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20 psi? Hmmmmm!

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Old Jul 14, 2008 | 08:28 AM
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1988RedT2's Avatar
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So yesterday I'm out tootling in the teetoo, and I romp on it a couple times. Feels pretty frisky. Pulling in third, I look down at the boost gauge. 20 PSI!!!! WTF? I could have sworn I had it set around 13-15.



I checked under the hood. All the lines are hooked up. Time to check the operation of the manual boost controller, I supposes.
Old Jul 14, 2008 | 09:17 AM
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Uh oh...
Old Jul 14, 2008 | 10:39 AM
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yep! must be fun though
Old Jul 14, 2008 | 10:52 AM
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Thats right around where my friends 87 TII was running with the wastegate vacuum line disconnected(21-22 psi).
Old Jul 14, 2008 | 10:55 AM
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yeah i acually had the barb blow out of the turbos compressor housing did the samething
Old Jul 14, 2008 | 07:24 PM
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I pulled 25 and 30 psi in my merkur xr4ti with the wastegate gone...that motor went out in a blaze of glory the following year.



...it had 400 000km's on the motor though.
Old Jul 14, 2008 | 07:38 PM
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Yeah, I wasn't too concerned since the fuel map in the Haltech would cover it up to 30, within the limitations of the 750 cc/min secondaries. Still, it's a bit higher than I want to run with the stock hybrid turbo.
Old Jul 14, 2008 | 09:05 PM
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Had that happen one night screwing around. I think the Greddy boost controller had a brain fart or something. Thank god for boost gauges!
Old Jul 19, 2008 | 01:49 PM
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RX7 13B 4 UR AZZ's Avatar
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I go overkill with boost control. I put like 3 zip ties on my vac lines. On ecu's on FPR's, Wastegate's i just dont want to take any chances. 1 gone vac line could equal 1 gone motor. But i also have a popoff valve so if there is any boost above 2-3 psi over what i set my boost controler at boost gets realeased. Safety first.
Old Jul 23, 2008 | 09:29 AM
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Use synflex and brass









-150 PSI capable

-No risk of blowing off

-Cheap, cheap, cheap.



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