building a turbo
building a turbo
How easy is this? I want a t3/t4 hybrid but don't really feel like buying a whole new turbo since I already have a spare t3 in the garage. Can I just get a t4 compressor housing and swap it on with the correct compressor wheel? I like the t4 because they're supposed to flow a lot of air (according to other people around the intarweb)
ideal the turbine should be a mm or two bigger than the compressor to get the max out of compressor
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
If everything clears it's a matter of swapping parts, and sending it out for balancing.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Hmm, I might have to research this further when I'm in front of a computer
Why not just keep surfing craigslist? I found a turbonetics T3/T4 60 A/R for $250 locally. I think I'm going the HX30 route instead though. My factory garrett is kaput. Too much high boost. (17psi steady, spike to 20psi while shifting)
I'll probably keep surfing craigslist until I settle on something
Okay now I'm thinking of going HX30, who has one and how does it perform? How is spool up time compared to a stock Garrett?
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
An HX30 is huge-when we put one on the tractor it turned 5psi at redline, the garrett hit 12psi.
But with a big pump you could probably get enough juice flowing to spin it up faster.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
MFSuper90 has one on his car, from what I've read in his thread it seems to work pretty well, and I don't think he even has a superpump
It spools slightly slower than stock, but not even enough to tell a difference really. My hx30 is only slightly larger than stock, inducer wise only about 1mm, but the exducer is what helps the map so much. Exhaust is bigger, but I didn't measure it to know for sure.
I'm still running stock pump, just turned up with no Alda. The turbo has an MWE groove, makes it sound awesome
Is that one of those turbos I see with the little holes in the front of it?
Not necessarily hole, but they have a ring around the comp wheel, then a space, then where the intake would clamp on. If you google MWE groove it'll pop up. Pretty cool how they work.
I did a little research, the ported shrouds have an MWE groove, and the holes in the comp housing provide the air to the MWE groove, instead of being open like most others
The achieve "anti surge" by making the compressor map wider, thus moving the surge line. They don't completely do away with surge, but it can help. And they whistle like crazy and sound awesome
If your looking for an hx30 make sure you pay attention to the exhaust housing size, 7cm is the biggest I would consider for a stock pump 617. I have a 6cm on mine and that's what I would recommend for decent spool.
An he221 would be the bees knees for a 617, with a 5or 6cm housing. The only thing is you have to adapt it for a t2 or t25 (can't remember which)
Adapters are no problem, I can get stuff cut with a water jet for essentially free. And if I'm nice to one of my professors I can probably use the machine shop at school. Or I could use the machine tools at work lol
After doing a bit of digging, it seems like ported housings are the old way of doing it, i.e. a shroud within a shroud. Like this:
The new way of doing it is to use a bell mouth and drill holes through it down to the mwe groove.
Like this:
Not sure why this is, is someone able to clear it up?
I don't know if that's the "new" way or not, but I think it's just another way to do it. Because BW, Holset, even precision still make the ported shroud type
I think I'll probably end up going HX30, I guess I'll have to keep my eyes open for one, probably 6mm with that fancy groove because I want to hear it spoooooool, because my t3 doesn't make much/any noise
Or keep an eye out for an he221, they are very similar to a hx30 but outflow them by a couple lbs. plus you can get one with a little smaller housing. I'd probably rather have a 221 than a 30 on mine. But hey, It works
Okay so next question, what to do about oil supply/drain for hx30? I doubt the stock stuff bolts up? I'm tired of the Garrett, time to go bigger, and I get paid next week. Also, can't turn up the pump until I get more boost, and I have a leaky oil filter housing gasket and figured that would be the perfect time to adjust the pump a little since I don't want to pull it a bunch of times
(11-30-2013, 06:14 PM)hooblah The new way of doing it is to use a bell mouth and drill holes through it down to the mwe groove.
Not sure why this is, is someone able to clear it up?
(11-30-2013, 06:14 PM)hooblah The new way of doing it is to use a bell mouth and drill holes through it down to the mwe groove.
Not sure why this is, is someone able to clear it up?
I always thought the ported shroud was to lessen surge?
(03-12-2014, 06:23 AM)Turbo shadow can you please extend your explanation of[/quote]
-"Ported shroud housing takes efficiency out of compressor (as it bleeds air) and it should not be used because of looks or sound... "
(03-12-2014, 06:23 AM)Turbo shadow can you please extend your explanation of[/quote]
-"Ported shroud housing takes efficiency out of compressor (as it bleeds air) and it should not be used because of looks or sound... "
Shadowmaker is right (as always )
Recirculating some of the air means compressing it more than once, this lowers the overall compressor efficiency. On some turbos like low trim, big compressors, not very noticeable (Holset HX35/40 and so on still have an amazing high compressor efficiency with these ports) while the best example for how bad it can be is the HE221W with very poor compressor efficiency but a very wide map for its compressor wheel size. The bigger the port or slots (the more air being recirculated) the lower the compressor efficiency will be.
If you have no surge issues without it, no need to add it if it isn't there already.
(03-12-2014, 02:29 PM)Alcaid Shadowmaker is right (as always )
Recirculating some of the air means compressing it more than once, this lowers the overall compressor efficiency. On some turbos like low trim, big compressors, not very noticeable (Holset HX35/40 and so on still have an amazing high compressor efficiency with these ports) while the best example for how bad it can be is the HE221W with very poor compressor efficiency but a very wide map for its compressor wheel size. The bigger the port or slots (the more air being recirculated) the lower the compressor efficiency will be.
If you have no surge issues without it, no need to add it if it isn't there already.
I can agree in some extent but I would be careful in making it a statement.
It is so dependent what you want to accomplish. simply I can not understand why the manufacture of turbos no not elaborate more with the swirls extent in the inlet for lower the aerodynamic load on blade in the compressor when surge is an issue, of course it would be more expensive. and buy using advance vane diffuser more aggressive outlet blade angles would be interesting so more the behaviour that pressure ratio can increase with flow and not becoming a limitation what do you think about that shadow
(03-12-2014, 02:29 PM)Alcaid Shadowmaker is right (as always )
Recirculating some of the air means compressing it more than once, this lowers the overall compressor efficiency. On some turbos like low trim, big compressors, not very noticeable (Holset HX35/40 and so on still have an amazing high compressor efficiency with these ports) while the best example for how bad it can be is the HE221W with very poor compressor efficiency but a very wide map for its compressor wheel size. The bigger the port or slots (the more air being recirculated) the lower the compressor efficiency will be.
If you have no surge issues without it, no need to add it if it isn't there already.
does the hx30 come with a divided housing??? just curious is all
I've seen them on eBay with them yeah
(03-12-2014, 03:51 PM)Turbo ...what do you think about that shadow
(03-12-2014, 03:51 PM)Turbo ...what do you think about that shadow
Can you share some findings with us?
Competition drives innovation. Let us praise your innovations!
"Of course there are experimental and race oriented turbos out there that aren't currently available for the masses.
Our OM606 have used some of these findings already..."
(03-14-2014, 10:32 AM)CRD4x4 Can you share some findings with us?
Competition drives innovation. Let us praise your innovations!
"Of course there are experimental and race oriented turbos out there that aren't currently available for the masses.
Our OM606 have used some of these findings already..."
(03-14-2014, 10:32 AM)CRD4x4 Can you share some findings with us?
Competition drives innovation. Let us praise your innovations!
"Of course there are experimental and race oriented turbos out there that aren't currently available for the masses.
Our OM606 have used some of these findings already..."
(03-12-2014, 04:26 PM)DirtDiesel does the hx30 come with a divided housing??? just curious is all