NefMoto

So im running for now TD04HL-19t from volvo on 1.8t dbw engine with 8.5cr all good but wants moar

The k24 from 300hp volvo seems pretty easy to setup here

Anyone here had experience with that on a tiny engine?

19T an K24 Volvo Compressor are pretty much the same in case of possible flow.

If you run them on four Cylinder 2.0l Volvo Turbo whiteblock engine from SV40, you will get around 330 to 340 real HP.

K24 Turbine is smaller and 1000 degree rated, enabling you earlier boost if rest of system is capable of that. VVT helps a lot.
I guess your 1.8T has no VVT?

In Volvo Engine you have a lot more EGT and Knock with K24 on fixed Valve train. Should be the same issue for 1.8T.

Be sure having enough fuel ready to delivered. Older Volvo Engine with fixed valve train needs around lambda 0.72 to 0.74 in knock area. Top Lambda depends on EGT of course, but is mostly around the same target to stay under 1000 degree in Volvo.

People use K24 on 1.8t on Audizine , if you wanna ask there,apart from that cant say much else except that AFAIK the porsche flanges wont bolt up to stock manifold.

Not so much with the older BW stuff myself but this mk1 was running a 1.9 KR 16V engine & K27 at nearly 2 bar so you should be okay with the smaller one. I'd also suggest looking at the Holset's too if ur swappin mani out, can get some cheap ones from their Wuxi factory on Ali, HX30 should do 36lbs/min or you can get a HX35 with 8/9cm turbines.

https://www.youtube.com/watch?v=GXCryn0rrjQ

...because soon you may want more, I suggest TD05H20G 7cm2 or 8cm2.

Volvo K24-7400 makes around 340hp on pump fuel and spools about the same as the oldschool K24-7000 from 2.2T.

well its definetely larger but looking old style with huge center hub
VVT was removed some time ago but can be returned ofcourse


(https://a.d-cd.net/ae9a238s-960.jpg)


The thing is that im already at T3 mani with volvo adapter to TD04 flange. Doesnt want to global mods here so this is only pros of K24 for me
cons: rare, expensive, 80s technology, servicing?
I like the holset option and for now im in process of online tuning car with HX35W installed on 2.0 stroker so waiting for result
But ive never had oil cooled turbo so oil cooling should be done for that and a lot of changes in the bay
And the main question - is this chinese turbos able to hold up 2bar boost without chinese things?


Totally different flanges etc

Why dont you try the He221w? It outflows the k24, does much higher pressure ratios and better efficiency islands aswell. One of the best small fast spooling capable turbos. If you already have a t3 manifold , you could use a t25 adapter.

"Totally different flanges etc"
--------------------------------
it comes with many flanges: subaru IHI style, T3, Toyota style, Mitsubishi style...in case you will fabricate new exhaust manifold, you even could combine flanges. I made mine with IHI-T3 integrated pattern flange, as an example. Just saying!

Ok, maybe "size" was wrong description.

It is the Turbine AR which produces the mentioned problems.
Maybe along with bad dynamic behavior due to missing VVT.

But i only guess that you will have the same problems.

So if arund 340 Hp is enough for you, you can give it a try.


Possible Volvo K24 Upgrade ist K2480 Compressor on original Turbine (+30 Hp) or TTE 400 Hp Upgrade.

Why not TD04HL-19t from Kinugawa?

China Rubbish in my opinion. But as of its nature cheap ;)

Had two major failures right after install and after few kilometers, but years ago.
Maybe better these days...

Holsets are designed for high boost, although on diesels, but many have used them at high boost on various petrol engines no problem. Turbine side sizes can vary massively so you tend to have to make sure you spec it right and a few other niggly bits like slightly different flanges, high boost pressure wastegates, wg's slaving off one runner etc

The old China arguement tend's to be a fallicy at times, massive companies like that go for top quality ISO standards as they are producing so many they'd lose far too much money if they kept failing, I spoke with some companies to make custom parts like stainless steel cast exhaust manifolds, with all the quality standards cert's etc and prices came to around 30-40% of what I was quoted in the UK.

There a few copies about over there though, proper ones tend to have the Wuxi or other Holset factories details on the labels like these - if I remember right these, or there was/is tons about like this, is due to them being used for excavation machinery who, being underground, had to change to water cooled turbo's for fire/health and safety reasons - hence the barely used and funny paint schemes. Been a few years but that's what I remember.

https://www.aliexpress.com/item/32808187709.html?spm=2114.12010612.8148356.3.157a1c70ZVilrJ

in fact now im looking for a holset one :)

im running genuine, stock turbo and 7+7 comp wheel and then 9 blades turbine wheel and gtx 11+0 comp wheel until its blown recently :)
they are nice but i missed with an engine internals - its 1.8T with CR8.5; TD04 surges until 4200rpm then pushes up to 5500 and finally tapering down pretty fast. so this ~1500rpm window not what you want in a daily car for sure
im not good in all that engine science, but i see here that TD04 should be used with less displacement as top-end turbo or large displaement where it didnt surges and made a smoot mid curve
correct me if im wrong im really not familiar with all of that things

Same here
Installed GT2971R style chinese on friends S3 and shit blows after a 10kms of 1.3 bar boost. The genuine one lives 2 years for now
Thus reason of lil scaring chinese turbos but seems like holsets ok


Imagine how this fcker fires up at the first start ::)

Exactly. I have a t3/t4 china and no issues so far, even ran full 1.8t full oil pressure thru it first starts( needed to clean afterwards) but otherwise no issue so far after 1000km ish, but dont push it above 21 psi. They run 2-3 years with hard abuse or 40000-50k KM I say they are well worth the money for that. Then you either get a new one or get a repair kit for 30~ bucks and run another 2-3 years.

The smaller HX30 variations easily get overshadowed by the HE221, look it up a genuine one can be had from Wuxi or Huddersfield for around 300+ bucks.

Few vids on 1.8:

https://www.youtube.com/watch?v=FSg9Pqk0Mmc

https://www.youtube.com/watch?v=JCi8HYbLaTc

Also if you have the time and want to do something "special" you could try using a VGT holset on 1.8T. Holsets VGT construction is much more robust than conventional Garrett, the vanes dont rotate but they slide axially instead, and they are rated for much higher temps, so could be a great project.

So here I am with the new tiny he221w 7cm
Bastard fits in td04hl hotside almost perfectly so I'm gonna try this setup in a few days

The he250wg promises more but super rare here

As for vgt seems they're expensive ones and I found some posts from mid 2000s bout using them in gas engines projects, variable a/r sounds great but if they actually are then why we are not using them?

Because most people dont even know about them and there is the issue of properly tuning it as its different from WG tuning.

For VGT i'd take a look at the HE351V/E, as its a HY35 equalivent with vgt, very good turbo also. You can run this turbo on gas because its not a variable nozzle turbo but as said VGT, it actually controls flow by reducing the A/R turbine by sliding door(the vanes are attached to this door too but they dont turn in any way), its way more robust than varyin the nozzles of a Garrett.

There is one Audi A4 2.1 stroker than ran it but not much more info on it. THey use them more on drifiting projects / japan cars with success.

Some people even put a ko3 5 psi actuator control the mechanism.

Here is a vid: https://www.youtube.com/watch?&v=TqJvzYxycTA

Holset Super HX35, oil and watercooled.
T3 singel entry, 8cm2 housing, 4 Bolt. About 300-450hp.
Non internal WG.
Compressor: 54/77mm
Turbine: 65/55mm

Holset HX30W. About 400hp, internal WG. T3 single entry.
Compressor: 44mm
Turbine: 52mm
Turbine housing: 6cm2, V-band.




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They sound more shop specific details which is sometimes what you need to enquire about, there are tons of turbine options on each of the Holsets, "Super" HX's are what's usually advertised for the more petrol orientated ones nowadays. Good luck on folks trying to get Huddersfield ones for any decent price in the UK, quotes of £1k+ is what I was getting a few years ago for 35/40's - was actually cheaper for me to get EFR's and I only live 30 odd miles away from Huddersfield and with trade accounts at the time! U.S. market seems far better for prices/options.

Interested to see how you get on with the 221 FB, what you hoping to crack, 300 brake? I think they're about 36lbs/min if I remember right, was leaning more towards the HX30 when I looked into it before better quality GTX copies came along in recent years.

Well you can get geniune ones from Wuxi for pretty cheap , if you are willing to wait obviously. Also saying HX35/hx30 or etc. is kinda irrelevant as there are over 200 variations of these turbochargers with different cm's , compressor, turbine etc. sizes.

Yes the 221 flows for 37 lb/min.

Holset CHRA weight is much higher and the transient response is horrible, that's why it's a bad idea to use a truck turbo on a car.
They are built for reliability first, everything else second. Most of these turbos don't even have electronic control in the applications where they are used.

As for VGT, Porsche has been using VGT turbos for a while on the 911 Turbo.

But it's not so simple as to just take a normal turbo and run VGT on it.
Most of the turbos when run on gasoline engines tend to be very close to the surge line for the compressor. There is some work to be done to have a compressor and turbine that will benefit from VGT without just sitting on the surge line all the time.

Described as 37lbs iirc slightly moar than 30hx and physically smaller so it's a bit easier to install
Hope it gives up to ~320 bhp with fast response. they're rated as 360 but i cannot believe it's possible with 7cm 0.49ar hotside and tiny 44mm comp inducer  ::)

Prj, little turbo pretty close to td04 and I didn't see noticeable difference in chra weight or geometry. There is no huge hub with tiny blades as usually on brutal trucks or the k24 we are started from and the main reason itl costs twise as much as kinugawa anti surge housing for td04 so I'm in

Holset makes/made some pretty good turbos, pretty much all their equalivents back in the day outflowed their Garrett counterparts ( like gt30s andsuch) , sure they aint the pinnacle of enginnering now but they still make some good stuff with very good value for the money, the cheapest you can go from this is china stuff.

Im sure it will be a fun car. ( Is this your personal/daily ? or ? )

FYI, I had bad experience with Kinugawa anti-surge housing...it surged, so went back to the non anti-surge one. Just my experience.

So ive done it
Had no time to tune pid etc but it's pretty good
Absolutely no surge on wot
Lovely truck sound and pretty fast response
Starts pushing at 3000-3500 depending on gear

I will post me7logs later

So what's this, 221 in a TD04 turbine housing? Both 7cm? Looks strong, 1-1.2bar ish to 1.8 ish in 500rpms! You'll have to delete the thread once you've tuned & posted, all the hybrid K03/4 lot will be after you!  ;)

:) lol

The problem with these turbos is not the spoolup, the spoolup is fine even on the HX35 when you look at a log from low RPM.
The problem is transient response with sudden load change in higher RPM. Where a gasoline ball bearing turbo gives you almost instant full boost these things take almost a second in transient response.

This has been tested and debunked already 10 years ago on 2.2T platform.
People also posted logs flooring car from low RPM, showing "how good" it is - anyone who's actually driven two configs knows that it's a load of horse shit.

The positive of the holset turbos is that it's:
1) cheap
2) reliable

Performance is not comparable in any way to gasoline oriented modern turbochargers. But of course the price is not really comparable either.
You get what you pay for.

It's definitely responses way quickier than td04hl19t
Take a short video way home, the boost gauge in the dash screen scaled as 0; 0.5; 1.0; 1.5 bar boost and the clutch slippering here so
https://youtu.be/Ujifopc9X74

Yes both are 7cm

I'd say it's a good alternative to k04 it's super fun in the mid-range but chokes after 5500 idk how about stock hotside but they are same a/r so i dont think much diff here

Of course some efr turbos completely destroys it but it's all about the price you know

How've you been getting on with this? Any updates?

Driving everyday for now and its a nice mid-frame turbo for 1.8t if you have experience with tune small-mid turbos with tight wg (stock one about 1.1 bar)
As i said before the only problem - it chokes after 5500 even with a good boost (1.4 - 1.7 bar) the air flow stops to raise at this point

I still didnt fix bad clutch so in the logs you see load drops nmot raises and so on

btw anyone has experience here with a LSD on a FWD ? is it worth?

It is not worth it,specially for a daily.

1. Its very expensive for what it is. I am assuming you are looking at Wavetrac or quaife ATB.
2. The ATB is completely useless once a wheel loses traction ,which will happen in FWD and if you dont have EDL then you can forget about it. The other option is PhantomGrip but its a hit or miss for some people are the benefits are minimal. If your gearbox is tired it can even destroy the whole differential gears since there is no wear surface.

Get some semi slicks like Nankang NS2R and you are set.

The local company sells them for ~$500 and a half to install
I believe its a kind of quaife type
Car has EDL its a good thing in the snow but useless at the WOT

The goal is to keep traction on a wet surface

Cool turbo.