Turbo S2000
I don't understand how the turbo works...I was told it has the same effect of a small turbo and a large turbo...Meaning it will spool full boost at low RPMs say 1500 and hold it til redline...I know porchse uses a turbo similar to what I'm talking about on the 911...My question is what would be needed to make it work...Will a regular manifold work etc...
Yes it's a tubro from a rdx my friend Jason has a 2005 NFR S2000...Witch he wanted to supercharge but he's now thinking of a custom turbo kit...
Yes it's a tubro from a rdx my friend Jason has a 2005 NFR S2000...Witch he wanted to supercharge but he's now thinking of a custom turbo kit...
You would have to look at a cutaway of one, they are too complicated to explain without pictures.

The red part acts like an internal wastegate, kind of (not really, only for regulating boost), it can slide with the direction of the central shaft. When it closes, the area going into the turbine housing from the exhaust manifold is greatly reduced, thus increasing pressure on the turbine inlet and generating virtually zero lag. As the boost pressure increases, the PWM output will allow the 100 psi pressure to slowly actuate the armature that controls the position of the VGT mechanism, thus reducing turbine inlet pressure and allowing exhaust to go through the turbine housing and around a much larger area of the vanes, thus reducing boost pressure. Unlike a traditional turbo setup, none of the exhaust is routed around the turbine wheel, it all basically goes through it. Only the area changes.

The red part acts like an internal wastegate, kind of (not really, only for regulating boost), it can slide with the direction of the central shaft. When it closes, the area going into the turbine housing from the exhaust manifold is greatly reduced, thus increasing pressure on the turbine inlet and generating virtually zero lag. As the boost pressure increases, the PWM output will allow the 100 psi pressure to slowly actuate the armature that controls the position of the VGT mechanism, thus reducing turbine inlet pressure and allowing exhaust to go through the turbine housing and around a much larger area of the vanes, thus reducing boost pressure. Unlike a traditional turbo setup, none of the exhaust is routed around the turbine wheel, it all basically goes through it. Only the area changes.
They were experimenting with electronically controlled VGT when I left the industry, but none of them were holding up to the kind of abuse we would put out cars through. This is basically what Acura is using. I can not remember what electrical properties are needed to drive the device though. Most of my experience is with air actuated ones. Hell, that was 4 years ago now, maybe they figured it out. You could probably get an EE to figure out how to drive it, and give feedback into the ECM, sorry I am an ME.
It sounds like it would be the perfect turbo choice for the S2000...It would give you power all over the place...I heard the one used on the RDX can only hold up to 15PSI before it runs out of breath...But still on a S2000 with a good tune...You could hit 450-500WHP with that kind of boost...
Originally Posted by JayStyles662,Mar 4 2009, 08:30 PM
It sounds like it would be the perfect turbo choice for the S2000...It would give you power all over the place...I heard the one used on the RDX can only hold up to 15PSI before it runs out of breath...But still on a S2000 with a good tune...You could hit 450-500WHP with that kind of boost...
I'm not really sure on the specs of the turbo...To be completely honest...I've searched around the internet and really couldn't find anything on it...I was just saying 15psi I have seen a tons of s2ks break 450RWHP on 15psi...I mean tuning has a lot to do with it and good EQ mani etc...supporting mods...But I'm sure it can be done even if the turbos CFM is close to a 30R or 35R...I don't know that is why I'm posting...
Originally Posted by JayStyles662,Mar 5 2009, 11:23 PM
I'm not really sure on the specs of the turbo...To be completely honest...I've searched around the internet and really couldn't find anything on it...I was just saying 15psi I have seen a tons of s2ks break 450RWHP on 15psi...I mean tuning has a lot to do with it and good EQ mani etc...supporting mods...But I'm sure it can be done even if the turbos CFM is close to a 30R or 35R...I don't know that is why I'm posting...
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