Whipple Supercharger
I searched, and didnt find any useful info.
Does anyone offer a Whipple SC kit for the Exige?
Ragnorak was going to sell a kit, but their website is down
http://www.ragnorakracing.com
Anyone?
:shift:
Does anyone offer a Whipple SC kit for the Exige?
Ragnorak was going to sell a kit, but their website is down
http://www.ragnorakracing.com
Anyone?
:shift:
1 - 20 of 24 Posts
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Generally yes. I have a Whipple on my XP autoX car. The new TVS looks very nice in that it has a wider efficiency island than the whipple which seems to show in the temp data. This thread has info on the TVS:
http://www.lotustalk.com/forums/f160/next-generation-supercharging-means-275whp-64669/
http://www.lotustalk.com/forums/f160/next-generation-supercharging-means-275whp-64669/
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Word :up:
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FDCT? Rad!:evil:rotfl
Actually, the lysholm/Whipple is a screw-type with an internal compression i.e. the air is compressed between the screws and the threads of the screw get tighter as you move from inlet to outlet. The tolerances are much tighter than those on a traditional roots so they can support a higher pressure-ratio(boost) vs. a traditional roots.
The TVS is based on roots but has the twist of a screw, 160 degrees, additional lobes, and constant screw-pitch. The tolerances are also very tight, which adds to the efficiency. I believe this was done to avoid patent infingement with Lysholm.
Looking at the compressor maps for both, the TVS looks to have similar overall efficiency, BUT larger highest efficiency island. They look to be largely the same from a performance standpoint.
In the interest of full disclosure, my XP car has a Lysholm/Whipple. My street car, hopefully will soon have a TVS.
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Of course. I was specifically speaking of the 1.2L Lysholm and 1.2L TVS, as the 2300 and 140ax are about 2x too large for the 2zz. Based on the compressor maps I've seen for the smaller 1.2L units, the differences are largely in the noise. I have a 1.6L Lysholm, unfortunately there was not a good TVS option available at the time I made that decision.
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They're based on the same tech though, they're mostly around the same for all intents and purposes, neither one is drastically better than the other, i've yet to see a conclusive technical study thats shown one outperforms the other by any decent margin.
I haven't seen the same figures from eaton on the tvs as from lysholm either, they've been a little bit less forthcoming on some of tests and how they were done as well as what they're measuring. Lysholm have been off doing other things and haven't really updated it much, i wonder if they will introduce something new to outside world.
I think at the power levels we are looking at there isn't a whole lot of difference. ( Other than cost, but then i don't know the current pricing maybe thats changed too )
I haven't seen the same figures from eaton on the tvs as from lysholm either, they've been a little bit less forthcoming on some of tests and how they were done as well as what they're measuring. Lysholm have been off doing other things and haven't really updated it much, i wonder if they will introduce something new to outside world.
I think at the power levels we are looking at there isn't a whole lot of difference. ( Other than cost, but then i don't know the current pricing maybe thats changed too )
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Perhaps you missed the comment from my earlier post.
"They look to be largely the same from a performance standpoint."
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Not at all, i was just adding my own POV to it, as well as the additional points.Perhaps you missed the comment from my earlier post.
"They look to be largely the same from a performance standpoint."
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Whipple Speaks
Here is a reply from the actual whipple screw SC manufacturer
"A roots type blower uses 2 male rotors with the same amount of lobes on each one. A Screw type blower has 1 male rotor (lobes) and 1 female rotor (valleys). The screw type rotors have a higher helix (twist) to where it looks like the threads of a screw, thus the name. The screw compressors have better efficiency than a roots blower because of this. We can run higher boost levels with lower charge (air intake) temps than a roots can"
The whipple screw sounds like the ultimate SC, so lets get one on a lotus and see.
:shift:
Here is a reply from the actual whipple screw SC manufacturer
"A roots type blower uses 2 male rotors with the same amount of lobes on each one. A Screw type blower has 1 male rotor (lobes) and 1 female rotor (valleys). The screw type rotors have a higher helix (twist) to where it looks like the threads of a screw, thus the name. The screw compressors have better efficiency than a roots blower because of this. We can run higher boost levels with lower charge (air intake) temps than a roots can"
The whipple screw sounds like the ultimate SC, so lets get one on a lotus and see.
:shift:
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