Stock vs 123 Wheel HP (All-Motor) Dyno Graph - Page 2 - Toyota Yaris Forums

blacksandiegovitz · 11-18-2008, 07:23 PM

Quote:

Originally Posted by PETERPOOP

almost shipping time

OHHHHH Yes !

whooppee777 · 11-18-2008, 09:04 PM

Quote:

Originally Posted by CASTREX

Hey, for anyone wondering how the Yaris long tube header looks....

Here you go! Richard just sent me the picture...

i'm confused. this will replace the mid pipe as well? would there really be a difference in power between this and say...the weapon R header that i have?

richardholdener · 11-18-2008, 09:08 PM

Th header you have is a replacement for the stock header-it (like the stock exhaust manifold) is too short to provide any scavenging effect. It is the scavenging effect that improves power, not simply additional flow.Basically the header must be tuned for the application. It can either fit in place of the stock exhaust manifodl or be tuned to improve the power-but not both. The long-tube header does require a different mid pipe which will be sold with the header.

Quote:

Originally Posted by whooppee777

i'm confused. this will replace the mid pipe as well? would there really be a difference in power between this and say...the weapon R header that i have?

bdc87 · 11-18-2008, 09:44 PM

Now you need to take this to the track so we can get some 1/4mile and 60 times. 15.8?

justjesus · 11-18-2008, 10:17 PM

Too bad they closed Palmdale (LA County Raceway)

Quote:

Originally Posted by bdc87

Now you need to take this to the track so we can get some 1/4mile and 60 times. 15.8?

pinoypizzaboy · 11-18-2008, 10:22 PM

Quote:

Originally Posted by bdc87

Now you need to take this to the track so we can get some 1/4mile and 60 times. 15.8?

15.8 for a yaris thats crazzey. stock is like high 17s right?

PHXDEMON · 11-18-2008, 11:07 PM

I want one of those headers

blacksandiegovitz · 11-18-2008, 11:35 PM

Quote:

Originally Posted by PHXDEMON

I want one of those headers

If you really want one , please sign up for the long tube header Gb list. We only need 10 people...

CASTREX · 11-19-2008, 12:49 AM

Quote:

Originally Posted by pinoypizzaboy

15.8 for a yaris thats crazzey. stock is like high 17s right?

I pulled 15.85 on my Yaris with around 120 whp with some extra weight and heavy 17 rims. So that sounds about right.

richardholdener · 11-19-2008, 01:10 AM

How did you get 120 wheel hp from your yaris?

Quote:

Originally Posted by CASTREX

I pulled 15.85 on my Yaris with around 120 whp with some extra weight and heavy 17 rims. So that sounds about right.

pinoypizzaboy · 11-19-2008, 01:15 AM

Quote:

Originally Posted by richardholdener

How did you get 120 wheel hp from your yaris?

he has 1.8 motor I think but high 15s for a 1.5 yaris is fast right?

bzinn 1 · 11-19-2008, 01:33 AM

WOW.......great work building all the materials to work together as you have put them.That in its self is hard to do at times and a lot of trial and error.

Now I gotta start saving as this could make a fun improvement at the track.

richardholdener · 11-19-2008, 01:43 AM

That would explain it. As indicated by the supplied grpah, despite nearly the same peak power, the 1.8L in the Xd and yaris TS offers more average power and will therefore accelerate quicker assuming similar weight and gearing.

Quote:

Originally Posted by pinoypizzaboy

he has 1.8 motor I think but high 15s for a 1.5 yaris is fast right?

eTiMaGo · 11-19-2008, 01:45 AM

no replacement for displacement

bdc87 · 11-19-2008, 02:04 AM

I think stock 1.5L is 16.8. Remember reading this in R&T. It depends on the driver and variables but basic physics says 15.8-16 1/4 time.

dallas · 11-19-2008, 02:33 AM

Wow amazing gain for bolt on's, great work! What gear is the dyno run done in? I always thought that a tri Y header was better for scavenging and torque than a 4 into 1, yet this set up is impressive!

.

Quote:

Originally Posted by richardholdener

Th header you have is a replacement for the stock header-it (like the stock exhaust manifold) is too short to provide any scavenging effect. It is the scavenging effect that improves power, not simply additional flow.Basically the header must be tuned for the application. It can either fit in place of the stock exhaust manifodl or be tuned to improve the power-but not both. The long-tube header does require a different mid pipe which will be sold with the header.

dallas · 11-19-2008, 02:45 AM

Sorry I just found your great explanation of header types on the other thread!

whooppee777 · 11-19-2008, 03:49 PM

Quote:

Originally Posted by richardholdener

The long-tube header does require a different mid pipe which will be sold with the header.

that answers my question. thanks

11-18-2008, 09:44 PM	#22
bdc87 HISTORY REPEATED 11/04/08 View User's Garage Drives: 07' MM Vitz LB Join Date: Jun 2007 Location: Lake County, CA Posts: 355	Now you need to take this to the track so we can get some 1/4mile and 60 times. 15.8? __________________

11-19-2008, 01:45 AM	#32
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	no replacement for displacement __________________ 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...

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11-18-2008, 11:07 PM	#25
PHXDEMON View User's Garage Drives: 2007 Red Liftback Join Date: Oct 2008 Location: Phoenix, AZ Posts: 885	I want one of those headers

11-19-2008, 01:33 AM	#30
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11-19-2008, 02:04 AM	#33
bdc87 HISTORY REPEATED 11/04/08 View User's Garage Drives: 07' MM Vitz LB Join Date: Jun 2007 Location: Lake County, CA Posts: 355	I think stock 1.5L is 16.8. Remember reading this in R&T. It depends on the driver and variables but basic physics says 15.8-16 1/4 time.

11-19-2008, 02:45 AM	#35
dallas Drives: Yaris Hatch /Landrover D2 Join Date: Jun 2007 Location: Canada Posts: 242	Sorry I just found your great explanation of header types on the other thread!