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How does a Hi Speed Bypass work?

12K views 26 replies 14 participants last post by  Dyno Dave  
Yes I have experience with the diaphragm style high speed bypasses.
They have the original one and the irl one. These high speeds tend to safer.
I recommend utilize these over the poppet style. Kinsler dealer here too.
High speeds are utilized to help assist maintain a correct fuel ratio to air , instead of going rich.
Mechanical pumps push more volume of fuel as rpm increases/ pressure is from upstream restriction( barrel valve, nozzles, main jet and high speed)
Thanks for the reply Dave. How do the 2 Kinsler compare to each other? I see the one (irl) is considerably more money than the other. I started getting a handle on our natural aspirated engine using a poppet type at the end of the year. I am using a RP with EGT, O2 and a pressure sensor in the distribution block for the nozzles.

Thanks
Tom