pic of my custom wastegate recirculation
#6
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When I bought this FD the single was already on it. It was recirc'd and it seemed like it was acting weird. So I had my friend cut it out and plump it straight out behind the tire. I found out after the fact that they had a 55mm gate, plumbed with a 2 inch pipe, going into a nickel sized hole back into the exhaust... WTF?!
#7
When I bought this FD the single was already on it. It was recirc'd and it seemed like it was acting weird. So I had my friend cut it out and plump it straight out behind the tire. I found out after the fact that they had a 55mm gate, plumbed with a 2 inch pipe, going into a nickel sized hole back into the exhaust... WTF?!
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#16
re-read post #9. I have done the open wastegate thing and I got tired of it attracting attention. My current setup has a Racing Beat catback and there is a HUGE difference in how loud the car is when a wastegate dumps to atmosphere.
I used to have an n/a 2nd gen with dual N1's, no cat, and turbo rotor housings which don't have the silencers in the exhaust sleeves that the n/a's normally have. I know how loud these cars can be. Daily drive really loud rotaries on and off for 5 years and you get sick of it. And you'll note that I didn't just merge the dump pipe from the side at a 90 degree angle, I was thinking about efficiency the whole time. Think about how many modified cars run traditional internal wastegate setups. With some exceptions (ATP internal wastegate, open wastegate dumps, etc) an internal wastegate is about as performance-inefficient as you can get when it comes to routing wastegate discharge into the main exhaust stream.
I used to have an n/a 2nd gen with dual N1's, no cat, and turbo rotor housings which don't have the silencers in the exhaust sleeves that the n/a's normally have. I know how loud these cars can be. Daily drive really loud rotaries on and off for 5 years and you get sick of it. And you'll note that I didn't just merge the dump pipe from the side at a 90 degree angle, I was thinking about efficiency the whole time. Think about how many modified cars run traditional internal wastegate setups. With some exceptions (ATP internal wastegate, open wastegate dumps, etc) an internal wastegate is about as performance-inefficient as you can get when it comes to routing wastegate discharge into the main exhaust stream.
#18
Crash Auto?Fix Auto.
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Some guys like it, I used to. I ran mufflers, all kidns of different setups but I can say with 100% confidence my car is much more tame noise wise with it recirculated - there's no debate there. Sure the car's still loud @ 20psi/7500RPM, but everything will be when it makes power. Just because a person doesn't want to hear that piercing scream doesn't mean they're bitching about noise - just that its much more streetable noise.
**** my Greddy gate used to open between shifts while driving in town. Cool for a year, then lame.
#19
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My 4" isn't loud at WOT, and flows a ****-ton. I have both 44's recirculated and am perfectly content with its efficiantcy, LOL... (1.3:1 intake to exhaust pressure ratio at 9psi)
#24
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Every time J talks I feel like I'm watching that whiny **** on American Idol. And I hate American Idol.
I think it's a job well done for its intended purpose.
I think it's a job well done for its intended purpose.