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Boosted Performance single turbo build

Originally Posted by roplusbee Ditto. To Boosted Performance: Not sure if I am reading the graph correctly, but is this puppy in full boost by 3500-4000 ish RPM? That would

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Old 10-08-2012, 01:39 PM   #1 (permalink)
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Ditto.

To Boosted Performance:

Not sure if I am reading the graph correctly, but is this puppy in full boost by 3500-4000 ish RPM? That would be crazy fast for a street car.

With the boost controller 10psi by 3800rpm, so yes it is very responsive.
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Old 10-08-2012, 06:43 PM   #2 (permalink)
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With the boost controller 10psi by 3800rpm, so yes it is very responsive.
It spools that fast without the boost controller as well. My gain is only set at 15 with my current setup
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Old 10-08-2012, 07:46 PM   #3 (permalink)
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It spools that fast without the boost controller as well. My gain is only set at 15 with my current setup
That's where I was at. I wish I had more time to mess with the gain to have boost come on sooner, but spinning the tires at 60mph when hitting full boost in 3rd gear wasn't the best powerband haha...although fun!
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Old 10-08-2012, 09:57 PM   #4 (permalink)
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That's where I was at. I wish I had more time to mess with the gain to have boost come on sooner, but spinning the tires at 60mph when hitting full boost in 3rd gear wasn't the best powerband haha...although fun!
You can see the benefit of a low mount twin scroll (vs. to mount open turbine housing) if you were spooling the same with your T3 .82 a/r (equivalent turbine). In theory that turbine should have spool a good bit faster compared to a T4 1.0 a/r twin scroll, since it is much smaller.

Here is another example...also twin scroll but with the larger 67mm turbo. This was a 6766 1.0 a/t twin scroll on a 350z (so even less displacement to drive the turbine):

http://i137.photobucket.com/albums/q...scrolldyno.jpg


You can see by the torque, that with some aggressive timing it was spooled at 3500rpm (to 9psi spring pressure). For DJ conversion add 13% to the final numbers.
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