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bowtie6872
Master of Boredom
Joined: 25 Jun 2007
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Location: heaven can wait
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 Posted: Thu Oct 22, 2009 1:28 pm Post subject: |
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| dieselgeek wrote: |
haa
seriously?? and got your degree in mechanical engineering?? |
NOPE WORKING ON A DEGREE.. |
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bowtie6872
Master of Boredom
Joined: 25 Jun 2007
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| Posted: Thu Oct 22, 2009 2:09 pm Post subject: |
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and not m.e. degree
nuke science |
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1fast72nova
Rat Rod
Joined: 21 May 2007
Posts: 871
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| Posted: Thu Oct 22, 2009 2:47 pm Post subject: |
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| dieselgeek wrote: | | 1fast72nova wrote: | | dieselgeek wrote: | | 1fast72nova wrote: | that's what I'm thinking.. and the cone narrows b/c air velocity is increased...
still doesn't answer my question IF the harness diagram on page 1 is correct ;p |
Nope, it's not correct. You need anymore answers? |
lol, yea.. if you really know what you're talking about show me.. prove it.. now's a GOOD time to do it...
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After you're done rolling your eyes, go out and pick up a copy of the latest Popular Hotrodding. There's an article featuring the engine computer that I designed. Is that enough "proof" that I understand electronic controls? or do you need more? |
I'm not trying to be a dick here but
are you here to help or here to sell your shit?
you either know how to wire up the TBI brain and what wire to hook into the tach output of an HEI or you don't....
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dieselgeek
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Joined: 10 Jul 2009
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| Posted: Thu Oct 22, 2009 2:54 pm Post subject: |
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| 1fast72nova wrote: | | dieselgeek wrote: | | 1fast72nova wrote: | | dieselgeek wrote: | | 1fast72nova wrote: | that's what I'm thinking.. and the cone narrows b/c air velocity is increased...
still doesn't answer my question IF the harness diagram on page 1 is correct ;p |
Nope, it's not correct. You need anymore answers? |
lol, yea.. if you really know what you're talking about show me.. prove it.. now's a GOOD time to do it...
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After you're done rolling your eyes, go out and pick up a copy of the latest Popular Hotrodding. There's an article featuring the engine computer that I designed. Is that enough "proof" that I understand electronic controls? or do you need more? |
I'm not trying to be a dick here but
are you here to help or here to sell your shit?
you either know how to wire up the TBI brain and what wire to hook into the tach output of an HEI or you don't.... |
What's with the "makes no sense" responses every time I answer your questions? are you living in the twilight zone? Every time I answer, you come back with some random crap that doesn't make any sense.
Go back and read because, by now, you're asking the same thing over and over and over again.
Yes, I know how to"wire up the TBI brain" - and I explained SOME of why it's not going to work, but every time you read something you don't wanna hear, you skip over it. Which is why it's time for you to stop posting, go out and wire this up, then rig up a camera to record the results. Since you're not going to listen to people who are spending their time giving you free answers, you need to go show us the results.
Last free piece of advice: the TBI computer is going to fry if you try powering it off the same leg that the solenoids are powered from. Leme guess, you're going to ignore that too?
You might learn that,when you ask people for their opinion, and they give it to you, and then you just skip over the details - that no one's going to help you much after that.
So go out, wire it up, hit the button, and record what happens! |
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1fast72nova
Rat Rod
Joined: 21 May 2007
Posts: 871
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| Posted: Thu Oct 22, 2009 2:59 pm Post subject: |
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it's you who is having the hard time reading... I wired it up, hooked the injectors to a light and got no fire.. at which point I asked if it was wired correctly and you said "no" so then I asked what was wrong?
did I miss a ground wire, a hot wire or what?
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dieselgeek
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Joined: 10 Jul 2009
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| Posted: Thu Oct 22, 2009 4:01 pm Post subject: |
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| 1fast72nova wrote: | it's you who is having the hard time reading... I wired it up, hooked the injectors to a light and got no fire.. at which point I asked if it was wired correctly and you said "no" so then I asked what was wrong?
did I miss a ground wire, a hot wire or what? |
How are you testing "got no fire" ? when you hook the injectors to a light, you mean a noid light? Did you use "injectors" or "solenoids" ? The solenoids, I can understand no light, but if you make up a simple test light, you probably won't see that either because of how short the pulses are going to be.
Do you have an oscilloscope? another way to test if the computer is working, is to look at the fuel pump output - use a simple 12v test light, one leg of the light has to be on 12v and the other to the Fuel Pump output on the ECU. It'll ground (shine light) for 2 seconds when you first power it up, then as soon as the ECU sees any RPM, it'll also ground (see light). |
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dieselgeek
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| Posted: Tue Oct 27, 2009 3:23 pm Post subject: |
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| So I am dying to hear how this panned out. How did it run on the nitrous? has it been tested yet? |
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1fast72nova
Rat Rod
Joined: 21 May 2007
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| Posted: Tue Nov 03, 2009 8:34 am Post subject: |
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for one I told you it didn't fire on the bench, #2 pulled the JET chip out and sold it..
I had to assume that it was my harness I made but it could have been the dizzy, the brain also..?
and... remember all the stuff I was saying about FI....
well here are the "masters" backing up exactly what I said...
I'd sure like to see you get in there, read the thread and chat with these guys, It'd be a great read for me...
http://speedtalk.com/forum/viewtopic.php?t=18746&postdays=0&postorder=asc&start=15
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dieselgeek
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Joined: 10 Jul 2009
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| Posted: Tue Nov 03, 2009 9:10 am Post subject: |
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| 1fast72nova wrote: | for one I told you it didn't fire on the bench, #2 pulled the JET chip out and sold it..
I had to assume that it was my harness I made but it could have been the dizzy, the brain also..?
and... remember all the stuff I was saying about FI....
well here are the "masters" backing up exactly what I said...
I'd sure like to see you get in there, read the thread and chat with these guys, It'd be a great read for me...
http://speedtalk.com/forum/viewtopic.php?t=18746&postdays=0&postorder=asc&start=15 |
It's a small world. One of those guys in that thread is flying me out to tune his Engine Master's engine with a new EFI package on it, as he believes he would have won the event with EFI (he came in third). Conference call is this afternoon 
Another one, has a track mustang that I helped tune.
A third guy in there, had me come to Minneapolis to tune his first EFI motor and get him up to speed on FAST; a fourth guy in that same thread, kinda annoys me because he's pretending like he understands EFI but the first and only time he tried using it, he couldn't get the engine to run and gave up. He's a badass engine builder but doesn't know where his skills start/stop.
You can post up and ask them if thy know me, if it makes you feel better. |
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dieselgeek
banned
Joined: 10 Jul 2009
Posts: 970
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| Posted: Tue Nov 03, 2009 9:29 am Post subject: |
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| no matter. I decided to join in the thread anyways. |
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1fast72nova
Rat Rod
Joined: 21 May 2007
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dieselgeek
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Joined: 10 Jul 2009
Posts: 970
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| Posted: Tue Nov 03, 2009 12:26 pm Post subject: |
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| 1fast72nova wrote: | and if you connect this thread with this thread:
http://speedtalk.com/forum/viewtopic.php?t=18683&start=0
you'll see what I REALLY had in mind 
-edit- so now that you know what I REALLY wanted to do.... is the harness I posted in the first pic correct? ie will it.. or SHOULD it fire the injectors? |
it SHOULD fire the injectors provided you have this installed on an already-running engine.
I've read your posts and I just do not get it at all. If you're looking for a cheap way to add power by injecting "something" - the answer is Nitrous Oxide and extra fuel.
Also, you said if an engine is running at 12.5-13.5 that there "ought tobe a little extra oxygen available" and the answer is "no" there's not any extra oxygen available. If the engine were running at 14.8:1 or 16:1, THEN there'd be extra oxygen available.
I think the nitrous solenoid idea is better than the NItromethane idea, because those TBI injectors can inject enough nitro to support about 2hp, if even that. Nitro has a low BTU content, which is why you need so much to make power...
so anyways back to the Nitrous idea - if you're serious about making this work, my advice would be
(1) simulate the engine on a benchtop, and monitor the activity of the injectors. This is pretty cheap to do, using a MS-Stimulator ($60) and a test LED ($1).
(2) I would skip the "GM TBI computer" altogether because you need an oscilloscope to figure out what duty cycles will "happen" based on certain inputs, you cannot just assume that a resistor on a temp sensor input will have a linear or desired effect on duty cycle. I'd go with something like a Megasquirt because it's cheaper and controllable. I think I've sad this nine times and it doesn't seem to be sinking in.
(3) I'm not sure how you'd work around the other problems of nitrous solenoids that are designed for a fixed frequency (and varying duty cycle) with either the GM computer OR the megasquirt, and neither have injector driver circuits that can handle that kind of current. I'd be a whole lot easier to get a simple PWM nitrous controller
But I am interested in seeing your attempt! and will help however I can. |
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1fast72nova
Rat Rod
Joined: 21 May 2007
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| Posted: Tue Nov 03, 2009 1:17 pm Post subject: |
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and I keep telling you that I'm not going to use any TBI injectors or the like...
and also that I'm going to use a GM cpu....
so if my harness works the next step is to go back to the salvage yard, grab another cpu and dizzy....
BUT I am hoping you're going to tell me how to fire the cpu with a big cap HEI (this is VERY important) and I know it can be done being I called a place and they said they offer the entire harness for $450.. I asked about just making a jumper from the hei to the standard harness.. they said no but called me back and said they can do that IF I also get them to program a chip, but that it would work with a standard chip just fine other than that the SES light would come on... lol, so they were trying to force me into having them burn a chip when all I needed was the know how or a $15 jumper wire....
so that is where I am really, getting it to fire from a standard big cap HEI...
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dieselgeek
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| Posted: Tue Nov 03, 2009 1:23 pm Post subject: |
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| 1fast72nova wrote: | and I keep telling you that I'm not going to use any TBI injectors or the like...
and also that I'm going to use a GM cpu....
so if my harness works the next step is to go back to the salvage yard, grab another cpu and dizzy....
BUT I am hoping you're going to tell me how to fire the cpu with a big cap HEI (this is VERY important) and I know it can be done being I called a place and they said they offer the entire harness for $450.. I asked about just making a jumper from the hei to the standard harness.. they said no but called me back and said they can do that IF I also get them to program a chip, but that it would work with a standard chip just fine other than that the SES light would come on... lol, so they were trying to force me into having them burn a chip when all I needed was the know how or a $15 jumper wire....
so that is where I am really, getting it to fire from a standard big cap HEI... |
I disagree on your "next step" - instead of repeating "I'M NOT USING TBI INJECTORS" then you need to explain how you're going to fire anything other than an injector, with an injector driver in a GM ECU.
Figure that out first, before you waste your time or money. |
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dieselgeek
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| Posted: Tue Nov 03, 2009 1:25 pm Post subject: |
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| do you have an MSD box on your target engine already? |
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