Interested in a kit for a non-SC'd Elise.
Next Generation in Supercharging Means 275whp!
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...
Best,
Phil
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...
Best,
Phil
Attachments
41 - 60 of 2085 Posts
Thanks for update Phil. Are you stopping at 300 whp because of chassis or something else?
Bring it out to CA so you can run on some tracks with me
Bring it out to CA so you can run on some tracks with me
Would love to come out, it's only 20 hours or so drive!Thanks for update Phil. Are you stopping at 300 whp because of chassis or something else?
Bring it out to CA so you can run on some tracks with me
How about you bring your car to KansasThe 300whp is just a guess... I'll add power until the charge temps start climbing out of control... The 4 lobe twin vortecies simply move air so much cooler/efficiently than the M62, that I'm hoping I can keep charge temps below 200F at even 12-14psi in 70 degree environment and fullly heat soaked (or atleast as much as I can get without being ont he track). If I can't hit 300 w/o an IC, then I can't- no big deal. The car is quite quick
and very responsive as it sits with only 10psi boost...The M62 would certainly have been in the 300*F charge temp arena at that 12-14 psi pressure (using my equipment), as it was pushing 240+ at just 10psi with ~70 degree temps. The TVS is only pushing 175 at 70 degree temps and it has less drag (drag: as advertised by the manufacturer, I have no way to substantiate this...)... Again, both in fully heat-soaked states. I'm only looking for a delta T here, as everyone's sensors seems to give different readings....
Thank goodness for a climate controlled dyno room. Winter is coming into the midwest! I'm relentless on the rollers. I drive the car hard before I get to the dyno and then do several pulls back to back without shutting the car down. I tune with the car idling every two pulls typically. Then pull a couple times and tune again. The guys at the dyno said I've got the second most pulls of all their customers, just short of the owner... That's hillarious... I think I'll get him knocked off his horse by next weekend
Back on topic, fortunately, I've got sensors all over the car and data logging ability, so I'll be able to see these temps very accurately as I strive for a track safe 300whp on a non-ICed TVS... I've got my glass half full, as I think it's doable without pushing it too hard
anic:Best,
Phil
Don't forget - I did it in 17...without any boost.Would love to come out, it's only 20 hours or so drive!
Best,
Phil
I'd drive to Kansas for this...
Hehehe, we need to fix that boost problem! How about on Sunday
Would you like directions?I'd drive to Kansas for this...
What brings you to that conclusion?
Best,
Phil
Thanks for the kind words Smoky:up: Stock 2ZZ has excellent head bolts and gakets- no problems there. Lower end and pistons should be fine. That said, the pistons are known to be the weak link in this engine...
Effective compression ratio is still just over 19:1 and that's still within the reasonable range for a high-tec, high output engine on pump gas. Several S's and even hotair M62 kits (like the one I used to have, Dave, Jim, etc) have built a pretty solid history of running this type of compression on this engine with pump gas. We'll be doing it with cooler charge temps now, however...
Stock- Although I've got a slick litte trick that I'll post about later to give your fuel system a nice bump in output...
Thanks Eric!
I guess. If I can shoe-horn it in such a way that it fits the Exige S, it will fit the Elise with those same manifolds...
You guys are wearing my fabbing fingers to the bone here!
Best,
Phil
But Phil, it's sunny and 80 degrees here in SF/Bay Area and it's gonna be 90 when I go to SoCal tomorrow ... ugh!! Yeah, it's November, I know. Besides, I don't think the Kansas locals will like seeing CA plates in their state Oh, and we have many road courses to choose from - I can think of 6 right now (Willow Spring, Fontana, ButtonWillow, Infineon, Laguna Seca, Thunderhill), sure there are more.
Oh, and we have many road courses to choose from - I can think of 6 right now (Willow Spring, Fontana, ButtonWillow, Infineon, Laguna Seca, Thunderhill), sure there are more.41 - 60 of 2085 Posts
