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

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, 07:20 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.

H3LlIoN · 01-17-2011, 08:40 PM

Also, this post got pushed to the side and I was hoping for some speculation from Aras. Thanks

Quote:

Originally Posted by H3LlIoN

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

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

Blown_xa · 01-14-2011, 10:55 PM

Quote:

Originally Posted by xbgod

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

Hey man, don't worry about the critical posts. Every forum is full of haters and people who just sound off to make themselves feel better into thinking they know what they are talking about ... even though they don't. Do your thing, ignore the crap. A formula 1 team could come on this forum presenting performance parts, people would still question them and complain. They would "check with their sources" to satisfy themselves with usless opinionated info.

Yoda · 01-14-2011, 04:26 PM

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

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.

xnamerxx · 01-14-2011, 06:28 PM

Im pretty sure the power is giving up so early because the turbo is to small for the amount of power hes making. You can see it in the torque curve how it starts to die at 5k rpm's. Dont know the specs on his cam or the rpm range of the intake he's running but Id have to hazard a guess and say both are rated for something like 3-7.3k rpms but the turbo doesn't have the cfm to keep up.

If you look at the compressor map for the disco potato it gives up on at about 35 lb per minute with 2.2 bar. Rule of thumb is 10 hp per every lb per minute so easy math says 350 hp give or take 20 hp.

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.

cdydjded · 01-16-2011, 11:38 AM

Quote:

Originally Posted by cali yaris

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

IMO

1 Cant intelligently answer that from this side of a keyboard. Need more info....
2 Ported head with stock cams

Nexus1155 · 01-14-2011, 09:53 PM

Quote:

Tial / Garrett GTX-2860 RS Turbo w/ SS Housing and Billet Wheel
Walboro 255l , Aeromotive regulator , Perrin fuel rail ,
Aerospace Components custom fuel block for NX kit
680cc Precision injectors

for xnamerxx ^^^

Does your standalone tell you the duty cycle the injectors are running at. Looking at that graph seems like you have something more to work with, like a handful of the people here say.

xnamerxx · 01-14-2011, 10:31 PM

Its a walboro 255 so it should be good for the power the injectors are 60lb which are again probably good for the power hes making. We don't have the fuel rail pressure nor do we have duty cycle so those are 2 unknowns.

But seeing as the Yaris was never engineered to have 350+ hp id be willing to be the fuel lines from the tank to the engine are to small.
Garm what are you running for fuel lines? 8an?

Im not trying to bash xbgod on his build to each their own poison but running that dangerously lean and nitrous will result in a nitrous backfire which will blow your intake off the car.
If the fuel issues get fixed and you run nitrous please do not go over a 50 shot with this small of a motor or you'l get to meet mr puddles and blow your intake up and probably wreck your turbo. Trust me with this I have nitrous on another car and I've run a 150 shot there is nothing scarier than watching your fuel pressure drop from 39 psi to 24 psi for a microsecond and jump back up.

Nexus1155 · 01-14-2011, 11:16 PM

Quote:

Hey man, don't worry about the critical posts.

Blown, I know you are knowledgeable, surely you must see the drop off in power and then a sudden lean condition. You see no problem with that?RPM still increased. he didn't let off the gas.

01-13-2011, 07:20 PM	#3
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	#4
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	#5
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

01-14-2011, 04:59 PM	#14
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.

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01-13-2011, 05:48 PM	#2
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	#6
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	#8
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	#9
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	#11
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, 05:05 PM	#12
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.

01-14-2011, 06:28 PM	#13
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Im pretty sure the power is giving up so early because the turbo is to small for the amount of power hes making. You can see it in the torque curve how it starts to die at 5k rpm's. Dont know the specs on his cam or the rpm range of the intake he's running but Id have to hazard a guess and say both are rated for something like 3-7.3k rpms but the turbo doesn't have the cfm to keep up. If you look at the compressor map for the disco potato it gives up on at about 35 lb per minute with 2.2 bar. Rule of thumb is 10 hp per every lb per minute so easy math says 350 hp give or take 20 hp.

01-14-2011, 10:31 PM	#17
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Its a walboro 255 so it should be good for the power the injectors are 60lb which are again probably good for the power hes making. We don't have the fuel rail pressure nor do we have duty cycle so those are 2 unknowns. But seeing as the Yaris was never engineered to have 350+ hp id be willing to be the fuel lines from the tank to the engine are to small. Garm what are you running for fuel lines? 8an? Im not trying to bash xbgod on his build to each their own poison but running that dangerously lean and nitrous will result in a nitrous backfire which will blow your intake off the car. If the fuel issues get fixed and you run nitrous please do not go over a 50 shot with this small of a motor or you'l get to meet mr puddles and blow your intake up and probably wreck your turbo. Trust me with this I have nitrous on another car and I've run a 150 shot there is nothing scarier than watching your fuel pressure drop from 39 psi to 24 psi for a microsecond and jump back up.