What is the latest and greatest EFI

[1969]

Interesting question for all the brain power in this thread. On the topic, but may ruffle the true blue fans. I've seen post elsewhere about folks pulling LS engines to run carbureted and not mess with the EFI and computer. I've got the reverse question in that I've got available 455 Pontiac, basically for free and wondering if you pulled parts from a Pick-n-Pull left from pulled LS engines would it be possible to convert for that engine. Crazy idea I know but I believe I've seen EFI manifolds for the 455 and as evidenced in this post there are ways around the cam and crank sensor to get your timing signals. I know it's pretty in depth as I've done some study on the HP tuner software and know it's a steep learning curve. I guess my question would be whether it's even possible. I believe that firing order on the 455 is different from the latter engines but I'm assuming you could do rewiring to handle that and if that was the case is there something else I'm missing other than this sheer backwardness of doing this?

Just spend the $750 at most wrecking yards and buy a complete 5.3 and be done with it. Way less headache and problems.

 

[Yeller]

Interesting question for all the brain power in this thread. On the topic, but may ruffle the true blue fans. I've seen post elsewhere about folks pulling LS engines to run carbureted and not mess with the EFI and computer. I've got the reverse question in that I've got available a 455 Pontiac, basically for free and wondering if you pulled parts from a Pick-n-Pull left over from pulled LS engines, would it be possible to convert for that engine. Crazy idea I know but I believe I've seen EFI manifolds for the 455 and as evidenced in this post there are ways around the cam and crank sensor to get your timing signals. I know it's pretty in depth as I've done some study on the HP tuner software and know it's a steep learning curve. I guess my question would be whether it's even possible. I believe that firing order on the 455 is different from the latter engines but I'm assuming you could do rewiring to handle that and if that was the case is there something else I'm missing other than this sheer backwardness of doing this?

Is it possible, in a nutshell yes. Is it worth it beyond the novelty? Up to the one figuring it out.

 

[duffymahoney]

I am knee deep into designing my own Datsun intake, which put the injector perfectly in the middle of the runner for ITB. I will have a china cnc shop cut it. It's functional, now to make it pretty.

 

[ba123]

I am knee deep into designing my own Datsun intake, which put the injector perfectly in the middle of the runner for ITB. I will have a china cnc shop cut it. It's functional, now to make it pretty.

I used www.xometry.com for my cam sync cnc and they have the option to have it made in China for cost savings and I did that as it was so much less.

Turned out perfectly.

 

[bmc69]

Fuel timing is huge, knowing the pressure and per cylinder o2 you can literally get every ounce of torque and HP and often with less fuel. Banks proved that in the diesel world years ago.

That's essentially what the FICHT 2-stroke technology (OMC outboard engines...now deceased) relies on, with the rather glaring and problematic exception that the tuning of the individual cylinders is done at the factory and not done "continuously on the fly" with onboard sensors. Made them a real PITA to work on later.

The very high-strung marine turbo diesels that we use (V16..V20) have been using individual cylinder control for many years now. Of course we're talking about engines that never cost less than a half million bucks...

 

[duffymahoney]

I used www.xometry.com for my cam sync cnc and they have the option to have it made in China for cost savings and I did that as it was so much less.

Turned out perfectly.

If you ever need parts made in china again let me know, Xometry is a rip off, probably 400x more expensive then direct china cnc. I have an awesome rep

 

[ba123]

If you ever need parts made in china again let me know, Xometry is a rip off, probably 400x more expensive then direct china cnc. I have an awesome rep

crap...ok, next time!

 

[lars]

I used www.xometry.com for my cam sync cnc and they have the option to have it made in China for cost savings and I did that as it was so much less.

Turned out perfectly.

What CAD software are you using? 9 years in I'm still going through withdrawals due to lack of access to full blown SolidWorks. Teetering on the brink of (gasp) paying for a license.

 

[73azbronco]

Interesting question for all the brain power in this thread. On the topic, but may ruffle the true blue fans. I've seen post elsewhere about folks pulling LS engines to run carbureted and not mess with the EFI and computer. I've got the reverse question in that I've got available a 455 Pontiac, basically for free and wondering if you pulled parts from a Pick-n-Pull left over from pulled LS engines, would it be possible to convert for that engine. Crazy idea I know but I believe I've seen EFI manifolds for the 455 and as evidenced in this post there are ways around the cam and crank sensor to get your timing signals. I know it's pretty in depth as I've done some study on the HP tuner software and know it's a steep learning curve. I guess my question would be whether it's even possible. I believe that firing order on the 455 is different from the latter engines but I'm assuming you could do rewiring to handle that and if that was the case is there something else I'm missing other than this sheer backwardness of doing this?

Anything is possible, with time and lots of money. The question, why would you go off the ranch to an LS like when there are so many ford options. I say that using edelbrock heads, Qjet, NV4500.

 

[duffymahoney]

I use fusion, my buddies that help me use solidworks.

Check this out! Very cool and compact for a 302/351

 

[ba123]

What CAD software are you using? 9 years in I'm still going through withdrawals due to lack of access to full blown SolidWorks. Teetering on the brink of (gasp) paying for a license.

I’ve been using solid edge and happy with it.

 

[73azbronco]

Distributors in the back, what are they thinking!

 

[duffymahoney]

I reached out to EFI hardware, they have a few big bosch throttle bodies that are cheaper. Could be a great way to make a home brew and better DBW/ Proflow setup.

 

[Yeller]

Distributors in the back, what are they thinking!

What distributor?

 

[sanndmann3]

Reading thru this thread and wishing I had sent my spare computer to EFI guy a couple years ago. Wanted a back up for my 351W Lightning powered EDIS set up...

 

[duffymahoney]

Now this one is even better, looks to be shorter. I wonder if I could hide a maf on top, like this one. Then the ecu could self tune. This might be my next setup.

 

[EFI Guy]

It has been done before, the issue with that is that the MAF readings are pretty erratic without a decent amount of tube on each side of it. It works, just not very accurate, especially at lower airflows. The Wangotango build on here replaced the GM MAF with a Ford slot MAF and about a 4" bellmouth and it got much better. In a perfect world, you would have inches of I.D. X2 of straight pipe in front and behind the MAF, but Ford rarely went that far themselves.

Don, gimme a ring.

 

[pcf_mark]

I use fusion, my buddies that help me use solidworks.

Check this out! Very cool and compact for a 302/351

The beauty of this design is it include the drive-by-wire throttle. Fewer connections, holes in firewall, smooth look, cruise control, flow enough air for crazy power but no tip in problems, programmable throttle opening curve.

 

[duffymahoney]

The beauty of this design is it include the drive-by-wire throttle. Fewer connections, holes in firewall, smooth look, cruise control, flow enough air for crazy power but no tip in problems, programmable throttle opening curve.

Cruise control blah blah blah. It's what I will pick.

 

[toddz69]

It has been done before, the issue with that is that the MAF readings are pretty erratic without a decent amount of tube on each side of it. It works, just not very accurate, especially at lower airflows. The Wangotango build on here replaced the GM MAF with a Ford slot MAF and about a 4" bellmouth and it got much better. In a perfect world, you would have inches of I.D. X2 of straight pipe in front and behind the MAF, but Ford rarely went that far themselves.

Don, gimme a ring.

Isn't that what kinda doomed the Mass-Flo EFI systems from back in the day?

Todd Z.