New Grimmspeed Downpipe
04-09-2014, 08:21 PM
#1
New Grimmspeed Downpipe
So my car keeps going into limp mode under hard throttle and im looking to fix this without going EWG. I am not spiking its only overboosting by 1 or 2 psi.
Grimmspeed recently came out with a New DP which they claim is better quality than most other DPs on the market they also claim that their design assists in tighter boost control. They also claim that on a dyno their DPs put out higher numbers depending on other mods.
Anyone know if their claims is true? And if it is will it help me with my issue? Anyone get their hands on one of these yet? What do you guys think of their design and their claims?
Here is a a link of the New Grimmspeed DPs...
Downpipe - 08+ WRX/STI/FXT/LGT - GrimmSpeed
Grimmspeed recently came out with a New DP which they claim is better quality than most other DPs on the market they also claim that their design assists in tighter boost control. They also claim that on a dyno their DPs put out higher numbers depending on other mods.
Anyone know if their claims is true? And if it is will it help me with my issue? Anyone get their hands on one of these yet? What do you guys think of their design and their claims?
Here is a a link of the New Grimmspeed DPs...
Downpipe - 08+ WRX/STI/FXT/LGT - GrimmSpeed
04-09-2014, 08:51 PM
#2
So my car keeps going into limp mode under hard throttle and im looking to fix this without going EWG. I am not spiking its only overboosting by 1 or 2 psi.
Grimmspeed recently came out with a New DP which they claim is better quality than most other DPs on the market they also claim that their design assists in tighter boost control. They also claim that on a dyno their DPs put out higher numbers depending on other mods.
Anyone know if their claims is true? And if it is will it help me with my issue? Anyone get their hands on one of these yet? What do you guys think of their design and their claims?
Here is a a link of the New Grimmspeed DPs...
Downpipe - 08+ WRX/STI/FXT/LGT - GrimmSpeed
Grimmspeed recently came out with a New DP which they claim is better quality than most other DPs on the market they also claim that their design assists in tighter boost control. They also claim that on a dyno their DPs put out higher numbers depending on other mods.
Anyone know if their claims is true? And if it is will it help me with my issue? Anyone get their hands on one of these yet? What do you guys think of their design and their claims?
Here is a a link of the New Grimmspeed DPs...
Downpipe - 08+ WRX/STI/FXT/LGT - GrimmSpeed
04-09-2014, 11:19 PM
#7
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Join Date: Apr 2008
Location: Kahaluu, Oahu
Posts: 2,399
Car Info: 07 Sti
Replacing a pipe with another pipe probably isn't going to fix your problems, that is assuming you are already running a downpipe ( and with a 20gxt I surely hope you are ). If you have not already purchased a downpipe, do so. However, if you already have an aftermarket solution then I would look elsewhere to address your overboosting problem.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
04-09-2014, 11:55 PM
#8
Replacing a pipe with another pipe probably isn't going to fix your problems, that is assuming you are already running a downpipe ( and with a 20gxt I surely hope you are ). If you have not already purchased a downpipe, do so. However, if you already have an aftermarket solution then I would look elsewhere to address your overboosting problem.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
04-10-2014, 07:02 PM
#10
what kind of cel are you getting? when you say limp mode, this must mean check engine light is on with the cruise control light blinking.
assuming the cel is related to fuel cut/overboosting, tune your Ecu's boost controller or control it with an external/aftermarket boost controller.
assuming the cel is related to fuel cut/overboosting, tune your Ecu's boost controller or control it with an external/aftermarket boost controller.
04-10-2014, 09:43 PM
#11
Replacing a pipe with another pipe probably isn't going to fix your problems, that is assuming you are already running a downpipe ( and with a 20gxt I surely hope you are ). If you have not already purchased a downpipe, do so. However, if you already have an aftermarket solution then I would look elsewhere to address your overboosting problem.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
Keep in mind overboosting by 1-2psi is actually quite common, especially if you are doing highway pulls and the like since you are loading the motor a lot. An easy fix would be to downshift before the pull ( and likely go faster anyway ) or, you can have your tuner remap your avcs to smooth the peak torque curve and "ease" into the boost instead of the standard high torque peak and fast falloff.
04-11-2014, 12:35 PM
#12
yes limp mode as in cruise light blinking engine light on and hill assist on. i have an EPIC EBCS not 100% sure if its as good as other ebcs but i think its doing the job for the most part....
thanks guys i had a chance to do some data logs yesterday im looking over them right now and im gonna send them to Jar at PDX see what he thinks and i will go from there.
during my logs i did not hit limp mode but i did however hit 22psi which i think is 2 psi over target boost, that was during the middle of the day im afraid it would be different with a temperature drop at night. Am i right or this shouldn't happen?
thanks guys i had a chance to do some data logs yesterday im looking over them right now and im gonna send them to Jar at PDX see what he thinks and i will go from there.
during my logs i did not hit limp mode but i did however hit 22psi which i think is 2 psi over target boost, that was during the middle of the day im afraid it would be different with a temperature drop at night. Am i right or this shouldn't happen?
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