[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / r / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Board
Settings Mobile Home
/o/ - Auto

Name
Options
Comment
Verification
4chan Pass users can bypass this verification. [Learn More] [Login]
File
  • Please read the Rules and FAQ before posting.

08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
[Hide] [Show All]


[Advertise on 4chan]


>7 years of driving turbo cars
>got my first car with a blower a few weeks ago and love it already
It's only the Jag V6 but the response, whine and power across the rev range are fucking brilliant. Is the only reason we don't get more supercharged engines because they make Greta cry?
>>
the reason you dont get more supercharged engines is because they are wholly inferior. that's the only reason.
>>
>>28638568
>they are wholly inferior
Are they though? Supercharged performance engines tend not to lag behind their turbo counterparts in output
>>
>muh parasitic losses
I don't know OP. Supers are easier to install, have zero lag, and linear power output. I have a NA 351 truck now and I'd lean for a super over a turbo.
>>
>>28638614
Exactly, with my car it's supposed to have parasitic loss that makes it less effective but the Jag V6 is based on a V8 that came out in 2009, and it's easily competitive with engine designs in kts from BMW and Audi that came out seven+ years later. The twin turbo V6 in the C43 outguns it admittedly but the Merc/AMG unit probably had about 10 times the development budget of the Jag engine
>>
We should start seeing more forced induction blown by an electric motor. That gives the best of all worlds where it can be completely disengaged for fuel efficiency or produce any level of boost completely independent of engine RPM. This actually gives it the ability to have even less lag than a supercharger since it can start pressurizing the intake manifold before RPMs even increase.
>>
>>28638568
>they are wholly inferior.
In terms of emissions and WHO cares??
>>
>>28638796
This, electric turbos are the future
>>
>>28638796
That's it mayne
>>
>>28638691
>>28638691
>supposed to have parasitic loss that makes it less effective
It makes them less *effecient* than turbos, sure, but so long as you run the right size supercharger and pulley combo, you won't make any less power. Fuel consumption is pretty much the only downside, as far as I'm concerned.
>>
>>28638566
Yes. How DARE you.
>>
>>28638568
the quickest and most powerful cars in the world are supercharged.
>>
Roots blowers have better throttle response than a turbo, centrifugal blowers are easier to install, but neither will make as much peak power as a turbo at a given boost pressure and engine size.

Pick your use case really.
>>
>>28638994
Supercharging for hill climbing?
>>
>>28638989
The gayest cars you mean
>>
>>28638989
Because turbos were banned for being too fast
https://official.bankspower.com/project/custom-projects/banks-pacemaker-top-fuel-dragster/
>>
>>28638998
I suspect an appropriately sized turbo is still a better option. Modern turbos and tuning mean you can get on boost and take advantage of extra torque low in the rev range as you're coming out of switchbacks and whatnot. Theoretically on a hillclimb that has tight twisties as well as very strong straight sections might benefit a supercharger that doesn't choke the top end like a smaller turbo might, but the parasitic losses are real.
>>
>>28639192
cope
>>
>>28639199
Good luck finding a turbo that rips right off idle like a twin screw and doesn't choke the top end.
>>
>>28638796
The traditional turbo with an electric motor attached that Porsche is using now is pretty neat. Can use the electric motor both to quickly spool and maintain rpm while there is limited exhaust, as well as use it as a regenerative brake to have super specific control over turbo speed. It is the future of forced induction for sure.
>>
>>28639201
I know you are but what am I?
>>
>>28639202
Definitely true, which is why you see a lot of hillclimb cars using larger turbos and aggressive antilag strategies to offset the lag coming back onto power around tight corners. Modern control strategies for turbocharging are incredibly flexible which is why supercharging has fallen behind in a lot of motorsports applications.
>>
>>28639192
Turbos were banned beaches of costs.
Nitro methane basically burns out the turbos every run.
Increase the costs per run by a shit ton if you had to replace 2 turbos per run
>>
>>28638566
>water methanol injection
>dyno tune
>>
Superchargers sound so much better than turbos.
>>
>>28638568
>says something retarded and completely false
>refuses to elaborate
>>
>>28638566
>It's only the Jag V6 but the response, whine and power across the rev range are fucking brilliant
That's the biggest reason why i'm leaning towards supercharging my engine over turbocharging.
I know i can get more high end power with a turbo, but living in the hinterland with lots of winding turns and anything closer to the suburbs is full of double lane roundaboust i think having access to that extra power will be much more useful in my day to day drives.
>>
>>28639203
>>28638796
Honda is making a motorcycle with this which I'm really excited about
>>
>>28639409
Nice, I wonder how long it'll be before this sort of tech trickles down to the consumer aftermarket.
>>
>>28638568
If I cared about being superior or efficient I would drive a hybrid. Superchargers are cool so I like them, simple as.
>>
>>28638796
audi and merc have had that since 2018
>>
File: 20241001_080020(1).jpg (2.11 MB, 3728x2796)
2.11 MB
2.11 MB JPG
I went from a supercharged car to a turbocharged car and I have to say I miss the linear power and the sound. Supercharging really is the thinking man's forced induction.
>>
File: 20250923_115613.jpg (2.46 MB, 3192x1887)
2.46 MB
2.46 MB JPG
>>28640341
What did you change it to?
This is mine, I honestly don't think I'd go back to a turbo car. Definitely a V8 for me in a few years, only worthwhile upgrade.
>>
File: kek.jpg (24 KB, 382x342)
24 KB
24 KB JPG
>>28640341
Show bobs and vegana
>>
>>28639222
literally why care, if people want to spend money then let them
>>
File: zIMG_20220416_193720704.jpg (719 KB, 1920x1080)
719 KB
719 KB JPG
>>28640907
XKR owner here.
Supercharged V8 is absolutely the play I adore mine.
>>
>>28640907
Golf GTI. Apart from the raw performance, I like it better in every way.
>>28641081
Those were like that when I bought it, I swear.
>>
>>28641438
>Those were like that when I bought it, I swear.
You bought a woman's car then. Unless it's some fetish like sniffing the seats or licking the pedals I don't get the appeal.
>>
>>28641796
definitely not for driving, no. only retards buy a car to drive.
>>
>>28638796
Creaming my pants at the idea of a bolt-on version of this becoming available for big blocks. I wanna shove one into my Challenger.
>>
>>28641796
It was a boomer's, actually. Just as bad but whatever, it's not mine anymore.
>>
>>28641826
that electric turbo kit that cleetus mcfarland tested is the beginning. only 5 psi iirc but it's the start of something great
>>
>>28641199
Looks awesome
I really like the X150 XKs but the torpedo shape stands out much more
>>
>>28641199
How tough is to wrench on one? Engine bay looks packed real tight, like engine out for any job tight, same for the rear end or so I heard.
>>
File: 230611113606.jpg (594 KB, 1440x2160)
594 KB
594 KB JPG
>>28641945
it's not the easiest but I've managed to do most jobs myself so far. Most of the things you'll actually be working on are at the front and rear of the bay which have enough room to get by. The most involved things I've done in the bay are pulling the supercharger a couple of times and replacing all the rear hoses. I haven't done any major work to the rear yet but getting to the diff properly does mean dropping the subframe out which is a bastard.
>>
>>28641950
Great, thanks.
>I haven't done any major work to the rear yet but getting to the diff properly does mean dropping the subframe out which is a bastard.
Saw people drilling the wall of the trunk just to get to the diff filling plug to replace the fluid (there's no drain plug and the fluid is "lifetime" apparently) without dropping the subframe.
>>
holy fuck garrett came up with something genius
>electrically assisted turbo

Its basically a regular turbo, but it also has electric motor to help the turbine to get to operating speed faster.
>massive turbo
>no lag
It also works in reverse, you can get energy back from braking with the motor.
Combine that with those 48V alternators/starters that can add power to the engine and you get even more free hp.
>>
>>28641961
Do you know electric motors really dislike heat? Even more than ICEs, especially those with permanent magnets?
>>
>>28641966

>what is coolant

Porsche have electric assist turbos on production cars
>>
>>28641966
most electric motors are made to withstand 266F.
Permanent magnets need much higher temps to stop working.
Turbos are often watercooled, so no real issue to keep them cool.
The rotor of the e-motor is on the same shaft like the rest of the turbo, so no issues with regular bearings that could dry up and seize

I dont see any issues with this system
>on paper
>>
>>28641966
If you have heat shielding in the right places it shouldn't be too difficult. They should have turbine backplates like they do on the compressor side. There are turbos that are largely plastic now so who knows what can be done.
>>
>>28638566
Belt driven compressors are proper shite
>>
>>28641796
Kekd
>>
>>28638568
Not sure. Superchargers are smooth and they’re seemingly less expensive to fix
>>
>>28641970
>what is having several separate cooling circuits
No shit, that's genius. I mean that is becoming the norm, but it's an overcomplication people usually try to avoid.
>>28641974
>most electric motors are made to withstand 266F.
I bet an aidiot told you this. Some are, some aren't, getting an accurate reading on the magnet is hard, so the general rule I'm used to is to keep below 100°C or even 80°C to be on the safe side.
>Permanent magnets need much higher temps to stop working.
Depends on the material, and they don't "stop", they just become weaker, permanently. Also their properties even below the point of permanent damage depend on the temperature, and in general cooler is better.
>Turbos are often watercooled, so no real issue to keep them cool.
But they don't really care if it's 50 or 150°C in the circuit unless it affects the lubrication system.
>The rotor of the e-motor is on the same shaft like the rest of the turbo, so no issues with regular bearings that could dry up and seize
The bearings are not a problem, the motor is. It's way more delicate than two pieces of metal rotating on a stick. If it's direct drive, there going to be a lot of heat transfer. If it isn't, there's still an issue of really hot environment they are going to subject the motor to.
>>
Fun fat - it took about 230 bhp to drive the supercharger of a late-development 27 litre Merlin V12, which produced about 2000 bhp
>>
>>28638566
Jags are awesome. Superchargers are awesome.
My dream is still to get an F-type with the 575 hp supercharged V8.
>>
>>28641961
Is this in anyway better than the variable geometry twin-scroll turbo chargers they make? Genuine question; I would like to know if variable geometry is actually the better option.
>>
>>28638568
> wholly
smoother power delivery?
less moving parts?
>>
>>28642279
>Is this in anyway better than the variable geometry twin-scroll turbo chargers they make?
Yes. The motor can scroll up the compressor side to deliver boost when the exhaust gases wouldn't be able to (turbo lag). It's also superior to a supercharger as the motor only takes power when it needs it to develop boost - you're driving the supercharger all the time



[Advertise on 4chan]

Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.