DIYEFI.org Forum

I believe this video belongs here
http://www.youtube.com/watch?v=Bch5B23_pu0

Fred wrote:You mean around the Karussell?

No, from road-ragers

Fred wrote:I enjoy driving, not power. Take your 45psi engine to the nurburgring and see how long you remain alive

That entirely depends on how big the engine is and the size of vehicle surrounding it...I suspect that if I drove a city bus with a 1L engine @ 45 psi I would die from blunt force trauma

Tell that to BMW and Ford who have millions of these setups driving around on the streets :-) Also, being hit by brick walls of boost sounds horrible and life-threatening, I'd rather have just the right amount. Say 10psi or 20psi from 2k to 10k - 20psi is compound ground, just, 10psi isn't. Fred. W...

Yes, I think most people on this site can read a turbo compressor map just fine... I think most people on this site would also rather that they were in the upper right at peak RPM/Boost. If not, you've got something laggier than need be. Which is the entire point of the above design. Minimal sized ...

Yes, you've understood from what I wrote that I don't understand what you've now written. That was a false assumption. What you've written is all true, but in no way negates what I said. Except the part about positive work from the small turbo once the turbine is bypassed, which I'd argue meant you...

I'll add a second post so I don't keep editing the first... Turbo maps are always shown in lbs/min vs pressure ratio, but in actual fact this is only true when the compressor inlet is at standard temperature and pressure. So at first glance, you would think "hey, if I shove twice as much air th...

You would think that the smaller turbine is a restriction and will be overspun, but in actual fact (1) it still performs some work as the wastgate does not divert 100% of exhaust gasses around it, and (2) the volume flow of fresh air through it is pre-compressed and as such the actual velocity of th...

The check valve setup adds unneeded complexity in a compound turbo setup. If they just had the larger compressor feeding the inlet of the smaller compressor it would work just fine. There is no need to bypass the smaller compressor effectiveness-wise. The advantage to the check valve I suppose could...

The output shaft speed sensor tone ring has 24 teeth.