Scion XB 1NZ-FE Turbo build - Page 14 - Toyota Yaris Forums

Parmas · 01-13-2011, 10:00 AM

Quote:

Originally Posted by Nexus1155

Tuner needs to tune better.... you will have much greater numbers.

Sorry you are wrong here, richer mixture isn't equal to greater numbers infact it's the opposite way.

The best mixture is 14.7 stoich AFR and XBG map is going above it at lowest and highest rpm. So he is getting the maximum numbers he can achieve... richin the mixture makes the numbers lower but prevents damage to the engine

To Yoda... I think the conversion was made to account for the octane rating.... since at 3K rpm he's about maximum rich 10.

cali yaris · 01-13-2011, 10:19 AM

Quote:

The best mixture is 14.7 stoich AFR

stoich yes, at WOT no, better down around 12. Dyno pulls are done at WOT.

Parmas · 01-13-2011, 12:27 PM

Quote:

Originally Posted by cali yaris

stoich yes, at WOT no, better down around 12. Dyno pulls are done at WOT.

I forgot to mention 12 AFR for boost and lower AFR for high boost in case of boost spikes.

Nexus1155 · 01-13-2011, 04:35 PM

Quote:

Sorry you are wrong here, richer mixture isn't equal to greater numbers infact it's the opposite way.

Ehhhh, Sweet spot is around 11.* for turbos and theres a bunch of reasoning behind that. Of course you can lean it out and make power, but aiming for stoich, really? you will make more power from having a proper afr and more ignition advance.... Safer too.

scioncrew · 01-13-2011, 04:42 PM

YAA LEAN IS MEAN!! LOL LOVE IT!

scioncrew · 01-13-2011, 04:46 PM

love to see what that motor looks like now.

Scubaru Steve · 01-13-2011, 05:10 PM

Quote:

Originally Posted by scioncrew

love to see what that motor looks like now.

+1

Focus_Sh1ft · 01-13-2011, 05:48 PM

Nice numbers - scary lean AFR though.

Must be the high octane fuel and methanol that's keeping your motor in one piece.

Blown_xa · 01-13-2011, 07:10 PM

Quote:

Originally Posted by cali yaris

Congrats on some real nice numbers. Looks like it went very lean above 4k?

What was your boost on that pull?

How come it stops making power at 4200 rpm?

youre looking at the torque curve garm.

Blown_xa · 01-13-2011, 07:20 PM

Good numbers man. If you talk to your tuner again soon, ask him what correction he entered. I see it says sae correction method on the sheet. If its the latest method, it accounts for atmospheric conditions and a 15percent mechanical friction loss. Regardless, numbers are far from conservative as sombody say opposite. 300hp plus from a 1.5l is anything but conservative. So cheers to that.

H3LlIoN · 01-13-2011, 09:12 PM

Sweet numbers. Curious...what are you hoping to run at the track? What were your E.T.'s on the old build?

scioncrew · 01-13-2011, 11:59 PM

man thats a realy good looking dyno gragh. hopping you will take it to the drag strip.

good job on your build

xnamerxx · 01-14-2011, 01:06 AM

Check your fuel pump/lines/tune your running way way to lean I'm surprised you didn't melt a plug.

cdydjded · 01-14-2011, 10:40 AM

xBGOD: Have you considered using E85?

xbgod · 01-14-2011, 03:54 PM

Haven't considered E85. And to the other guy on my fuel pump, lines and so fourth, are you serious? I'm not even going to respond to that. All is working well and tune is great. I made good numbers and now I'm movin on. It's time to finish pimping it to look sexy and wash and wax it. The only thing I'm doing on the side is getting involved with someone else on a real cam set for these motors. This will be in the works for a little while but you can bet when I'm done with R/D with that it will be bullet proof. Don't ask me any questions on it cause it's top secret right now. But you can rest assured I will have a real head cam set for next year. It's been alot of fun and I set out to make power and did so. So if your a hater out there then beat my numbers, good luck.

XBG

Yoda · 01-14-2011, 04:26 PM

Waiting for the vid now so i can see it in action.

cali yaris · 01-14-2011, 04:59 PM

^ I think it would be good for the tuning community to know (and I would think you'd be curious too):

1. Why it was so lean.
2. Why the power curve gives up early.

Besides that, the low end power must feel very sweet. I don't have it down there any more.

Looking forward to seeing the video.

xnamerxx · 01-14-2011, 05:05 PM

Your running 15:1 afr at 5700 rpm's what about that screams yeah this motor is getting enough fuel. I have no idea what pump/pressure/fuel lines your running. Being that the afr only looks marginally good at 3-3.5k my guess would be that the fuel pump can't keep up. Just because it didn't blow up on the first run doesn't mean it won't. Id rather not see your motor that costs a pretty penny because your letting it run lean.
Unless your fuel system can handle another 30% increase in flow I wouldn't even have e85 on radar.

01-13-2011, 04:42 PM	#239
scioncrew Drives: SCION tC Join Date: Nov 2008 Location: HB Posts: 99	YAA LEAN IS MEAN!! LOL LOVE IT! __________________ 05 Scion tC allmotor 350+ hp 9.34@144mph 05 Scion tC sfwd 880hp 9.96@147mph 05 Scion xB 280hp 12.97@104mph 07 Toyota Yaris 357hp 12.80@107mph

01-13-2011, 04:46 PM	#240
scioncrew Drives: SCION tC Join Date: Nov 2008 Location: HB Posts: 99	love to see what that motor looks like now. __________________ 05 Scion tC allmotor 350+ hp 9.34@144mph 05 Scion tC sfwd 880hp 9.96@147mph 05 Scion xB 280hp 12.97@104mph 07 Toyota Yaris 357hp 12.80@107mph

01-13-2011, 07:20 PM	#244
Blown_xa Drives: Scion xA Join Date: Oct 2009 Location: Virginia Posts: 449	Good numbers man. If you talk to your tuner again soon, ask him what correction he entered. I see it says sae correction method on the sheet. If its the latest method, it accounts for atmospheric conditions and a 15percent mechanical friction loss. Regardless, numbers are far from conservative as sombody say opposite. 300hp plus from a 1.5l is anything but conservative. So cheers to that. __________________ Ptuning.com

01-13-2011, 09:12 PM	#245
H3LlIoN View User's Garage Drives: '09 Yarrrr hatch Join Date: Aug 2009 Location: Midatlantic Posts: 727	Sweet numbers. Curious...what are you hoping to run at the track? What were your E.T.'s on the old build? __________________ Toyota Moving Forward ...even when you don't want it to. Special thanks to Cali Yaris, 1NZYaris1 and lilredrocket

01-13-2011, 11:59 PM	#246
scioncrew Drives: SCION tC Join Date: Nov 2008 Location: HB Posts: 99	man thats a realy good looking dyno gragh. hopping you will take it to the drag strip. good job on your build __________________ 05 Scion tC allmotor 350+ hp 9.34@144mph 05 Scion tC sfwd 880hp 9.96@147mph 05 Scion xB 280hp 12.97@104mph 07 Toyota Yaris 357hp 12.80@107mph

01-13-2011, 05:48 PM	#242
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	Nice numbers - scary lean AFR though. Must be the high octane fuel and methanol that's keeping your motor in one piece.

01-14-2011, 01:06 AM	#247
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Check your fuel pump/lines/tune your running way way to lean I'm surprised you didn't melt a plug.

01-14-2011, 10:40 AM	#248
cdydjded Drives: Yaris LB Turbo Join Date: Aug 2006 Location: Miami FL Posts: 782	xBGOD: Have you considered using E85?

01-14-2011, 03:54 PM	#249
xbgod Banned Drives: "Burning It Down GTX2860RS XB" Join Date: Sep 2010 Location: Florida Posts: 349	Haven't considered E85. And to the other guy on my fuel pump, lines and so fourth, are you serious? I'm not even going to respond to that. All is working well and tune is great. I made good numbers and now I'm movin on. It's time to finish pimping it to look sexy and wash and wax it. The only thing I'm doing on the side is getting involved with someone else on a real cam set for these motors. This will be in the works for a little while but you can bet when I'm done with R/D with that it will be bullet proof. Don't ask me any questions on it cause it's top secret right now. But you can rest assured I will have a real head cam set for next year. It's been alot of fun and I set out to make power and did so. So if your a hater out there then beat my numbers, good luck. XBG

01-14-2011, 04:26 PM	#250
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Waiting for the vid now so i can see it in action.

01-14-2011, 04:59 PM	#251
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ I think it would be good for the tuning community to know (and I would think you'd be curious too): 1. Why it was so lean. 2. Why the power curve gives up early. Besides that, the low end power must feel very sweet. I don't have it down there any more. Looking forward to seeing the video. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

01-14-2011, 05:05 PM	#252
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Your running 15:1 afr at 5700 rpm's what about that screams yeah this motor is getting enough fuel. I have no idea what pump/pressure/fuel lines your running. Being that the afr only looks marginally good at 3-3.5k my guess would be that the fuel pump can't keep up. Just because it didn't blow up on the first run doesn't mean it won't. Id rather not see your motor that costs a pretty penny because your letting it run lean. Unless your fuel system can handle another 30% increase in flow I wouldn't even have e85 on radar.

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