|
11-18-2008, 04:28 PM | #19 |
wish i could run this but i'm planning on turboing later
|
|
11-18-2008, 04:31 PM | #20 | |
Drives: 08 Scion xD Join Date: Nov 2008
Location: Washington State
Posts: 10
|
Quote:
|
|
11-18-2008, 06:06 PM | #21 |
Your mom goes to college
Drives: 08 Vitz Join Date: Oct 2008
Location: Just chillin' out brah !
Posts: 1,434
|
So this will be sold with a mid-pipe that will bolt up to aftermarket or stock axle-backs right ? Is there any dyno pulls with a yaris running the long tube header , mid-pipe , and the intake manifold ???? Would a yaris be able to lay down 130+ to the wheels with , only bolt-ons Ie : long tube header, Midpipe, intake , intake manifold , nst pulleys , and axle back muffler?
|
11-18-2008, 06:14 PM | #22 | |
Who said Yaris was slow?
|
Quote:
answered here: http://www.yarisworld.com/forums/showthread.php?t=10840 |
|
11-18-2008, 07:05 PM | #23 |
Drives: Yaris YRS Sedan Join Date: Sep 2006
Location: Sydney, Australia
Posts: 65
|
Richard..... the position of the O2 sensor is only on one exhaust pipe rather than at the join.
This will mean the o2 sensor will see lower readings and will run the engine rich...... Running rich may give the impression of more power/performance. |
11-18-2008, 07:33 PM | #24 |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
|
The oxygen sensor positon has no effect on the air/fuel ratio. You can run the sensor stuck in the end of the exhaust or in one individual tube, as long as each cylinder is runing the same-the readings will be identical. Not sure what you mean by lower readings or giving the impression of more power or performance. The dyno does not read impressions-it reads real numbers generated by the motor.
|
11-18-2008, 07:39 PM | #25 |
Drives: Yaris YRS Sedan Join Date: Sep 2006
Location: Sydney, Australia
Posts: 65
|
Thanks Richard.
I was thinking the same, that the Air/Fuel ratio should read the same regardless of position. Sorry about me writing "Impression", I meant running rich WILL give more power/performance. That old resistor across the o2 sensor trick. I'm with you now. |
11-18-2008, 10:27 PM | #26 |
So....will this be available in 304 SS, or just the mild steel?
|
|
11-18-2008, 11:26 PM | #27 | |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
|
Quote:
__________________
The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ... |
|
11-18-2008, 11:42 PM | #28 | |
Who said Yaris was slow?
|
Quote:
|
|
11-19-2008, 12:12 AM | #29 |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
|
people get confused when they read rich or lean ads power. Optimum power comes from an optimum air/fuel mixture. This is usually 13.2:1 in an NA application and richer on forced induction applications-though a turbo motor very well at 13.2:1 air/fuel-just not for very long.
|
11-19-2008, 02:05 AM | #30 |
Touge Driver
|
sorry to ask a dumb question...
but does that mean u can run this long header + bolt on muffler, no mid pipe? |
11-19-2008, 05:32 AM | #31 |
Metsu
Drives: NCP91 ; E36 Join Date: Oct 2008
Location: Calgary
Posts: 154
|
damn this is sweet. 550 for head and mid sounds pretty good. I am concerned about the mild steel though. Being in Canada, wouldn't rust be a greater issue for me? In terms of power gains, so far you look the best. How much louder is the vehicle with this set up? Any chance for a sound clip?
__________________
|
11-19-2008, 11:49 AM | #32 | |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
|
It was real loud durign testing since we ran an open exhuast. Haven't run the system through a mid-pipe connected to axle back yet-we need to make sure there is sufficent interest before we make the production pieces. Sounded pretty cool at 6000 rpm!
Quote:
|
|
11-19-2008, 12:25 PM | #33 |
rarer than JDM -1 of 1!
|
Interested, but like others, fundage is tight right now. I may be able to commit sometime after december. Maybe january?
|
11-19-2008, 01:20 PM | #34 |
Drives: 2008 Black Sedan Join Date: Oct 2008
Location: FL
Posts: 966
|
does any1 one see that it is spit at the top. Never seen that on a header before. Was it a mistake or did it crack?
|
11-19-2008, 01:24 PM | #35 |
SIPNDEW
|
i believe its for flexability. when the metal flange heats up if theres not a split it can warp and/or crack. its good to have a joint in there to allow expansion.
|
11-19-2008, 01:35 PM | #36 |
Drives: 2008 Yaris hatch Join Date: Oct 2008
Location: Las vegas, NV
Posts: 183
|
The split in the head flange was necessary to faciliate installation of the prototype. The header can't be installed if is is made as a full-length, 1-piece header. It will be a 2-piece design, but the production head flange will be 1 piece. The header will split mid-way down the primary tube-they will connect using a 4-bolt flange.
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Long Tube Header | kou | Performance Modifications | 2 | 11-18-2008 01:15 AM |
dyno results are in!!!! | turboyaris | Performance Modifications | 105 | 04-01-2007 06:03 PM |
WR INTAKE SYSTEM : YOU GET $100 FOR DYNO RESULTS ! | WRLEO | Sponsors Classifieds Area | 0 | 02-22-2007 10:14 AM |
Megan Header Dyno Results | ChinoCharles | Performance Modifications | 83 | 02-21-2007 10:06 PM |