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'83 K10 SB "L1TSBFIBBC" build

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Nice I like how you can make everything apear somewhat stock. Well besides the whole autometer gauge setup and the custom radius arm suspension with coil overs :D I was going to say make sure you keep that high and dry but forgot that you have doors and a full cab. :)


Heath do you plan on running a relay near the transfer pump or using the relay on your micro controller board? If you plan on running a second relay for the pump I would suggest putting in a bypass just incase that micro fails. It probably never will but since you actually drive your rig to the trail, it may be nice to have a fail safe just incase something goes wrong.
 
jekquistk5 said:
Nice I like how you can make everything apear somewhat stock. Well besides the whole autometer gauge setup and the custom radius arm suspension with coil overs :D I was going to say make sure you keep that high and dry but forgot that you have doors and a full cab. :)


Heath do you plan on running a relay near the transfer pump or using the relay on your micro controller board? If you plan on running a second relay for the pump I would suggest putting in a bypass just incase that micro fails. It probably never will but since you actually drive your rig to the trail, it may be nice to have a fail safe just incase something goes wrong.
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Yeah, it's going high up under the dash, if I have water there I have worse problems!

As for the relay, it's a seperate relay under the hood, the PCB switches the relay ground on with some sort of transistor gate, even though you haven't seen it, you would know a lot more about it than I do I am sure considering your background :grin:. And that slide switch on the PCB IS the bypass. Flip that switch, and everything turns off, and it just displays the primary tank on the gauge, reverts back to one tank if you will. If the relay were to fail on I could just unplug the connector too. The momentary push button is a manual over ride to turn on the transfer pump, in case the PCB fails and you run out of gas in the primary tank or something, another backup plan I guess.
 
folkenheath said:
Yeah, it's going high up under the dash, if I have water there I have worse problems!

As for the relay, it's a seperate relay under the hood, the PCB switches the relay ground on with some sort of transistor gate, even though you haven't seen it, you would know a lot more about it than I do I am sure considering your background :grin:. And that slide switch on the PCB IS the bypass. Flip that switch, and everything turns off, and it just displays the primary tank on the gauge, reverts back to one tank if you will. If the relay were to fail on I could just unplug the connector too. The momentary push button is a manual over ride to turn on the transfer pump, in case the PCB fails and you run out of gas in the primary tank or something, another backup plan I guess.
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Okay looks like your buddy is good and has all the bases covered, as long as the PCB still has power the momentary will work, but then again I didn't design it so who knows.
 
jekquistk5 said:
Okay looks like your buddy is good and has all the bases covered, as long as the PCB still has power the momentary will work, but then again I didn't design it so who knows.
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I believe all the momentary does is bridge the relay ground wire. So yes, the PCB has to have the connector plugged in to do that.
 
Wow. All this sweet electrical tech is making my head hurt... lol. The most complex electrical system on my truck are the lights... :pimp:
 
OK, I'm not a diesel guy, I'll bite without googling it, what is a FASS? (It seems to me like you forgot the T. :wink1:) And what are your interesting requirements? Can you get a simple, inexpensive electric pump to transfer the diesel?[/quote]

Ok a FASS unit is a brand of fuel pump for diesels, it also stands for Fuel Air separation system. Their website www.fassride.com

What's nice about them is they can be had with or without the extra filters. So it can feed nice clean fuel to the engine at a constant pressure. Pressures can vary depending on the application/truck requirements. The problem is the unit has a full flow return which helps keep the pump cool but moves too much fuel at too high a pressure for the stock chevy tank selector valve to handle. So it can really only work correctly with a single tank setup. Unless someone knows of better selector valve :dunno:.

Something like this circuit board would allow me to feed the engine from one tank only, just how you setup is going to work just with a different fuel pump setup.
 
KirsL said:
Ok a FASS unit is a brand of fuel pump for diesels, it also stands for Fuel Air separation system. Their website www.fassride.com

What's nice about them is they can be had with or without the extra filters. So it can feed nice clean fuel to the engine at a constant pressure. Pressures can vary depending on the application/truck requirements. The problem is the unit has a full flow return which helps keep the pump cool but moves too much fuel at too high a pressure for the stock chevy tank selector valve to handle. So it can really only work correctly with a single tank setup. Unless someone knows of better selector valve :dunno:.

Something like this circuit board would allow me to feed the engine from one tank only, just how you setup is going to work just with a different fuel pump setup.
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I see, exactly the reason I did what I did. I don't trust the stock selector valve to flow and return enough fuel to flow 600 hp at up to 65 psi. I would trust it on the return side alone (the low pressure side), but not the supply. And if it was high flow low pressure you have the option of using two selector valves, but then the plumbing will get pretty complicated with 4 "Y" fittings split into 8 lines for a short time.

It sounds to me like this circuit would work exactly the same as I am using it. The only difference is you would need a different electric pump to transfer the fuel. And I would have to measure the resistance of the stock fuel level gauge to make sure it is similar to the autometer unit. Obviously they are made for the same sending unit so I would think the supply side would be close too, but who knows.

The only issue is I don't know if my friend planned on selling them, patenting them, etc, and I still have to put some test time on mine yet. But I'll ask him about it.

I got some more wiring done last night. Not quite finished yet though, maybe another hour or so. Hopefully this weekend I'll get some pictures of the installed EFI system. I did power it up last night and fiddle with the EFI programmer a little. But no exhaust or O2 sensor (it's not even plugged in), or powered fuel pump, so no starting. I could hear the injectors clicking when I keyed it on, that was different than I am used to hearing on key-on! That EFI programmer is so simple to use it' not even funny. I think you could use the programmer without even reading the directions. The only problem was it was tripping an error code for a O2 sensor fault...:doah:I guess I'll have to install that. :D
 
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Yep same idea just a different fuel. Should work pretty good for you.

The setup that is currently on my truck works, I just like the idea of having a better pump with filter setup. Plus I have a FASS on my dodge so it would allow me to buy spare filters that would fit either truck.

On a side note our trucks are kinda built along the same lines, highly modded but still look some what stock :D. Yours is farther along then mine too, mine about 6 colors and needs some body work done it,
 
KirsL said:
Yep same idea just a different fuel. Should work pretty good for you.

The setup that is currently on my truck works, I just like the idea of having a better pump with filter setup. Plus I have a FASS on my dodge so it would allow me to buy spare filters that would fit either truck.

On a side note our trucks are kinda built along the same lines, highly modded but still look some what stock :D. Yours is farther along then mine too, mine about 6 colors and needs some body work done it,
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Yep, same thing, you would just need a small electric diesel pump. I tried it out this weekend by the way, it works pretty well, everythnig does what it was supposed to, I just need to make a little enclosure for it. I talked to my friend, and it is possible we could sell some of them down the road, but not sure yet. If so it will be several months while we test this one out and make any upgrades.
 
IT'S ALIVE! I started the truck this weekend with the EFI!

I got the wiring ALL done, complete, everything is routed, fastened, protected. All I need to do is find a big grommet. If I can find another one like the passenger side factory one on the firewall that used to be for the electronic distributor control (now the MSD wires go through it), that will work perfect.

I also got the rear suspension apart and back together. I had a busted center pin on the DS leaf spring. I also had a busted Teflon pad on the PS leaf spring. Got them both fixed. I also drilled some new holes in the frame/shackle hanger, and moved the rear shackle hanger forward just under 2" for better shackle angle. And then I installed 1" longer HD shackles from DIY4X since my factory units had seen better days. While I had it apart I put new poly bushings in there. With these changes my droop (without the bed on, will probably add 1/2 - 1" to both numbers with that), went from 1.5" to 3.5". So I gained 2" of straight travel by moving the shackle, maybe more with articulation?

I also fabbed the new 3" exhaust system (except tailpipes), and after dark last night, fired that puppy up! EFI is a rockin, and those Flowmasters sound tuff! Anyway, it was after dark, and I have no bed or taillights, so I didn't take it for a test drive. Tonight I hope to take it for a small test drive in the subdivision, it has no rear shocks, no bed, and no taillights, so I won't go on the public roads, I just want to see how close the EFI is in the beginning for easy driving. So far so good.

Sorry, I don't have any pictures yet, I'll try and snap a few tonight hopefully.
 
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jekquistk5 said:
Can't wait to hear the beast run.
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I like the flows, and with the big block series, it has a nice rumble at idle, but doesn't get "too" loud at 2500 RPM in neutral, I hope I'm still good at silver lake, I hope, if not I could of saved some dough and bought 40 series!
 
Does anyone run air bumps with leaf springs? Since I saved some time and money holding off on the rear 4 link for now, I was thinking of putting some air bumps in, I can always remount them if I link it later.
 
Next time my truck and your dB meter are in the same place, I'll give it a go, but if it's too high I don't want to know. :D
 
me either.....I'd be interested in finding that out. I think we have some test units at work I may be able to tryout.
 
Test drive went awesome. Truck drives good, sounds sweet, all kinds of data to look at, you can change A/F ratio while it's running if you want, and then check the vacuum to see what it did all with the little handheld unit. So easy to use. Runs good, I can tell it's still learning, but it's learning QUICK! I drove it around the neighborhood for about 20 minutes. Everything went great. And I think it probably has more to do with the fact that the bed is still off than the EFI or 3" exhaust, but I now have a serious traction issue. Dry pavement, 30 MPH, 2nd gear, roll it to over half throttle application, 36" tires just scream for help!

Obviously it's still learning, but it's driveable pretty much immediately. The first time I put it in gear and actually started to move the truck, it stumbled a little bit, but it never did that again. I imagine the first few times I really let the RPM get up or tromp on it all the way (I have yet to floor it, no shocks, and no traction with the bed off) it may not be quite perfect, but I bet it will run fine, and even better after that. So far I am very happy with the system.

Also, with the rear axle straight(center pin fixed and new u-bolts), when you spin the tires, the truck still goes straight, who'd a thunk it?

I want the shocks and bed on so I can really see how it runs...more time...

I forgot to take some pictures of the new shackle angle. It's sitting right at 20 deg with the bed off, it will probably increase a couple degrees when I put the bed on.

EFI+DS+S.JPG


EFI+PS+S.JPG


EFI+TB+S.JPG
 
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Well then, safe to say you have the dream truck of 90% of people on here! I know that is my dream truck! Great work!
 
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