Damo21 Member 38 Member For: 15y 2m 5d Gender: Male Location: Bunbury, West Oz Posted 04/09/11 08:21 AM Share Posted 04/09/11 08:21 AM Hey everyone I'm having a problem with my boost. I wanna run 16 psi but the boost is hitting 20 psi. I have rapid systems v3 intercooler kit, gt35 with .70 ar comp, 4 inch intake, 4 inch dump pipe to 3.5 inch single system, 40mm external waste gate, 60lb injectors, 044 and surge tank, sx fuel reg and rail and valve springs. No matter what we do we can't get boostdown under 20 psi. Just wondering if anyone had any ideas? Any help would be appreciated thanks Link to comment Share on other sites More sharing options...
bossmang FREAKY Donating Members 12,403 Member For: 14y 3m 29d Gender: Male Location: Melbourne Posted 04/09/11 08:49 AM Share Posted 04/09/11 08:49 AM actuator?whos tuning? Link to comment Share on other sites More sharing options...
Pazzo Donating Members 11,132 Member For: 13y 6m 2d Gender: Male Posted 04/09/11 08:58 AM Share Posted 04/09/11 08:58 AM Is the wastegate ported? Link to comment Share on other sites More sharing options...
Damo21 Member 38 Member For: 15y 2m 5d Gender: Male Location: Bunbury, West Oz Posted 04/09/11 09:38 AM Author Share Posted 04/09/11 09:38 AM ITs externally waste gated. Because we has trouble with ported exhaust housing we ran external gate and still having problems. Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 13y 3m 4d Posted 04/09/11 10:18 AM Share Posted 04/09/11 10:18 AM Could try more restrictive cat to help bring boost down Link to comment Share on other sites More sharing options...
Damo21 Member 38 Member For: 15y 2m 5d Gender: Male Location: Bunbury, West Oz Posted 04/09/11 10:23 AM Author Share Posted 04/09/11 10:23 AM What could be causing the problem to begin with? Can't I fix it by keeping everythin the same? Link to comment Share on other sites More sharing options...
Damo21 Member 38 Member For: 15y 2m 5d Gender: Male Location: Bunbury, West Oz Posted 04/09/11 10:50 AM Author Share Posted 04/09/11 10:50 AM What if I run another external waste gate? Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 13y 3m 4d Posted 04/09/11 12:05 PM Share Posted 04/09/11 12:05 PM Could be your preload on your wastegate 1 Link to comment Share on other sites More sharing options...
Damo21 Member 38 Member For: 15y 2m 5d Gender: Male Location: Bunbury, West Oz Posted 04/09/11 12:17 PM Author Share Posted 04/09/11 12:17 PM I have tried different Tensioned springs and still no difference :( Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 16y 5m 28d Gender: Male Location: Perth Posted 04/09/11 03:10 PM Share Posted 04/09/11 03:10 PM Hey everyone I'm having a problem with my boost. I wanna run 16 psi but the boost is hitting 20 psi. I have rapid systems v3 intercooler kit, gt35 with .70 ar comp, 4 inch intake, 4 inch dump pipe to 3.5 inch single system, 40mm external waste gate, 60lb injectors, 044 and surge tank, sx fuel reg and rail and valve springs. No matter what we do we can't get boostdown under 20 psi. Just wondering if anyone had any ideas? Any help would be appreciated thanks Sound like you have all the good gear. Either take it to a tuner and get them to sort the overboost or fit a nizpro overboost valve and bleed off the extra 4 pounds. Who is tuning your car. Link to comment Share on other sites More sharing options...
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