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01-05-2008, 04:01 AM | #1 |
still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Are you running an LT1
how many of you guys that have installed an LT1 have eliminated the mass Air Flowsensor. or how many have left it connected to your motor is there a advantage either way?
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
01-05-2008, 04:11 AM | #2 |
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Location: Plymouth, MA
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Re: Are you running an LT1
I am running an LT-1 and had the MAF removed. It runs fine with no problems. I read that it only helps when the engine is cold, but you may want to do some research if you are looking to get good gas mileage etc.
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01-05-2008, 04:29 AM | #3 | ||
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Location: Cheney, KS
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Re: Are you running an LT1
Quote:
Speed density = Uses MAP(Manifold Absolute Pressure) sensure to read the "load" on the engine by the amount of vacuum in the engine, lower vacuum means your on the gas, which will tell the PCM to hold the injectors open longer to let more fuel in, advance the timing, etc. MAF = Mass Airflow Sensor mesures the amount incoming air to tell the PCM how much air is present, which then it will increase/decrease fuel depensing on how dense the air is. This setup is more advanced, and requires other sensors/signals to be sent to the PCM for it to work right. Limp home mode = Program built into the PCM, which incase of failure of a vital sensor, the computer will revert to. There will be no incrase/decrease of fuel or spark advance, there will be zero power and will run so lean that it can cause MAJOR damage to an engine. This program is mainly designed so that you can get your car safely off the road, or to a shop. Open loop = Another PCM program, when you first start your vehicle. The PCM is usually looking at only a few sensors. And will be in a fixed fuel/spark advance to privide better cold driving. Hope that helps....DO NOT RUN WITH OUT IT!
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01-05-2008, 04:42 AM | #4 |
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Join Date: Nov 2002
Location: Lebanon, Tennessee
Posts: 1,372
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Re: Are you running an LT1
With Slammed70. Exactly as he said.
I have a '94 Z28 w/ LT1. Really sweet running car. It is computer controlled, i.e., with electronic engine management system. ALL of the various inputs to the computer determine just how well it runs - not the least of which is the MAF sensor. It needs the MAF.
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01-05-2008, 05:17 AM | #5 |
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Join Date: Jan 2007
Location: Owensboro KENTUCKY
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Re: Are you running an LT1
Im woundering can someone tell me is this a maf plug or what bought LT1 engine with this being the only plug hanging up front I thought it was ecm
Engine is 94 caprice and i could use a wireing scamitic
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01-05-2008, 05:31 AM | #6 |
still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: Are you running an LT1
you can go to www.shbox.com thats where I go for schematics and also I bought a manual for the car the motor came out of
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
01-05-2008, 05:32 AM | #7 |
still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: Are you running an LT1
my motor the LT1 is a 94 so from what I read dont eleiminate the MAf at all?
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
01-05-2008, 05:33 AM | #8 |
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Join Date: Jul 2005
Location: Winters Ca. 95694
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Re: Are you running an LT1
I have a n LT1 out of a 92 vett with all factory sensors hooked up and working. Mine is not a MAF engine but if it were I would run everything as well. The people that think thay can delete everything and still have a great or even better running engine need to go work for GM. GM spends multi millions on their engine research and if you are better then them I am sure they would rather pay you half that and still save money
It is their for a reason, don't mess with it! Kevin LFD Inc. Last edited by Rokcrln; 01-05-2008 at 05:34 AM. |
01-05-2008, 08:21 AM | #9 |
still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: Are you running an LT1
thanks Guys, I feel since you have these running and of course the obviuos
what Rokcrin points out about GM's experience that well if they studied and put it on the market, best not to try to short change the project. thanks again everyone
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
01-05-2008, 02:36 PM | #10 | ||
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Location: Cheney, KS
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Re: Are you running an LT1
Quote:
Thats not an LT1.....
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Quote:
Last edited by Slammed70; 01-05-2008 at 02:39 PM. |
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01-08-2008, 06:46 AM | #11 | |
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Join Date: Jan 2008
Location: NH
Posts: 6
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Re: Are you running an LT1
Quote:
You can find wiring diagrams at http://ss.lencolab.com/. Harness photo at http://home.cogeco.ca/~chadoliver1/LT1HarnessLow.jpg. The PCM connectors are the large blue, black,read and clear connectors in the lower left of the photo. Last edited by boojum; 01-08-2008 at 06:59 AM. |
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01-05-2008, 10:09 AM | #12 |
Questionable
Join Date: Mar 2005
Location: Atlanta
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Re: Are you running an LT1
nice naked chick in your back window, Rockrln
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01-05-2008, 11:23 AM | #13 |
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Re: Are you running an LT1
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02-06-2008, 07:09 AM | #14 |
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Re: Are you running an LT1
Fyi - Some of the Caprice's have a 4.3 (W) V8 "baby LT1" Externally it looks just like the 5.7's but the cylinders/pistons are smaller.
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02-06-2008, 07:53 AM | #15 |
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Location: Virginia Beach, Va, USA
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Re: Are you running an LT1
Schematics. I believe I got my info from hotrodlane.com for my LT-1. And yes I hooked up all the sensors.
Kerry
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02-06-2008, 09:23 AM | #16 |
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Re: Are you running an LT1
Smart man.
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Jeff '67 short Fleet; my ongoing project. '66 long Fleet; my original "baby." Live life or bust trying. |
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