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Engine Specific Info and Questions => IDI Engine => Topic started by: zukgod1 on March 12, 2007, 10:09:18 am
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Hello all,
I currently have a NA car so I have nothing to use for compairison.
Wondering wht the major/ minor measurements are on a stock compressor wheel.
Same for the Exhaust wheel.
Any have a link to that info or just know it?
Yes I did a search, it was a quick one but a search none the less.
Thanks
dan
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http://vwdiesel.net/phpBB/viewtopic.php?t=3252&highlight=garrett+dissasembly
http://vwdiesel.net/phpBB/viewtopic.php?t=1841&highlight=k24+dissasembly
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That's what I needed, Thanks.
Basically I was wanting to compair to 2 turbos I have sitting in my shed.
I have no idea what one is but it seems small, I'll be taking it appart soon to measure the wheels.
The second is a HY-35 that I got for my Toyota Diesel project that's already sold.
I was really wanting to just run the HY on the 1.6 but I doubt I could spin it untill like 5K rpm. Just to big. If I was really ambitous I could use it in a compound series but I just dont think I can get that done.
Here are the measurements from the links and the measurements onthe HY I already had.
Stocker Turbo
Exhaust Turbine
inducer 49.5 exducer 59mm
Compressor
inducer 37.5 exducer 60.5mm
Holset HY-35
Exhaust Turbine
inducer 58 exducer 65mm
Compressor
inducer 54 exducer 78mm
dan
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Funny thing is that I've not only had an hy35 on my 1.9 but in a compound setup with the stocker turbo.The hy spooled too little and too late.Another guy on this forum (Hilfolk'r) spl?? used the hy35 as a single with his mechanically controlled TDI and had very similar issues as me we could both only manage 20-30 psi with either setup.
There is also a smaller turbo that came on some of the US 1.6 diesels it was the k14.The 1.9 TD in canada used the k03,T2 and k14.
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(http://f10.putfile.com/thumb/7/19519273874.jpg) (http://putfile.com/pic.php?pic=main/7/19519273874.jpg&s=f10)
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(http://f10.putfile.com/thumb/7/19519273874.jpg) (http://putfile.com/pic.php?pic=main/7/19519273874.jpg&s=f10)
I love it :twisted:
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Here's the whole thread as it seems your interested :wink: http://vwdiesel.net/phpBB/viewtopic.php?t=2538
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Oh believe me i have read it! Thank you.
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Funny thing is that I've not only had an hy35 on my 1.9 but in a compound setup with the stocker turbo.The hy spooled too little and too late.Another guy on this forum (Hilfolk'r) spl?? used the hy35 as a single with his mechanically controlled TDI and had very similar issues as me we could both only manage 20-30 psi with either setup.
There is also a smaller turbo that came on some of the US 1.6 diesels it was the k14.The 1.9 TD in canada used the k03,T2 and k14.
originaly I was going to install the HY on a 2.2ltr toy diesel but sold the truck.
I was concerned that the 1.6 would have a heck of a time spinning it.
This is now confirmed by your post.
Let me ask though, even with ony 20-30 psi wasnt there enough/more air flow than with a large single?
I would think even if the HY wasnt spinning up where it could be that it would be moving more air than the stocker could at the same RPM.
dan
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Here's the whole thread as it seems your interested :wink: http://vwdiesel.net/phpBB/viewtopic.php?t=2538
Oh ya, I've spent some time reading that one for sure.
dan
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The 20-30 psi comes too late in the rpm (22 psi @4500rpm approx) well past where we need it for the diesels torque at much lower rpm.The only way to get it spooling to 22psi was burning over double the stock fueling.The stocker T3 turbo works well upto 23-24 psi and spools 10 times better.
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The 20-30 psi comes too late in the rpm (22 psi @4500rpm approx) well past where we need it for the diesels torque at much lower rpm.The only way to get it spooling to 22psi was burning over double the stock fueling.The stocker T3 turbo works well upto 23-24 psi and spools 10 times better.
That's what I was afraid of.
I'll just find a good stocker for my use and drive it till it breaks.
dan
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But what we are not comparing apples to apples, the volume of air the hy35 moves at 22psi, is far greater then the volume of air the T3 moves at 24 or even 30psi. Hence the reason that it takes double or more the fueling. The Hy35 as a single turbo moves enough air (intercooled) to support 280-310whp of fuel. The T3 maybe 130-140whp (intercooled). :wink:
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This is a good point.
I guess the question would be then would the HY in a compound config move enough air with say a Giles steroid pump and some larger injectors to keep the EGT's livable?
Say set the waste gate on the small primary to approx 15-20 psi and hope the HY is spinning by then so when the small turbo is getting close to the end of it's MAP the waste gate opens and the HY takes over.
See I don't plan on racing this car at all, it's a commuter. I want it to be a fun commuter to the point that if a ricer decides to overtake me I can wind it up and watch their jaw drop for fun.
dan
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This is a good point.
I guess the question would be then would the HY in a compound config move enough air with say a Giles steroid pump and some larger injectors to keep the EGT's livable?
Say set the waste gate on the small primary to approx 15-20 psi and hope the HY is spinning by then so when the small turbo is getting close to the end of it's MAP the waste gate opens and the HY takes over.
See I don't plan on racing this car at all, it's a commuter. I want it to be a fun commuter to the point that if a ricer decides to overtake me I can wind it up and watch their jaw drop for fun.
dan
Well you would, have to ask Andy about that as he has the only running setup like that around and at this point it is just a challange to keep the head gasket from leaking. Maybe after o-rings we will see just that.
I think for any sorta serious power we are going to have to be willing / capable to run into the 6500rpm+ range becuase then a turbo like the hy-35 becomes a viable turbo, giving a full 2500rpm's of usable boost.
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I found that the hy35 was too big for compounding and have went back to the hx30w.The hx30w is a tad too small to run without having a wastegate open but the wastegate will be set to keep it where I want it.I've saw 1 cummins 5.9 compound setup that used a wastegate on both trubos (They are on a ford with cummins conversion in the latest issue of Diesel Power magazine :wink: )I'm done playing around with turbos and believe I've got it sized as good as I can get it without spending too much more time and money.
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Are you running HX30W as a single or in compound system?
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Compound, with k24 hot side and k14 cold side.The T3 moves too much exhaust and the k14 not enough so the k24 worked well and worked better with the k14 cold side.
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Have you tried to run it single? I tought it is small enough :roll:
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I have not ran the hx30 as a single It would be interesting to see how that would work though.I believe it would make a great single for the track or dyno but would be too laggy for street use or a daily driver.
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But what we are not comparing apples to apples, the volume of air the hy35 moves at 22psi, is far greater then the volume of air the T3 moves at 24 or even 30psi. Hence the reason that it takes double or more the fueling.
I've heard that more than once and I don't get it. I can understand that a smaller turbine might cause added restriction/inefficiency on the exhaust side of things but I don't see how a larger compressor pushing 22 psi is pushing more air into the cylinders than a smaller one pushing the same pressure. The way I see it, what moves air into the cylinders is the pressure differential between outside the cylinder and inside it when the intake valve is open. Granted, the flowing ability of the head from one to the other changes the amount and rate of flow, but given those parameters are the same, 22 psi is 22 psi. As I said, a small turbo might restrict the exhaust side and reduce hp in that manner, but I don't see how a larger turbo pushing 22 psi is pushing more air than a smaller turbo pushing 22 psi. In fact I am sure that one can calculate the exact amount of air molecules in a given volume if given it's temperature and it's pressure.
Andrew
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Good point Andrew [as always] :lol: ... Hang on the ticker-tape is coming out of my head. ... What if the smaller turbo has to do more work on the gas to pressure up the inlet manifold. Would it not raise the temp more so that it was less gas taking up more room because it was hotter... Maybe... but then the smaller rotor does less work per blade but needs more slices of air; so maybe work done is very similar... Should I post this? What the hell... :roll:
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@libbybapa:
offtopic but i just need to ask
how the hell can you make a good quote instead when i or Mark(The Miser)UK do it by example
Greetz, Benjamin
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[quote="Benjamin
@libbybapa:
offtopic but i just need to ask
how the hell can you make a good quote instead when i or Mark(The Miser)UK do it by example
Greetz, Benjamin[/quote]
maybe this :?: I Use the 'code' button
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I have not ran the hx30 as a single It would be interesting to see how that would work though.I believe it would make a great single for the track or dyno but would be too laggy for street use or a daily driver.
I have a Schwitzer S2BG as a extra turbo, I´m going to try it with smaller T3 exhaust housing. It has little bigger wheels than HX30. I know it won´t be a torque monster with that, but im not looking for that either. If it´s not working the way I like, I´ll change back to GT23V.
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@libbybapa:
offtopic but i just need to ask
how the hell can you make a good quote instead when i or Mark(The Miser)UK do it by example
Greetz, Benjamin
When you are replying to a post you will see a series of check boxes under the reply window. Check the one that says "Disable HTML in this post". Alternatively you can go into your profile and set that to be a default for every post you do, then you don't have to remember to do it in individual posts. IMO It would be great if the initial profile setup had that as a default setting for anyone setting up an account and then if someone knew how to use HTML they would also know how to un-check that box, but alas it is not so...
Andrew
thanks a lot.
i'm pretty shure the admin's will find this setting and set it as default.
ok, back to turbo's now :D
Greetz, Benjamin