Double turbo blower v8

[mr2peak]

Relevant YouTube link:

https://m.youtube.com/watch?v=11687nVdzdk

But in all seriousness, there's a reason he used the helicopter turbine with a dual-fuel system. A home-made turbo based jet engine won't keep up with the required flow at high-rpm. It's also wildly in efficient compared to a properly engineered helicopter turbine.

[jalopi]

^-- that's the video i was originally looking for

while i can't argue that an actual turbine engine is probably vastly more efficient than anything i'd ever build (and if i had the connections that dude has to get one for a reasonable price i would definitely go that route), i dunno about failing to keep up with necessary airflow though. regardless of how inefficient the burner is, the turbo itself is still efficient at moving air given a certain turbine RPM. considering i've seen plenty of youtube DIY turbines hitting speeds of 150k+ RPMs i don't think airflow/RPMs will be an issue

on that note though... anyone know where i can get a heli APU for a reasonable price? :)

[mrsleeve]

why do you have to use a turbine why not use a electric driven set up so you have greater control and power it up only when necessary

[kickinindian]

im just wondering what the exhaust set up in gonna look like your gonna have your normal exhaust then the bunch of plumbing and second exaust im guessing a side dump pipe? its gonna look like a sewer system in there! but do it!

[jalopi]

why do you have to use a turbine why not use a electric driven set up so you have greater control and power it up only when necessary

not sure what you mean... like, an electrically driven compressor? i mean, as far as safety goes it sounds 10x better. now i don't know much about electric motors, but from what i do know the kind of motor that would have enough power to turn a compressor shaft at the right RPM (i'm not assuming direct drive, but an insanely overdriven sprocket setup) would still be a massive power hog.

do you know much about electric setups? because i'm all ears, this sounds interesting, albeit not as cool as my original idea but much less of a chance of burning my car to the ground

im just wondering what the exhaust set up in gonna look like your gonna have your normal exhaust then the bunch of plumbing and second exaust im guessing a side dump pipe? its gonna look like a sewer system in there! but do it!

the jet engine would be in the trunk, feeding the turbo which is also in the trunk. the turbo exhaust, i figure, could dump right next to the license plate or something

[kickinindian]

Ah well I guess that would work, keep on keeping on you crazy bastard!

[Massimo]

[jalopi]

yep i've seen that guy before, dude's channel is fucking nuts. he does have some good videos on the math behind making the combustion chamber though

[rwh11385]

not sure what you mean... like, an electrically driven compressor? i mean, as far as safety goes it sounds 10x better. now i don't know much about electric motors, but from what i do know the kind of motor that would have enough power to turn a compressor shaft at the right RPM (i'm not assuming direct drive, but an insanely overdriven sprocket setup) would still be a massive power hog.

do you know much about electric setups? because i'm all ears, this sounds interesting

http://articles.sae.org/13421/

http://www.autoblog.com/2014/08/08/audi-electric-turbocharging-feature/

http://jalopnik.com/5855317/will-bmws-electric-turbocharger-end-turbo-lag

[TurboJake]

The turbo turbines, use a SHITLOAD of fuel. Whether it be diesel, gas, or propane, as you've mentioned. It'll never be economical as you're creating a shitload of excess, and wasted heat. Heat is that energy just vanishing into thin air, being marginally used.

So I'll just put this here. a TKT ESC-550 for $2.5k. Instant, electric boost.



Uses 15,000 watts, a car battery lasts 15 seconds, and it makes only 10psi (On an engine at about 3 liters), while still (somehow) making a shitload more sense than this idea.

[george graves]

How big is a motor cycle motor that makes 20-30 HP? That's what I would do to drive a super charger if I wanted to do something really weird.

Actually, truth be told, I'd be more interested in using a set of Prius batteries(they are only like 200 pounds or something), and a electric motor in series with the stock drive shaft for a "boost" knight rider-style button. That could be a fun project if I had nothing to do.

But with all that work I might as well buy a '57 speedser kit, and convert it to electric. 1500lbs. You get an amazing car that chicks drool over. 60-150 mile range(deepening on how many batteries you want). Acceleration up the wazooo. Faster then most e30s on this site I would think.

[jalopi]

so i think i found a way to make my idea happen without simultaneously setting my car ablaze or being majorly inconvenienced just to start it

http://www.jethangar.com/Wren/wren.html#mkIII

it's got an automatic starter so i don't have to fuck with a leaf blower AND it's a much smaller package than what the DIY jet engines are like. The only downside is the price (about $2200) but when you add in the cost of a decent journal bearing turbo you're still sitting at half the price of something like a magnuson supercharger for the same level of performance

all i have to figure out is whether 500-600 CFM of hot air is enough to for most turbine housings/wheels to get up to proper speeds though

[Old city bimmer]

wow..that little set up there is small in size.

[deutschman]

There is actually a guy, I think it was in England, who had a small helicopter turbine that provided spool up energy for the turbo on his hill climb car.

Every once in a while, when looking at no holds barred race cars there comes the engineering equivalent of a facepalm moment. It's that second where we wonder 'Why didn't I think of that?' Like when we discovered how Nic Mann's record-breaking hill climb racer uses a turbine engine from a helicopter auxiliary power unit to drive a turbocharger feeding the 1.7-liter Cosworth four-cylinder a constant stream of boost. To eliminate turbo lag, Nic hooked the turbine to the impeller side of the remote turbo, which can feed the engine at up to 43 PSI. Bonkers is one way to describe it.This of course completely eliminates turbo lag from the compressed intake air routed to the main drive engine. The hybrid engine is hooked up to an even stranger contraption behind it — a Ford Sierra powertrain. The car uses the all wheel drive and transmission from a lowly Sierra, albeit beefed up quite a bit. Unfortunately this has been the weak point in the car and Nic is considering swapping out the internals on the MT75 for Borg Warner T5 bits to avoid the breaking. Currently the car makes around 400 HP at 23 PSI of pressure, but plans are to ramp that up to 43 PSI and up the insanity. The video above shows the car in action during hill climb racing at Gurston Down in old Blighty. Also featured in this video is a positively bonkers Ford Puma with a tube chassis and carbon fiber body with a twin turbo Cosworth engine. It'll do 0-to-60 MPH in 1.8 seconds and the quarter mile in 9.45 seconds. Pick your jaw up and watch the video, make sure your speakers are turned up during the race footage. For more details on Nic Mann's Manic Beattie Hillclimb Car head over to Race Engine Design and read up. (Hat tip goes out to Rust-MyEnemy) [youtube]

[jalopi]

yup, that dude was mentioned earlier in the thread somewhere

not only are the RC airplane versions smaller and more efficient (packaging wise and i think to some degree more fuel economical) but since they come pre-equipped to run diesel/kerosene/AP1 they inherently get better fuel "hourage" and i won't have to go through so much fuel at the track or have a big ass fuel tank

an added bonus is that since i think i'm gonna have my new car be aircraft themed (paint it fighter jet grey, do a shark on the fenders, replace the quarter window glass with scoops to feed the turbos & intercooler) i can put a separate gas cap/lid somewhere on one of the quarter panels and label it "JET FUEL ONLY"

trolololololol