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1.2 bar on Evo IX !?

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Old Jan 2, 2007, 08:32 PM
  #31  
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Try boostin in different gears. I notice I boost less in first and second, but I hit 1.4 in 3rd
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Old Jan 2, 2007, 08:34 PM
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Mine is not that high and definetly drops to at least 1bar
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Old Jan 2, 2007, 08:36 PM
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Originally Posted by 7oey
Mine is not that high and definetly drops to at least 1bar
Maybe try getting better gauges?

My Defis are much easier to read. I never knew I hit 1.4 until I got an aftermarket boost gauge haha.

Those stock ones are tiny
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Old Jan 2, 2007, 08:54 PM
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Originally Posted by fimotorsports
stock gauges are in kg/cm and not bar... reads a little higher than Bar. Here is the conversion calculator. http://www.csgnetwork.com/boostprescalc.html

my stock IX would do the same, it would go 1.2 kg/cm to .9 or 1.0 at redline
the original gauges are in bar (kg/cm2)
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Old Jan 2, 2007, 09:02 PM
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i'll throw this out there one more time since it was kind of ignored-do a boost leak test. you're boosting less than a stock evo should and just because it's stock doesn't mean there is no leak.
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Old Jan 2, 2007, 09:07 PM
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also varies with elevation i believe...and the guy hitting 1.8 bar with dp and no tune...thats a bit high
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Old Jan 2, 2007, 09:07 PM
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Originally Posted by hondafan
i'll throw this out there one more time since it was kind of ignored-do a boost leak test. you're boosting less than a stock evo should and just because it's stock doesn't mean there is no leak.
spot on
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Old Jan 2, 2007, 09:08 PM
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oh also forgot to add, my car was maxing at 15 psi stock with aftermarket gauge. since i got my tune and forge mbc its been solid.
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Old Jan 2, 2007, 09:24 PM
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Originally Posted by leggomycraigo
oh also forgot to add, my car was maxing at 15 psi stock with aftermarket gauge. since i got my tune and forge mbc its been solid.
so you're covering up your leak in the piping system by turning up the boost with an MBC? you should always perform a leak test prior to a tune.
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Old Jan 2, 2007, 09:24 PM
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i just installed a catback on my stock ix and now it will spike to about 21-22psi sooommetimes usually 17psi and immediatley drop off to about 15 and when it drops off you definatley feel the whole car jerk....i did a leak test and found nothing are there anyother boosting problems besides leaks?
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Old Jan 2, 2007, 09:27 PM
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Originally Posted by ddubdb3
i just installed a catback on my stock ix and now it will spike to about 21-22psi sooommetimes usually 17psi and immediatley drop off to about 15 and when it drops off you definatley feel the whole car jerk....i did a leak test and found nothing are there anyother boosting problems besides leaks?
is the snorkel to your airbox fastened down securely? sometimes it'll suck to the hood and cause a jerk/drop-off in boost if not secured.
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Old Jan 2, 2007, 09:33 PM
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i have a intake adapter filter so theres no airbox...but even before the intake and exhaust the car did the same thing just not as dramatic or harsh. i even tryed taking out the snorkel and it made no effect...
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Old Jan 2, 2007, 09:35 PM
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Originally Posted by ddubdb3
i have a intake adapter filter so theres no airbox...but even before the intake and exhaust the car did the same thing just not as dramatic or harsh. i even tryed taking out the snorkel and it made no effect...
do you have a tune? you could be hitting fuel cut if not.
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Old Jan 2, 2007, 09:46 PM
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no no tune yet but isnt fuel cut at like 7200 or so i hardly get to 7000 it only does it at wot
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Old Jan 2, 2007, 10:10 PM
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Originally Posted by ddubdb3
no no tune yet but isnt fuel cut at like 7200 or so i hardly get to 7000 it only does it at wot
fuel cut can happen at any rpm that your under full boost. get a tune for sure, i think you're hitting fuel cut.
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