NoPistons -Mazda Rx7 & Rx8 Rotary Forum - Not Boosting As Much As Should Be

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- - Not Boosting As Much As Should Be (https://www.nopistons.com/2nd-generation-specific-17/not-boosting-much-should-9127/)

Daiv Makitsu

12-10-2002 10:14 PM

My car normally and used to boost at 17 psi, but recently it won't go past about 14 psi. Any clue why this would be? maybe just a vacuum line or something? thanks

Erik	12-10-2002 10:20 PM

Quote:

Originally Posted by Daiv Makitsu' date='Dec 11 2002, 04:14 AM

My car normally and used to boost at 17 psi, but recently it won't go past about 14 psi. Any clue why this would be? maybe just a vacuum line or something? thanks

mods? https://www.nopistons.com/forums/pub...IR#>/dunno.gif

Daiv Makitsu

12-10-2002 10:23 PM

j-spec engine, street ported, T4 turbo, 720 injectors, 850 primaries, haltech,

1Revvin7

12-10-2002 10:26 PM

check vac lines/intercooler piping, and compression.

Daiv Makitsu

12-10-2002 10:28 PM

any advice in that checking of vac lines? or suggestions of any kind would be great. thanks

j9fd3s

12-10-2002 11:01 PM

check all of your boost/ intercooler pipes, you prolly have a loose clamp

mike

Scott 89t2

12-11-2002 01:13 AM

is your vacum reading at idle the same?

you have a boost controller?

Daiv Makitsu

12-11-2002 05:56 PM

normally the boost at idle is about -10.5-11, but not its up more around -14.5

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