As some of you know, we’ve been working hard integrating the TVS family of superchargers to 2ZZ Engine and our Lotus. The TVS blower is the new twin vortices blower from Eaton to replace the more archaic technology that most of us are running found in the MP-62. The results are simply fantastic!
These new blowers are VERY efficient and are even exceeding the efficiency envelope of the infamous Lysholm twin-screw! -eek- We’ve been experiencing performance on par and exceeding that of any air-to-air intercooled MP-62 supercharger system on the market with our NON-INTERCOOLED TVS system. The TVS is so efficient that charge temps and parasitic drag drop enough that at just 10psi boost, with a conservative timing map and properly rich AFRs, we’re seeing about 275wheel horse power and 175 wheel torque!:evil: :shift:
Comparing charge temps of our original setup with 10psi on a non-intercooled MP62 Katana base to our non intercooled TVS there is a drop by approximately 60+*F at peak load and full heat soaked conditions and over 100*F lower off load. Temperature recovery is much faster on this blower from my data logs. That means that when not under full load, temps drop faster and the unit cools faster, which mean an even greater *average* drop in temperature from the MP 62. Parasitic drag also drops with this unit. Another interesting note is that it’s whisper quiet as well…
Ultimately, we were able to get MP62 intercooled performance (better actually) without all the complex plumbing, weight, and throttle lag of the intercooled systems available today (both OEM and aftermarket).
Better news, yet!! This is the upgrade I think we were all waiting for (I certainly was)!:nanner: I worked very hard to ensure that this is a direct bolt on upgrade to the MP-62 based, non-intercooled, supercharger kits available today (BWR and Sector111’s Katana)! That means you won’t have to completely scrap all the hard earned dollars you spent on your first kit, as many of the bits are reused with our new system. You may even be able to sell your original MP62 to help recoup some cost.
We machine the TVS blower housing to fit the Lotus 2ZZ on our CNC mill, make custom pulleys, and adapter plates to fit the two manifold systems on the market today, and mill the bracketry from solid billet steel.
I'm obviously very excited about this. If the interest is there, we’ll work with existing vendors to bring this to the market as an upgrade and/or entirely new kit to the market.
TVS Information (from Eaton’s website): The Eaton Twin Vortices Series or Eaton TVS™ is a patented supercharger design that features twin four-lobe rotors, twisted 160 degrees. By comparison, the original Eaton supercharger features three lobes twisted 60 degrees. The fourth lobe and added twist, when combined with redesigned air inlet and outlet ports, creates a smoother, more efficient flow of air into the engine. In addition to improved overall efficiency, the Eaton TVS supercharger has improved noise and vibration characteristics as well. This is the same family of blower found in the new ZR-1 Corvette and CTS-V
The two dynos below are simply in two different scales. One shows the torque curve better and the other has "forced scaling", which how most dynos are posted... The CAD drawing is the alternator and blower support and the others are my engine bay...