SkyWriter Posted September 15, 2006 Report Share Posted September 15, 2006 Neglecting the ineffectual scams on ebay. There are serious applications for electric superchargers like the manufacturer noted below.http://www.turbomagazine.com/tech/0406tur_...c_supercharger/there are certainly other way to acheive similar power, but that's not the point of the thread.i wonder what it would take to fab a OTS belt driven supercharger in tandem with the turbo, Link to comment Share on other sites More sharing options...
WhiteT5 Posted September 15, 2006 Report Share Posted September 15, 2006 Holy crap, 93 hp from an electric supercharger?!?! Link to comment Share on other sites More sharing options...
turbor850 Posted September 15, 2006 Report Share Posted September 15, 2006 interesting, i wonder how much it costs for all of that Link to comment Share on other sites More sharing options...
ajhehr Posted September 15, 2006 Report Share Posted September 15, 2006 Holy crap, 93 hp from an electric supercharger?!?!Cool but... Link to comment Share on other sites More sharing options...
SkyWriter Posted September 15, 2006 Author Report Share Posted September 15, 2006 interesting, i wonder how much it costs for all of thati expect it's expensive, but you're getting boost at low RPM without putting a load on the engine. it's a beneficial circumstance albeit quite transitory. one also has to consider the weight of the 48 (ideal) volt batteries, perhaps a fuel cell technology is apropos. Link to comment Share on other sites More sharing options...
dmelviØØ7 Posted September 15, 2006 Report Share Posted September 15, 2006 What about the draw off of the alternator? Link to comment Share on other sites More sharing options...
tm_94altima Posted September 15, 2006 Report Share Posted September 15, 2006 18s in a stock Altima. That is pretty bad. Stock I ran 16.5. Sorry to get OT. Link to comment Share on other sites More sharing options...
paulr Posted September 15, 2006 Report Share Posted September 15, 2006 As RPM's (and therefore CFM) increased, your boost go down with a static-RPM SC like that.Alternator load would be a valid point were you running these all the time, but I get the impression this is supposed to be something you turn on for short bursts IE dragsters. Just like Electronic Water pumps. These are definetly better than the Ebay ones, but I can think of a scarce few applications where a belt-driven supercharger or a turbocharger wouldn't be better in every way. I actually looked into similar products from the same MFR for a Diesel Generator, but decided that the power requirements and cost weren't worth the benefits...They're a nice idea, but the technology still isn't here...Regarding a turbo + super setup (twincharging), they're very messy systems that aren't worth the headache in 99.9% of applications. You could get more topend power with a bigger turbo (which would be easier, and probably cost less) and our cars have a hard time putting power to the road / not bending rods at low RPM's anyway... With a twincharger setup, all you would do is spin your wheels or bend rods, unless you completely rebuilt everything for track drag racing. I'm actually in the process of researching / designing a twincharger setup for the Jag, with a turbo feeding into the supercharger. Basically using a roots SC as a "Pre-Compressor" on the engine. The more common systems, which use the outputs of the SC / Turbo in tandem, are even harder to set up and tune, and are a remnant of the time where turbo lag was much more than it is today... Trust me, it's not a wise idea, especially on these cars. Link to comment Share on other sites More sharing options...
SkyWriter Posted September 15, 2006 Author Report Share Posted September 15, 2006 What about the draw off of the alternator?pretty bad that's why i'd like to take the charge logistics off the table.it seemed conceptually simpler to use in a turbo/super-charged system with a low duty cycle in 'whomp mode' i have a T6 so the the bi-furcated charge air plumbing gives me ideas of twice the airflow at the same boost. i don't know, seems like there's something to exploit there. Link to comment Share on other sites More sharing options...
SkyWriter Posted September 15, 2006 Author Report Share Posted September 15, 2006 I'm actually in the process of researching / designing a twincharger setup for the Jag, with a turbo feeding into the supercharger. Basically using a roots SC as a "Pre-Compressor" on the engine. The more common systems, which use the outputs of the SC / Turbo in tandem, are even harder to set up and tune, and are a remnant of the time where turbo lag was much more than it is today... Trust me, it's not a wise idea, especially on these cars.very true. practicality aside it's interesting to analyze a legitimate application of SC/TC instead of laughing at the ebay hairdryers certainly they're going to be hard to tune up. but turbo lag is turbo lag, a small turbo fixes in at low RPM's but pretty much runs out of steam after that. i would lke to find a roots type SC for the T6. Link to comment Share on other sites More sharing options...
fromtheshadows Posted September 15, 2006 Report Share Posted September 15, 2006 I believe I saw an ad for one for about 3 grand...I think it was in sport compact car magazine and I checked out the website and said "ouch" Link to comment Share on other sites More sharing options...
paulr Posted September 15, 2006 Report Share Posted September 15, 2006 Well, After your rebuilt your tranny to handle the torque (those go first on the S80's I believe)... You might need to do the rods too, especially if they're similar to the ones in the 850's. However, you'd still be limited by FWD, so you'd have an issue putting the torque to the road off the line. However, assuming you got past all of that...As I assume you know each of your turbos goes to 3 cylinders... Not like other types of "Twin turbo" setups where they kick in at different power bands. This by itself decreases overall turbo lag, because they're smaller units, and can spool quicker.When you tie together the output of the SC and Turbo's - you have several issues. First, your SC has to be designed such that your boost won't leak out of it when it's not active. Second, the positive pressure can leak backwards out the turbo in the same way, and even then, it will slow down the spool-up of the turbo even more, as it has to build boost against positive pressure... Then, once you get all that sorted out, you have to actually get the ECU tuned to that mess of air-pressure.Sure, it would give you more low-end, but for that much work, you could probably convert the Darn car to RWD and drop in a smallblock... Or build the engine real strong and hit the nitrous off the line... Really, it's the wrong idea for the wrong car. Chip it and have it be a nice highway car, and hope you don't kill the tranny. Link to comment Share on other sites More sharing options...
SkyWriter Posted September 15, 2006 Author Report Share Posted September 15, 2006 I believe I saw an ad for one for about 3 grand...I think it was in sport compact car magazine and I checked out the website and said "ouch"for the roots SC? 3 grands in the ballpark. if you find it i would be interested in checking it out.thanks!Sky Link to comment Share on other sites More sharing options...
fromtheshadows Posted September 15, 2006 Report Share Posted September 15, 2006 www.boosthead.com Thomas Knight. Ive heard they work, but Id rather just get a good nitrous kit as theyre designed for short runs(batteries) Link to comment Share on other sites More sharing options...
fromtheshadows Posted September 15, 2006 Report Share Posted September 15, 2006 Crap I just realized that was the article you posted, my bad Link to comment Share on other sites More sharing options...
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