2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

raising boost?

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Old Aug 18, 2008 | 08:01 AM
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PA raising boost?

I want to know if I can safely raise the boost to 10 or 11psi (before the fuel cut off kicks in) with the stock fuel pump and ecu.
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Old Aug 18, 2008 | 09:21 AM
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No. Fuel cut is at 8.6 PSI.
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Old Aug 18, 2008 | 11:10 AM
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Originally Posted by Aaron Cake
No. Fuel cut is at 8.6 PSI.
oh wow thanks aaron I thought it was 12 for some reason, so if I get the rtek 2.1 and pick the 550cc/720cc setting would it be safe then to do that? of course I would get the fuel pump by then.

Last edited by fredox19; Aug 18, 2008 at 11:26 AM.
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Old Aug 18, 2008 | 08:09 PM
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i've seen on another posts that about 10psi is the extent of the stock turbo.
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Old Aug 18, 2008 | 09:54 PM
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right. and the fuel cut kicks in at 8.6 psi on a stock ecu.


The rtek 2.1 has presets for 4 x 720cc and you can run larger if you trim back the fuel accordingly. I think the 2.1 has +/- 40% or so in the fuel corrections now. So you can run 1000cc's if you need to and trim back some. There is quite a bit of talk around here of the rtek 2.1 and numerous success stories, 95nracer is at 350whp at 14psi with the stock AFM.....


anyways go to the digital tuning website and read up on the rtek. search around here for more info....
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