Hey guys i have just bought a 92 indy 500SP EFI. I waqs wondering what is the black hose comming out the side of the air box that doesnt seem to go to anything its about 1 -2" in diameter if i remember right. What does this hose do?
It helps the airflow. For some reason the EFI's struggle to get enough air to the mag side cylinder so they added that hose. The reason it's not just a hole is because they didn't want to ingest hot air.
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