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Originally Posted by motoextreme I'm going under the knife boys! I'm reaching out to him right now and he can have my car tomorrow if he wants it. Done deal

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Old 02-03-2010, 10:06 AM   #1 (permalink)
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Originally Posted by motoextreme View Post
I'm going under the knife boys! I'm reaching out to him right now and he can have my car tomorrow if he wants it.

Done deal and I'll make sure we're all hooked up.

thats cool man, ask lots of questions too. Like how do they keep the long intakes up in pressure or boost or whatever it is, blow off valve or recirculating diverter valve etc.? How do they deal with the lag? Im assuming this will be a TT right? A quick and easy and less expensive TT would be great for price wars here.
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Old 02-03-2010, 12:57 PM   #2 (permalink)
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thats cool man, ask lots of questions too. Like how do they keep the long intakes up in pressure or boost or whatever it is, blow off valve or recirculating diverter valve etc.? How do they deal with the lag? Im assuming this will be a TT right? A quick and easy and less expensive TT would be great for price wars here.
I don't know if you prefer to hear fromt hem yourself or what. But to my understanding, the piping diameter is more important than the length overall. It's like a water hose that's been running. You have it running low and then turn the knob all the way to it's max pressure. How quick you turn the knob (turbo) is more important than the amount of travel needed since that can be offset by diameter (intercooler piping). That's essentially how it works.

Well let me ask this, do you understand how a turbocharging system works? It's not like a blow-dryer shooting pressure through a mile long tube. It's more like us taking a straw and blowing through it. The amount of air turbos tend to produce are insane.
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Old 02-03-2010, 01:04 PM   #3 (permalink)
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I don't know if you prefer to hear fromt hem yourself or what. But to my understanding, the piping diameter is more important than the length overall. It's like a water hose that's been running. You have it running low and then turn the knob all the way to it's max pressure. How quick you turn the knob (turbo) is more important than the amount of travel needed since that can be offset by diameter (intercooler piping). That's essentially how it works.

Well let me ask this, do you understand how a turbocharging system works? It's not like a blow-dryer shooting pressure through a mile long tube. It's more like us taking a straw and blowing through it. The amount of air turbos tend to produce are insane.

I understand to a point, Ive had two Audi TTs that I was into modding and all to include upgrading the turbo on one. With these cars they used a recirculating diverter valve to help keep unused air in the intake system to help keep pressure up and not a blow off valve which just throws it away. I think that if they do something like this the length wont be a factor either, plus once air is moving it will continue to be there moving, its not like the piping will lose all the air and have to start over again. Plus ive always heard that with turbos you want a larger diameter exhaust, to a point, so as not to create much back pressure as the turbo itself does that and to go along with that you would want a better flowing air intake too.
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Last edited by Zsteve; 02-03-2010 at 01:06 PM.
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Old 02-03-2010, 01:32 PM   #4 (permalink)
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really recirculating valves aren't for keeping the pressure up, they simply don't screw with the fuel tune on a car that comes with a draw through MAF sensor. Any type of blow off valve or recirculating valve is only there 2 do one purpose and that is remove pressure so the the compressor wheel doesn't go into surge (which allows the wheel to keep spinning faster/longer so boost stays up) it's not recycling the pressure it is allowing the turbo to get back up to pressure faster.
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Old 02-03-2010, 01:39 PM   #5 (permalink)
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On a rear mount kit you want to keep the exhaust diameter small like 2.5" in order to maintain velocity. they also use relatively small charge piping which is no bigger than the outlet of the compressor housing in order to increase boost response. Honestly i don't think we have a large enough engine to support a twin turbo rear mount setup, maybe a single rear mount.
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Old 02-03-2010, 03:23 PM   #6 (permalink)
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All points well taken. Bear with me, I wrote them a long email and if I do not hear back I'll call tomorrow but trust me when I say you'll like the outcome. We'll start a whole new thread on the situation once its confirmed.
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