Ebay O2 = Boost Creep * Help
May 15, 2006, 07:20 AM
#16
Evolved Member
iTrader: (16)
Join Date: Mar 2005
Location: CT
Posts: 1,338
Likes: 0
Received 0 Likes
on
0 Posts
I had the ebay piece and ported out the wastegate hole pretty good and would still see creep from 16-18psi. I ended up removing it in part due to this problem. Im planning on going with the Invidia unit.
May 15, 2006, 07:27 AM
#17
Evolving Member
iTrader: (4)
Join Date: Jun 2003
Location: Derwood, MD
Posts: 474
Likes: 0
Received 0 Likes
on
0 Posts
my friend had his 'o3 tuned by shiv a couple weeks ago and he had the same issue w/an o2 housing. shiv recommended a mbc to address the problem. he has a xflash by the way.
Last edited by puckadog; May 15, 2006 at 07:30 AM.
May 15, 2006, 07:34 AM
#18
Evolved Member
iTrader: (25)
Join Date: Nov 2004
Location: PA
Posts: 2,247
Likes: 0
Received 0 Likes
on
0 Posts
Anyone with a 10.5, an ebay O2 housing, and a good MBC that has no problems? I have a 10.5 and a Hallman sitting in boxes in my room and a Buschur O2 housing on the way and want to be certain I won't have serious problems before the installation. Also, in addition to some power, doesnt the housing add a good bit of torque and decrease turbo lag noticeably? A friend of mine has the housing and the ported/coated exhaust mani and that thing feels naturally aspirated practically. Just saying there are benefits to the O2 housing besides just power gains.
May 15, 2006, 09:33 AM
#19
Originally Posted by fsugatorbait
I had the ebay piece and ported out the wastegate hole pretty good and would still see creep from 16-18psi. I ended up removing it in part due to this problem. Im planning on going with the Invidia unit.
May 15, 2006, 09:38 AM
#21
Honestly there is no difference in spool or torque. Even with the stocker I had nearly instant spool that hit very hard even with the 10.5HS. Besides you aren't going to feel 10HP on a 300WHP car.
I seriously doubt this piece did anything except add boost creep.
Buschur did one test and picked up 13HP but it was because boost went up 1PSI. Well if one PSI = 11HP then that O2 housing really isn't all that they say it is especially since we dont run the boost that Dave does. For the average guy that runs 21/21PSI on pump this O2 isn't gonna make a bit of difference. If you think it will feel free to buy mine!
I seriously doubt this piece did anything except add boost creep.
Buschur did one test and picked up 13HP but it was because boost went up 1PSI. Well if one PSI = 11HP then that O2 housing really isn't all that they say it is especially since we dont run the boost that Dave does. For the average guy that runs 21/21PSI on pump this O2 isn't gonna make a bit of difference. If you think it will feel free to buy mine!
May 15, 2006, 09:44 AM
#22
Evolved Member
iTrader: (25)
Join Date: Nov 2004
Location: PA
Posts: 2,247
Likes: 0
Received 0 Likes
on
0 Posts
Well I already have one on the way for $125 shipped so that isn't too bad. I am going to run 22 or 23 psi though as 93 and 94 octane is pleantiful in PA, not 21. I read that lag is noticeably worse when switching from the 9.8 to 10.5 hotside so I thought why not replace the stock O2 housing while I have everything ripped apart. I have also read of many people with these units and a Hallman or Forge MBC having no issues whatsoever. This combined with the ported 10.5 and exhaust manifold yielded full boost for my friend about 400-500 rpm sooner. And I have ridden in his car and it feels way better than mine. For me, the 125 bucks is worth that increased spool up.
May 15, 2006, 10:23 AM
#26
Evolved Member
iTrader: (16)
Join Date: Mar 2005
Location: CT
Posts: 1,338
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by EVIL_EVO_VIII
You have to much preload on the wga, thats the problem, its not the o2 housing. I had the same issue and its fixed
Wow. I guess the o2 housing changes the dynamics enough so that the preload tolerances need to be recalibrated. Interesting and good call.
May 15, 2006, 10:32 AM
#27
Originally Posted by jrsimon27
evil evo why dont you lower the boost from your xede map??
Originally Posted by EVIL_EVO_VIII
You have to much preload on the wga, thats the problem, its not the o2 housing. I had the same issue and its fixed
Also this would have been the case on the factory O2 as well.
Here's the deal man, prior to this O2 housing I dyno'd at 320WHP/311WTQ on a mustang dyno and that was with the factory O2 and 17PSI at peak HP. The car was running perfect.
After switching to the tubular O2 my boost table was completely messed up. The car spiked higher and even began to have boost creep. IF the tubular was higher flow then it definately shouldn't be creeping. Odds are these issues were cause by a device that hurt flow more than it helped it.
After searching this forum for nearly 3 hours this morning I've found that numberous people have the boost creep issue but many of them are running alchy so they dont care what the boost climbs to. Others simply live with the problem getting knock in higher gears/loads. I just want my car back to a controlled/tuned vehicle. This fricken O2 has caused inconsistant boost depending upon the RPM that you lay into it as well as high load issues on many different cars.
May 15, 2006, 10:57 AM
#28
Evolved Member
iTrader: (23)
Join Date: Jun 2004
Location: Wisconsin
Posts: 1,503
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by EVIL_EV0
After switching to the tubular O2 my boost table was completely messed up. The car spiked higher and even began to have boost creep. IF the tubular was higher flow then it definately shouldn't be creeping. Odds are these issues were cause by a device that hurt flow more than it helped it.
-Paul
May 15, 2006, 11:31 AM
#29
Originally Posted by EVIL_EV0
Because than 1st through 3rd gear would be at 18PSI.
If this were the case the car would have creep in all gears not just 4th/5th.
Also this would have been the case on the factory O2 as well.
Here's the deal man, prior to this O2 housing I dyno'd at 320WHP/311WTQ on a mustang dyno and that was with the factory O2 and 17PSI at peak HP. The car was running perfect.
After switching to the tubular O2 my boost table was completely messed up. The car spiked higher and even began to have boost creep. IF the tubular was higher flow then it definately shouldn't be creeping. Odds are these issues were cause by a device that hurt flow more than it helped it.
After searching this forum for nearly 3 hours this morning I've found that numberous people have the boost creep issue but many of them are running alchy so they dont care what the boost climbs to. Others simply live with the problem getting knock in higher gears/loads. I just want my car back to a controlled/tuned vehicle. This fricken O2 has caused inconsistant boost depending upon the RPM that you lay into it as well as high load issues on many different cars.
If this were the case the car would have creep in all gears not just 4th/5th.
Also this would have been the case on the factory O2 as well.
Here's the deal man, prior to this O2 housing I dyno'd at 320WHP/311WTQ on a mustang dyno and that was with the factory O2 and 17PSI at peak HP. The car was running perfect.
After switching to the tubular O2 my boost table was completely messed up. The car spiked higher and even began to have boost creep. IF the tubular was higher flow then it definately shouldn't be creeping. Odds are these issues were cause by a device that hurt flow more than it helped it.
After searching this forum for nearly 3 hours this morning I've found that numberous people have the boost creep issue but many of them are running alchy so they dont care what the boost climbs to. Others simply live with the problem getting knock in higher gears/loads. I just want my car back to a controlled/tuned vehicle. This fricken O2 has caused inconsistant boost depending upon the RPM that you lay into it as well as high load issues on many different cars.