[Telion]

Thanks, that should be about the extent of the wiring that should be seen.

 

[lgnd4u2nv]

Ive been looking at this thread every day since I posted on the first page of the thread.

The amount of custom work you have done, and the amount of research you have done behind the scenes is insane. I am confident that this this is going to run very nicely once you fire it up.

Waiting for you to finish is like a 5 year old waiting for Christmas morning.

Keep up the good work man! Everyone on the forum is cheering for ya!

 

[DandDEE]

you are what we call a pioneer...

 

[3.2legend]

dude heat is always an issue when going turbo. telion your whole setup is going to need to be completely wrapped with heat shield/wrap, your engine bays ventalation will need to be improved. and you will probably need an even bigger radiator than the one you currently have,its a two core right? a three or four core will most likely be needed

LOL, the placement of what he was asking, either the blow off valves or the waste gates i dont remember which, were fine where they were.

 

[Telion]

Ive been looking at this thread every day since I posted on the first page of the thread.

The amount of custom work you have done, and the amount of research you have done behind the scenes is insane. I am confident that this this is going to run very nicely once you fire it up.

Waiting for you to finish is like a 5 year old waiting for Christmas morning.

Keep up the good work man! Everyone on the forum is cheering for ya!

I hope you are right, lol I actually think it will take some tuning.

you are what we call a pioneer...

Thank you.

 

[3.2legend]

I am confident that this this is going to run very nicely once you fire it up.

Really, because i think its going to run like shit! This setup needs to be tuned immediately. im guessing since he does chips and such that hes going to have at least a half way guessed base map to start the car.

then after that, i would trailer it to a dyno to get it tuned correctly. The stock computer is not meant to run what telion has put together by any stretch of the imagination.

 

[Telion]

I don't know about a trailer I think (hope) I will be able to street tune it via what I have on hand well enough to get it to a dyno shop. But on a similar note I see some has been busy; plan C music to my ears.

from: alienclay on May 27, 2008, 04:59:53 AM
Does this z110 file also apply to the C32A1 engine? (91-95 acura legend)
Also the C32A1 has two crankshaft position sensors, the 1911 fic only has connections for one. Is this a problem?

well well well, looks like the [AEM] fic 1911 also works well for the acura legend 1991-1995 wired and setup the same as the nsx 91.
(aem if you want to confirm call pure tuning in toledo ohio.)

 

[lgnd4u2nv]

I hope you are right, lol I actually think it will take some tuning.

Thank you.

Really, because i think its going to run like shit! This setup needs to be tuned immediately. im guessing since he does chips and such that hes going to have at least a half way guessed base map to start the car.

Well that is true. I left out the fact that tuning will be needed. I guess what I meant by my statement is that its not gonna blow up.

Either way, this build is awesome.

 

[3.2legend]

Well that is true. I left out the fact that tuning will be needed. I guess what I meant by my statement is that its not gonna blow up.

Either way, this build is awesome.

oh yea, definitely much props on the build, especiallly the exhaust.

 

[Telion]

Thanks guys, the exhaust has become more involved than I thought Joe is a Savior in this respect.

As for tuning, not being able to find the code for the 02 sensors in closed loop has been on my mind all day and I am yet to determine how I am going to find the code for it, so this is becoming more and more appealing by the moment.

F/IC Installation Notes: Acura NSX 91-94, 97-99

1. The FIC has an O2 table, which allows you to change the O2 signal that is sent to the stock ECU. For older cars, we recommend using the O2 table in Offset mode, with MAP as the load (y-axis for the O2 table). Values between -0.1 and -0.4 will change the sensor voltage in a way that makes the car run richer than 14.7 in closed loop mode. As with any other aspect of the car's tune, you should verify that your changes are working the way you intend them to. Without adjusting any other parameter in the FIC, you should be able to "trick" the stock ECU into running richer in closed-loop mode using the O2 table. This is very important: if you do not use the O2 table properly, the stock ECU will change the short- and long-term fuel trims until the AFRs are about 14.7 in closed-loop mode. I haven't personally tested the NSX, but most new cars respond VERY quickly to the O2 sensor voltage: for instance, adding 10% fuel via the FIC's fuel map caused the AFRs to change from 15 to 14 at idle, but the stock ECU detected the change and corrected back to 15 AFR in under ten seconds. If the car was tuned at 12.0 AFR and the stock ECU trims cause this to revert to 14.7 AFR that could cause engine damage. If at all possible, I would suggest tuning a couple of OBD2 NSX's so you can get an idea of what O2 voltages are required to keep them happy. Having an OBD scanner is a HUGE help in this case.

2. Resetting the stock ECU will not change the FIC's calibration, and should not change the way the car runs. A good tune should run well when the fuel trims are zero, and if the O2 table is configured properly the FIC will not cause the short-and long-term fuel trims to change significantly.

 

[car2n]

I did not know about this AEM F/IC option, I read some in the link you have posted and sounds very interesting I have planned for the NSX AEM ECU if everything comes allright...

Keep us informed about your finds about this in case you go with it.

 

[Telion]

I started to PM you about this then thought you would likely see it here as far as support and cost it seems like a very viable option for me.

 

[reboticon]

Whoa its been almost 10 pages since I caught myself up on this. Its coming along fantastically. I really appreciate how you've posted all the problems you've run into along the way, and how you went about correcting them. I understand when people leave these things out in a final build thread, but I hope you keep them. Thats the stuff that I really like.

No project ever goes like it was planned, and its the way that you find a creative solution that is intriguing to me. Not only does it let the rest of us have an emotional investment in each step, but it also allows us to live vicariously through you.

For a lot of us, the chance to be able to build a LEGEND as crazy as yours is not something we can realistically afford to do, especially for those of us in areas where Legend parts are pretty rare (imagine those South American guys chances) so its been really cool seeing every step. Keep up the great work!

For the 02 sensors.. Well, you know far more about tuning ECUs then I ever will, so if this sounds silly, pardon my ignorance:hide:

When Ford did the rare crazy mustangs, Cobra R, Saleens in the EEC-IV OBD1 era, the way they did 02 sensors was to just use non working 02 sensors that provided a constant voltage to the ECU that was always slightly rich. Then the rest of the sensors were used to tune the final mixture off the base 02 reading. That way they didn't have to worry about detonation.

Those motors are pushrod though, and tuning may be completely different for the Legends SOHC, and you might be way past what Im talking about, but I just thought Id throw it out there. Good luck and keep those updates coming!

 

[Artillery129]

look really good telion, but I think you should put a raidator in the final build (just teasing ya) very well done, VERY well done

 

[Telion]

Whoa its been almost 10 pages since I caught myself up on this. Its coming along fantastically. I really appreciate how you've posted all the problems you've run into along the way, and how you went about correcting them. I understand when people leave these things out in a final build thread, but I hope you keep them. Thats the stuff that I really like.

No project ever goes like it was planned, and its the way that you find a creative solution that is intriguing to me. Not only does it let the rest of us have an emotional investment in each step, but it also allows us to live vicariously through you.

For a lot of us, the chance to be able to build a LEGEND as crazy as yours is not something we can realistically afford to do, especially for those of us in areas where Legend parts are pretty rare (imagine those South American guys chances) so its been really cool seeing every step. Keep up the great work!

For the 02 sensors.. Well, you know far more about tuning ECUs then I ever will, so if this sounds silly, pardon my ignorance:hide:

When Ford did the rare crazy mustangs, Cobra R, Saleens in the EEC-IV OBD1 era, the way they did 02 sensors was to just use non working 02 sensors that provided a constant voltage to the ECU that was always slightly rich. Then the rest of the sensors were used to tune the final mixture off the base 02 reading. That way they didn't have to worry about detonation.

Those motors are pushrod though, and tuning may be completely different for the Legends SOHC, and you might be way past what Im talking about, but I just thought Id throw it out there. Good luck and keep those updates coming!

Thank you so much I really appreciate the depth of your response, it puts in writing what I have been hoping to share. I have been attempting to bring to the forum what I experience as I am going through this process (with a slight time delay in some cases).

About the 02 sensors I had a similar idea. I was thinking that the AFC intercepts and modifies the the fuel injectors and they are based on voltage output so why can't the same be done with the O2 sensors. Now if the ECU is coded to look for a certain voltage to = approx 14.7 AFR and it worked in a similar manner to other 0-5v sensors with around 2.5v being desirable than this could be possible with a resistor or something or possibly a potentiometer (variable resistor); but there are so many unknown factors. that would have to be thought through, but its a great idea to go on. I may have to come back to that.

 

[Telion]

Lol that has me thinking how crazy would it be if it were that simple, a wideband, a couple potentiometers, a Motorola 3 bar map sensor, and a chipped ECU. But honestly I won't be going this route.

 

[reboticon]

Yeah thats exactly how the Ford EEC-IV works. I happen to remember that the 91 Cobra in particular uses just a slightly rich signal at all times. Im not sure if they just run the signal from a junction with resistors, or if the 02 sensors themselves have resistors built in to always send a constant signal.

I also met a guy locally recently who does what sounds to be similar with his chips, which he makes for people with turbo civic/teg builds. I don't know the specifics, or even if the Legend is the same (its obd1 plugs tho right?), but i think he would answer any questions if it would help. His chips eliminate the 02 sensors completely, you just take them out and screw in a stop. Whatever he is doing is providing the ecu with a slightly rich signal without the need for any external wiring.

 

[Telion]

actually it is a cross between OBD 1 and 2, and eliminating the O2 sensors I would not do.

 

[Telion]

Ok you guys know me and my inability to withhold any information regarding this build so here is the direction I decided to go. I didn't want to take any uncalculated risks regarding engine management. I just have too much money (to me) into it to have it go into a closed loop AFR of 14.7 and cause a serious problem or damage. Though I do think that potentiometers would be effective I decided to address a couple other things at the same time. This solution addresses the map sensor, single cell map tuning ability, and having an item with an on-board interface and real-time tuning for my Car PC and/laptop. So at that point I knew what the clear winner was. Then I was able to find it at a smokin price of 318.00 shipped brand new after a discount coupon I had been sitting on.

This is the pic of the conversion wiring harness that I am working on so that it is easier to transfer from car to car with the addition of a line to the manifold vac port.

I also don't think that I mentioned in this thread that I did decide to go with Fujita on the intake filters.

I am pleased with the amount of glue they used to seal these this often is an issue with cheap filters.

Though it would be nice this doesn't come with the unit I found it on there forum.

 

[legend coupe]

very nice telion... where did you get those filter cones?