Quote:
Originally Posted by Sgop335
I have the hyperboost dvs similar to turbosmart. These have larger vent areas than stock and dont leak. Lately i have experimented running just one dv and blocking the other dv hole. I kept an eye on boost mean and found it no different than value with two stock dvs, especially when taking your foot off. Its 19-20psi spike. This has given me the best low rpm torque so far.
will try to post a pic.
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That's funny because yesterday what I did was put back the two small airfilters on the inlets and block off one dv hole on the cp. The remaining dv did seem to close sooner and ofcourse blow off harder. The car had a bit less turbo lag then with 2 VTA dv's, but I still think that my OTS MHD map V8 works best with the stock dv's recirculating, I think they keep the turbo's spooling a little better down low. The overall grunt down low feels better with stock DV is what I mean. But with the small airfilters on the inlets I do feel a bit more grunt up high in the rev range. But as I said previously for me as a drifter I like more grunt down low, when I do drifting and give small dots of throttle the lag needs to be as small as possible and each time the dv's blow off in the inlets keeps the turbo's spooling a little bit better in between throttle inputs.
So I bought 2 almost new stock dv's from a guy who switched to BOV cp, because I cut up my original stock dv's (with 150k miles on them) these new ones have just 20000km, he has a bill for them.
I see in your signature you have a homemade tune, but when I open your datazap it doesn't seem to have high boost or timing, I can recommend you V8 E30 or E50 MHD, it targets around 18.5 and tapers to around 16psi and has timing around 13 to 12, great power on those maps as you can see in my last virtual dyno, around 450-460whp!