Speed density to mass air?

[LS1ow]

hey guys, im gunna be swapping my motor into a new car soon, and i was wondering if theres anyway make my speed density LT1(93) a mass air car? and if so hows it done?

[sweetbmxrider]

i would guess at the minimum a 94+ wiring harness with computer and MAF obviously. i have never heard of it being done though, not to say it can't be done.

[Tru2Chevy]

Yes, it can be done. Not sure what needs to be swapped besides wiring harness and MAF, but I am pretty sure there is more.

Is there a specific reason you want to go to a MAF setup?

- Justin

[LTb1ow]

MAF = vented opti.

And or no silly prom chips.

[Featherburner]

MAF = vented opti. Not in 94. Keep trying and your statements will eventually be correct.:rofl:

[LS1ow]

tuning

[LTb1ow]

Not in 94. Keep trying and your statements will eventually be correct.:rofl:

Yea and maybe one day I will be as smart as you.

[Featherburner]

Yea and maybe one day I will be as smart as you.I doubt it but you never know.

[sweetbmxrider]

MAF = vented opti.

And or no silly prom chips.

seriously what made you say that?

real question is why do you want maf?

[91chevywt]

Its possible by using a '94 harness, maf, and ECM. If you end up swapping your stuff into a '94+ car you should be set. Cant think of any differences in the engine connectors/sensors that would make a difference off the top of my head. Maybe EGR but not sure. If you end up going with a '93 car it is better to stick with a speed density setup. You won't feel a difference between the two. I prefer the PROM ecms myself simply because you don't need that MAF in your air stream but to each his own. Think about swapping into a 3rd gen? Would make a nice sleeper and you'd actually be able to see the back of the motor

[Tru2Chevy]

tuning

That's easy:

1. http://www.moates.net/
2. SpeedDensity.org (http://www.speeddensity.org/forumdisplay.php?s=&f=16&page=1&pp=20&sort=lastpost&order=desc&daysprune=-1)

- Justin

[91chevywt]

Yeah if tuning is the only concern, there are solutions to that. Speed density cars have been around for a long time and are definitly tuneable. I don't know what type of tuning youre looking for but I'm very happy with my PCM4less tune. PROM chips are a lot cheaper than computers

[Pampered-Z]

That is actually going to be a pretty complex conversion.

probably better to go with an aftermarket DFI if you're looking to just make tuning easier?

Opti needs to be convertered to a 94+ 93 opti/harness will not work on a 94+ ECM and a 94+ opti harness will not fit into a 93 opti. Could be the whole opti swap, cam, timing cover etc.
Oil sender different, need to use 94+ sender or entend harness

93s speedo is not ECM driven, may need to do something with wiring harness ( from the trans to the speed-o, and need to probably do some reprogramming based on if you have a manual or auto trans.

93's are 22Lb injectors, 94+ are 24lbs, need to reprogram or swap injectors.

Not sure what year it changed by TPS sensor and possible a few others changed, may need to address replacing some sensors.

[Frosty]

For all that work you're better off just converting everything to OBD2 while you're at it.

[LTb1ow]

But then he has to worry about CPS and installing reluctor wheels... which I think means no cool double roller timing chain.

[Frosty]

Oh would he? I don't know much about that swap, I don't deal with inferior motors...oh snap...:D

[LTb1ow]

LOL yes, he just might.

[JerzLT1]

For all that work you're better off just converting everything to OBD2 while you're at it.

so you mean switch to 96-97? i think thats what he wants to do ;)

[Frosty]

so you mean switch to 96-97? i think thats what he wants to do ;)

I thought only 93's were SD and 94+ were MAF regardless of OBD1/OBD2

[sweetbmxrider]

I thought only 93's were SD and 94+ were MAF regardless of OBD1/OBD2

yup. you also need to factor in the extra sensors going 96-97

i would stick with 94-95 pending on the availability of the correct timing case cover.