 Overboosting!!! Help |
 Nov 25 2006, 07:39 PM
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Person of Wisdom  Group: Members Posts: 173 Joined: 22-December 04 From: Bloomington Member No.: 399  |
14b (ported exhaust -- meaning where the turbo bolts to the manifold) It boosted up to 10lbs then holds but at 4000 to 4500 RPM at WOT the damn thing boost up to 20 to 23 lbs. OK the AVCR is not the problem. I have the line connected from the nipple on the jpipe to the wastegate. Yes I did a boost leak test and fixed all the leaks and the wastegate rod moves about 1/2in at about 13 lbs. With turbo on the car and the O2housing on the turbo. Took the turbo off and everthing looks fine. I am using a 2g 02 housing as well. My exhaust setup is a 3in downpipe to a 3/ 1/2 test pipe to the 4 in oulet. Also the exhaust side of the turbo has a white powder or film on it. Thought it maybe coolant leak Ran alittle bit of air thur the water lines and it does not leak air into the exhaust side. Any help would be great. Clutch is still giving me some problems but on thing at a time.
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Nov 26 2006, 12:54 AM
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
Porting out the wastegate and installing a larger flapper would fix the creep.
_Spy_ |
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Posts in this topic
97TalonTSI Overboosting!!! Help Nov 25 2006, 07:39 PM
turbohcar Sounds to me like boost creep. Not sure as to how... Nov 25 2006, 10:34 PM 97TalonTSI I am getting 10lbs of boost creep? Nov 26 2006, 01:20 AM turbohcar When I last had the Talon running, I had it direct... Nov 26 2006, 09:25 AM AWD DSM 1 I've still got the exhaust housing that kicks ... Nov 26 2006, 10:14 AM Mitsu 77 QUOTE (turbohcar @ Nov 25 2006, 11:34 PM)Soun... Nov 26 2006, 10:26 AM SCCA Stang with my old MBC I had about 5 psi of creep... with... Nov 26 2006, 03:07 PM scrapin_frame my evo3 doesnt creep.. it just snaps to 22psi righ... Nov 26 2006, 03:28 PM Kazz5 I was going to mention the MBC - if it disassemble... Nov 26 2006, 04:15 PM 97TalonTSI I do not have a MBC. I am using a AVCR. But righ... Nov 26 2006, 06:01 PM turbohcar QUOTE (97TalonTSI @ Nov 26 2006, 06:01 PM)I d... Nov 26 2006, 06:12 PM 97TalonTSI JACK POT!!! I just have never heard o... Nov 26 2006, 09:56 PM scrapin_frame there is always the expensive solution... external... Nov 27 2006, 05:01 AM natedogg QUOTE I'd use a hand pump to check your actuat... Nov 27 2006, 08:31 AM 97TalonTSI I did check the actuator. Also this is a diferent... Nov 27 2006, 09:26 AM natedogg Ahh, missed the part in your original post about t... Nov 27 2006, 10:49 AM black92_tsi_awd QUOTE (97TalonTSI @ Nov 27 2006, 09:26 AM)I d... Nov 27 2006, 12:14 PM turbohcar I try to read everything Nov 27 2006, 02:05 PM 97TalonTSI I hear ya! I will let you guys know the statu... Nov 27 2006, 03:34 PM turbohcar As said before, a bigger exhaust side OR an extern... Nov 27 2006, 04:31 PM natedogg An external would fix the problem but it might be ... Nov 28 2006, 08:22 AM
AWD DSM 1 QUOTE (natedogg @ Nov 28 2006, 08:22 AM)I... Nov 28 2006, 09:32 AM |
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