Sorry if this is beating the dead horse, It seems like it would be, but I searched and didnt come up with what I was looking for

If I have a MAF car, what do I need to swap to Speed Density?

the Chip that will handle it I know that, then what...just the part of the harness that goes to the MAP Sensor?

 

I dont know what methods you used for search..... but theres more information than a special ed kid would need to do ths swap all over the boards and in daviss site.

Go to the tech articles to start

 

I'm special You'll need a SD ECM to start, memcal, VSS, KM, harness connectors, map sensor, and a good set of prints. But don't take my word for it, go search it out for specifics. I have almost everything I need to do the swap, but I ain't in no hurry. I just finished my TPI swap (I did it without posting any questions on how to do it either. I think that deserves a WHOLE cookie.)

 

Need a new knock sensor too

 

Don't need a VSS, 3rd gens already have one. The mechanical speedometer cars have one in the instrument cluster.

 

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You guys are too funny.

Hey, if a guy actually uses a search but doens't find an answer that he is lookin for leave him the hell alone. Least he tried unlike most on here.

 

damn, all those thirdgens look sweet in your sig .,... its like a thirdgen mafia ... haha

 

There should be quite a few more at our next meet on Aug 24th.

 

The funny thing is, i bet most people could use a book on how to use the search feature. I'm a computer engineer by trade so i'm quite familiar with needing to look up information. I've also been around this board for a lot longer than it has existed for. And yet i'll admit that there are times when i'll go nuts trying to find a post that i know for sure exists. Like recently i wanted to find the PN for the GM fuel injector o-ring kit. Didn't find the post i was looking for till i finally tried it as 'o-ring' instead of 'o ring'

In other words, you have to be patient and treat the search feature as research time. You can't just plug in some words and expect magic. You actually have to think of the most relevant terms, and combinations of terms to get anything useful from it, as well as variations on spellings, using wildcards and logical operators, etc.

Nonetheless, that legwork pays off. Notice how you rarely ever see me ask a question? It's not that i don't have them, i'd just rather search and find older more comprehensive help than re-post and hope someone who isn't a moron finds my post and replies.

And to answer the original question of what do you need to swap to SD. My honest answer would be, if you don't know, you shouldn;t be attempting the swap yet. I'm not saying that to be mean, just being realistic. It's not that complex, and if you need someone to point out every little piece of it, you're going to get lost very quickly. I'd hate to see someone out in the garage with their entire car and harness ripped apart wondering where something goes, or have everything together only to have a non-functioning car and that 'oh ****' feeling running down their spine.
I'd start with the schematics and start making notes on what is the same / different. Should then be pretty obvious what you need. And your familiarity with the circuits will make it 1000x easier to actually complete the swap and troubleshoot it when problems arise. The only thing that wouldn't jump out at you from doing this is that MAF and SD cars use different knock sensors...

 

http://www.eecis.udel.edu/~davis/z28/

I think this should be the first place to look.

 

if u think that pic is hot... wait till the jersey boys get there act together this weekend! its gunna be hot... im gunna need an arial shot of this pic!!

 

Ed, you covered most of the problem in your post. I did search. I did use diff. spellings, wild cards, etc. but still came up with nothing. I know its there, but sometimes the search doesnt find stuff. ...like one time I was looking for a thread I posted in I searched for the topic, partial words in the topic, still havent found it today. And actually I can normally find anything on the net. Just not on this site for some reason

And on the other hand, I'v heard others say it to, if everyone searched for there topics many hints, tips, tricks would never come up from other people who have done stuff. The board would be VERY dead, after 20,000 members plus or whatever its up to post there questions and get their answer....just about every question someone could ask can be found by searching. If we didnt want a discussion board it should be closed, made into archives so they can be searched.

I think my book would be more usefull to some people than a book about using the search button!

 

A quick search on '730 swap parts' turns up https://www.thirdgen.org/techbb2/sho...730+swap+parts as one of 9 results....which has the link to mike davis's page....which is the most comprehensive answer to what do you need and how do you swap MAF to speed density.

I agree, some things are worth discussing. But some things are best just left to one solid final answer. You asked what do you need to swap to speed density. A quick glance at mike's page, and a quck look at the wiring harnesses of both cars (which you'll need to become familiar with anyway) would show you the straightforward answer. I know you're seeking other input, but notice how only pieces of it came at you. How can you trust info like that, and why wouldn't you want to see a definitive answer instead, with complete instructions?

 

Which speed density swap are you wanting to do?

I converted my 89 with the 165 ECM to use 808 code, there's a bunch of stuff on the PROM board about it.

If you can't find anything on thirdgen.org, try www.diy-efi.org/gmecm mailing list archives. They have covered almost every topic when it comes to fuel injection.

 

For anyone who wants to covert to Speed Density. Stop posting the same questions, read this.

GO HERE: http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/

I converted my 89 IROC with the 165 ECM to the SD 730 ECM. I ran into a few problem of problems.

If you are going to do this you are going to need to know how to burn proms. SD is super touchy. Every mod you make you are going to need to burn a new chip to make your car run optimally. You can get by without burning a new chip for every mod but your car will not be running optimally. My car idled very bad when I first did the swap, had to redo the VE tables on the PROM. Also make sure you label each wire before you re-pin your harness.

What you need:
- 730 ECM
- New knock sensor
- MAP sensor
- New 730 350 or 305 Mem-Cal (the 350 and 305 mem-cals are different)
- PROM burning equipment

After tuning my car and burning many new chips I have to say I like SD A LOT more then my 165 MAF ECM. It is super easy to tune. Also I do get better throttle response. So if you know how to burn chips I say go for it. If you don’t know how to burn chips I wouldn’t do it.