Originally posted by paulclaude
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Thanks for your reply.
Okay, looks like EAS Dyno is using 2 large and 2 small fans.
The second guy (driver side) fan which is shooting air directly to the Air filter, ones I
did this exact location and direct air to the air filter with the same exact fan and that
pass was ~3-4 RWHP more than other passes. The more forced air is pushed inside
the air box the more oxygen will be in % which is resulting little power gains.
Yes I am aware of the fact that you are abroad, but you know, till you upload the file
online engine must be off etc, re flash etc and the fans stay on and few
degrees on the water temp and few on the oil cooler and then ones you start the
engine the chilled fluids rush and cools down the block head and chamber then that
will be strongest pass, so basically what I was asking on the hot passes is about 345ish.
The dyno I do all of my work is using exact the same large fan as seen in the back
at EAS but it's only 1. So I am missing 3 fans. For sure if I put our S54 at EAS will maintain
the 354 +/- exact what you experienced.
A single fan is not enough to simulate let say 80-90mph air pressure build in the front
nose and specially with the unique S54 radiator ducting design, also the unique air
ducting to the air filter box.
As long as CR is good, leak down is good, Camshaft in the proper location, vanos as
well we should see strong result. In S54 engine design there are several
factors must be in a good order otherwise results are not as expected.
How random this is the S54 I put together makes exact 348RWHP as well.
Regards,
Anri
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