- Jun 4, 2006
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I guess most of the aftermarket wastegate have 38mm wastegate nowadays.... Unless u're using the olschool TIAL and HKS where 35mm still exist.need advice from all sifu,
my current setup. 1.6 sohc bolt on turbo
td05 14b boosting 1.1bar.planning boosting 1.5bar soon
i just complete custom a water / methanol injection kit to my car,it activate on 0.85 bar.would like to install wastegate b4 tune my car.
1 ) 35 or 38mm suit it?
2 ) after install wastegate can i put back rear muffler to original like inlet & outter 2 inch, will it have back pressure issue?want make it silent .lound when boost.:proud:
Regarding this issue, 2" is too small for turbocharged exhaust system. IMHO.
Boost spiking is due to the internal wastegate passage is too small where all the supposed to be dumped exhaust is channeled back to the turbine. This is boost spikes/creep. wastegate helps. Response wise.. Yes, it's better. Because the boost and dumping effect is reacted directly on the gate itself. Does not go through a actuation rod like actuator...Sifus> Did stainless steel piping for my gsr recently however i have changed 2 actuators so far as always overboost and performance also lagging. Foreman is advising me to upgrade to a 38mm wastegate, is that true or actuators are good enuf for this mod...Thanks