Miotta dyno results
I wanted to get a baseline of the Miotta with the hurt turbine wheel before I replaced it with a new one.
Quick setup: 100% stock 1.6L w/ 93k gt28rs with .84 turbine housing Toyota COP conversion Standalone Megasquirt Custom intake manifold Lovefab exhaust manifold w/ Tial 38mm wg 3" exhaust 10.3 psi slow creep to just about 11psi http://i295.photobucket.com/albums/m...otta-dyno1.jpg Here is the the turbo btw.... http://i295.photobucket.com/albums/m...s/IMG_0460.jpg Of note... I was running the highest Intake Temps i've seen... apparently dyno fans can't emulate driving (Drive home was 85deg, I was almost 100 on dyno) Mikey (dyno/shop owner) mentioned dyno is probably ~2% high due to the format we had to use for a clean pull (rpm dialed in by gear) I did not expect 230+ though :p |
wtf did you do to that turbine? too much launch control?
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Originally Posted by Arkmage
(Post 292826)
wtf did you do to that turbine? too much launch control?
Basically I bought it like that, unknown damage. Came off an Audi working fine... none of us had a clue it was like that. Either run too hot... or something ran through it. Doesn't smoke or whine or anything.. but it works. I'm looking forward to getting lost spool back though when I put a new CHRA in. |
they call that a 'clipped wheel' :giggle:
for flowwww. |
When do you plan on upgrading components?
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Not so much as an upgrade, but a repair. I'll be sending the turbo in for an exchange soon. Few weeks? Then its time for retune and more boost.
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Dave,
Nice numbers on a "hurt" turbo! Are you still running stock exhaust cam timing too?? Where did you get the dyno testing done? Mitch |
Impressive..
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Originally Posted by sn95
(Post 292847)
Dave,
Nice numbers on a "hurt" turbo! Are you still running stock exhaust cam timing too?? Where did you get the dyno testing done? Mitch Dyno'd over at Pro Function in Burr Ridge. Used to be called Factory Five when they were in Arlington Heights. |
So when is the new CHRA coming in?
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Originally Posted by cjernigan
(Post 292859)
So when is the new CHRA coming in?
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What's up with the stupid dyno dynamics default x axis numbers?
3800, 4400, ... |
Originally Posted by JasonC SBB
(Post 292862)
What's up with the stupid dyno dynamics default x axis numbers?
3800, 4400, ... I kind of suspect it was my rear wheels... no hubcentric rings... and they are off a bit right now.. was too lazy to realign them ahead of time.. didn't even think about it :p Its movement on the dyno, was translated into the rollers and into the dynos brain.... brain bumps... |
Nice turbine. :(
Good numbers though. |
Nice job Dave - I think a new turbine wheel will show a good improvement in the HP curve right after your torque peak. That's where I saw the most improvement from a similar change.
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aw, your hurt turbo numbers are WAY better than mine, looks like you're just missing spool...once it starts spinning it looks like it's doing its job just fine.
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Heh, that reminds me... gotta edit the signature... need a +230rwhp in there ;)
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1 Attachment(s)
I bet next time it will look like this:
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Had a minute to combine a few datalog snapshots.
http://i295.photobucket.com/albums/m...no-datalog.jpg Has anyone else noticed that you can't put multiple vertical lines and get extra datapoints on screen in MLV anymore? I swear you used to be able to... |
It's kind of hard to tell how much without verticle line on it but why it looks like you're leaning out a decent amount between 1 and 9 psi. I guess at that point you're still only at a couple psi so it shouldn't be an issue, but still shouldn't it be decending steadily?
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