boostedka's Turbo 3RZ Tacoma

video!?

 

Yes please

 

Once I finish breaking in my clutch i'll be able to start ripping on it some more so i'll hopefully get a vid made then. I'm at about 200 miles on it now.


@MadTaco461,
I noticed in a couple other threads that you're running a MAPECU3. I've been thinking about getting one since there is a GB going down for them here soon. How difficult was it to tune yours? I would ideally like to do the MAF delete and strictly use the MAP sensor. I've read that you need to essentially create fuel maps from scratch that way. I've not done a ton of tuning in the past, just with Apex S-AFC's back in the day like 13 years ago. What did you end up doing to get your tuning started? How close did you end up getting your tune to what you'd consider ideal.
I'm not looking to boost the shit out of my motor and make crazy numbers. I'm pretty happy with it at 8psi and wouldn't mind boosting a couple more to 10-11psi. I mostly want to clean up the tune and bring down the AFR's when it first gets into boost. I've read of guys running this set up with the stock ECU as I am doing with no issues so I don't know if I'd really NEED the ability to tune with my set up. What are your thoughts?

@Torspd, if you have input as well that'd be great

 

I like the mapecu3. Tomorrow I should have some time to get on my laptop and type up a good reply.

 

Thanks!

 

Do you feel like the stock air box with deck plate pulls enough air for the turbo?

 

I'm not running the stock box. Running a 3" intake tube with a cone filter straight to the turbo inlet. I'm confused with your question

 

Oh, saw in a cpl pictures on the first page, thought you had the stock box.

 

Oh yeah I get what you saw. I just started out with a few basic mods befor the turbo. I need to post an updated pic on the front page to clarify

 

With the mapecu3 I went the easy route. This is my first piggyback. I've tuned on a Cobb AP before this. So what I did is the exact same thing what you did pinks and a turbo. I added the mapecu 3 and did a maf correction to clean up my fueling. You start out with a blank fuel map. You can run a log. It highlights the fuel cells you ran across and you can make a correction to those cells. Take a few hours to do this. Plus you get o2/ afr adjust to help spool up. More than welcome to try out my o2 table if your truck is an o2 sensor instead of afr sensor.

I want to try out the maf elimination. I'd recommend this after you get used to how everything works. This is where you need to fill out an entire fuel map. You can do something called auto learning. I heard mixed reviews of it on the forums of it not working. You basically send a commanded voltage to your ecu making the truck think that your maf is there. You can't have a zero value for this tuning. I wish I had access to a dyno to just develop a base map. For the holes in the map I was going to try a linear interpolation. Not many base tables out there. Might try to develop one over the next 6 months on 550cc injectors.

The software is slightly buggy. I think it is an windows issue. Just be slow with it until you get the hang with it. Cool thing you can download the user interface to your laptop right now and play with the tables.

http://www.mapecu.com/downloads/

 

Totally unrelated, but it looks like Toyota did not install the thermoresistor for the low fuel light on the 98-00 trucks.

 

Yeah mine doesn't have a low fuel light unfortunately. I figured it was just b/c mine is a base model SR5 with manual everything, no cruise, no intermittent wipers, nada. Do you know if there a way to wire something up on the float to have the low fuel light come on? I know when I go on ski trips it kind sucks not having that. I just rely on my Ultragauge and hope it accurate.

Thanks for the info on the Mapecu. I'm not sure exactly what I want to do you yet, but this info helps out a lot. It runs really well now without major issues, it mostly just seems to take a while to drop the AFR's when It gets into boost making me a little nervous sometimes. I've never heard any audible pre-ignition or had any check engine lights. But I'm guessing I could extract a fair amount more power from it by fine tuning it more than the stock ECU is currently doing.
How you figure out if you sensors are O2 or AFR? It seems like 2000 was a transition year for quite a few changes where some trucks are like the pre '99 and some are like the '00-04. Mine seems to go along with most of the pre-'99 models such as having the 8 port intake mani. No clue it that means anything related to the exhaust sensors...
ANyhow, i'll probably download the software to mess with to see if I can figure it out and how I like it. THanks again for the help. I'll probably have more questions for you as I look up more info!

 

Good chance you have an o2 sensor if you have a federal version truck. The CA trucks made the switch for the 00 and newer. Getting rid of that open close loop flat spot was nice. Helps the turbo spool up faster down low too. If you want a lot of tuning options out of a piggyback the mapecu3 is a good choice. If you are doing just a simple maf cal, pull timing, and o2 adjust the AEM FIC and mapecu3 are probably your 2 best options. Pinks on their own are pretty sweet if you never had better than that on the truck. Once you clean up the fueling you'll notice the truck feels like an OEM truck that maybe came from toyota with a turbo.

If I get that maf elimination working good. I'll make a write up and a few videos on how to make a base map. There really isn't any good documentation on it. I just need it to be reliable to take the truck on long trips.

 

Thanks! So far your info has me leaning towards getting the mapecu through the GB on here this next month. I'm just a little intimidated by tuning. I feel a little less intimidated though know that you've done this already with a pretty similar set up as mine. It would be nice if I can go to you with a question here and there if I need.
Are you using the EBC feature? Does it require an external solenoid?
Also, did you wire it in using a PNP harness like the URD one or did you splice into the stock harness?
Thanks again for your help so far!

 

I was very nervous about finding the right piggyback. I saw more people self tuning the mapecu's than the FIC's when I got mine a few years ago. To start out you don't need to build a map. You just make corrections. I just didn't want to be dependent on someone to tune my truck. I used URD PNP harness. I asked Gadget for the wiring for my motor, year and transmission type since tacoma ecu's changed 3 times over the 10 year run. Makes it easier to solder all the wires outside the truck. Also when I convert to maf elimination I just make a small change to the harness. Still haven't ran my EBCS. I have one. Plan to use it for when I go up to 15psi. Right now I just tightened up my IWG threads to get me a few extra psi of boost.

 

That's very helpful info. I'm feeling more and more like I want to do this especially since the GB drops the cost down a fair amount, I just need to figure out how much it will all cost. I don't have a laptop right now, desktop only. What version of windows does this program need? I'll probably just find a cheap used one to for tuning only. What are the largest size injectors that the mapecu can run on these trucks? I'm guessing it's only a certain percentage of correction that it allows for since it's a piggy back unit? I'll probably be fine running 10-11psi on the pinks but just in case I get crazy with it down the road.

 

Some cheap used laptop will work just fine. Doesn't take any power to run it. Just delete everything off it so it doesn't freeze on you. I ran Windows Vista, 7 and 10 just fine. You can run 2x larger injectors. I'm going to see if it can handle my 550s. Only thing is I don't know my IDC so I only run as much boost so I don't need to add fuel above 5k to redline. Not sure if the stock ecu will cap fuel injectors on their own.

 

From what I have learned, our 98-00 trucks did not have the light in the cluster, the wiring, nor the sensor in the tank.

I did a cluster swap from an 01+ for the white gauges. I thought it might be a fun project to try and make the light using the existing fuel level signal. I'll let you know if I ever figure something out.

 

I used to have a '99. I could've sworn it had a low fuel light but it's been long enough that i don't remember for sure. I'll be researching this.....

 

Let me know if you find anything. The cluster I had before was out of a 2000 and it did not have the light. My truck has an empty pin where the signal wire for low fuel should be.