GT3076R 2005 WRX STi lapping at High Plains Raceway
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- Опубликовано: 14 окт 2024
- I was having some spark-blowout issues up top so you'll see me back off on the longer straights, but other than that it was a great day on the track
The car has a rotated GT3076R and a Cosworth/Manley rotating assembly running E85 (450awhp), stock Brembos with Carbotech XP10/XP8, and KW V3 coilovers on 255/35/18 Potenza RE-11s.
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Sounds good with IWG. Subies sound good with IWG and EWG. Great video pal.
It has an EWG setup with the dump tube routed back into the down-pipe after the catalytic converter. It is not IWG.
What was your reasoning for doing after the cat? Not enough space or room for the air to come back in without disrupting flow? Or would it affect the cat?
Patrick just less restrictive flow
What are ur kwv3 settings? I have found stiff rebound to help with understeer but not quire there yet
What type of BOV are you using? Are you happy with your choice of turbo? I'm doing research for my build.
Tial Q bov. Yes, I am very happy with the turbo.
why did you go with 8.2:1 CR? its not a big diff but i though E85 would like higher CR. awesome car either way
These engines have some heat issues already and I've not been impressed with the benefits of higher compression in this application.
cassiusclayd cool thanks for the insight.
How much psi peak ?
+Fernando Fernandes 23psi
I know this has been a couple years, but what kind of times were you running then?
sounds like you have a bit of turbo surge
it's just chop from the BOV staying closed when I let off at low boost levels. The surge you need to worry about is under throttle.
What spring do you have in the tial q?
I honestly don't remember which spring is in it.
Is it dumping all the compressed air fully out of the induction pipe?
There was a guy who owned a skyline (Make irrelevant) running a HKS turbo saying not using a BOV & surge didn't have an impact of turbo longevity or as he said to me "Misinformed" any truth or not?
I personally have to disagree.
Neal Willey there are two different types of "surge." The damaging surge happens under heavy boost, sometimes even while the throttle plate is open. This puts a tremendous strain on the "cartridge" of the turbo as there are opposing forces on the compressor and turbine side. What you are hearing on my car is under very low boost or partial-throttle slow closing of the throttle. The BOV is functioning fine, there is just not enough pressure differential to open the valve. The reason it is so audible on my car is because, along with being rotated, my turbo is raised 3 inches and I have a chambered SPT muffler which is extremely quiet. It's perfectly safe for the turbo. Anything above ~7-8 PSI it vents.