Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > Forced Induction Forum
  The Tire Rack

Reply
 
Thread Tools Display Modes
Old 07-22-2011, 12:29 AM   #1
Bluevitz-rs
1NZ-6spd
 
Bluevitz-rs's Avatar
 
Drives: '05 6-Spd Vitz RS
Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
Put it on a dyno and look for the leak
Bluevitz-rs is offline   Reply With Quote
Old 07-22-2011, 12:30 AM   #2
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
^ Lmao... That was the first thing I thought of as soon as I hit the post button. It's actually a pretty solid idea.
Focus_Sh1ft is offline   Reply With Quote
Old 10-03-2011, 02:00 PM   #3
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
Focus_Sh1ft is offline   Reply With Quote
Old 10-03-2011, 02:26 PM   #4
Brian
 
Brian's Avatar
 
Drives: '07 Yaris turbo, '11 Juke
Join Date: Mar 2007
Location: Riverside, CA
Posts: 849
What happened to your downpipe? Did it break? It almost looks like it was cut.
Brian is offline   Reply With Quote
Old 10-03-2011, 04:31 PM   #5
Bluevitz-rs
1NZ-6spd
 
Bluevitz-rs's Avatar
 
Drives: '05 6-Spd Vitz RS
Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
Looks like the weld let go.
Bluevitz-rs is offline   Reply With Quote
Old 10-03-2011, 07:27 PM   #6
Yoda
 
Yoda's Avatar
 
Drives: 2008 Black Sedan
Join Date: Oct 2008
Location: FL
Posts: 966
Yup that happened to mine and that's when I went open downpipe. It was for me all the vibrations and the degree of the bend I had. Over time it broke.
Yoda is offline   Reply With Quote
Old 10-03-2011, 07:48 PM   #7
Bluevitz-rs
1NZ-6spd
 
Bluevitz-rs's Avatar
 
Drives: '05 6-Spd Vitz RS
Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
The weld doesn't look like it had any penetration. Was this one a custom down pipe or is it part of the zage kit?
Bluevitz-rs is offline   Reply With Quote
Old 10-04-2011, 02:25 AM   #8
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
It broke at the weld - that's why it looks like a perfect cut. Pretty annoying

Anyhoo, planning on doing some professional tuning next week. I do still suspect a vacuum leak and would also like to do ignition timing.

Otherwise I'm trying to figure out where to go from here. I'm never going to raise the boost as I need this car to be somewhat reliable. Currently I'm thinking of actually switching to a top mount intercooler(+functional hood scoop) and maybe adding meth injection with like 75% water and 25% meth (since meth is just eh with only 8ish psi).
Focus_Sh1ft is offline   Reply With Quote
Old 10-09-2011, 07:37 PM   #9
pimp my yaris
C'est la vie
 
pimp my yaris's Avatar
 
Drives: 2009 2 door hatchback
Join Date: Aug 2009
Location: chicago
Posts: 482
This down pipe is definitley repairable. You need to install a stainless mesh flex joint and have it welded in at a exhaust shop. I had one installed on my custom downpipe and never had a problem. Check the bottom of page six on my thread and there is a picture of the one I used. U can make a pressure tester to check 4boost leaks. My friend made one for his 932 hp e85 supra and found 4 boost leaks. Now he has much more torque and less lag. He used a piece of silicon hose attached to the turbo inlet that had a round piece of aluminum to block off the end. Then he installed a 3/8 air hose quick connect fitting by threading it into the aluminum block off plate. Then he used a compressor with a regulator set to 5 psi and charged the intake with the engine off. He then just listened for all the spots where the air leaked out. He could not believe all the leaks he found. He is running 32 psi of boost now with no leaks. He also said all the hose clamps with a T-bolt were leaking. Now he installed screw type hose clamps and they are holding good. Hope this helps.
pimp my yaris is offline   Reply With Quote
Old 10-09-2011, 07:48 PM   #10
A-Dingo-Ate-My-Baby
Banned
 
Drives: yaris
Join Date: Jan 2011
Location: earth
Posts: 364
worlds worst welding job

Last edited by A-Dingo-Ate-My-Baby; 11-13-2011 at 12:53 AM.
A-Dingo-Ate-My-Baby is offline   Reply With Quote
Old 10-09-2011, 07:59 PM   #11
pimp my yaris
C'est la vie
 
pimp my yaris's Avatar
 
Drives: 2009 2 door hatchback
Join Date: Aug 2009
Location: chicago
Posts: 482
On a second look U may need to have it rewelded at the crack because its on the bend. And have the flex joint installed on the strait portion of the pipe. U can buy flex joints that are only 3-4 inches long.
pimp my yaris is offline   Reply With Quote
Old 10-09-2011, 11:17 PM   #12
Yoda
 
Yoda's Avatar
 
Drives: 2008 Black Sedan
Join Date: Oct 2008
Location: FL
Posts: 966
Weld it right back at the spot and the weld in some support bars. It wont break after that.
Yoda is offline   Reply With Quote
Old 10-10-2011, 03:42 AM   #13
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
Thanks guys. I literally had it repaired an hour after I posted that up lol. Obviously it's going to be a temporary solution, and I'm especially worried about that other weld joint. Definitely liking the mesh flex joint though. Next time it breaks I'll have one added.

If I had a compressor I would definitely do leak testing... Anyone know of a place that rents em out? Otherwise, I'll just have a tuner look for leaks while we're tuning.
Focus_Sh1ft is offline   Reply With Quote
Old 10-10-2011, 12:43 PM   #14
ilikerice
 
ilikerice's Avatar
 
Drives: 2010 black yaris
Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
A compressor is a wonderful thing to invest in. I bought mine from Harbor Frieght about 6 years ago and is still compressing 235psi weekly. If you are able to get a hold of a compressor check this thread out to make your own 5 dollar boost leak tester:

http://www.dsmtuners.com/forums/arti...your-to4e.html

DSM guys are awesome when it comes to help with turbo's for cheap. I made something like this for my crx. easy to use, easy to make
__________________
-Derrick-
"Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting."
ilikerice is offline   Reply With Quote
Old 11-12-2011, 11:30 PM   #15
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
So last week I took the turbo out to check for shaft play since it's been in now for a little over a year. Also had to remove a broken stem from where the downpipe mounts up. Been putting this off for awhile because taking the turbo off this car is such a god damn burden lol.

Anyway, shaft play is just dandy which I was glad to see. I've also made some progress on my ongoing boost leak battle. I believe the problem is on the exhaust side - specifically where the manifold mounts up to the block. That broken stem wasn't exactly helping either. AND it turns out when I originally reclocked the turbo I had stretched the actuator and thus put preload on the spring (oops :p). When I get time I need to check it out more.
Focus_Sh1ft is offline   Reply With Quote
Old 11-13-2011, 09:23 AM   #16
pimp my yaris
C'est la vie
 
pimp my yaris's Avatar
 
Drives: 2009 2 door hatchback
Join Date: Aug 2009
Location: chicago
Posts: 482
Exhaust leaks suck. I have had my share.
pimp my yaris is offline   Reply With Quote
Old 11-26-2011, 12:32 AM   #17
Focus_Sh1ft
 
Focus_Sh1ft's Avatar
 
Drives: 08 Yaris Turbo; 06 tC Turbo
Join Date: Jan 2010
Location: New Jersey
Posts: 875
More problems...

I'm misfiring BADLY. Literally if I even get on the throttle moderately it completely misses and almost stalls. I can't even build past like 1.5 psi of boost (even if I accelerate slowly...). Gas quality wasn't the problem so hopefully it's something plug related. The plugs are less than 10k miles old so I can't imagine they would already be fouled. No diagnostic codes either.
Focus_Sh1ft is offline   Reply With Quote
Old 11-26-2011, 01:10 PM   #18
cali yaris
ULTIMATE
 
cali yaris's Avatar
 
Drives: 07 Yaris Turbo
Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
Send a message via AIM to cali yaris
Check the coils too.
__________________
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.
cali yaris is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
NEWS: TOYOTA REVEALS ALL-NEW YARIS SEDAN AT 2006 LOS ANGELES AUTO SHOW VitzBoy General Yaris / Vitz Discussion 7 09-20-2023 08:50 AM
Turbo kits!! djgab101 Forced Induction Forum 26 03-09-2015 04:24 PM
2007 Yaris Pricing Info ! YarisBueller New YARIS Purchase Forum 104 06-24-2009 05:54 PM
Turbo kit Brainstorming Gideon Forced Induction Forum 16 04-19-2009 01:54 AM


All times are GMT -4. The time now is 01:08 PM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.