At what point do I need a fuel pump/boost controller
08 January 2015, 05:48 PM
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At what point do I need a fuel pump/boost controller
Hi guys
As I have decided to hang on to the wrx for a while longer I am going to continue with the modifying route... I am looking at two options...
1) full decat with sports cat, panel filter and remap (hopefully attain 280bhp)
2) as above plus 550cc pinks, sti tmic and td05 16g turbo (hopefully attain 320bhp)
now my question is at what point do I need to upgrade the fuel pump and get a 3 port boost controller....Do I need both for either option
As I have decided to hang on to the wrx for a while longer I am going to continue with the modifying route... I am looking at two options...
1) full decat with sports cat, panel filter and remap (hopefully attain 280bhp)
2) as above plus 550cc pinks, sti tmic and td05 16g turbo (hopefully attain 320bhp)
now my question is at what point do I need to upgrade the fuel pump and get a 3 port boost controller....Do I need both for either option
08 January 2015, 07:18 PM
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08 January 2015, 07:34 PM
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I think so for power past 300bhp
JGM made sure I had one before remapping
bet you could find one on the full car breaking section .
yes it will get you past 300bhp with supporting mods.
my opinion i wouldn't put that in my car
walbro 255lph is a good one.
my car hit 305bhp on dyno but JGM said he could get 330-50 out of it so its not bad
08 January 2015, 07:45 PM
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if you get problems finding a fuel pump
i got mine from Midlands Subaru Spares
£30 and its done just over 8000miles with no problems
and its 100% money back if you get any problems >>
https://plus.google.com/114520155578...ut?gl=uk&hl=en
i got mine from Midlands Subaru Spares
£30 and its done just over 8000miles with no problems
and its 100% money back if you get any problems >>
https://plus.google.com/114520155578...ut?gl=uk&hl=en
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08 January 2015, 08:00 PM
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08 January 2015, 08:05 PM
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08 January 2015, 08:17 PM
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08 January 2015, 08:55 PM
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Personally I am going down the DIY mapping route. Have a word with your mapper and he will let you know how to go on(usually they will fit the boost solenoid at the remap session
08 January 2015, 09:00 PM
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I have their fuel pump and 3 port. Fuel pump is running sweet and are a good quality pump. I've not fitted the 3 port yet as I'm waiting to remap(this is needed when fitting) comes with all fittings and is easy to install.
Personally I am going down the DIY mapping route. Have a word with your mapper and he will let you know how to go on(usually they will fit the boost solenoid at the remap session
Personally I am going down the DIY mapping route. Have a word with your mapper and he will let you know how to go on(usually they will fit the boost solenoid at the remap session
08 January 2015, 09:23 PM
#21
the 3 port isn't essential, but it is better at controling boost, so it's worthwhile
I bought a fuel pump from http://www.racespecperformance.com/i.../255342-1.html it cost me £35 and has lasted longer than 2 walbro's that both failed within 2 years and they cost twice the price
255/290 - it depends what you mean by 'better'. the 255lh will empty a full fuel tank in 15 minutes, I don't think your engine will require more than that
. the 255 is rated at up to 600bhp.
the pump forces fuel towards the engine, then there is a fuel pressure regulator (FPR) on the fuel rails and that controls the fuel pressure going through the injectors. the pump is constantly running and any fuel not used by the engine is returned back to the fuel tank (others will probably be able to describe things better, but this should help)
I bought a fuel pump from http://www.racespecperformance.com/i.../255342-1.html it cost me £35 and has lasted longer than 2 walbro's that both failed within 2 years and they cost twice the price
255/290 - it depends what you mean by 'better'. the 255lh will empty a full fuel tank in 15 minutes, I don't think your engine will require more than that
. the 255 is rated at up to 600bhp. the pump forces fuel towards the engine, then there is a fuel pressure regulator (FPR) on the fuel rails and that controls the fuel pressure going through the injectors. the pump is constantly running and any fuel not used by the engine is returned back to the fuel tank (others will probably be able to describe things better, but this should help)
08 January 2015, 09:29 PM
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the 3 port isn't essential, but it is better at controling boost, so it's worthwhile
I bought a fuel pump from http://www.racespecperformance.com/i.../255342-1.html it cost me £35 and has lasted longer than 2 walbro's that both failed within 2 years and they cost twice the price
255/290 - it depends what you mean by 'better'. the 255lh will empty a full fuel tank in 15 minutes, I don't think your engine will require more than that. the 255 is rated at up to 600bhp.
the pump forces fuel towards the engine, then there is a fuel pressure regulator (FPR) on the fuel rails and that controls the fuel pressure going through the injectors. the pump is constantly running and any fuel not used by the engine is returned back to the fuel tank (others will probably be able to describe things better, but this should help)
I bought a fuel pump from http://www.racespecperformance.com/i.../255342-1.html it cost me £35 and has lasted longer than 2 walbro's that both failed within 2 years and they cost twice the price
255/290 - it depends what you mean by 'better'. the 255lh will empty a full fuel tank in 15 minutes, I don't think your engine will require more than that
. the 255 is rated at up to 600bhp. the pump forces fuel towards the engine, then there is a fuel pressure regulator (FPR) on the fuel rails and that controls the fuel pressure going through the injectors. the pump is constantly running and any fuel not used by the engine is returned back to the fuel tank (others will probably be able to describe things better, but this should help)
08 January 2015, 09:30 PM
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08 January 2015, 09:54 PM
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Yes , Read this for enlightenment
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
08 January 2015, 10:00 PM
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Yes , Read this for enlightenment
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
I'm going to take from it that I should map everything in one (the plan from day 1) and that I should buy a 3 port. I'm not sure I have a 'made in china' sticker on the TD05...is it really not a good turbo?
08 January 2015, 10:02 PM
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08 January 2015, 10:06 PM
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Yes , Read this for enlightenment
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
http://www.cobbtuning.com/Technical-...es-s/70674.htm
For a Mechanical solution to improve control on a 2 port Internal WG
Personally I use a Kinguwa Actuator , and retain the internal WG
actuator. This replacment actuator can be tuned with different spring rates to open at the pressure when you want it to therefore making the otherwise somewhat hit and miss std 2 port solenoid boost control. On the China TD05 16 G wastegate actuator opens way too early moving even at 5 psi .
On a 2 port system internal actuator you should look for the actuator to start to open at about half of your target boost level . Typically in range around 1.2- 1.5 bar on a well mapped 2.0 engine with a TD05 16G. The larger the size turbo gate is the more difficult it becomes to control the fine fluctuations of pressure just as it starts to open.
Fitting a higher WG spring rate should also help you bring on boost earlier in the rpm range than is often the case with the TD04 standard acutators which open at a rather low 6-7 psi.
So its somewhat easier for you mapper to tune the timing / fueling together with the other modifications , if the gate is not flapping about before the turbo has produced some boost for the engine.
Alternatively you can use a three port to an external WG eliminate this effect too as it can be tuned /mapped to vent to the acutator or to the intake.
Linksfahrer
very helpful
Thanks
08 January 2015, 10:10 PM
#30
I was advised to get a walbro with first map (6 years ago) it didn't last 2 years, bought another one and same again. had the race spec one on over 2 years and it's still fine.
are you fitting a bigger top mount? I have a race spec top mount http://www.racespecperformance.com/i...tercooler.html + http://www.racespecperformance.com/i...-pipe-kit.html
don't know how it compares side by side to the sti item though