose to the PCV and mount the O2 sensor. All the wiring was simple and is done.
Differen T
Member
I think that the threads on the O2 sensor are pipe threads which are designed for sealing, not for clamping, thus making it hit or miss for getting a tight seal. I'm facing the same situation on Differen T as I want to run a TPI. Durabond #7032 is a 2000 degree putty. I'm thinking that if a hole for the O2 bung were drilled into the header and the putty were used to seal it from the inside no welding would be required. Resbond 907 GF is another product I found in a net search. I would expect that these things would work but at what cost?
Al
Here are some progress pics while I figure out my O2 dilemma.
Are those blue pieces vents? How do they work?
Differen T
Member
Thanks for the thread information so a bung could be attached from the inside with some good machine work. The bung would have to be machined to the inside radius of the collector and a thin spacer to the outside radius of the collector. I think I'll get some more information about the high temp adhesives.
Al
Are those blue pieces vents? How do they work?
One is the pick up tube, one is a return and one is a roll over valve/vent. All three are -8 AN fittings. The blue pieces are reducers to -6 except one is just a cap. When I was running a carb, the pick up went to the fuel pump and the vent had a tube connected that directed it under the car.
http://www.justgastanks.com/store/index.php?main_page=product_info&products_id=1425
One is the pick up tube, one is a return and one is a roll over valve/vent. All three are -8 AN fittings. The blue pieces are reducers to -6 except one is just a cap. When I was running a carb, the pick up went to the fuel pump and the vent had a tube connected that directed it under the car.
http://www.justgastanks.com/store/index.php?main_page=product_info&products_id=1425
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