I do run 2" hot side and 2.5" cold side just as 18 suggested.

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Looking at some old logs, I was able to maintain 15psi up to 6300 with my old 3 port boost solenoid maxed out at 100% boost duty. It does sort of look like my wastegate was getting blown open around 5500, but again, I can't be certain until I try the new can on the small turbo.

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major props for literally running ALLOFIT :likecat:

Seriously, thanks for saving me the effort.

The large one will hold 20psi past 7000 easy with proper clamping force on the wastegate. But it comes on a bit later than the insta-spool small one.

Can you post a log for an #allofit pull? It doesn't seem right to me that the boost would fall off that fast with the waste gate wired closed.

Why not? It's a relatively small chinacharger

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That's one of the things I like about the TD04. If you are at 15psi at sea level (approximately 2.0 pressure ratio), and flowing 0.18m^3/s at 65% efficiency (Blue Circle), then go to high elevation so you need, say 2.3 pressure ratio to keep that 15 psi, you can still flow the 0.18 m^3/s and be at the same or better efficiency (Red Circle) making the same power. It won't over-speed either at that. (assumes EBC that drives the targeted manifold pressure, and that the turbine can support the compressor, which I think is easily the case)


https://cimg8.ibsrv.net/gimg/www.mia...167e28e28c.jpg

Props for running all of it. You are one of the few edge case customers I have as you already had a built motor. So you could push as much through the stock turbo as you wanted without fear. Hopefully one of the larger ones makes you happy.

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why's tps max out at 80?

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You need to setup your engine states before you start doing any other 1.5 tuning. AidanJ has a few good posts about it if you search. Also the MS3PNP Pro handbook from DIYAutoTune has some decent info in it.

Also mine has quite a bit more timing up top. Someone with way more experience than me might want to look at tour ignition map

When I did a #allofit pull on my Chinese 2854, it would go up to about 22-23 psi then taper back to about 14psi or 15psi by 7500 rpm rev limit. The poor little turbo cant provide the flow to maintain 20some psi up that high.

His log seems ok for what he's doing. Not great, but not bad either.
Probably richen up the midrange slightly and lean out the top end, as well as smooth out the timing between the two extremes, and not have it start tapering up top.

I'd be curious to see a proper virtualdyno plot for this. I bet it makes torque lol