Maker of twin-turbo kit for Corvette claiming massive (167%) city MPG increase.
Via GreenHybrid ...
http://www.greenhybrid.com/assets_c/...mb-300x199.jpg I don't quite know what to make of this. The claims are so outrageous I was compelled to contact the company for more information. First, the story: Quote:
(FYI, 40 mpg is 167% higher than 16 mpg - that's the figure I'm referring to in the thread title.) The kit consists of twin turbos plumbed into the exhaust under the rear of the car in place of the OEM mufflers, with plumbing to get the PSI back forward to intercoolers up front and then into the engine. The company says the turbos are CARB registered and 50 state legal. http://www.greenhybrid.com/assets_c/...mb-300x199.jpg To try to build some eco credibility, they've given the kit a silly name, in my opinion: "Green Interactive Hybrid System" I wrote to the email address on their site (http://www.neohydrotechnology.com) and asked what exactly made it a hybrid in terms of the general understanding of what a hybrid is in automotive terms: The response: Quote:
I also asked about the fuel economy figures: 1) if they were US gallons (because the company is in Canada), and (2) how they were determined: Quote:
I was also told: Quote:
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:rolleyes:
Doug Palmear must be involved somehow... |
Sounds too good to be true.
Did they tell you the price? There are similar rear-mounted turbo systems available, but they don't claims the mpg figures... |
Rear turbos aren't new.
They turbo it, chip it, and do the standard performance remapping. That's it. There is no hybrid even though they named it "Green Interactive Hybrid System". No batteries, no motors, no hydraulics, no compressed air, no flywheel... nothing hybrid. My understanding of "CARB #s" is that having one doesn't automatically make it street legal. It just means the CARB has identified it. They will be the first tuners in the world to double fe by merely throwing a turbo on. :rolleyes: Well why not. It seems there are no bad repercussions from lying your *** off these days. |
I was editing the post as you guys were reading it. They explained the "hybrid" moniker because... a turbo + a conventional engine = technological "hybridization".
Technically true, but... |
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I saw that.
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There are, oh, a zillion turbo kits listed so that in and of itself isn't special or unique. Oh, I remember what it was about CARB numbers: having one is NOT an endorsement for power or fe increases. It merely doesn't break any laws. |
CARB ID doesn't mean it's legal, CARB EO does. (Exemption Order)
I'm not doubting that there was SOME FE increase, but I think 40MPG city is just a ridiculous thought. Then again, check out that site name: NeoHYDROblahblah.com I bet they're running some HHO in those turbos. According to STS, makers of one of the rear-mount turbo kits, they don't even need intercoolers, and having them gives no performance increase, rather just increasing boost restriction and pressure drop. They did a piece on PowerBlock a few years ago on the STS kits. They were actually quite impressive. |
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Yes, I do find the rear-turbo concept appealing and wouldn't mind having one.
I wouldn't expect any fe increase at all though. If, as CARB says, boost is limited to 6 psi, then according to this boost/HP estimator: Quote:
their claimed increases: Quote:
are rather generous. Well, that would match the generous fe claims too. |
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