td05 20g on a 2litre
03 March 2008, 01:45 PM
#32
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happy days, dont think ill have anything to worry about with this one then 
read a lot of posts now that the old vf22 does give problems and cant really take any abuse. If it could it would be one hell of a turbo
read a lot of posts now that the old vf22 does give problems and cant really take any abuse. If it could it would be one hell of a turbo
03 March 2008, 03:12 PM
#33
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I spoke to my AndyF about this and the VF banjo is fine to retain so I have.
Thinking about it afterwards, I'm guessing the newage STi has a small diameter hole in the banjo, could be to keep oil pressure to the AVCS, no 100% though.
What year UK turbo do you have?
For 360hp, an 18G would be better, with mine, I'm getting 1bar at 2800rpm,
Heres an over lay of my previous VF35 and my current AFP5/6 20G both mapped by Andy Forrest.
As you can see, there not a lot of difference in power or torque apart from the 20g just keeps on going.
The car is an STi 7 Type UK.
Thinking about it afterwards, I'm guessing the newage STi has a small diameter hole in the banjo, could be to keep oil pressure to the AVCS, no 100% though.
What year UK turbo do you have?
For 360hp, an 18G would be better, with mine, I'm getting 1bar at 2800rpm,
Heres an over lay of my previous VF35 and my current AFP5/6 20G both mapped by Andy Forrest.
As you can see, there not a lot of difference in power or torque apart from the 20g just keeps on going.
The car is an STi 7 Type UK.
Is that with std pump fuel? Or are you adding OB or funny juce
I thought the 20G was more of a 380bhp turbo, so your output is excellent!
The difference in response between the 35 and the 20G looks minimal in that graph and I would suspect it would normally be significantly wider, even with someone of Andy's mapping skills! 
Ns04
03 March 2008, 05:56 PM
#34
Recently, there has been a lot of debate over the 'good ol 20g' turbo, but it does seem to be a solid quick 1.7 bar/380 ish turbo that drops straight into place and readily mapped to give boost a long way up the rev range.
It's cheap too as a bonus compared to the fab 321 series @ £1200.
I have driven my 20g hillclimb race/road car to death for 4 years on a stock low miles Sti V3 long block with one oil change each year (Shell Helix) and it is just great. 380 bhp is a very nice power for the chassis on most roads/conditions, very useable and very tractable.
DropShots.com
It's cheap too as a bonus compared to the fab 321 series @ £1200.
I have driven my 20g hillclimb race/road car to death for 4 years on a stock low miles Sti V3 long block with one oil change each year (Shell Helix) and it is just great. 380 bhp is a very nice power for the chassis on most roads/conditions, very useable and very tractable.
DropShots.com
03 March 2008, 06:33 PM
#35
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when is the turbo running full boost?
the vf22 would be on full, after its map, at about 3500, would the 20g be similar or a bit more laggy?
the vf22 would be on full, after its map, at about 3500, would the 20g be similar or a bit more laggy?
03 March 2008, 07:33 PM
#37
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this is all great news, thanks for all the help and info.
andy have u any advice for the mapper to get the best out of it and avoid surge (whatever that is)
andy have u any advice for the mapper to get the best out of it and avoid surge (whatever that is)
03 March 2008, 08:18 PM
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I spoke to my AndyF about this and the VF banjo is fine to retain so I have.
Thinking about it afterwards, I'm guessing the newage STi has a small diameter hole in the banjo, could be to keep oil pressure to the AVCS, no 100% though.
What year UK turbo do you have?
For 360hp, an 18G would be better, with mine, I'm getting 1bar at 2800rpm,
Heres an over lay of my previous VF35 and my current AFP5/6 20G both mapped by Andy Forrest.
As you can see, there not a lot of difference in power or torque apart from the 20g just keeps on going.
The car is an STi 7 Type UK.
Thinking about it afterwards, I'm guessing the newage STi has a small diameter hole in the banjo, could be to keep oil pressure to the AVCS, no 100% though.
What year UK turbo do you have?
For 360hp, an 18G would be better, with mine, I'm getting 1bar at 2800rpm,
Heres an over lay of my previous VF35 and my current AFP5/6 20G both mapped by Andy Forrest.
As you can see, there not a lot of difference in power or torque apart from the 20g just keeps on going.
The car is an STi 7 Type UK.
03 March 2008, 08:22 PM
#40
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Is it me 
not being in the right frame of mind?
but I think theres ALOT between the RED and the GREEN graph.....
They are only similar with the engine switched off !!
not being in the right frame of mind? but I think theres ALOT between the RED and the GREEN graph.....
They are only similar with the engine switched off !!
03 March 2008, 08:32 PM
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03 March 2008, 08:34 PM
#43
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Hey mate,
Is that with std pump fuel? Or are you adding OB or funny juce
I thought the 20G was more of a 380bhp turbo, so your output is excellent! The difference in response between the 35 and the 20G looks minimal in that graph and I would suspect it would normally be significantly wider, even with someone of Andy's mapping skills!
Ns04
Is that with std pump fuel? Or are you adding OB or funny juce
I thought the 20G was more of a 380bhp turbo, so your output is excellent!
The difference in response between the 35 and the 20G looks minimal in that graph and I would suspect it would normally be significantly wider, even with someone of Andy's mapping skills! Ns04
Originally Posted by Barnesy
Whats your full spec Nick????
Aeromotive AFPR
Prodrive 3 Port Boost Solenoid
AFP5/6 20G
Automatic Water Spray for
WRC Tech TMIC with Ported Inlets to match
Large Bore APS Y-Pipe
APS Dual Port BOV
AEM CAI
Throttle Body Coolant Delete
Oil Catch Can with PCV Delete
Earthing Kit
Kakumei GT Spec Headers
Kakumei 3" Turbo Back Exhaust
NGK PFR7B
Think that it
I'm running V-Power/10% Meth /0.2%NF in the tank.
Stir it all up and it work well
03 March 2008, 08:38 PM
#44
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I had another Sti8 in today Nick with almost identical spec and fuel to you, the only difference was it was running an Sti TMIC instead of the WRC TMIC and it had an AVCR, it made 405bhp so it seems like that intercooler of yours was a good investment 
03 March 2008, 08:38 PM
#45
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Looking at the initial part of the graph, but lines are close together showing the even though the the 20G is a bigger turbo (slower spool), its makes the same power as a smaller turbo (faster spool), that what I mean by not much difference, once the 20G comes alive, it just walks away.
03 March 2008, 09:28 PM
#51
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Heres the graph from my 20g with similar spec.
I see your power just keeps climbing, nice
http://i2.photobucket.com/albums/y11...uartbarnes.jpg
I see your power just keeps climbing, nice
http://i2.photobucket.com/albums/y11...uartbarnes.jpg
03 March 2008, 10:20 PM
#54
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04 March 2008, 12:30 PM
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Looking at the initial part of the graph, but lines are close together showing the even though the the 20G is a bigger turbo (slower spool), its makes the same power as a smaller turbo (faster spool), that what I mean by not much difference, once the 20G comes alive, it just walks away.
04 March 2008, 12:33 PM
#56
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Heres the graph from my 20g with similar spec.
I see your power just keeps climbing, nice
http://i2.photobucket.com/albums/y11...uartbarnes.jpg
I see your power just keeps climbing, nice
http://i2.photobucket.com/albums/y11...uartbarnes.jpg
04 March 2008, 07:45 PM
#57
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Recently, there has been a lot of debate over the 'good ol 20g' turbo, but it does seem to be a solid quick 1.7 bar/380 ish turbo that drops straight into place and readily mapped to give boost a long way up the rev range.
It's cheap too as a bonus compared to the fab 321 series @ £1200.
I have driven my 20g hillclimb race/road car to death for 4 years on a stock low miles Sti V3 long block with one oil change each year (Shell Helix) and it is just great. 380 bhp is a very nice power for the chassis on most roads/conditions, very useable and very tractable.
DropShots.com
It's cheap too as a bonus compared to the fab 321 series @ £1200.
I have driven my 20g hillclimb race/road car to death for 4 years on a stock low miles Sti V3 long block with one oil change each year (Shell Helix) and it is just great. 380 bhp is a very nice power for the chassis on most roads/conditions, very useable and very tractable.
DropShots.com
911 just watchin the videos of your impreza *** me that thing can shift ..seems to boost really early also...u sure its a 20g
what is the spec could be the way for me for the road
04 March 2008, 08:26 PM
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