Going single?

[chuckmuska2005]

I have a single turbo kit but don't know about what electronics would be necessary to complete the change over to single. I know the 1jz runs a little ruch from the factory so I figure I should do something about that as well. I've thought of getting a wideband like an AEM Ugo or the LC-1 wideband. please help.:1zhelp:

 

[GotTurbos?]

Yessir, not too much needed. You're probably going to need a 2jz map sensor, a fuel controller like an SAFC, and wideband to monitor your air fuel ratios, I've had the LC-1 and the AEM, and I like the AEM a lot better. You're also going to want to upgrade your fuel pump and injectors, as the stock ones aren't going to get you very far once you go single.

 

[chuckmuska2005]

Yessir, not too much needed. You're probably going to need a 2jz map sensor, a fuel controller like an SAFC, and wideband to monitor your air fuel ratios, I've had the LC-1 and the AEM, and I like the AEM a lot better. You're also going to want to upgrade your fuel pump and injectors, as the stock ones aren't going to get you very far once you go single.

I have aftermarket injectors but they're 680cc and I found that this one air/fuel controller only controlled up to 120% injector capacity. Would this be safe or should I get some 2jz-gte injectors and the wideband with an SAFC?

 

[GotTurbos?]

You won't be needing to use 120% with 680's. I'd be surprised if you even had to add fuel anywhere with those, most of your map will have you pulling over 30 percent with injectors that big. If the car is a daily driver. I might go with 550's because they might be a little more friendly in the drivability area, but if you're going with anything larger than a 61 you'll be able to max out 550cc injectors pretty easily, so it's a tough call. I have the AFC NEO and it is really great so far, I have no complaints with it.

 

[chuckmuska2005]

well if i run the 680's won't the ecu need to have a piggy back?

 

[GotTurbos?]

Yes.

What I'm saying is that the SAFC has PLENTY of room to adjust fuel, so you shouldn't worry about whatever max adjustable range you saw.

 

[chuckmuska2005]

You won't be needing to use 120% with 680's. I'd be surprised if you even had to add fuel anywhere with those, most of your map will have you pulling over 30 percent with injectors that big. If the car is a daily driver. I might go with 550's because they might be a little more friendly in the drivability area, but if you're going with anything larger than a 61 you'll be able to max out 550cc injectors pretty easily, so it's a tough call. I have the AFC NEO and it is really great so far, I have no complaints with it.

What do you mean when you say larger than 61? And lets say that I'm gonna run a gt66 with a .81 ar with 44mm gate. Is this outta the stock ecu range. I've heard good things about the AFC NEO and the AEM Ugo. So I'm pretty sure those would be the electronics I will choose. Will I need a piggy back or will the SAFC NEO be enough?

 

[cbutler]

What do you mean when you say larger than 61? And lets say that I'm gonna run a gt66 with a .81 ar with 44mm gate. Is this outta the stock ecu range. I've heard good things about the AFC NEO and the AEM Ugo. So I'm pretty sure those would be the electronics I will choose. Will I need a piggy back or will the SAFC NEO be enough?

neo=piggyback

 

[chuckmuska2005]

ahh I see, I had that running through my head and figured that's what it was for.

 

[tissimo]

IMO the I wouldn't go over 550s with the stock ecu and a piggyback.

As for the wideband innovate all the way imo, being able to recalibrate the sensor is great on keeping the unit accurate even with an old o2 sensor. My car currently has a 3 year old o2 sensor and still reads 100%.

 

[Gritz]

What is your power goal? with that info the people here can help you alot more..

 

[mustangnick88]

Yes.

What I'm saying is that the SAFC has PLENTY of room to adjust fuel, so you shouldn't worry about whatever max adjustable range you saw.

my afc neo would not run right with 650cc. to big for the afc to handle.

 

[GotTurbos?]

my afc neo would not run right with 650cc. to big for the afc to handle.

Interesting, where were you having problems? my 550cc map hasn't really changed too much over stock. I'm guessing you couldn't get it to lean out enough under normal driving conditions?

 

[1JZS13]

Interesting, where were you having problems? my 550cc map hasn't really changed too much over stock. I'm guessing you couldn't get it to lean out enough under normal driving conditions?

any SAFC or NEO will only control up to 550cc injectors. sure u could run a 650 but it wont change a damn thing and it wouldnt benefit anything

 

[GotTurbos?]

Good to know, I just figured since I still had SO much more room to mess with fuel on my 550's that upgrading the injector size 20% wouldn't be impossible to get running correctly. My mistake.

 

[chuckmuska2005]

What is your power goal? with that info the people here can help you alot more..

I'm lookin to make around 450-500 max for now.

 

[chuckmuska2005]

any SAFC or NEO will only control up to 550cc injectors. sure u could run a 650 but it wont change a damn thing and it wouldnt benefit anything

So doing this wouldn't hurt the injector any?

 

[albert74]

I've seen afc 2's controll 720cc injectors. There's one guy down here that put down over 600rwhp on a 1jzgte with an safc 2. So it can be done. Sure a standalone or even an emanage blue or ultimate will do a better job, but if you can't afford those an safc2 or a neo will controll 680's. Trust me

 

[1JZS13]

I've seen afc 2's controll 720cc injectors. There's one guy down here that put down over 600rwhp on a 1jzgte with an safc 2. So it can be done. Sure a standalone or even an emanage blue or ultimate will do a better job, but if you can't afford those an safc2 or a neo will controll 680's. Trust me

at over 600 your pushing alot of fuel. and it comes back to them basically pumping gas. a car will run RICH, with injectors that are too big. and personally i am not willing to hydrolock or even attempt to "play it safe" when im running anything over what a company says is safe. how much is this guy boosting? you figure a 720 are good for 600ish area and rnning injectors over 85 percent duty cycle is asking for problems quite risky if you ask me.

 

[chuckmuska2005]

at over 600 your pushing alot of fuel. and it comes back to them basically pumping gas. a car will run RICH, with injectors that are too big. and personally i am not willing to hydrolock or even attempt to "play it safe" when im running anything over what a company says is safe. how much is this guy boosting? you figure a 720 are good for 600ish area and rnning injectors over 85 percent duty cycle is asking for problems quite risky if you ask me.

Well as far as the duty cycle is concerned, I don't think you would run the injector that hard trying to get into that power range. check this website.
http://www.rceng.com/technical.aspx

I found that at a 55 percent duty cycle at 50psi, (with .5 brake specific fuel consumption) that would put someone in the 450hp range with 668cc's on a N/A setup. I checked my injectors at a 70% duty cycle and 50psi at the fuel rail ( .62, brake specific fuel consumption for a turbocharged setup) I found that I would be at the 470 range, of course with a good tune.