how are people constantly overboosting these cars?

my best guess is MBC and zeroing out downward corrections.

 

I'd like to know this as well

 

no i was not a MBC
i was still using the stock boost control solenoids
Well my best guess it that here in indiana at the time the temperature had drop to 10 degrees and in cold weather the air is more compressed thus over boosting
thats just what i could make out of it

 

gotcha. that would do it.

after your new motor is done look into adding RAX patch when you tune or make sure you tuner knows about it.

it adds intake air temp adjusted bgwdc adjustments to prevent overboosting in cold conditions.

other good measures are psi based boost control with the barometic compensation to prevent overboosting due to elevation changes.

https://www.evolutionm.net/forums/ec...m-patches.html

 

What psi were u tuned for? I can't imagine the car overboosting more then a couple lbs at most and that should be ok as long as its not happening over and over. Also since u were tuned with stock solenoids was the load cutoff not setup?

 

will def look into that

 

i was tuned for 25psi but i had retuned it myself to 27psi
yes it was constantly overboosting
i dont know really know if it was or wasnt

 

oh we are comparing cracked ringlands?



i was knocking to **** cause i was running too must boost at the track. Ate a spark plug through cyl 4.

 

i think knock was a factor in mine to but all my plugs were fine

 

Did u have a boost gauge?

 

yes sir a aem boost gauge that how i knew that i had hit 32 psi right before the motor give out

 

So you were tuned for 25.. you turned it up to 27lbs.. and tuned it to 27lbs.. and somehow boosted 5 lbs over your target?

not trying to be a jackass but this could have easily been avoided with Error correction as well as Load/boost limit table being set up properly.

good luck with the build though

 

yep overboosted more then 5 psi over target
i dont doubt that could of been avoided but i really was worryed about it at the time
and yes it was a very stupid mistake

 

sorry to hear that man. how much hp where you pushing at the time? were you running stock turbo?

 

Its all good the cars now built and has been tearing up the streets for the past few months lol
Well I would say no more then 350whp but massive torque due to very high boost and yes it was stock turbo at the time