N/T Turbo Tuning Questions

[yesItsdsm]

I am turboing my n/t and I can't Figure out whats the best route for me to go for tuning. If I just get a turbo ecu will that work fine? I want to use a maft setup and I was reading that you can tune with those. I also was thinking of a S-AFC. I'm a beginner tuner so what would be best to get me started while learning about tuning?

 

[freshlane]

Get all 3. Turbo ecu with give you the stock tune. Now with MAFT it does allow for adjusting but it isn't as accurate as an safc. If you don't want to spend that much money though you can skip the MAFT and get a 2g MAF along with the turbo ecu and safc. The MAFT is usually the expensive part.

 

[yesItsdsm]

I thought SAFC's were more expensive than MAFT set-ups?? Also I am new to tuning so I need something basic.

 

[csallis821]

I thought you couldn't use a turbo ecu such as one from a GST or GSX in a n/t turboed? If it was that easy, there wouldn't be so many threads on what to tune with. Read this:

http://dsmtuners.com/forums/showthread.php?t=111005

I read this last night and I was really impressed. I am very new to tuning, still trying to learn the acronyms of the tuning equipment, but after reading this I feel I could successfully tune my car. Also if you don't mind, in a short PM could you tell me how you did your turboed n/t. I am doing mine in about a month and was just wondering how others did theirs. Hope this helps!

 

[csallis821]

Oh, just noticed you have a 1G, but not sure if that makes any difference on swaping ECUs.

 

[csallis821]

some MAFT tuning stuff

http://www.fullthrottletech.com/showthread.php?t=105

http://dsmtuners.com/forums/showthread.php?t=174055&highlight=MAF-T

Just from what I have read, I think I am going to tune doing a SAFC. Seems easier and less stuff to buy. MAFT seems to work with the help of other stuff and I just want a single fix for the problem. Any idea on what is needed for SAFC tuning other than the SAFC and a logger and what expected prices are? Wasn't sure if you knew since you have looked into the stuff too.

 

[VelocitàPaola]

That makes a huge difference when comparing 1Gs to 2Gs. All 1Gs had the 4G63 motor, and in some cases, it really is just as easy as swapping a few parts. Turbo 2Gs had the 4G63 while N/T 2Gs had the 420A... the engines are so dissimilar that just swapping parts won't cut it.

 

[csallis821]

That's why said to check because I know with 2G's that's a big no no. I'm not really a 1G guy, not that I hate on them, some of them are pretty cool, but I pay more attention to the car I'm driving. Well in that case yesitsdsm, it looks like you could just swap ECU's but any future tuning would require a SAFC or MAFT or some other form of tuning.

Also not to steal a thread or anything buy I posted a thread other day (on the second page now) about a turbo kit form autosquare (I know a lot of people use their maniolfds and they seem to get good reviews) and was wondering if anybody has used this kit. Since there are a few n/t turbo guys on here it would be nice to actually get answers. Kinda pissed that I took the time to make a nice post and not the typical noob garbage and it gets no answers, advice or nothing.

Good luck on tuning yesitsdsm and let us know how it goes!

 

[yesItsdsm]

I appreciatte all the feedback but no one has answered my question though, What would be easiest and better for a beginner tuner?? MAFT or SAFC?? Arent SAFC's more expensive than MAFT setups?

Keep em coming!.. I know there are other noob tuners who could benefit from knowing a simple route to take for tuning.

 

[Midnightride]

here is what I would do, look in the forsale forums, basically if you look on here and ebay you can prob get all 3 for a good price. From what i have read you still want the SAFC if gettting a MAFT. I have asked similar question before and everyone has told me not to just get the MAFT. I was told get the SAFC and leave the MAFT zeroed out.

 

[Quasimondo]

If you get a turbo ecu, you'll need the wiring harness as well since the n/t harness has no provision for a knock sensor.

 

[yesItsdsm]

If you get a turbo ecu, you'll need the wiring harness as well since the n/t harness has no provision for a knock sensor.

Are you positive? because I've never heard anyone mention needing a harness. Check this picture out I have of a plug on the harness behind the motor. Does it look like where the knock sensor should be plugged in?

http://www.geocities.com/joh2thadoublenie/sensor.bmp


Good info here.. Keep it comin!!

 

[Quasimondo]

Are you positive? because I've never heard anyone mention needing a harness. Check this picture out I have of a plug on the harness behind the motor. Does it look like where the knock sensor should be plugged in?

http://www.geocities.com/joh2thadoublenie/sensor.bmp


Good info here.. Keep it comin!!

Hard to tell since that plug is almost in the same location as the EGRT connector. If one wire is white w/ black stripe and the other is white, then you've got yourself a knock connector. If it does have one, disregard my last statement.

 

[GVR4592]

You don't need the harness, you can add the necessary wires.

http://www.dsmtuners.com/forums/showthread.php?t=55457

 

[yesItsdsm]

You don't need the harness, you can add the necessary wires.

http://www.dsmtuners.com/forums/showthread.php?t=55457

Thats what I thought.

So the turbo Ecu will give me a base tune, SAFC to get a more in depth tune? Is it hard to tune with a MAFT? because I like the idea of venting to the atmosphere and The stock maf is horrible (looking and performing?)

 

[bastarddsm]

what you'll need to do is add the the 2 wires for the knock sensor (signal and ground), and then a wire for the intake air temp sensor. For the knock sensor it should be sheilded cable. I used microphone coaxial cable from radioshack for mine. The air intake temp sensor can be plain old 18awg. also you need to wire in the injector resistor pack you will also need to put a check valve in the emissions vacum line. I recomend getting it all put together in stock configuation, 450cc inj and no maft or afc just to get the thing running, and drive it like that for a while just to get the buggs out of it, trust me there will plenty. this will keep the possible problems to a minimum, and since you can't tune it you can't get it out of tune and destroy your motor. The n/t bottom end is just as strong as the turbo, but with 9:1 compression it will be much less forgiving.

My car has a stock n/t shortblock and a milled head my compresssion is about 9.4:1, and it seems to run pretty good with no tuning, it has trapped as high as 96mph with a stock exhast and 11psi.

You do need to make sure you have a good knock sensor and run good gas. In the summer time if i play with it lots my will get knock retard.

good luck, you won't belive how it runs when you gett it running for the first time.

 

[yesItsdsm]

Thanks guys, currently I'm working on my drivetrain (clutch slave cylinder, fluids, master cylinder) and I'm lowering my car on kyb gr-2's and eibachs (got em for $150 at the local junkyard!!!) in prep for boost.

I think my best route would be like bastarddsm said and to just use the stock turbo ecu for now. However I'm still looking into the maft setup.

 

[GVR4592]

If you're going to get a piggyback fuel controller, go with the SAFC. It's easier to tune than a a maft and it has more control.

 

[yesItsdsm]

Is anybody running datalogging software via there laptop? And If so where can I buy a cable that plugs into my laptop? I know I have to get a datalogging setup for when I'm boosted to aid in tuning.

 

[yesItsdsm]

Nobody knows about the cable?

Also is It possible to tune my car to run bigger injectors without boost? Because I wanna do as much as I can to get my car boosted but It's COLD out, so I'm doing a little at a time.

 

[yesItsdsm]

Nobody knows about the cable?

Also is It possible to tune my car to run bigger injectors without boost? Because I wanna do as much as I can to get my car boosted but It's COLD out, so I'm doing a little at a time.