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I did find a video of a rb25det neo in a r34 gtt with a similar sound, in this video when he is accelerating from inside the cab I hear the same type of air sound, around 45-53 seconds and multiple other times when he accelerates...so maybe its normal and fine?? -
Well given that these are designed for proper circuit racing guys and made from genuine carbon you would be correct in assuming this -
Yeah think they don’t make carbon fiber ones unfortunately -
That’s sick but I have a feeling really expensive …
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well, no luck again.😞 I got home after work and took the entire system off, intake, intercooler, all piping , connections, turbo elbows etc., inspected everything. Everything that makes up the intake, turbo and exhaust system , manifold intake and exhaust, all nuts were present and tight, all gaskets looked like they were sealing fine, I find no cracks, loose fittings, restriction, leaks, nothing.... I reinstalled it all test drove, same hair dryer/leaf blower sound anytime I give it throttle, and we are talking half to 3/4 throttle, and under 3k rpm's , as with this noise and it being new to me I wanted to make sure everything is good before I push it, or drive it aggressively. then I swapped out the 50/50 aftermarket bov for the stock 100 percent recirculation version, another test drive, same exact sound. (except no "ppsssh" sound when I let of throttle.)... I wish I had a stock intake to try as it does have a Apexi intake on it and I wonder if this is causing the loud whooshing sound. I also did a few more various leak pressure tests , 5, 10 and 15 psi and found no leaks in the system. wastegate push rod seems to be moving correctly and is connected as well. turbine wheel seems to be smooth ,stable, intact and very little to no play. Still seems like a lot of hesitation and low power, doubt I could get rear tires to even spin, I expected a lot more punch based on what I have heard and seen with these 25 neo turbo engines. I have never seen or heard one in person, but can't imagine this is correct. I am going to try to see if I can get a much better video of this sound
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