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Power Strokes
7.3 Aftermarket
Another T4 thread
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[QUOTE="KCTurbos, post: 1472638, member: 13852"] Just curious how many guys are running a mechanical drive pressure gauge? And seeing what the turbo actual does. Most guys don't realize that the 7.3 and 6.0 ebp sensor only reads up to 40psi... 54 absolute. So it always looks like it runs 1:1 because no one can read higher than 40psi So I have not seen much data from guys running an actual drive pressure gauge gauge. I have done a TON of testing on the 6.0 and the results were pretty surprising. With a 364.5 74/.91 you can throw that 1:1 ratio out the window once you get up around 2900rpms. By 4000rpms it runs about 2:1 with 38psi of boost and 75psi of EBP (it reads higher on the street than the dyno) It is a little applies and oranges because the 6.0 spins higher rpms, but also has much less displacement. The other factor is the 6.0 guys run smaller housings. They love the .91 t4 housings. But my question still stands. Does anyone monitor these turbos on a 7.3 using an actual drive pressure gauge and have any data? Here is a video for anyone interested. This was a 6.0 running 205s with the 364.5 on the dyno. Made around 630hp. Check out the gauge in the bottom left corner. Boost is green and EBP is red [url]https://youtu.be/34CkE5DCluc[/url] [url]https://www.youtube.com/watch?v=34CkE5DCluc&feature=youtu.be[/url] [/QUOTE]
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