Single Turbo RX-7's Questions about all aspects of single turbo setups.

What boost controller?

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Old Mar 19, 2010 | 06:20 PM
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What boost controller?

So last year I ran 24psi all season. I wanted to bump it a bit towards the end so I upped the gate spring. Gate would open later but still max boost was 24ish. I seem to remember reading the profec B was only good for 24psi. ??

If I swap what next?

I am running the Synapse gate that has some other ports to try still.
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Old Mar 19, 2010 | 06:51 PM
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Apexi AVCR ftw!
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Old Mar 21, 2010 | 03:28 AM
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Greddy B Spec II is a good choice.

thewird
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Old Mar 21, 2010 | 03:39 AM
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yesir ..
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Old Mar 21, 2010 | 04:29 PM
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Thumbs down

Originally Posted by thewird
Greddy B Spec II is a good choice.

thewird

Every car I have messed with having a spec II had issues.
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Old Mar 21, 2010 | 05:06 PM
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What type of issues, every car that used one that I tuned worked perfect boost wise o.O

thewird
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Old Mar 21, 2010 | 06:11 PM
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Profec B Spec 2 running 24psi here. No problems.
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Old Mar 21, 2010 | 06:43 PM
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Getting boost to turn up and hold consistant. In fact I had Ray Wilson here last year and my buddies car had issues with the spec II and Ray mentioned he has had bad luck with those.

I love my current greddy B old school. Solid piece. But 24-25 seems to be the max I can sqeeze out of it. I am going to try and run differant port settings on my synapse gate and see what that yields.
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Old Mar 21, 2010 | 06:52 PM
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The problem is most likely with the wastegate, a lot of people have had problems getting them to work right with ebc's. how is it hooked up?

thewird
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Old Mar 21, 2010 | 09:43 PM
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I ran a tial before and high boost setting all the way open was 24psi. Had bad boost creep so swaped to synapse 50mm and still max boost 24-25psi. Swaped to larger spring= same result.
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Old Mar 21, 2010 | 09:57 PM
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What settings were you using on the profec? Also, the Synapse gate is not the same as normal wastegates to control boost, you have to T the 2 top ports for the EBC and the 2nd one from the bottom from the turbo boost source.

thewird
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