Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

How much PSI can the WRX Take

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Old May 20, 2003 | 03:14 PM
  #46  
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LMAO!!!

to n00bs who haven't got a clue what they're talking about.
Old May 20, 2003 | 04:05 PM
  #47  
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Originally posted by Steppin Razor
LMAO!!!

to n00bs who haven't got a clue what they're talking about.
LOL

W3RD
Old May 20, 2003 | 05:31 PM
  #49  
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Pretty much dude. Hot, lean, and rich are all bad. The intercooler will actually work with a bigger turbo though. It's the turbo's fault the temps go up. The intercooler gives the same absolute temperature drop, it just starts higher when it enters the IC.
Old May 20, 2003 | 06:40 PM
  #51  
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Originally posted by BAN SUVS
Pretty much dude. Hot, lean, and rich are all bad. The intercooler will actually work with a bigger turbo though. It's the turbo's fault the temps go up. The intercooler gives the same absolute temperature drop, it just starts higher when it enters the IC.
Exactly. A larger turbo will NOT necessarily make the air it compresses any hotter than a smaller turbo. If the larger turbo is operating in its optimal range it will compress the air efficiently, thus creating charge temps that are totally in line with what the ECU is expecting. It's when you get outside of the turbo's efficient operating range that the turbo itself heats up due to friction in the bearings and causes too much heat to be imparted to the air going through it. So the heat caused by compressing the air is not necessarily what we're worried about, it's ensuring that the turbo being used is in its efficiency range to prevent the bearings from overheating. The stock intercooler, while not spectacular by any means, does a very good job for a stock piece and is not a bottleneck or restriction until you are running (and this is a total guess on my part) over 350 HP at the crank. Of course adding a larger intercooler will lower charge temps but there's always the tradeoff of more lag as the turbo has to compress all the air inside that huge intercooler before it can pressurize the air going into the cylinders.
Old May 21, 2003 | 01:22 AM
  #52  
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which turbo would you recommend for 300awhp w/ the lease lag?
also would a sti tmic be enough for that or would i need a larger one.
Old May 21, 2003 | 12:31 PM
  #54  
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Originally posted by 240sxer
which turbo would you recommend for 300awhp w/ the lease lag?
also would a sti tmic be enough for that or would i need a larger one.
Ed can probably give you some good info on that. Also try mimicing the Vishnu stage III setup.
Old May 21, 2003 | 02:35 PM
  #56  
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Originally posted by axxe
originaly posted by BAN SUVS

I posted that to be a wise *** comment to try and show some people up how to answer this question themselves. I too am pounding my head into the keyboard. This topic is dead. Someone should start a GP on the Delta Dash so everyone can watch their own numbers and answer this for themselves.
Oops, I should have seen that. Once Tim shows up though, everyone else is playing the straight man.
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