Porting wastegates?
I need to port my waste gates really bad! i have a mid-pipe and i can get 15PSI no problem. and im scared to death of gettin detonation. but i have no idea how to port them... do i have to take the turbos off, ect? what do i do to go about this? thanks a ton!
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Yes, you have to remove your turbos to do this.
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would a boost controller be able to control the boost? i have read that it can, but people still get their wastegates ported. i am just trying to get a straight answer.
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Originally posted by striker would a boost controller be able to control the boost? i have read that it can, but people still get their wastegates ported. i am just trying to get a straight answer. |
boost controller wont be able to handle it. i don't know where you read that but from everything on this forum says if you go w/ mp you need porte the wategate and you also need to upgrade/replace your stock ecu.
easiest thing if you do not want to port the wastegate & upgrade ecu is put the main cat back on or get a high flow cat. 15lbs is way too much. You WILL get det. there are MANY threads on this issue just do a few searches. |
im running a mid pipe and I boost just fine... I get 12 -13 psi.. I do have a PFC set to .90(which is the stock settings)
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Originally posted by Flipn im running a mid pipe and I boost just fine... I get 12 -13 psi.. I do have a PFC set to .90(which is the stock settings) there are other sides to an equation and in this case if you search the threads on this forum you will see strong support to port and upgrade ecu. If your running 15psi it obvious your running too high. even 13psi is too much. i think the safest is running 10psi w/ stock fuel setting other wise you may run lean. ehh, but what do i care its not my car. |
The WG is attached to the turbos. You have to remove it so there is no worry of getting shavings in your turbines.
I can't find any pics on the actual procedure, but I know that if you over bore the inner hole, you have ruined the WG. Raj |
all you need is a dual solenoid boost controller which can operate the wastegate faster+moreaccurately
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but how do you know how much you are suppose to shave off the WG's?
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The easiest thing is a restrictor plate. I use it and I can control boost easily with my ProfecB. No need for porting - but I do loose some power this way. Hell... loose some, gain some ;)
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get a profec-b. i agree with 93blackfd you should have one anyway and 90% of the time it will controll it
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ProfecB on its own cant control boost CREEP. It can open wastegate fully but the airflow can still be too big and thus causing boost creep (e.g. non-controllably rising boost)
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Originally posted by cruiser ProfecB on its own cant control boost CREEP. It can open wastegate fully but the airflow can still be too big and thus causing boost creep (e.g. non-controllably rising boost) YES, AGREED |
I guess the only thing to do is go single so you can get a bigger external wastegate....hehe
Marc |
Originally posted by 93BlackFD all you need is a dual solenoid boost controller which can operate the wastegate faster+moreaccurately |
i have my wastegate ported, running the midpipe. I have ABSOLUTELY NO boost creep even on cold nights in florida (50F). I am planning to throw on the profec b, just so i can run an intake. it always stays at .9bar
ALI |
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Oopps
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Oops #2
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the assumption is that the wastegate is being opened all the way by the ecu and not able to flow enough.
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Will porting the wg give that external wg sound abit?
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Originally posted by Ripzta Will porting the wg give that external wg sound abit? |
dang i though i m the only one stayin up dat late :)..gotta love work overnight.. wat happen if wg open up to much?...
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What about a Pop-Off-Valve?
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Pop-off ?
Do you mean blow-off ? |
He means pop-off.
This is ok when used strictly as a backup, but not to control boost; such as if you had a wastegate failure. |
Wtf is a pop-off valve ? What is its function and how does it work ?
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I've heard porting the wastegate, for it will make the houseing weaker and more prone to cracking. Just a thought. Like 93Black said above, do the dual manaul boost controler deal and youll be fine.( also not running stock ecu)
One thing I have learned from people working on these cars that haven't dont alot of work before, is they dont hook up the boost controler correctly. This will cause spike, creep w/e. So make sure you know what you are doing or have someone there to help you with this problem. Also this topic has come up many many times. Take a good 2 hours of your time and read every damn thread about this topic and I bet you'll solve your problem. |
Originally posted by cruiser Wtf is a pop-off valve ? What is its function and how does it work ? As usual, see: http://www.scuderiaciriani.com/rx7/turbos.html#BLO Again, not to be used to control boost. Just as a safety net. |
Ahh... IC. Thx ;)
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