Quote:
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Originally Posted by GOVCO
What a BIG difference between ESS VT kits. Did not
realize it would be that big of a difference. Love it! Good luck
with the build. Can not wait for the end result. Would also love
to see a comparison of the AA Stage 2 vs. ESS VT625. Now that
would be a good shootout.
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If you're curious about these things, then you should go look at
the Dyno Database (
www.bmwdynodatabase.com). Here's a few entries
for you. These are all independant dyno results, not vendor
entries.
The first few are taken from the same exact dyno:
AA Stage-2 +Meth @ 7.7 PSI: 465whp, 334wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=326
ESS Stage-1 VT1-535 @ 5.6 PSI: 472whp, 310wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=332 (This dyno was
taken exactly 24 hours after the dyno above. Identical
conditions.)
Different dyno, but same California 91 octane gas:
ESS VT2-625 +Meth @ 7.15 PSI: 586whp, 379wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=320
ESS VT2-650 (no Meth) @ 9.0 PSI: 604whp, 386wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=357
Here's a few entries taken from back east USA. Should be the same
gasoline however.
AA Stage-2 +Meth @ 7.5 PSI: 501whp, 355wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=316
ESS VT2-625 (no meth) @ 7.4 PSI: 594whp, 381wtq.
http://bmw.pencilgeek.org/showDyno.php?recID=310
I hope this helps.