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max psi on bottomend?

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Old Nov 11, 2006 | 11:13 PM
  #1  
SRWHAT's Avatar
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Question max psi on bottomend?

What psi can you safely run, and occasionally play with on a stock SR with basic bolt ons (e/i)...I am installnig a BC and am wondering what would be a safe setting boost wise for playin? something to be safe and conservative, but not too granny?
Old Nov 12, 2006 | 06:31 AM
  #2  
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Boost doesn't really have that much meaning.....what really matters is total airflow.....

For example, on a T25, the turbo is inefficient after ~14 psi or so...and will probably fail eventually. However, with a larger turbo, you get the same airflow to the engine (and thus horsepower output) with less boost.

For the T25, I would say keep it below 14-15 psi if you want it to last.

Also, bottom end is typically good for up to ~400 hp or so....

Someone please correct me if I am wrong
Old Nov 12, 2006 | 10:30 AM
  #3  
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yeah im pretty sure the stock SR T25 turbo isn't meant for cranking too much boost and will definitly wear itself out after 13-15psi
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