LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

95 mass air motor to 93 speed density

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Old Jun 11, 2003 | 03:49 PM
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WhoomWhaatWhaah's Avatar
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95 mass air motor to 93 speed density

I have a 93 Z and the motor is a lil tired, so I got this 95 Z.. My question is What do I have to do to convert the mass air motor to speed density or do I have to keep the mass air setup
Old Jun 11, 2003 | 03:50 PM
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Are you planning to use the 93 computer?
Old Jun 11, 2003 | 03:52 PM
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How much do you charge for that Madwolf? I think I might need a new MAF sensor and if you charge around the same as what a used MAF sensor would cost, I'll just eliminate it. Let me know. Thanks.
Old Jun 11, 2003 | 03:54 PM
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Originally posted by Rich_z28
How much do you charge for that Madwolf? I think I might need a new MAF sensor and if you charge around the same as what a used MAF sensor would cost, I'll just eliminate it. Let me know. Thanks.
I'd recommend keeping the MAF sensor on your car, unless you really want to remove it. If you do and that's all you need done, it will be $45 or whatever I charge for the saver package programming.
Old Jun 11, 2003 | 03:54 PM
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You don't have to do anything, just hook up all the available connectors and your good to go, there is no sensor hook up for the MAF, thats the only difference. The PCM won't know the difference. Or.....if you can get your hands on the PCM and wiring harness you could go that route and it would utilize the MAF. But either way it should work fine.
Old Jun 11, 2003 | 03:56 PM
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If he's reusing the 93 computer, yes, (although the injectors on the 95 engine are bigger and the car will run slightly rich) nothing needs to be done, but if he's using the 95 computer, then it needs to be programmed for speed density...
Old Jun 11, 2003 | 03:59 PM
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why would it have to be programmed, why can't he just add a MAF in the line, if he has a 95 motor with a 95 computer then he most likely got a MAF, just hook it up that way. If he uses the 93 computer then don't hook up the MAF. That would be the most cost effective way to do it. As far as the injectors, yes you would need programming to compensate for the bigger injectors, but on a day to day driver he shouldn't even notice.

Edit: I'm not trying to kill business for you Madwolf. I am sorry, but I'm a budget modder, so I look at things in the most cost effective way. No hard feelings.....

Last edited by scoobysnax83; Jun 11, 2003 at 04:01 PM.
Old Jun 11, 2003 | 04:08 PM
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The original question was "What do I have to do to convert the mass air motor to speed density". So that is why I suggested that for SPEED DENSITY, it will have to be reprogrammed. If he adds the MAF, then there will be no problems, but he asked about speed density.
Old Jun 11, 2003 | 04:09 PM
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I have both car sitting in my drive way.
Old Jun 11, 2003 | 04:12 PM
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whats wrong with the 95?
Old Jun 11, 2003 | 04:13 PM
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Here's how I see it. The 95 runs better for normal driving, but the 93 out guns it at wot, but with the 95 I can monitor the behavior of the car as I drive(big plus), but the 93 dosen't throw codes. Somebody help I don't have any money to spend. looking forward to doing the swap within the next weeks or two.
Old Jun 11, 2003 | 04:15 PM
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Why aren't you able to monitor the 93? I'm guessing you are swapping to the 95 PCM then.... You'll have to swap harnesses also.
Old Jun 11, 2003 | 04:18 PM
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the 95 has a busted rear end (friends car), but she still owes 2000 on the car. I'm going to bring my heap back from the dead and part out the rest of the car, then she's off to the gm sports salvage yard or i'll see if monster garage will let jesse tear it up with one of dem machine's thier building for only 3 grand(yeah right).
Old Jun 11, 2003 | 04:19 PM
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programming unavailable for the 93, have to get chips burned like the iroc's. That cool, but suck at the same time.
Old Jun 11, 2003 | 04:20 PM
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The 93 out guns it due to the fact that it doesn't have a MAF, try unplugging the MAF and take her out for a spin, if you like it swap the wiring harness and computer and save your self a few headaches. Unplugging the MAF will throw an SES light on the 95, but if you swap computers... essentially the engine will run as a 93 does. The injectors will still be a little larger but you shouldn't really notice the difference, if you do, swap the injectors with your 93 and call it a day. It would just seem a whole lot easier, cost effective, and I think you'll like the results.

Edit: a busted rear end will be easier to swap then an engine...but if you're set on swapping, then just swap the engine and wiring harness, plug it all in and be on your way. There really isn't much modification needed.

Edit: The wiring harness shouldn't be swapped, sorry for the confusion.

Last edited by scoobysnax83; Jun 11, 2003 at 04:24 PM.



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