MD/VA/PA Fall Dyno Day and Meet Oct 15 '11 - Page 5 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-15-2011, 02:39 PM   #81
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Cant make it, tranny still blown haha.
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Old 10-15-2011, 09:12 PM   #82
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So it was a good day at the dyno. I ended up making the most power at about 240hp, unfortunately my car was shooting flames out that back which was causing us not to go to redline. On the street I am not having the problem. So I need to figure that out. I am definitely upset that I could not hit 300hp. Hopefully soon I can afford to actually go dyno tuned and figure hit the power numbers I want.
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Old 10-15-2011, 09:12 PM   #83
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102hp, yeahhh!! So exhaust, cops, exhintake, seafoam and a better tune netted me 8hp. And I guess I didn't quite drill the cam gear in the right place for the exhintake mod cause max power is now at 6000rpm vs 6400... anyways, here's a vid of Lars making fire.

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Old 10-15-2011, 09:35 PM   #84
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I had a great time as always meeting all you guys in person. By next dyno I swear I'll have a stronger bottom end and a Godspeed gt3076.
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Old 10-15-2011, 09:39 PM   #85
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102hp, yeahhh!! So exhaust, cops, exhintake, seafoam and a better tune netted me 8hp. And i guess i didn't quite drill the cam gear in the right place for the exhintake mod cause max power is now at 6000rpm vs 6400... Anyways, here's a vid of lars making fire.

epic winning!!!!!!!!!!!!
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Old 10-15-2011, 09:45 PM   #86
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epic winning!!!!!!!!!!!!
Like Min's kick *** Charlie Sheen t shirt?
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Old 10-16-2011, 12:32 AM   #87
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I took a nap and played some Resistance 3 and saw a movie.

I think I felt maybe like 1/4 hp.
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Old 10-16-2011, 09:32 AM   #88
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I made it out for Chipotle afterwards. Rolled up and everyone was gone. It was a good day to drive topless though. A bit cool so my nips were perky.
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Old 10-16-2011, 10:29 AM   #89
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It was fun and definitely a great day for a ride. Still unhappy I don't have my Miata yet...
But it was great meeting all of you and to see that turbo Miatas are alive and well. It's also incredible to see that no two engine setups are even remotely close to identical! I wish I'd seen more Miata runs, but I can't wait for spring when I can Dyno my own!

Anyway- here's some random pictures from my phone:






Last edited by shuiend; 10-16-2011 at 11:20 AM.
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Old 10-16-2011, 11:41 AM   #90
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epic winning!!!!!!!!!!!!
I'm pretty sure he was loading up your car wrong. he did something to the gearing ratio or something, cant remember what like rpm/mph and it was way off compared to every else's even though you still have 1:1 and 4.1 final in 5th gear.
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Old 10-16-2011, 12:53 PM   #91
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I'm pretty sure he was loading up your car wrong. he did something to the gearing ratio or something, cant remember what like rpm/mph and it was way off compared to every else's even though you still have 1:1 and 4.1 final in 5th gear.
He was definitely changing something trying to get rpms right. They should have been close because he had them right in the spring with his original settings. Ed also kept trying to run in 4th and I had to keep telling him to run in 5th.

Did you happen to get a print off of my runs? I totally forgot to ask him for them. Maybe I will call up tomorrow and ask if he could fax them to me or something.
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Old 10-16-2011, 02:57 PM   #92
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He was definitely changing something trying to get rpms right. They should have been close because he had them right in the spring with his original settings. Ed also kept trying to run in 4th and I had to keep telling him to run in 5th.

Did you happen to get a print off of my runs? I totally forgot to ask him for them. Maybe I will call up tomorrow and ask if he could fax them to me or something.
Why would 4th vs 5th affect hp? I thought that the only effect would just be to make the pull longer?
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Old 10-16-2011, 06:08 PM   #93
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Did anyone's wideband agree with the dyno wideband? Mine read about a point leaner...
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Old 10-16-2011, 06:46 PM   #94
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Did anyone's wideband agree with the dyno wideband? Mine read about a point leaner...
My wideband was reading about half a point leaner than the dynos based on my logs. Lars probably just fried the o2 sensor with his fireballs.

I'm kind of wondering if something was going on, as I was a good bit down on power from the spring (98 peak vs 105) without significant changes to the car. The plot was much smoother this time after messing with the AE settings and the powerband looked the same but was shifted down everywhere.

Soviet, what were you putting down in the spring? I was peaking at 105 in the spring with an exhaust, crappy tune, and a ghetto shopvac hose intake. Did anyone else see some odd variations between previous runs and yesterday? I figured with as cool as it was yesterday if anything things would be skewing higher.
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Old 10-16-2011, 10:59 PM   #95
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Quote:
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Did anyone's wideband agree with the dyno wideband? Mine read about a point leaner...
But when Lars' car was running under low load and not boosting the wideband read 14.7 constant as it should in closed loop (assuming Lars' car goes CL). So under non-rich conditions it seemed OK.
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Old 10-16-2011, 11:04 PM   #96
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In spring I was at 94hp but with stock exhaust, stock intake cam and stock ignition.
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Old 10-17-2011, 10:37 PM   #97
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I was a good bit down on power from the spring (98 peak vs 105) without significant changes to the car.
well, I was at 83 whp on a pretty stock 1.6 with 67K miles on the engine. Ed asked me about my diff and I mistakenly told him it's a 4.3, but it is actually a 4.1 Not to mention the annoying exhaust leak. Not sure if this explains why so low, I am very tempted to run a leak down test on the car. The compression I did a couple of weeks ago was great (175 across all 4) so not sure what else could explain the low output.

Florin
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Old 10-18-2011, 09:21 AM   #98
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Soooo why does this guy have to enter anything for gear ratio? This is what makes this type of dyno 'better' than a dynojet?

Do you get your $50 back if the dyno operator fails?

Nice to see some of you guys again. I got to see part of an old turbo porsche's dyno run.
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Old 10-18-2011, 09:45 AM   #99
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Soooo why does this guy have to enter anything for gear ratio?
because instead of a pickup on the ignition, the dyno reads the engine speed by the rollers themselves.
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Old 10-18-2011, 11:00 AM   #100
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That's what I assumed when I saw the Porsche run, but I assumed that was because they couldn't reach the spark plugs under the intercooler. But really? No RPM pickup?
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