Converters And STR
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Converters And STR
I have yet another converter question:
When it comes to STR is it better to have a higher or lower number? I know that the higher the STR the higher the amount of torque is, but is that necessarily the best for a street car? The reason I ask is I am stuck between two converters both of which are 3600 stalls but one has a STR of 1.86 while the other has a STR of 2.5.
When it comes to STR is it better to have a higher or lower number? I know that the higher the STR the higher the amount of torque is, but is that necessarily the best for a street car? The reason I ask is I am stuck between two converters both of which are 3600 stalls but one has a STR of 1.86 while the other has a STR of 2.5.
#6
There might be more to it. My converter builder told me about pump (impellar) fin exit angle and stator blade count and fin angle.
The way I understand it the stator has the most effect on STR and converter feel as far as tight or loose, and pump fin exit angle will fine tune that feel. I may be wrong on this but I watched him restall my converter with a different stator and pump with a positive fin angle and it went from too loose to just right.
If you're into cutting open junk converters you can use this chart to get a better idea of whats what. http://www.sonnax.info/announcements/STALLCHART.pdf
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