pig rich 1j map and 550s?

[scottiedawg66]

Hey folks, im pig rich at idle, just fired it with only the intake manifold no IC piping. Its off the gauge rich at idle running mkiv 550s and 1jz map. I figured the o2 sensor would handle the idle even with 550s. Is this normal or do i need to trouble shoot, resistor installed and no codes??

~scott

 

[bigaaron]

A stock o2 sensor can not adjust for a 30%+ increase in fuel across the whole rpm range. You will need a 2jz map sensor and a safc, or an E-Manage. An safc alone will not be enough.

 

[tissimo]

umm.. installing like 45% bigger injectors are going to require some type of managment.. so yes that is normal

 

[scottiedawg66]

ite, i have safcII and a 2jz map but i just wanted to see whats up with the stock map sensor. Will it idle with just a 2jz map and no adjustments with safcII?

~scott

 

[bigaaron]

It might idle, but I would not drive it around. If you have it already, plug it in and let us know

 

[tissimo]

itll still idle very rich.. why dont you want to put in any adjustments?

 

[scottiedawg66]

ok, well tomorrow ill tackle it with 2jz map and safcII. Ijust was hoping that id only be using the safcII to adjust 80% < throttle with a 2jz map, but i guess that was wishful thinking.

~scott

 

[suprastanger507mgte]

ite, i have safcII and a 2jz map but i just wanted to see whats up with the stock map sensor. Will it idle with just a 2jz map and no adjustments with safcII?

~scott

Yes it will Scott. I have the 2jz map and the 550s and it was fine without the SAFC-II. But it will be richer so getting it tuned asap will be the way to go.

 

[935motorsports]

Get that emanage or SAFC already!

Why would you put in 550s with no management?

 

[RacerXJ220]

Just tune it for WOT, and WOT to work?

 

[SkyHawk Ecks]

I was there when Scottie started this beast for the first time yesterday. Fucker sounds MEAN.

 

[itr206]

A stock o2 sensor can not adjust for a 30%+ increase in fuel across the whole rpm range. You will need a 2jz map sensor and a safc, or an E-Manage. An safc alone will not be enough.

Wrong answer.
I have done this on a stock map sensor and got the idle pretty damn close to 14.7. I just put in my Emanage and its dead on now.

 

[bigaaron]

Wrong answer.
I have done this on a stock map sensor and got the idle pretty damn close to 14.7. I just put in my Emanage and its dead on now.

If it was so useable, why did you buy an Emanage? So.....you did need an Emanage, and the stock map and o2 was not enough.
Also, isn't the stock map sensor somewhere around a 2 bar, and the 2jz is around a 3 bar? So if you want to run 20+ psi, that stock map is not going to cut it, no?

 

[itr206]

If it was so useable, why did you buy an Emanage? So.....you did need an Emanage, and the stock map and o2 was not enough.
Also, isn't the stock map sensor somewhere around a 2 bar, and the 2jz is around a 3 bar? So if you want to run 20+ psi, that stock map is not going to cut it, no?

Yes, it was adequate. It was just soo rich that I could not boost past 1-1.1bar. So I put the Emanage in to fine tune it to make the power. It was more then driveable and boostable under 1.1bar though. Just on the rich side. Nothing abnormal from a stock boosted motor under boost. It did idle a little richer, but nothing crazy
With the stock map sensor I have pushed over 2bar already . no need for a 2jz map sensor. Pointless mod IMO.

Again, I am not talking this because I "Think" it will work. I am letting you all know It DOES work.

 

[suprahero]

I'm glad you got yours to work itr, but for what it's worth, if Aaron suggest that I buy a 2jz map sensor, then I'm buying a 2jz mapsensor. After all, he does work on 1jz's and 2jz's for a living and seems to have the respect of almost all of SupraMania's members. He has helped me out alot during my 1jz swap and hasn't charged me a penny for the hours of phone calls, not to mention his time. Every car will not always perform the exact same as the next one, but I put alot of stock in Aaron's opinion.................lol

 

[itr206]

Exactly as it is his Opinion. You can do as you wish, but I can tell you it works and works more then fine.
I dont give opions, I give facts.

I can tell you too, if you are using an safc, 550's and a stock 1JZ map you can take out 28-30% fuel and you will run dead on and make a boat load of power and can run 2 bar on that stock 1JZ map sensor.

On stock fuel and stock twins you can take out about 15-18% and have the fuel dead on too and push about 1.1-1.2 bar easily and make the twins scream.

Wether you take my opinion or not, doesnt bother me. This is why I do not share my set up and tricks for things because people tell me it doesnt work, or diss it in some way. All I know is my setups always work well and cause me no problems. Take it for what its worth

 

[suprahero]

I am using an SAFCII and I have sard 540 injectors. I am also using a Garrett GT35r turbo and will have to wait to see how rich my car will be running. I wasn't in no way dissing you, I dont' have any proof that what you are saying is wrong. You seem to be a knowledgeable person, and I KNOW Aaron is a knowledgeable person. You two will just have to agree to disagree this time..............lol

 

[bigaaron]

Thanks Suprahero, and I am not saying that itr206 is wrong, just that not everything I said was wrong either. I guess it was his "wrong answer" that threw me off.

Like he mentioned, you could get the car to run with a 1jz map, BUT, you can't dial it in to the best tune possible, which is the only real option when I think about modding the fuel system on a turbocharged car. You can get the AFC to compensate for 440cc injectors, but 550cc is right on the edge of what will and will not work with just an AFC. I guess we're just arguing semantics this time.

I just try to give best advice, just like what itr206 is doing here. No hard feelings....

 

[itr206]

I was going more off of what Scott was asking for and what you were advising.
Scott was emailing me as to if it was gonna be too rich and I was giving him more info as to what is truly needed as to what might be advised by others.
550"s I dont belive are pushing the limit of the SAFC2. The SAFC1 maybe. I thought the SAFC2 had like + or - 50% in adjustments?

 

[935motorsports]

SAFC2 goes to minus 50.


I agree that you do not "need" a 2jz map, especially if you have an eManage. That is what the eManage is there for, to make corrections.

Sure it would be nice to have a 2JZ map sensor, but it is by no means required.