RIGHT CLICK SAVE-AS
http://cs.widener.edu/~epanek/FR%20Manifold%20Test.mpg
RIGHT CLICK SAVE-AS
Javier from Full Race originally posted this at
http://www.wakesports.com/full-race/...&st=0#entry875 but I am not sure if TR will allow this link.
RESULTS: SWAPPING MANIFOLD = ~68.3 whp peak gain before tuning, ~48 whp after tuning, ~49.7 ft/lb before tuning, ~44 ft/lb after tuning
We recently conducted a complete test detailing every possible aspect of the manifold experiment. Using a Stock GSR bottom end, with a JG intake manifold and Full Race Stage 3 turbo kit with 10 psi wastegate spring, no boost controller connected.
Full Race fabricated a traditional log manifold which placed the tubine flange and turbo in the EXACT SAME spot as our ProStreet manifolds. The purpose of this is that we were able to swap manifolds without even having to pull the turbo off of the car. As a result, we used EVERYTHING the same, except for the manifold. same turbo, same wastegate, same downpipe, same exhaust, same intercooler, same oil lines, same EVERYTHING.
We videotaped the test for anyone who needs to see it. Time lapse, done by evan (eluder200k). This video is taken for 1 second every 30 seconds. For anyone who doubts us, we will be happy to post the video.
The results were quite astonishing, but do make a lot of sense. The log manifold spooled the turbo about 250-300 rpm SOONER than the equal length. From ~4700 rpm on the log manifold couldnt even come close.
The solid line is the log manifold, the dotted line is the equal length manifold
pics of the log manifold used
pics of the FR kit
