Compound Boost | Yamaha SVHO Jet Ski | Garrett Turbo
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- Опубліковано 24 кві 2023
- An entire new line-up of go-fast fun has been opened with FuelTech forging its way into the jet ski market. Coming off the release of several plug-and-play kits for Yamaha and Sea-Doo models, Anderson Dick gives a look into a wild new project at FuelTech USA. A Yamaha SVHO 1.8L four-cylinder supercharged engine is getting enhanced with the addition of a turbocharger, creating a unique compound boost application.
Compound boost isn’t a new concept in the automotive world and FuelTech has had a few cool applications on its Mainline Hub Dyno. We’ve watched a couple of Pro Import cars produce 2,000 hp using compounded turbochargers. The Yamaha application in this video is slightly different as the compound boost is created by a turbocharger blowing into a supercharger. Anderson walks through the intricate application and explains its virtues as well as proper turbo sizing to create the most efficient and powerful package.
The factory supplied HKS centrifugal supercharger, driven by a jackshaft that is connected to the crankshaft, produces 12 psi at 8,000 rpm in stock form. The stock engine is rated at 250 hp. For this application, Anderson says they’ve modified the supercharger system for durability and push the engine rpm up to 10,000, creating 14 psi of boost in the manifold. Instead of discarding the supercharger or resorting to new impellers for greater pressure multiplication, the team added a Garrett turbocharger with the goal of making 1,000 hp.
FuelTech retains the supercharger because the engine is only 1.8L and it isn’t nearly powerful enough in naturally aspirated form to turn a turbo efficiently to create that kind of power. Anderson shows several turbo compressor maps to illustrate the surge potential of a turbo-only application. By retaining the supercharger and going with the larger Garrett G42 1450 turbocharger, the turbo runs perfectly in the middle of the compressor map-far away from the surge and choke points-and can produce the desired 1,000 hp goal.
Anderson goes on to explain how the compounding works; essentially the Garrett turbocharger feeds 14 psi of boost to the supercharger, which then compresses it more and the manifold sees over 40 psi. If they increase the turbocharger output to 30 psi, the manifold registers 73 psi once the HKS centrifugal supercharger does its job. Without the help of the supercharger, the engine isn’t nearly efficient enough to turn a turbo that size, let alone hard enough for that kind of boost pressure. Additionally, the turbocharger is only generating 30 psi of boost and the backpressure remains 1:1, helping it be efficient on the compressor map. The turbocharger is controlled by an electronic wastegate.
The plug-and-play FuelTech harness allow the addition of an FT550 or FT600 engine management system to the Yamaha engine, giving the user full control. All PowerFT ECUs include sequential injection and ignition, O2 closed loop, Data Logger, Delay Box, and a Pro Nitrous controller for those who want chemical horsepower addition. Adding a FuelTech to your jet ski will also allow a flex fuel option, enabling the engine to run on pump gas, race gas, ethanol, or methanol. The addition of a Nano O2 sensor provides information for the computer and allows the user to make informed decisions on tuning.
Since this is new to the jet ski market, FuelTech has added many classes to its FT Education program. The curriculum is designed for casual enthusiasts to high-level builders that want to learn more about the PowerFT ECU. It is a classroom-driven and hands-on program taught by educators and technical service representatives and anyone can sign up.
From championship winning Pro Modifieds in the pro ranks of NHRA to the local bodies of waters where jet skis provide pure enjoyment, there is a reason you’re seeing #FuelTechEverywhere
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Compound "this is the way"
Volumetric efficiency at its best!!
This is insane power potential!.....I can't wait to tune one of these setups!
Very informative, Anderson!
Great video, great and clear explanation about boost performance. Keep on the great work you do Anderson and FT!
Very informative. I was a two stroke jetski mechanic and I raced them in the early to mid 2000's.
That is still Mind Blowing that VW Boxster style 4cyl engine making a little over 2000hp and since it is in a Pro Mod chassis they should have no problem getting that car to run in the mid 6s in the ¼ mile or faster depending on how light the car is and how the weight distribution is and if it hooks up good and goes and goes straight down the race track and I wonder what transmission is in that car and I wonder if they run that car in the ⅛ mile or in the ¼ mile and I wish that the guy's at Fuel Tech would ask the owners of these cars to come back or send them a video of their best pass up to date after they put the car on the hub dyno and then take the car to the track and dial it in at the track so we can all get a before and after of what the car ran before they brought it to Fuel Tech and after they brought it to Fuel Tech and got the guys to work out and find all the bugs and got the car dialed in and put a hot tune in it and then took it to the track and Fuel Tech would be smart to hire a traveling crew of guys that go to the track with the owners of the car's they put on the hub dyno to help them completely dial the car in at the track so the car can run to it's full potential
This is wild.
You guys are awesome.. keep up the good work, thanks for sharing..
Keep doing more SVHO videos!!! Love it!
Very nice setup
EXELENT EXPLANATION
Exciting!! Let’s see it in action soon!
😮wow u got me looking for a Jetskit already ❤
Very informative, Anderson! Excellent explanation
Wow very impressive, that VW was insane! 500 hp per cylinder 😮
Just saw a ktm 690 single with a turbo running FT550
So they are out there
That's badass!!!
Amazing!!!!!
I like this idea
Anderson, every one is really concerned with the Bosch unit on the new SeaDoo RXP325 with the 1630 ACE. They say it's "not unlockable". Big opportunity there for you guys. If it's not tunable, people are going to be knocking at your door for a stand alone system. Good luck.
Merci beaucoup ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
Damm bro she its solid i love it also invited u to see a video on dyno you gonna love it
Hi.
What internal upgrades did you have to do as well to sustained reliability?
5:55 That is a 54mm turbo map.
Problem with compounds with superchargers is the supercharger parasitic losses are directly related to airflow by MASS through the charger. Still an awesome setup! Running compound turbos myself I always love to see staged compression of any kind!
Are you trying to say that the mass of the air flowing thru a supercharger is what causes its inherent inefficiency?
@@pastaalalamborghini yes. Almost completely decoupled from pressure ratio too. If you check out the Steve Morris video where he hosted the TorqueStorm designers, they do a dyno session with a fixed bleed valve at different positions for their new supercharger. Very enlightening video.
The real problem is the supercharger clutch sucks and fails a ton. Thats the number one reason why people remove the supercharger and go turbo.
Do you have a tune for this setup ? I would like to build a compound turbo setup , which fueltech ecu do I need and do you have a fine already for this setup ?
Where can I buy this kit, and installation guide?
Please put out a video of someone riding one of these beasts.
What about supercharger clutch👀
I just never could understand the pressure maps 🤔
Would like to see it at a dyno to see hp num
Anderson
You guys do any motorcycle projects or customer bikes ?
Be the First Man, call then and check this out
Go to the channel @MuriloMG87, is a Brazilian rider who races with bikes prepared with Fueltech
❤😁👍
Anderson you need to talk Kyle from @Boosted Boiz into building a 1000hp Jet Ski so the two of you can race them on the water and I wonder if a B-series or a K-series 4cyl Honda engine would fit in a Jet Ski in the original engines same configuration without having to modify anything because I wouldn't think that you would have to modify a whole lot if you did an engine swap and if you did I wouldn't think it would be much you have to modify but on video the Yamaha 4cyl engine does look alot smaller than a Honda 4cyl engine out of a car and another thing I don't see why you couldn't make a 1000+hp with the compound setup on the Jet Ski because you can make 1000+hp from a Snowmobile engine and that should be the next build for Fuel Tech is a 1000hp Snowmobile with tracks on it so you can make passes with it on the drag strip and then do a high horsepower 4 wheeler or dirt bike or a high horsepower scooter or something else crazy like that as long as you have somebody to ride it
10:37 "...two atmospheres times two is four atmospheres, which is three bars..." 2x2=4=3????" a bar is an atmosphere right?
HO LEE CHIT !!!.
Would like to see a setup with a screw type supercharger.
No
I wonder how it would perform if you fed the turbo with boost from the supercharger. Seems like less restriction, quicker spool and better compounding effect.
looks like your going to the moon with Tesla
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