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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Quicksilver440]
#1376605
01/29/13 01:56 PM
01/29/13 01:56 PM
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Joined: Apr 2005
Posts: 1,509
TN
SCATPACK 1
pro stock
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pro stock
Joined: Apr 2005
Posts: 1,509
TN
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How does the reluctor and or pick up read? Is it magnetic or infrared or what?
If it is magnetic, won't the balancer interfere with it?
I don't know the answer and I am not scrutinizing your work, as it looks great! I am just trying to learn from you. thansk for sharing
Old Geezer Racing
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: JohnRR]
#1376607
01/29/13 04:12 PM
01/29/13 04:12 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
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Central Valley, CA.
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Quote:
Quote:
Here is my attempt at a hidden reluctor, it is a 24X reluctor off a BB Chevy that fits on the crank snout. The problem is that the BB Chevy crank snouts are a larger diameter than the BB mopar so there is more play than I am comfortable with. If that reluctor is not centered on the crank snout, then the clearance between the reluctor teeth and the Crank Sensor would vary during rotation. Anybody know a easy way to make the hole smaller and maintain a key way? It is made of powdered metal, if that makes a difference.... 
Then the problem would be how to add a crank sensor to the bottom of the timing cover, it doesn't really land in a good location on the cover during my mockups....also, I would want some level of adjustment with the sensor and the keyway on a BB chevy and a BB mopar is not the same if I remember correctly. So the reluctor would need another keyway cut (but that's no big deal). Also, the balancer snout would have to be cut to keep pulley alignment, but again, thats no big deal.
How about removing the part that connects to the crank snout and attaching the reluctor to an oil slinger ?
Great write up , I'd definitely want to do something like this considering the cost.
I don't see oxy sensors listed on the 700 budget side ?
OOPS! I forgot the oxygen sensors in the other column....ok, what If I told you you could do it for $800... 
I'll have to look at the oil slinger....honestly, that BB Chevy reluctor probably fits as tight as an oil slinger does. I could just cut a new keyway.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: 1_WILD_RT]
#1376609
01/29/13 04:15 PM
01/29/13 04:15 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:
Quote:
Check out the Ford cam sensor from a '90s OHC motor. It's simple.
R.
Exactly what I was gonna mention, you need to plug the distributor hole anyway, the Ford design does that pretty cleanly...
I'll check it out.... 
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: SCATPACK 1]
#1376610
01/29/13 04:18 PM
01/29/13 04:18 PM
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Joined: Dec 2009
Posts: 21,158
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 21,158
in a cattle trailer down by th...
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Very interesting thread, thank you for sharing. I may just consider doing the same on my small block.
"Come get your wife"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Front and rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Guitar Jones]
#1376611
01/29/13 04:25 PM
01/29/13 04:25 PM
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Joined: May 2005
Posts: 180
merrill, wisconsin
voigtspeed
member
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member
Joined: May 2005
Posts: 180
merrill, wisconsin
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Great post!! Heres a thought for the bbc reluctor you have to trim the ballancer anyway put a step in it to fit the reluctor. Thanks again for giving me more ideas to build even more projects around.... The sickness continues... 
ACCELERATION SPECIALIST
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: SCATPACK 1]
#1376612
01/29/13 04:45 PM
01/29/13 04:45 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:
How does the reluctor and or pick up read? Is it magnetic or infrared or what?
If it is magnetic, won't the balancer interfere with it?
I don't know the answer and I am not scrutinizing your work, as it looks great! I am just trying to learn from you. thansk for sharing
The crank signal from an LS1 (24x reluctor wheel) is a typical hall effect square wave output. The reluctor uses 2 different width notches (12* and 3*) that are 15* apart.
Reluctors for both the cam and crank in an LS series engine uses the absence or presence of ferrous material (iron or steel) to modulate a magnetic field that is sensed and sent to the PCM in the form of voltage/current changes.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Twostick]
#1376613
01/29/13 04:48 PM
01/29/13 04:48 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
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Quote:
IMHO, I would think it would be less than ideal. Placing all the injectors accurately so they shoot at the back of the intake valve is tricky because of the shape of the runners.
A DP wet flow manifold is a compromise to assure good air velocity at low engine speeds so the carb gets good signal and the engine sees decent fuel distribution.
A port injected engine doesn't have this problem to deal with so a single plane doesn't give up anything on the bottom as all it has to do is deliver air. Runner shape makes ideal injector location easier too.
I would agree with this.....but I really am not an expert on that subject.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: voigtspeed]
#1376614
01/29/13 04:49 PM
01/29/13 04:49 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
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Quote:
Great post!!
Heres a thought for the bbc reluctor you have to trim the ballancer anyway put a step in it to fit the reluctor.
Thanks again for giving me more ideas to build even more projects around....
The sickness continues...
Hey...thats a cool idea!!! Let me check that out.... 
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Quicksilver440]
#1376615
01/29/13 05:04 PM
01/29/13 05:04 PM
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Joined: Jan 2003
Posts: 75,313
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,313
A gulag near you.
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Quote:
I'll have to look at the oil slinger....honestly, that BB Chevy reluctor probably fits as tight as an oil slinger does. I could just cut a new keyway.
How about attaching the reluctor to the lower crank gear ?
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Twostick]
#1376616
01/29/13 05:07 PM
01/29/13 05:07 PM
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Joined: Jan 2003
Posts: 75,313
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,313
A gulag near you.
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Quote:
IMHO, I would think it would be less than ideal. Placing all the injectors accurately so they shoot at the back of the intake valve is tricky because of the shape of the runners.
A DP wet flow manifold is a compromise to assure good air velocity at low engine speeds so the carb gets good signal and the engine sees decent fuel distribution.
A port injected engine doesn't have this problem to deal with so a single plane doesn't give up anything on the bottom as all it has to do is deliver air. Runner shape makes ideal injector location easier too.
Thanks, I've only ever thought about buying something like the new FAST that looks like a carb , this setup has me intrigued. I'd have to do more homework to see what's involved with running it with E85.
Any links to info for a novice to do their homework ? Injector sizing ?
Sorry for straying
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: JohnRR]
#1376617
01/29/13 05:13 PM
01/29/13 05:13 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:
Quote:
I'll have to look at the oil slinger....honestly, that BB Chevy reluctor probably fits as tight as an oil slinger does. I could just cut a new keyway.
How about attaching the reluctor to the lower crank gear ?
Thats possible too...I'll try and test fit that again on my spare block and see what I can come up with.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Twostick]
#1376622
01/29/13 06:02 PM
01/29/13 06:02 PM
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Joined: Nov 2006
Posts: 2,265
IL
furious70
top fuel
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top fuel
Joined: Nov 2006
Posts: 2,265
IL
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FWIW I'm using an rpm perf for my turbo 383 and the distribution is beautiful according to my plugs. I use a sheet metal elbow and 5.0 TB. I have a friend who has also had the best luck with distribution and mpg with a DP on his turbo 340. My take away is use whatever intake you would use based on the goals for the car with a carb and not sweat the efi. Other people may have had a different experience.
70 Sport Fury
68 Charger
69 Coronet
72 RR
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Twostick]
#1376623
01/29/13 06:10 PM
01/29/13 06:10 PM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
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OP
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Also, remember when doing injector size calculation that LS motors run fuel pressure at 58 psi.
Flexfuel injectors are actually larger...flow more lbs (like 34lbs vs. 27 lbs +/-)....than the regular fuel injectors to allow for the E-85. Unless you WAY oversize an injector, it won't affect idle, etc. much, if at all if tuned correctly.
Last edited by Quicksilver440; 01/29/13 06:11 PM.
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