This is topic Most boost youve ran on an A-trim? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 91 5.0 (Member # 1527) on :
 
Topic says it all. What size pulleys were you using with the combo to acheive your boost levels. And at what RPM?
 

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Posted by Blown Mystic with a POS 90 ranger (Member # 476) on :
 
you can figure out what is safe by calculating impeller speed.
 

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Posted by hidnn.o.s. (Member # 1219) on :
 
I HAD an A trim on my 93 convertible that was BONE STOCK through the cats with the exception of a 255 in-tank. Made a nice power pipe and saw 10 psi average and spike as high as 11 at times. Don't know what the pulley sizes etc I had on it.
 

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Posted by TM88GT (Member # 105) on :
 
With 8-rib pullies (3.33"/6.87"), and a powerpipe, I made 8psi at 5800 rpm.
 

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