Originally Posted by johndoe
(Post 359571)
Glad to see your balls are dropping.
You're just glad to see his balls. |
Originally Posted by BenR
(Post 359585)
You're just glad to see his balls.
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Originally Posted by therieldeal
(Post 359550)
ummm...
117% duty cycle? you know thats impossible, right? 100% = open all the time. you cant make the thing stay open more than all the time... lol
Originally Posted by hustler
(Post 359556)
Stephen Hawking tuned this car and opened a worm-hole into a new quantum where duty cycles defy convention.
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My 550 rx7's tested at 580 to 590. Add to that higher than stock fuel pressure I can see a set of 550's actually running closer to 600-625. I'd guess that's how you can get past 100% duty cycle.
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You can't go over 100% of anything...
If the computer showed 110% duty cycle, that just means it's saying you NEED that much fuel to run the AFR it's trying to do at a given RPM and load. A fuel injector is only going to operate from zero to around 85 percent duty cycle, then it will jump straight to 100%. |
I think the confusion is about the 100%. That means they're open all the time and not closing, right? So you can't get more open then open hence the confusion about duty cycles greater than 100%.
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can we please not gay-up my thread with this dividing by zero bullshit?
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look at my duty here:
http://i40.tinypic.com/av23c6.png yes, I've fixed the map problem since, but don't have the newest log at work. Does Since I'm at 70% duty, does that mean I need more fuel pressure? |
Your wastegate sucks. If you're below 80%, you're fine. More fuel pressure won't hurt anything though, but would require you do to something simple like install an adjustable regulator.
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Originally Posted by patsmx5
(Post 359753)
Your wastegate sucks. If you're below 80%, you're fine. More fuel pressure won't hurt anything though, but would require you do to something simple like install an adjustable regulator.
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I love my $70 shipped 38mm knockoff tial external WG. Fucking gets the job done like a champ. It's nice. And consider I'm running an even bigger turbo than you, and I can run 8 pounds to redline if I want.
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Is there a cheap, stock replacement, higher pressure FPR, or do I have to buy the Aeromotive piece?
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you're afrs are like 11:1, lean them out and then see what your duty cycles are
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Originally Posted by Mach929
(Post 359813)
you're afrs are like 11:1, lean them out and then see what your duty cycles are
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11.5 is my target at full boost too. Reliability>10 more hp. I'll run 11.5:1 and run an extra pound of boost, make the same power, and have a more reliable setup.
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Originally Posted by hustler
(Post 359751)
yes, I've fixed the map problem since, but don't have the newest log at work.
re? |
Originally Posted by Atlanta93LE
(Post 359836)
What'd you end up doing to fix it?
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Originally Posted by hustler
(Post 359814)
11.5 is target for a track car like mine.
my car went from like 75% to 60% going from like 10.5:1 to 11.8:1 |
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