Dump valve delete mod??
#1
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Dump valve delete mod??
Is there any benifits of this mod i know you get the induction blow back sound and prob shortens the live of turbo but does it do any thing for performance??
#3
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I have found it beneficial on my 95 STI running TD05. Acceleration from gear change is much improved. If you are running an uprated STi panel filter rather than induction or front mount the noise is minimal.
On yours and mine MY06/7 STi Mike I don't know how much improvement you would see as the torque is already pulling like a train. Also I understand this mod is better suited to the TD type turbos, but I couldn't articulate the technical reasons why
On yours and mine MY06/7 STi Mike I don't know how much improvement you would see as the torque is already pulling like a train. Also I understand this mod is better suited to the TD type turbos, but I couldn't articulate the technical reasons why
#4
Reason is the TD series can take more punishment than the VF series. The back pressure does stress the turbine wheel and is nore likely to result in failure in a vf series turbo.
I dont really understand this statement
Does this mean you think that you are gaining torque by not running a dump valve?
Is it possible it could be a placebo effect? Sounds faster so it feels faster?
I dont really understand this statement
On yours and mine MY06/7 STi Mike I don't know how much improvement you would see as the torque is already pulling like a train.
Is it possible it could be a placebo effect? Sounds faster so it feels faster?
#6
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Reason is the TD series can take more punishment than the VF series. The back pressure does stress the turbine wheel and is nore likely to result in failure in a vf series turbo.
I dont really understand this statement
Does this mean you think that you are gaining torque by not running a dump valve?
Is it possible it could be a placebo effect? Sounds faster so it feels faster?
I dont really understand this statement
Does this mean you think that you are gaining torque by not running a dump valve?
Is it possible it could be a placebo effect? Sounds faster so it feels faster?
#7
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To correct a common SN myth: it is not true that all VF turbos are not amenable to running without a DV; with the older ones, it's not a good idea, but the more recent ones will tolerate it.
Also, if anything it improves the pick up after gear changes as, presumably, the boost pressure is not being dumped! I was advised to loose mine when I went to an FMIC to negate the slight delay in boost response that can occur between gear changes with this set up and I've not noticed any difference in the above respect compared to the TMIC.
Ns04
Also, if anything it improves the pick up after gear changes as, presumably, the boost pressure is not being dumped! I was advised to loose mine when I went to an FMIC to negate the slight delay in boost response that can occur between gear changes with this set up and I've not noticed any difference in the above respect compared to the TMIC.
Ns04
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