Pat's Ebay Turbo Compound Boost Build
#283
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Yeah, that's pretty ******* terrible and I bet it has nothing to do with it being an ebay turbo. Although I've heard similar numbers from begi t2's, so maybe...
All the 1.8's can spool the larger t3 by 3K, and I can do the same on a 1.6 with corn. So why's your smaller turbo suck so much? Is something broken or did you just pick the wrong one?
All the 1.8's can spool the larger t3 by 3K, and I can do the same on a 1.6 with corn. So why's your smaller turbo suck so much? Is something broken or did you just pick the wrong one?
It sounds loud, like an open downpipe car, but not as loud.
And taco manifold too, but I did port it a bit to help it flow a little better.
The front turbo I'm using both ports. Bottom to post-intercooler pipe, top to turbo inlet. Just hook an MBC right to the bottom port? I can't do it on the top port, as that needs to be referenced to the turbo inlet.
Thanks. This went together fairly quickly, and I made a lot of custom stuff for it too. And kind of designed as I went too....
First step is turn up the boost. Then figure out how big of a magnaflow I can fit in the back and order, and decide what I'm going to do for a catalytic converter. And fix any problems that pop up. And figure out a cheap way to MS3 PWM my oil pump with RPM so that it's quiet at low speed/highway cruise.
#289
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Slow spool on "small" turbo: It's not seeing as much pressure differential on the turbine as it usually would since the big turbo adds a restriction in the exhaust. So it will spool more slowly.
#299
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From a control standpoint this setup is dirt simple. Two turbos, two wastegates. That's it. About to add an air pressure regulator to the rear wastegate's top port so I can adjust the pressure on that one up. Again, dirt simple stuff that just works. No tuning PID, no electronic anything to mess with. Simple and works, I ran this same one on the GT32 setup and it worked perfect, so I expect it to work here too.
Also found a small exhaust leak upstream of the big turbo, missed about 3/8" of welding on a spot, gonna fix that real quick so might spool that guy a bit better....
I'm planning to turn up the boost on the big turbo until I run out of fuel, then figure out how to get more fuel to it.