cobb ap... not hitting target boost psi?
cobb ap... not hitting target boost psi?
Hey guys i now just installed my cobb ap... running stage 2 map for ACN91
thats the specs
"Stage2 ACN91 RAv100 - Intended for an otherwise stock 2009-2010 Mitsubishi Lancer
Ralliart vehicle with a full turbo-back exhaust system with at least one high-flow
catalyst installed, STOCK INTAKE SYSTEM, and STOCK INTAKE FILTER ONLY designed for
Arizona, California, and Nevada 91 octane fuels. Boost Targets: ~20psi peak boost
pressure tapering down to ~13psi by the 7100 RPM redline, +/- 1.5psi."
I am hitting 15.5psi to 16.7psi max....and tapers down to 14.3psi to 14.6psi
??
any one can tell me why? i have checked for boost leak... and checked all my lines... even my hard pipes..
thanks
evil
thats the specs
"Stage2 ACN91 RAv100 - Intended for an otherwise stock 2009-2010 Mitsubishi Lancer
Ralliart vehicle with a full turbo-back exhaust system with at least one high-flow
catalyst installed, STOCK INTAKE SYSTEM, and STOCK INTAKE FILTER ONLY designed for
Arizona, California, and Nevada 91 octane fuels. Boost Targets: ~20psi peak boost
pressure tapering down to ~13psi by the 7100 RPM redline, +/- 1.5psi."
I am hitting 15.5psi to 16.7psi max....and tapers down to 14.3psi to 14.6psi
??
any one can tell me why? i have checked for boost leak... and checked all my lines... even my hard pipes..
thanks
evil
my stock ralliart was peaking at 18psi and tapered down to around 10psi-ish at the red, so even your stock numbers seem to be a bit low
. i would do a boost leak test so you can know for sure. 80% of people that have problems with there boost have a leak. As far as the cobb ap, i went with a custom tune so i really can tell you much about that but let us know what happends...
. i would do a boost leak test so you can know for sure. 80% of people that have problems with there boost have a leak. As far as the cobb ap, i went with a custom tune so i really can tell you much about that but let us know what happends...
Evolving Member
Joined: Feb 2010
Posts: 343
Likes: 0
From: Middle Island ny
there was another member on here that had a problem with cobbs stage 2 tune...i would call cobb or get in touch with this other guy...all i can remember is he has a gray ralliart and lives around rode island....
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Evolved Member
Joined: Sep 2009
Posts: 1,274
Likes: 3
From: Baltimore, MD
my stock ralliart was peaking at 18psi and tapered down to around 10psi-ish at the red, so even your stock numbers seem to be a bit low. i would do a boost leak test so you can know for sure. 80% of people that have problems with there boost have a leak. As far as the cobb ap, i went with a custom tune so i really can tell you much about that but let us know what happends...
. i would do a boost leak test so you can know for sure. 80% of people that have problems with there boost have a leak. As far as the cobb ap, i went with a custom tune so i really can tell you much about that but let us know what happends...any pointer how to start a boost leak test on a ralliart ??
Evolved Member
Joined: Sep 2009
Posts: 1,274
Likes: 3
From: Baltimore, MD
will hunt for boost leak this weekend!
Hey buddy, sorry to hear you are having that issue. Send me a PM and I will tell you what I figured out with Cobb to save you the trouble...because it is a huge pain in the ****.
Newbie
Joined: Jul 2020
Posts: 1
Likes: 0
From: canada
Hello i have same proble my boost stuck on 11 psi
Hello i have thesame problem my boost hitting 11 psi only on 3rd gear full doesnt seem i have any boost leak or something because i check it hope you help me
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