CAT Turbocharger CAT320B on a OM617
CAT Turbocharger CAT320B on a OM617
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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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.
Hes got it under control now!
(01-11-2012, 10:00 PM)kmaser Yes you would need to mount an external wastegate, no CAT engine has an internal wastegate
(01-11-2012, 10:00 PM)kmaser Yes you would need to mount an external wastegate, no CAT engine has an internal wastegate
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
(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?
(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?
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
(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
(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
Ok Im back....
This is my plan right now...
Start off with this flange
http://compare.ebay.com/like/18074433371...si=y&cbt=y
With this wastegate
http://www.ebay.com/itm/GSP-44MM-GT-SERI...685wt_1021
With these to take my 38mm wastegate flange to 44mm to fit the bigger wastegate
http://www.ebay.com/itm/Adapter-Tial-38m...1115wt_946
And then with this dump pipe
http://www.ebay.com/itm/35mm-38mm-Wasteg...129wt_1179
Maybe use the EGR as wastegate?
What? Explain please
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.
I think thats dumb. Dumbing exhaust gasses back into the system. Nah.
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.
I think im going to do a screamer.
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?
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.
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?
That flange you posted a link 2 converts from t3 to t25 flange
You probably want a t3-t3 style I assume
(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.
(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.
(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
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
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
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?
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.
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?
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?
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?
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.
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?
I like the wastegate idea better than the EGR valve idea.
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 you don't mind buying a wastegate hell yeah! I like to make things the cheap not-necessarily-right-way :p
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?
I got money to spent
I'm sure the turbo is!
But probably not without a custom injection pump and some serious cylinder head port work
Yes that leads me to my next set of questions. Custom injection pumps and port and polish.
Im still trying to figure out what the advantages of the CAT turbo will be over the stock one?
My hy35 hits 20psi with the wastgate unhooked.
I cannot remember the exact size on the 320b but the compressor inlet looks odd.
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?
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
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