DIY small 16g at ~8.5psi
#1
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DIY small 16g at ~8.5psi
Dynapack dyno. A bit less power than I was hoping for, but I'm quite pleased for the money invested. I will post a log of the pull when I get home. Thinner, lower line was at an "improper" ramp time.
Useful things I learned while on the dyno (3 pulls, power pulls only):
1) I accidentally had an old map loaded with EBC DC values set to start opening the WG at 3000rpm instead of 3600rpm. Oh well. Boost held steady otherwise.
2) Apparently I hadn't tuned very well at redline, as I went so rich I thought God himself was powering my injectors. Very rich up top.
3) Dip in power at ~5200rpm is from a very rich region.
Some things I haven't figured out:
1) Why would the torque be dropping so much as I climbed into the rev band?
2) Not sure what was causing the richness at 5200rpm, because running the pulls through VE Analyzer didn't alter those cells much.
Useful things I learned while on the dyno (3 pulls, power pulls only):
1) I accidentally had an old map loaded with EBC DC values set to start opening the WG at 3000rpm instead of 3600rpm. Oh well. Boost held steady otherwise.
2) Apparently I hadn't tuned very well at redline, as I went so rich I thought God himself was powering my injectors. Very rich up top.
3) Dip in power at ~5200rpm is from a very rich region.
Some things I haven't figured out:
1) Why would the torque be dropping so much as I climbed into the rev band?
2) Not sure what was causing the richness at 5200rpm, because running the pulls through VE Analyzer didn't alter those cells much.
#5
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I have Ben's pulls on tape, so once I figure out how to hook the cam to the computer, I'll upload. Probably just a matter of finding the right drivers/software and a USB cable.
#10
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I bought the manifold and downpipe as a set from somebody that hadn't ended up using it; he had it made custom by Turbo Tony of GReddy downpipe fame. It's schedule 40, I believe (very thick anyway) and places the turbo real low to allow for the large, straight downpipe. Internal wastegate. If I were to do it again, I would change my intercooler setup, but I absolutely love the manifold/turbo/downpipe combo.
#11
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By the way: looking back at the logs posted here, and checking my VE table...I was DAMN rich between 3000-4000rpm, you can see it in the log image posted. Looks like VE Analyzer richened up the cells at the way top, which are only averaged in maybe 25% due to the kPa increments), when I hit overboost protection while tuning my EBC. Huh. I've got some almost-out-of-range cell tuning to do by hand.
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