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#1 |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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The Yaris Performance Primer
There's a lot of information scattered out there on the hot topic of improving the performance of our little cars. So, I will try to summarize everything into this handy thread.
Before we start, please remember that performance does not always mean raw horsepower! Although there are certainly several ways to improve the engine's output, it is wise to play to the car's strengths (low weight and great handling). So, I will explore different options in several "stages", of increasing cost and complexity, as a guideline of sorts. Also, please always keep in mind the implications of modifying a car. One way or another, you will reduce the lifespan of the car, put more strain on stock components which may fail earlier than normal. So, follow this guide at your own risk. STAGE 1 Simple, inexpensive mods that will increase the fun factor of your ride.
STAGE 2 More "meaty" mods that will really start to give your car more punch on the track, while remaining affordable.
MORE POWER! At the time of writing, there are not a lot of reliable options available to us to increase the output of the engine itself. This is due mainly to an ECU that is notably hard to crack. So, a lot of the following information is still theoretical, or in prototype stages.
Other stuff not related to the power increasers mentioned above, but which will come in useful at this stage.
__________________
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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#2 |
![]() Drives: red yaris hb 2001 Join Date: Dec 2008
Location: venezuela
Posts: 16
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what can i change on my yaris i got a mk1 :D! but i cant find performance pieces for my model :<!
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#3 |
§†ęĄ¶‡Ћ-NCP96
Join Date: Oct 2008
Posts: 727
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Awesome information !
for brake pad's i'd recommend HAWK pads, they are top-notch track pads :) |
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#4 |
![]() ![]() Drives: white and red shiny things Join Date: Jan 2009
Location: Philippines
Posts: 140
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SS brake lines would also do wonders for improving feel and resisting fade. Goodridge makes them for the Yaris as well as Project U, Wedsport, Endless and APP according to my supplier here.
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#5 |
![]() ![]() Drives: Vios Join Date: Oct 2008
Location: Brunei
Posts: 82
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any review on dme and dc sports header if possible dyno figures? im planning to remove my cat, use a 2" resonator and 2" stainless steel piping
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#6 |
Banned
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anyone have hard numbers on dynos for all the headers or even some of them? I am running a thread and having a hard time finding those figures.
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#7 |
Riceman43
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Hey man.. i will have my Nitto midpipe and Dc header installed on Friday...Would be more than happy to let you take for a spin...I still need to take my backseat out though...
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#8 |
I've made a post!
Drives: 2008 Yaris HB Join Date: Mar 2010
Location: San Diego, Ca.
Posts: 1
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Ok, got rid of the muffler. Sounds pretty cool. Here is the issue though. Put a Spectre FIPK on and the damn thing would just not run. What am I doing wrong? Do I have to put a performance MAF sensor in or do I have to chip the thing as I can seem to find a way to re map the fuel system. Any help will be appreceiated, thanks.
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#9 |
![]() Drives: ordinary Yaris Join Date: May 2010
Location: Cyberjaya, Malaysia
Posts: 2
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Hi, I have a 2007 M/T yaris, the mod that have been done for now is just Open air filter, grounding wire, and iridium spark plugs..
I'm thinking to install a quick shifter for the next step but the underdrive pulley from NST always stuck in my mind.. can please anybody tell me which one worth more? |
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#10 | |
![]() Drives: Toyota Yaris 1.0 2006 Join Date: May 2010
Location: The Netherlands
Posts: 2
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Quote:
How did the grounding wire and sparkplugs improve your ride? |
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#11 |
![]() Drives: ordinary Yaris Join Date: May 2010
Location: Cyberjaya, Malaysia
Posts: 2
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is it possible to use 4 age cyl head on 1NZ-FE?
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#12 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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no
__________________
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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#13 |
Modded Moderator
Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007
Location: Wenatchee, WA
Posts: 3,670
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Another worthy mention is the 1ZZ throttle body swap.
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#14 |
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Thanks eTiMaGo! Best informative post on possible upgrades for my new (used 2008) Yaris.
What I'm having trouble finding is these upgrades in some sort of list/chart basted on cost along with how easy it is like in your post. I want to start modding my car with the cheapest and easiest first. I figure I'll add in some front strut bars because they are relatively cheap. That and I hate slowing down for off-ramps with 30mph turns. If I moved to a windy area I'd add in the rear sway bar. Sport tires when the economy ones needs replacing. Maybe some of the fanboy mods like using the fog light as an extra air intake for a semi-forced air into a HP drop in air filter. There's a good thread with pics for that here in YW, btw. |
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#15 |
![]() Drives: 2001 Toyota Vitz Rs Join Date: May 2009
Location: Malta
Posts: 19
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I've just ported and polished the cylinder head of my 2nz Vitz.. I haven't seen that much of a difference in the performance. Do i need to upgrade the injectors to have a better flow of petrol and do i need to change the throttle body?
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#16 |
![]() Drives: Yaris Sedan '08 Join Date: Sep 2009
Location: Trujillo, Peru
Posts: 15
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Hi, what about Iridium Spark Plugs? Let's say Denso IK-16, do you think put these sparks is good maybe for stage 1?
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#17 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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leinadeb, if you ported and polished and got no gain, you probably are restricting the airflow.
Are you monitoring your air/fuel ratio? That will tell you if you need more fuel or more air. What intake?
__________________
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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#18 |
I've made a post!
Drives: Yaris Join Date: May 2011
Location: Malta
Posts: 1
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I have a Yaris automatic 1300cc petrol. I would like to install a turbo kit what will be the price?
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