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+--- Thread: CAT Turbocharger CAT320B on a OM617 (/showthread.php?tid=3265)
CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-11-2012
Ok here we go...
I got myself a CAT30B Caterpillar Tubro Changer today. It looks to me to have a T3 flange on it. So it should blot up to my exhaust manifold with ease. But... It dosn't have a wastegate. From my understanding it has to have a wastegate. So how do I mount a external wastegate onto it? Please refer to my photos.
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RE: CAT Turbocharger CAT320B on a OM617 - kmaser - 01-11-2012
Yes you would need to mount an external wastegate, no CAT engine has an internal wastegate
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-11-2012
I been trying to find a how to guild on porting for a external wastegate and haven't found anything.. Can you give me a quick walk though.
RE: CAT Turbocharger CAT320B on a OM617 - Captain America - 01-12-2012
Hes got it under control now!
RE: CAT Turbocharger CAT320B on a OM617 - dieselboy - 01-12-2012
(01-11-2012, 10:00 PM)kmaser Yes you would need to mount an external wastegate, no CAT engine has an internal wastegate
Lol wat? When was the last time you worked on a cat? 1970?
RE: CAT Turbocharger CAT320B on a OM617 - sassparilla_kid - 01-12-2012
Could you possibly get some sort of valve that will open (at whatever pressure you want) and vent boost through the overboost sensor port on the intake manifold into the exhaust post-turbo or something? Just a thought
RE: CAT Turbocharger CAT320B on a OM617 - kmaser - 01-12-2012
(01-12-2012, 02:04 AM)dieselboy(01-11-2012, 10:00 PM)kmaser Yes you would need to mount an external wastegate, no CAT engine has an internal wastegate
Lol wat? When was the last time you worked on a cat? 1970?
Yes, 1970 was the last time I worked on a CAT how did you guess??? Lol
I was at work and was only thinking about it in terms of what I work on ( stationary natural gas Engines ) not the smaller diesel's.. My bad!
RE: CAT Turbocharger CAT320B on a OM617 - willbhere4u - 01-12-2012
I don't know if your going to have enough room for this with that turbo
this is an option it bolts between the turbo and exhaust manifold
look up t3 flange blow off valve adapter
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
(01-12-2012, 10:51 AM)willbhere4u I don't know if your going to have enough room for this with that turbo
this is an option it bolts between the turbo and exhaust manifold
look up t3 flange blow off valve adapter
Found that thing last night on ebay. I think I got room for that. But I need to find a wastegate that can take up to 20psi. like 38mm or somthing
Ok there is my question. Like I been looking at different gates. Like they have different springs that you can get for them, but like they are rated for like 14 psi. So is that max 14 psi or min 14 psi..
http://www.ebay.com/itm/38MM-Turbo-Stainless-Steel-Wastegate-14-PSI-SILVER-/380400743357?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item5891a6b3bd#ht_4566wt_1179
like this one.
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
Ok Im back....
This is my plan right now...
Start off with this flange
http://compare.ebay.com/like/180744333712?var=lv<yp=AllFixedPriceItemTypes&var=sbar&_lwgsi=y&cbt=y
With this wastegate
http://www.ebay.com/itm/GSP-44MM-GT-SERIES-V-BAND-TURBO-EXTERNAL-WASTEGATE-15-29-PSI-SPRING-400HP-JDM-/280802893960?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item4161282088#ht_2685wt_1021
With these to take my 38mm wastegate flange to 44mm to fit the bigger wastegate
http://www.ebay.com/itm/Adapter-Tial-38mm-44mm-Wastegate-Billet-Machined-/380345717122?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item588e5f1182#ht_1115wt_946
And then with this dump pipe
http://www.ebay.com/itm/35mm-38mm-Wastegate-Flex-Braided-Stainless-Dump-Pipe-Kit-w-MIld-Steel-weld-Bung-/260930707496?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item3cc0aea028#ht_3129wt_1179
RE: CAT Turbocharger CAT320B on a OM617 - Captain America - 01-12-2012
Maybe use the EGR as wastegate?
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
What? Explain please
RE: CAT Turbocharger CAT320B on a OM617 - larsalan - 01-12-2012
shit, he's talking about dumping it into the exhaust mani at the egr port. Not a bad place for it. Just need to figure out how to connect to the mani. Kinda an odd little nipple thingy there.
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
I think thats dumb. Dumbing exhaust gasses back into the system. Nah.
RE: CAT Turbocharger CAT320B on a OM617 - larsalan - 01-12-2012
No.....
It is dumping what is considered extra intake air into the exhaust mani. That's where its going anyway. Unless you have the screamer
I wonder what is the difference if the extra boost goes into that exducer (like in the exhaust mani or in that t3 adpater thing with the hole in it)
or just out the exhaust pipe or a screamer where it skips the back half of the turbo all together.
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
I think im going to do a screamer.
RE: CAT Turbocharger CAT320B on a OM617 - larsalan - 01-12-2012
Yah, sounds awesome. PS those pictures are way too big, it is making my little computer have a heartattack ack ack ack
RE: CAT Turbocharger CAT320B on a OM617 - Simpler=Better - 01-12-2012
Use the stock EGR as a wastegate. Just unhook it from the intake manifold and set it up so that when you hit 13psi a vacuum switch allies vacuum to the EGR actuator.
RE: CAT Turbocharger CAT320B on a OM617 - willbhere4u - 01-12-2012
That flange you posted a link 2 converts from t3 to t25 flange
You probably want a t3-t3 style I assume
RE: CAT Turbocharger CAT320B on a OM617 - larsalan - 01-12-2012
(01-12-2012, 04:07 PM)Simpler=Better Use the stock EGR as a wastegate. Just unhook it from the intake manifold and set it up so that when you hit 13psi a vacuum switch allies vacuum to the EGR actuator.
he told me he wants 20psi
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-12-2012
At least 20 PSI
(01-12-2012, 06:29 PM)willbhere4u That flange you posted a link 2 converts from t3 to t25 flange
You probably want a t3-t3 style I assume
My Bad
Edit
This one
http://www.ebay.com/itm/T3-T3-CAST-38MM-WASTEGATE-WG-FLANGE-MANIFOLD-TURBO-CHARGER-ADAPTER-TURBOCHARGER-/190626542909?_trksid=p3284.m263&_trkparms=algo%3DSI%26its%3DI%26itu%3DUCI%252BUA%252BFICS%26otn%3D20%26pmod%3D180744333712%26ps%3D54
RE: CAT Turbocharger CAT320B on a OM617 - Captain America - 01-13-2012
Haha! You guy are out of your fuckin mind!
I mean what Simple=better said
once you hit desired psi, vacuum is applied to EGR that would "waste" boost into the atmosphere
RE: CAT Turbocharger CAT320B on a OM617 - Simpler=Better - 01-13-2012
No no no!
The EGR would be blocked off on the intake side. The exhaust side of the EGR would still be hooked up, but instead of dumping into the intake, it dumps to atmosphere. When you hit the desired boost level (13, 20, 78) somehow activate a vacuum switch to open the EGR, which now vents the pre-turbo exhaust to atmosphere.
RE: CAT Turbocharger CAT320B on a OM617 - larsalan - 01-13-2012
so all the mechanics are hooked up the same way. Just that 'waste' boost goes through the intake mani --> egr valve --> exhaust mani --> exducer ---> tailpipe/atmosphere
right?
RE: CAT Turbocharger CAT320B on a OM617 - Simpler=Better - 01-13-2012
Nope.
To slow the turbo, you want to vent pressure pre-turbo. The easiest way to do that is use the existing EGR valve and replumb it to vent the pre-turbo exhaust to atmostphere. The boost decreases because the turbo then slows down.
If you were to run it as a blow-off valve you would be wasting boost, and keeping the turbo working harder than it needs to constantly.
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-13-2012
I like the wastegate idea better than the EGR valve idea.
RE: CAT Turbocharger CAT320B on a OM617 - Simpler=Better - 01-13-2012
If you don't mind buying a wastegate hell yeah! I like to make things the cheap not-necessarily-right-way :p
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-13-2012
I got money to spent
Do you guys think that turbo will make more than 20 PSI?
RE: CAT Turbocharger CAT320B on a OM617 - willbhere4u - 01-13-2012
I'm sure the turbo is!
But probably not without a custom injection pump and some serious cylinder head port work
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-13-2012
Yes that leads me to my next set of questions. Custom injection pumps and port and polish.
RE: CAT Turbocharger CAT320B on a OM617 - sassparilla_kid - 01-13-2012
Im still trying to figure out what the advantages of the CAT turbo will be over the stock one?
RE: CAT Turbocharger CAT320B on a OM617 - dieselboy - 01-13-2012
My hy35 hits 20psi with the wastgate unhooked.
I cannot remember the exact size on the 320b but the compressor inlet looks odd.
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-19-2012
Anybody got a idea how to get a 44 mm wastegate onto the port for the egr valve thats on the exhaust manifold? Anybody want to make me something?
RE: CAT Turbocharger CAT320B on a OM617 - aaa - 01-20-2012
Probably could just put a v-band wastegate on it.
RE: CAT Turbocharger CAT320B on a OM617 - led-panzer - 01-20-2012
Do you have a map for that turbo? Or other info? You could take it apart and measure the wheel inducer/exducer + number of blades would give you a very rough estimate. And finding/figuring out the turbine housing AR will give you a rough idea of how fast it will spool/whether you need a wastegate at all
RE: CAT Turbocharger CAT320B on a OM617 - serverman777 - 01-20-2012
Cat dosn't give out any info or specs on there turbos
.... I have it apart right now and could measure the ind/exdcer. Can you explain more about the measurements