engine management

[Installshield 2]

No problem man, I didn't view it as an argument...and honestly I am pretty unclear on some of the specifics too...The only thing I am somewhat positive on is that there are more than one way to go about the parallel setup...

An auto equipped car will need to be setup differently than a manual one I believe too...I talked breifly with Nick on the phone about this a little while ago, and he just mentioned some of the ways to go in parallel (I had some questions about Braden's setup)...So I basically look at it like this...The main problem with some of these universal standalones is the fact that not a single one can control the factory tach yet...That is the only advantage of a parallel setup, besides ease of tuning and installation...All the standalones can control rock solid idle, all kinds of sensors/triggering and the VTCS issue is easily disabled anyway...So with proper tuning, the stock ECU will only be needed for that dumbass factory tach, and it is easily setup to control the other goofball issues of some lighting, A/C switching and others (since you are leaving it in there anyway)...Maybe try pm'ing Braden, he knows the crap on the issue...and I am trying to recreate info I recieved a while ago...All I know is that there are options...

 

[thewrench]

Holy cow! I reread what I wrote, somewhere in there my inner voice was saying things that didn't make it to the keyboard, lol, but you got what I meant, and I was referring to Braden's Haltech thread.

So I guess it comes back to what unit Nick is using and how it's installed. And just quickly, what's your take on the stock MAF, restriction or no difference in relation to larger TB?

 

[Installshield 2]

From what I remember the stock MAF is a little larger than the stock TB...So honestly in most forms of modification, the MAF's restrictions basically only run as deep as that little "honeycomb" thing in there, and the little meter sensor hanging within the housing...

TB's can be a controversial upgrade though, and it really boils down to where you will be when you are completely done with your engine...TB's and Cams are basically one of the last things to be done to complete and engine, and in a lot of cases, FI or NA, a bigger TB is not really needed...There are circumstances in which the larger TB will definately help with breathing, but it would take a lot of money to get the engine up to the potential it would need to be to truely need one?..if that makes any sense...You can see a few whp with a slightly larger one than stock, but it is up to you on whether the price is worth that much of a gain...

 

[igdrasil]

Stock Tach = need run parallel = splicing

There is no plug-n-play standalone system yet. Everybody here is running parallel with Haltech, Microtech and Electromotive.

to just control timing all you need is a timing sensor installed in the crank pulley, the unit and the coils. The ecu will still read the stock sensors, but the unit will have total control of the ignition.

Same with fuel, install the unit, the wires will have total control of the injectors because ECU will not be able to control them, doesnt matter what the sensors reads.

CEL <--- my friend.

 

[thewrench]

OK, to continue with this thread, on ignition, if running in parallel, what sensors will each unit need? And what could, but not necessarily be changed? coils? magnetic p/up on valve cover? And so Nick, if your unit will be pnp, will it use the stock sensors and ignition system. I know you won't answer now, but it's a question for the future. ....OK, I think I found an answer for that, so assuming keeping stock sensors, will it run different coils? or perhaps a CD box? Just throwing some questions out there for reference.

Thanks,
James