StavTech- TURBOS! Special Holsets, TD04 to HE221W, and sequentials!
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- čas přidán 3. 01. 2019
- First practice with the new camera, and made a StavTech video out of it...
Today I look at a hi-tech new Holset HE400 VGT turbo, a special HX35 turbine housing with a giant internal wastegate, a higher flowing version of the HX35 turbine wheel, show you how you can direct fit a Holset HE221W to any engine that normally has a Mitsubishi TD04HL turbo from the factory, and finally some mythbusting about sequential twin turbos, in particular the Legacy twin turbos.
Like and share and subscribe and all that stuff, and hopefully will be making more videos soon. - Auta a dopravní prostředky
HOLSET is the best turbo in the world!!!!
Volvo love!! YES!!!
There are some fantastic holset turbos out there im in the process of fitting my he221w to my saab b204. All fits but the t25 flange sits much closer to the compressor housing than the holset one. This is not an issue as the he221 ive got has the 7cm housing and billet compressor which i'll use for obvious reasons. i have fitted the 12 blade td04 turbine shaft from the aero as the 11 blade holset one was damaged (holset turbine shaft is a little longer but everything is interchangable it still fits). Thanks to your info i would have never known so cheers
How did it go?
@@Sammyboyschnitzel It never happened well on my car. It ended up on an om606 but not sure on the build.
Hey Stav-tech thank you for your information about this turbo, because of you it is on my wishlist this year. I have an question about it. I have a volvo 940 b230FK with the 13T turbo. COuld I change the outlet housing from this turbo to the HE221? Kind regards, James
hey Stav how important is not exceeding 70psi oil pressure on the he221w? my engine saw 80psi at revs with no load and im considering a OPR..
hi, building a hybrid turbo based on he221w with the exhaust part of the td04-vnt would it be possible? a variable geometry he221w would be a fantastic thing.
What would the he221w be like at about 300-330hp on a saab b204? Or could you suggest a more suitable 1, cheers for any help
Have you got a link to the stand alone controllers..
Or a name..
Cheers
hi Stav, love your videos mate!👍🏻 could you please give me 1 or two models that will best suit my 1987 porsche 944 turbo it’s modified it’s a flat 4 pot 2.5 with currently the standard kkk26 turbo that when it was live mapped we couldn’t get over 300 bhp becuase of the turbo and exhuast. i’m increasing exhuast to 3” and would like to make up to 450 max 400 ideal . i have a separate dual port 38mm Tial . i really like the holset turbos and want to be different as everyone else uses garrett
love strong torque over bhp so love the boost pull
appreciate your time and help
Daniel 😉😊
You know what, Certain spec Holset HX35 is very very easy to fit to a 944! You got the 6cm or 8cm turbine housing? Different years had different ones, but the 8 is the one.
Basically if you find a HX35 with the 55-65 turbine wheel (most are 60-70, but with a lathe it would be easy to take the housing out that 5mm anyhow), it honestly bolts straight in to your K26 housing!
If you also find an earlier H1C compressor housing that comes without the anti-surge inlet it’s a normal 2.5in inlet that will fit to your normal intake pipe too tbf.
From what I remember, Tim’s Turbos in the USA have built direct fit HX35s for 944s doing exactly this.
wow Stav that was quick thanks so much! unfortunately mine would be the 6cm one as mine has the smaller turbo of the two as mine was originally 220bhp and the last of the 944 turbos went to 250 so i will have the smaller one unfortunately ☹️ i have got a lathe though and if it’s something i could still use mine and take some out to make fit let me know? not overly fussed with the inlet boot fittings ect as i was thinking of fabricating one up but if things could give me what i want even better.
what power will the hx35 be able to give me Stav and what can i go with now knowing that i have the 6cm kkk?
if this wouldn’t be an option what others would you recomend? i’m new to the turbo ins and outs itself which is why i’m asking the question as you are the only person i seem to trust in your knowledge which is second to none . i’ve followed your channel for a while now and really respect your knowledge.
if i have to modify bits i’m happy to do so but if like you said i coukd lathe something down and use mine that would be amazing but would it get me the 400 ?
thanks again
@@danielferraro59 Well, while the 8cm certainly flows more, the smaller 6cm BUT machined to fit the more common 5mm larger HX35 turbine might well flow as well or better. Frankly I'd try it if it was me.
You need to basically lathe both the parts of the turbine that match with the turbine inducer and exducer out by 5mm, and try and make a smooth transition between the two that matches the turbine wheel profile. Doesn't have to be perfect, but obv closer the better.
But aside from that, HX35 cores bolt directly to K26 and K27 turbine sides in my experience.
Depending what HX35 you go for, most are 600bhp capable compressors pushed hard, and the typical 54mm 7 blade or 56mm 8 blade could do 400 with ease and I don't see the fact it's 6cm being the big restriction there.
that’s amazing Stav , thanks so so much you don’t understand i’ve put this off for 4 years becuase i didn’t want to waste any more time and money. i totally rebuilt my kkk26 like a wholly instead of changing the turbo, for a bigger/better one, and i built my engine from nuts an fb bolts as a tunner turnt up the boost and cracked one of my cylinders right through, so to keep the engine numbers original i got racing wet steel liners made up and mine milked out and new ones fitted in, as they where one aluminium mould before to the block with allusil /silicon embedded cylinders. they also detonated holes in two of my prisons so it was cheaper going the custom racing route which is what i ended up doing even the rods are bespoke and racing studs ect . but i just didn’t give my turbo a second thought other than rebuilding it. i see some hx35 s on the bay but not sure as they say 160bhp so do you think there the knockoffs as a lot are from china and i don’t want to risk that? do you think i could buy the hx35 core direct from holset?
i would be 100 % up for lathing mine out if i can find a 35 core and seeing how it goes , i’m assuming there floating bearings as most are arnt they?
i actually love the way mine spoils pretty quick but just doesn’t hold it strong higher up and the tunner didn’t want to push the boost becuase of heat soak, so i’m left disappointed, but i realised my compression calculations were slightly wrong also when getting my mls gasket made so i’ve redone the measurements again with running alcahole this time and burett and not a syringe and i have something like a .6 mm higher combustion figure now so once heads all built up again it should be allot better torque wise 🤞
also forgot to ask you, are the hx35 cores water fed aswell as oil as mine are both? not that it matters if there not
Hi can I ask would u consider the he221w good to use on a2.5 audi 5 pot engine petrol , looking for around 250 bhp and good torque going on a t4
See if you can find a compressor map..
I will look to because I want to get one
Hi Stav, is this swap possible using the TD04H 16t 11cm2 turbine housing?
Ragupathy K No. L for 211. HL for 221. H for nothing I know of
Interesting!...... so are you saying that I could buy an HE221W turbo, switch the turbine housing from my td03l -13T onto it and hey presto, I suddenly have a compressor capable of flowing 300+ hp and still great spool due to using the small td04l turbine housing?
Has your TD03L got a TD04HL turbine wheel? If not, no.
Stav-Tech sorry, typo! It’s a td04l -13t from an Impreza WRX.
TD04L has a smaller turbine wheel than a HL, so a HE221W won't fit. Works for me as I got an aftermarket TD04HL Subaru fitment turbine housing.
BUT you can use the HE211W instead, which has the same size (but more efficient) turbine wheel as the td04L and is a straight swap in to the OEM housing.
Compressor Racing currently are stocking some special HE211s with basically the HE221 sized compressor wheel too.
Stav-Tech fantastic advice! Thank you. 🙂👍
interestingly there is a Danish website selling the he221w as a perfect match for a tdi/hdi engine. and i guess it would be able to spool if you rev high enough but they also state that i gives low end torque. am i wrong in thinking that it would have a noticeable lag on a 1.9 liter tdi engine? i have the 1.6 td equipped M24/T3 turbo on my mtdi and it has lag. basically no boost in first and second gear and only full boost at 2500-3000 rpm in third, i dont know why it's labeled as a T3 because it at least looks a lot smaller than a normal T3. but wouldn't you say that the he221w is to big for a 1.9tdi unless out rev the s**t you off it?
I’ve seen the 211 on a 1.6 diesel and it was full boost under 3k, so a 221 won’t be bad but when things like the 2260VKs etc off 3ltr audis spool so great on 1.9s and can make 300 plus I would probably go that way myself for a diesel
@@StavTech Ohh so they aren't lying i just can't find much info about tdi's running them. yeah i have a vnt15 laying around but the problem with mtdi is how to control the vnt. i have seen some people converting the actuator to boost pressure and flipping it around. but that seems like something that could kill the turbo quickly if done wrong.
@@J.F.K.O defo not lying. Seen 211s do fantastic on 1.6s and make over 250bhp easily so 221 on 1.9 should work great
@@StavTech ohh might be worth it to keep an Eye on a 221 then. I did notice when i got the mtdi engine running, it was faster but also has more turbo lag with the same turbo so im guessing there are less exhaust flow in a tdi vs td.
@@StavTech Steve you inspired me. you just cost me about 70quid :P i took a look around on the interweb and i may have just bought a gt2256v off of a Fiat Ducato. now to figure out how to control the vnt.
What's The Best Holset Turbo For A Chevrolet V8 ?
Considering Chevrolet V8 could mean literally countless engines and specs, that’s a how long is a ‘piece of string’ question unfortunately
4:04 with calculator 25cm is 1,93 A/R, but on this bigger turbos its even more (like 2,15+ a/r)
No. As those 'calculations' are pure BS, wildly flawed. It isn't a fixed thing vs A/R at all.
25cm isn't even close to that on a turbo this size, and the bigger the turbo, the smaller the equivalent A/R it is.
Hence how 25cm HX55s, which are 1000bhp turbos, hit full boost by 3500-3800rpm on 4ltr engines, as the A/R isn't 'that' huge at all.
@@StavTech ohh sorry :D i got it mixed up, so it is other way around, thx for correction
also one thing that confuse me is that hx55 (with if i remember correctly is 65mm) can do 1000bhp, and turbos like BW s400sx4 with 71-75mm are rated fore same hp (i see all the time those 70-80mm turbos used on youtube and guys in videos usually say they are 1000hp turbos, which compared to hx55 should do more)
Only bleeding one volute seems like an extremely shitty design