EVO8 low boost (11psi)
Aug 10, 2008, 01:26 PM
#1
EVO8 low boost (11psi)
hello , i bought EVO8 from US , when i installed boost gauge , i figured that there is only 10-11psi of boost , where can i find problem?
i found on car HKS full exhaust , blitz bov , tuned manifold , injen intake , big alluminium radiator ...
i found on car HKS full exhaust , blitz bov , tuned manifold , injen intake , big alluminium radiator ...
Aug 10, 2008, 01:56 PM
#2
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I bought one of mine and it also came like that. The person didnt re-install the boost solinoid. See if there is only one hose on the actuator and it connects to the pipe on the turbo. If thats the case, then you are only running off the actuator.
Aug 12, 2008, 06:48 PM
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Hey i did alot of work to my evo didn't have a boost gauge installed and though everything was cool , but when i went to get it tuned i was hitting like 14 tappering to 13 psi of boost. Matt and swift motorsports who tuned my car said it was a bad boost solinoid which tend to go bad in our cars reguardless of miles on the car. another friend of mine with an evo was hitting 11psi just like you. check to see if ur solinoid is still there (its located under the intake against the subframe rails. as long as its there and pluged in more then likely thats ur problem. MBC or EBC will fix that.
Aug 14, 2008, 09:39 AM
#6
hi there , i bought mbc but i want to tell u what happend to me today and heed some advise before i install it...
on firs pic is what happend , second is what i find out , maybe on that u'll find out why my car suddenly gets very fast after boost gauge wire jumps off ... on third pic there is what i've done , after all i get 16psi peak and something like 14psi boost
on firs pic is what happend , second is what i find out , maybe on that u'll find out why my car suddenly gets very fast after boost gauge wire jumps off ... on third pic there is what i've done , after all i get 16psi peak and something like 14psi boost
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Aug 29, 2008, 11:52 PM
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sounds to me like your tapping the wrong line... somethings definatly wrong when your spiking at ont 14 psi..... you should be tapping into this line on the intake manifold for boost coming into the motor.... youll get a more acurate reading this way....http://www.lancershop.com/customer/pages.php?pageid=14
about half way down youll see the FPR line making a loop on the intake manifold, thats the line to tap into.... good luck
about half way down youll see the FPR line making a loop on the intake manifold, thats the line to tap into.... good luck
Sep 1, 2008, 09:30 PM
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the stock lines connecting to the solenoid have little pills in them to regulate pressure...without the pills you running off the actuator- 11psi. That could be your problem or the BCS went bad. Either way a MBC fixes it.
Last edited by used2havahonda; Sep 1, 2008 at 09:39 PM.
Sep 8, 2008, 08:58 PM
#14
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Just make sure you straighten out where you ahve your boost gauge tapped into... If its in the wrong spot, your not going to get an accurate boost reading...
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