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wastegate control

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Old Apr 23, 2003 | 11:25 AM
  #1  
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From: SC
wastegate control

ok...thinking about the non seq area...looked at a few diagrams and with the new info from Damian on the forum with bypassing the solenoids....

Here we go

Have a PFC ecu with this is mind if I go non seq: (please correct were I am wrong with my findings)

No solenoids necessary...the fpr can be bypassed directly to the LIM nipple.

Since I am going to be using the manual boost controller per Damian's fine post I will bypass the wastegate control solenoid...well actually remove both precontrol and wastegate solenoids.

Here is where I am kinda wondering....

There are two nipples (tee-hee) on the intake to the primary turbo. I have removed the pcv and installed an oil catch can fed from the oil filler neck nipple (tee-hee) therefore there is an unused nipple since it will not be used for pcv control.

I want to use the two nipples on the primary turbo for the oil metering pump and the bypassed wastegate solenoid nipple. This will allow me to discard the complete header with the little pipes. The wastegate nipple not attached to the manual boost controller will connect to the primary turbo intake nipple....it will be a very short run which is what damian mentioned was an advantage.

Does anyone see anything wrong with this?

thanks for your feedback....the only thing holding me back from doing the non seq is the lag...i have a full exhaust with m2 cai and m2 med smic wonderin' if this will make the lag "feel" negligable?
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Old Apr 23, 2003 | 11:46 AM
  #2  
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From: Lafayette, LA
Re: wastegate control

Originally posted by cover8
...the fpr can be bypassed directly to the LIM nipple.

Here is where I am kinda wondering....

There are two nipples (tee-hee) on the intake to the primary turbo. I have removed the pcv and installed an oil catch can fed from the oil filler neck nipple (tee-hee) therefore there is an unused nipple since it will not be used for pcv control.

I want to use the two nipples on the primary turbo for the oil metering pump and the bypassed wastegate solenoid nipple. This will allow me to discard the complete header with the little pipes. The wastegate nipple not attached to the manual boost controller will connect to the primary turbo intake nipple....it will be a very short run which is what damian mentioned was an advantage.


thanks for your feedback....the only thing holding me back from doing the non seq is the lag...i have a full exhaust with m2 cai and m2 med smic wonderin' if this will make the lag "feel" negligable?

From the top:

Yes the fpr can...some say it causes hard hot starts...haven't seen one yet 2k miles.


PCV - doesn't connect to the turbo inlet...if I'm understanding you correctly. The two nips on the inlet should be attached to the OMP lines and the metal pipe that goes on top of the motor then to the rubber hose that connects to the oil filler neck.

"This will allow me to discard the complete header with the little pipes" - don't understand...

With that exhaust and SMIC, lag will NOT be a concern.

I have a diagram I made for NS-conv, that keeps the air pump and stock WG solenoid...(I'll email it to you if you want, shoot me a PM) all you'll have to do is edit out the 2 solenoids for the AP and add in Damian's diagram of his WG control (and your catch can), and you should be set.
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Old Apr 23, 2003 | 12:02 PM
  #3  
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From: Dallas
Re: Re: wastegate control

Originally posted by dubulup

Yes the fpr can...some say it causes hard hot starts...haven't seen one yet 2k miles.
In my experience the car would start fine, but the idle quality was poor with the FPR solenoid bypassed.
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Old Apr 23, 2003 | 12:23 PM
  #4  
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From: Lafayette, LA
just add comment again...my car Idles great...750rpm (no load) 16 hg in
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Old Apr 23, 2003 | 01:43 PM
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From: SC
Thanks for the feedback...and not to be argumentative (yeah right!) but the pipes by the turbos appear to be a header system. A system that ultimately terminates to one of the nipples on the primary inlet. Once the wastegate solenoid is bypassed, the line simply connects the wastegate nipple to the primary turbo inlet nipple directly. Maybe I did not follow the lines correctly....

The pcv line connects to the UIM--following the line from the filler neck the other way will take you to a hard pipe...that is soldered to the oil line to the turbos. This hard line travels above the block to the turbo side where a hose connects to the primary turbo inlet nipple. I removed the connections to the oil filler neck on either end, capped of the horizontal nipple (tee-hee) and connected the downward pointing nipple to the catch can.
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Old Apr 23, 2003 | 02:52 PM
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From: Lafayette, LA
Originally posted by cover8
Thanks for the feedback...and not to be argumentative (yeah right!) but the pipes by the turbos appear to be a header system. A system that ultimately terminates to one of the nipples on the primary inlet. Once the wastegate solenoid is bypassed, the line simply connects the wastegate nipple to the primary turbo inlet nipple directly. Maybe I did not follow the lines correctly....

The pcv line connects to the UIM--following the line from the filler neck the other way will take you to a hard pipe...that is soldered to the oil line to the turbos. This hard line travels above the block to the turbo side where a hose connects to the primary turbo inlet nipple. I removed the connections to the oil filler neck on either end, capped of the horizontal nipple (tee-hee) and connected the downward pointing nipple to the catch can.

LIL' confused last post...I looked at Damian's set-up again.

Gotcha...totally correct about the pcv and header sys. I don't know what the line from the filler neck to the turbo inlet does, but it sounds like you have removed it. Any idea what that line is for?
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Old Apr 23, 2003 | 02:55 PM
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From: Lafayette, LA
Re: Re: wastegate control

Originally posted by cover8


This will allow me to discard the complete header with the little pipes
This statement I'm still confused about. I think one nipple will be connected to the HALLMAN's thingy and then you can cap the other.

??????????am I still in the dark?????????
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Old Apr 23, 2003 | 03:07 PM
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From: SC
Negative....the Hallman device connects the same as the home depot valve does/did...the Damian method removes the rpm driven pre-control/wastegate control by bypassing the solenoids that mount to the UIM. On the wastegate control there are two nipples...using the push/pull principle--pressure/vac anyways...one wastegate nipple connects directly to the primary turbo inlet nipple while the other wastegate nipple goes to the manual boost controller.

For the PCV the lines provide a way for the oil system to "vent" on later version FDs the line to the UIM was removed keeping the line to the primary..unfortunately during hard cornering, you can get oil to come out of the filler neck to the lines getting into your turbines and intercooler. I simply removed any connection and vented to a catch can with a stopcock.
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