Boost Query
15 January 2011, 12:02 PM
#1
Boost Query
hi folks,
i have a facelift classic wagon with a turbo cat back exhaust back and induction kit, been told it has already been mapped but i have no idea what to,
but to cut to the chase it is running 0.8Bar is that about right? i know every car is different but i am just curious, the engine was replaced 12k ago with a new factory unit, the guy that had said he wound back the actuator so it will last longer, how do you know it is set properly? he said it was so it runs on lower boost?
this is my first turbo'd car and and a bit unsure
thanks mark
i have a facelift classic wagon with a turbo cat back exhaust back and induction kit, been told it has already been mapped but i have no idea what to,
but to cut to the chase it is running 0.8Bar is that about right? i know every car is different but i am just curious, the engine was replaced 12k ago with a new factory unit, the guy that had said he wound back the actuator so it will last longer, how do you know it is set properly? he said it was so it runs on lower boost?
this is my first turbo'd car and and a bit unsure
thanks mark
15 January 2011, 12:24 PM
#2
bit more info on ya car please, model, year, upgrades u know off
0.8bar is right for ur car, as for winding the actuator in have a look at the turbo take a pic if u can as this will help us see what u have, also have a look at what ecu u have if so pop the lid off 4 screws and take a pic we will also be able to see if ur running a mapped ecu,
0.8bar is right for ur car, as for winding the actuator in have a look at the turbo take a pic if u can as this will help us see what u have, also have a look at what ecu u have if so pop the lid off 4 screws and take a pic we will also be able to see if ur running a mapped ecu,
15 January 2011, 04:42 PM
#4
well if it has an ecutek i would imagine the boost has been upped to at least 1bar maybe even 1.2bar, best thing is firstly get it to ur local subaru specilist and also get a mapper who deals with ecutek to come and have a look at the map on the car
15 January 2011, 07:36 PM
#5
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if its a my99 you should have more than 0.8 bar of boost, i thought 1 bar was standard on these, and with an ecutek should be higher still! someone correct me if im wrong!
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26 January 2011, 10:01 PM
#10
Well that actuator is not adjustable so can not have been wound in, I would guess I doubt u have a mapped ecu maybe someone pulling ya leg, u need to get pix of ecu, lift carpet up in passenger footwell remove the bolts on the silver cover plate under there is the ecu, but I think u have a standard car with normal boost and normal ecu, 1 other thing is look at the bcs see if there all the pipes r on properly u might have an adjustable boost controller this might be by the offside front suspension drivers side a brass unit with 2 pipes and a dial which will screw in or out again pix please
27 January 2011, 06:44 AM
#11
i'm a little dissapointed, but at least i know now, i thought you could with the actuator via the threaded portion, i will try and get a few pics of the boost control solenoid, and ecu, i am worried incase the engine maybe damaged with it not having a map, it does sometimes pop on over run, but not all the time,
27 January 2011, 07:01 AM
#12
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The actuator is adjustable, you can see the locknut and thread on the rod (last picture, to the right of the big yellow capped tank.
Standard peak boost is 1.05 bar, contnuous pressure should be 0.9.
On Ecutek remapped cars the boost is usually raised to 1.25/1.3 bar.
I would suggest visiting another garage though,as on one hand he lowers the boost to preserve the engine,which on a decent tune is totally unneeded, on the other hand he has nothing against fitting a new standard engine ,when a properly rebuilt 2nd hand one with the weak/troublesome things (bearings/rodbolts for example) rectified,is almost always cheaper and more durable.
Standard peak boost is 1.05 bar, contnuous pressure should be 0.9.
On Ecutek remapped cars the boost is usually raised to 1.25/1.3 bar.
I would suggest visiting another garage though,as on one hand he lowers the boost to preserve the engine,which on a decent tune is totally unneeded, on the other hand he has nothing against fitting a new standard engine ,when a properly rebuilt 2nd hand one with the weak/troublesome things (bearings/rodbolts for example) rectified,is almost always cheaper and more durable.
27 January 2011, 09:02 AM
#13
that acuator has never been adjusted in it's life, if it has been mapped the only 2 reason for 0.8 is
A) the mapper set boost at 0.8bar
B) the compressor pipe runs from compressor straight to wastegate actuator so running on actuator pressure
C) it has a dawes type device that has been fitted to bypass the subaru BCS and wound in for low boost,
my impreza is a 96 wrx with TD05 on actuator pressure it runs 0.5bar i have an apexi avc-r boost controller and run 0.8bar on low and 1.15bar on high boost,
have a good look around bcs or take a wider angle picture for us
just to add i got a feeling ur just running a standard car on standard map a i just noticed you have a normal downpipe with the cat, i have cat back exhaust on mine and i get pop and bang sometimes, if it had been mapped the overfueling that causes it will have been mapped out
A) the mapper set boost at 0.8bar
B) the compressor pipe runs from compressor straight to wastegate actuator so running on actuator pressure
C) it has a dawes type device that has been fitted to bypass the subaru BCS and wound in for low boost,
my impreza is a 96 wrx with TD05 on actuator pressure it runs 0.5bar i have an apexi avc-r boost controller and run 0.8bar on low and 1.15bar on high boost,
have a good look around bcs or take a wider angle picture for us
just to add i got a feeling ur just running a standard car on standard map a i just noticed you have a normal downpipe with the cat, i have cat back exhaust on mine and i get pop and bang sometimes, if it had been mapped the overfueling that causes it will have been mapped out
Last edited by P600wrx; 27 January 2011 at 09:06 AM.
27 January 2011, 12:20 PM
#14
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just to add i got a feeling ur just running a standard car on standard map a i just noticed you have a normal downpipe with the cat, i have cat back exhaust on mine and i get pop and bang sometimes, if it had been mapped the overfueling that causes it will have been mapped out
27 January 2011, 01:59 PM
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Lean or learner on boost can cause a pop as you come off the throttle but the usual mapped in pops and bangs are due to adding fuel (normally no fuel is injected on overrun) and adjusting the timing.
Simon
27 January 2011, 02:02 PM
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hi folks,
i have a facelift classic wagon with a turbo cat back exhaust back and induction kit, been told it has already been mapped but i have no idea what to,
but to cut to the chase it is running 0.8Bar is that about right? i know every car is different but i am just curious, the engine was replaced 12k ago with a new factory unit, the guy that had said he wound back the actuator so it will last longer, how do you know it is set properly? he said it was so it runs on lower boost?
this is my first turbo'd car and and a bit unsure
thanks mark
i have a facelift classic wagon with a turbo cat back exhaust back and induction kit, been told it has already been mapped but i have no idea what to,
but to cut to the chase it is running 0.8Bar is that about right? i know every car is different but i am just curious, the engine was replaced 12k ago with a new factory unit, the guy that had said he wound back the actuator so it will last longer, how do you know it is set properly? he said it was so it runs on lower boost?
this is my first turbo'd car and and a bit unsure
thanks mark
Any ecutek dealer can tell you if it has been mapped using laptop.
Double check you have no header/exhaust leak or boost leak also
Simon
27 January 2011, 03:49 PM
#17
ok folks i have managed to get some photos
firstly thank you all for all your help so far,
i hope these help
JGM how much would it cost for you to come and look to see if it has been mapped? i cannot afford to map it yet though
firstly thank you all for all your help so far,
i hope these help
JGM how much would it cost for you to come and look to see if it has been mapped? i cannot afford to map it yet though
Last edited by Mark82; 27 January 2011 at 09:53 PM.
28 January 2011, 07:33 AM
#18
if there are any other pics req'd please let me know,
getting the feeling i have been done over but at least she may not be over fueling, i do have a VTA DV i forgot to mention that, i willl try and get a pic of all the boost and vac pipes
getting the feeling i have been done over but at least she may not be over fueling, i do have a VTA DV i forgot to mention that, i willl try and get a pic of all the boost and vac pipes
29 January 2011, 08:27 AM
#22
if i am honest mate you have got what looks to be a standard car, remove the battery, uplug the ecu, remove the 2 screws either side and take a picture please this will then be the end to your query as if there is no daughter board fitted you indeed have a standard car running a standard map and all is at it should be
mark
mark
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