-31 v -34
07-04-2007, 09:26 AM
#2
-31 not std on escort s2 but most commonly fitted aftermarket for more boost... -34 has a stronger spring/diaphragm so takes more pressure to operate, used for even more boost... 
07-04-2007, 12:14 PM
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Originally Posted by Mixja
-31 not std on escort s2 but most commonly fitted aftermarket for more boost... -34 has a stronger spring/diaphragm so takes more pressure to operate, used for even more boost...
07-04-2007, 02:07 PM
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think its just the preload thats different, you cant run less than 14psi on a -34 and 7 psi on a -31.
so i think if your running big boost then go for a -34, it has no benifits to the power you run though
so i think if your running big boost then go for a -34, it has no benifits to the power you run though
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