I came across this thread and was curious if a dual plane intake with E85 is better than a single plane intake. Now lets say you shift at 5500 to 5800 and the car is drag car only. Given that its a drag car typically its better to go with single plane. The article compared a regular intake manifold to a tunnel ram and with E85 the regular intake gave 18 more hp compared to the tunnel ram. The OP thinks its due to the heat crossover heating up the e85.
Has anyone tested on their engines with E85 and seen any difference between a single and dual plane intakes? Also, if a dual plane is better I don't think the air gap intake has a heat exchange crossover so I guess a regular dual plane is better for e85 (based on article evidence).
Dyno test - std Performer beats tunnel ram
