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krayzie
Regular


Registered:
April 2003
 
440hp GT25 Turbo Thu, 25 December 2003 23:08 Go to next message
Im doing a turbo conversion for my 4agze. I have a bigport head with larger cams and a lot of port work done. I have the chance to get one of these turbos at a good price. What I wanted to know is what rpm would a turbo like this start coming on boost on the map 4agze engine?

I think this turbo has the 0.70 A/R compressor housing.

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Sprinta
Regular


Location:
Perth
Registered:
September 2002
Re: 440hp GT25 Turbo Fri, 26 December 2003 02:22 Go to previous messageGo to next message
Hard to guess but with an A/R of .70 it is more suited to a 2L so expect full boost around 4000 rpm
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krayzie
Regular


Registered:
April 2003
 
Re: 440hp GT25 Turbo Fri, 26 December 2003 03:57 Go to previous messageGo to next message
Thats what I was thinking it was going to be. Im kind of used to a bit of lag though I had a IHI VF22 on my WRX and boost only starts about 3 grand and pulled hard all the way to the rev limiter.

Does anyone know/estimate what kind of power I would be getting with this turbo on a 4agte?


Cheers
Andrew
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celicaboy_2000
Forums Junkie


Location:
Lismore, NSW
Registered:
February 2003
Re: 440hp GT25 Turbo Fri, 26 December 2003 12:03 Go to previous message
Hey, My mate's got a 4AGZE with a T28 Ball Bearing turbo instead off the supercharger and it hits full boost just after 3000rpm. Dont know if thats any help to you...
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