Back to the dyno: 1.6 15g @ 10psi
1 Attachment(s)
The last time I was at the dyno was just under two years ago. Back then I was at 10-11 psi, and I put down 206 whp / 178 ft-lbs.
Since then, I've had a better 3" full exhaust fabbed in place of my old 3" dump before the rear axle, and I've also done a lot of various maintenace items like fuel filter, spark plugs, etc. Last but not least, I actually turned the boost down a hair - so that it was just a solid 10 psi instead of fluctuating up to 11. I also set up an EBC solenoid connected to a switch in the cabin to allow me to switch between a regular boost setting (10) and a lower conservative psi. Yesterday the BMWCCA was doing a dyno day so I attended and did a couple quick runs. Details: Stock 1.6 - 130k miles (turboed for 30k now) Greddy TDO4H 15G on Greddy manifold BEGI downpipe CXR intercooler / custom 2.5" piping No AFM -converted to MAP DYIPNP Megasquiqrt / 460cc RX-7 injectors (70% duty cycle) Run 1 the dyno guy was having issues getting rpm signal so it's not on the chart Run 2: 10 psi flat -207 whp / 208 ft-lb Run 3 - low boost setting: just barely 7 psi - 186 whp / 180 ft-lb - I really wanted it to be lower, like 5 psi, but I'm having trouble getting the wastegate to go lower. Run 4 - 10 psi again, but with the silencer insert in the muffler - 193 whp / 199 ft-lb - I run with the silencer in most of the time I'm on the street and was curious how much power it restricted. Turns out it saps ~6% Attachment 190116 Don't believe the rpm too much - on the chart it looks like he stopped at 6k but he hit the rev limit of 7200. He was having trouble getting a strong spark signal to read on the dyno and was messing with the calibration in the dyno's computer, so I think the scaling for the rpm is off a bit. So, 208 ft-lbs is a solid 30 ft-lbs more than back with the old mufflerless dump exhaust! Overall pretty happy. 3 years and 30k miles turbocharged and the original unchanged 1.6 is still going strong. -Ryan |
thing spools like asshole...what's the deal?
care to post timing map? |
Wow man, our setups are almost identical. Any reason you're looking at 10psi as your "high" boost setting? Got a lot on the table there.
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Originally Posted by Braineack
(Post 706958)
thing spools like asshole...what's the deal?
care to post timing map? |
I guess if he started sampling at 1000rpm it would look normal, just not used to seeing a torque dip like that before the turbo spools.
here's the last greddy kit I tuned: http://www.boostedmiata.com/gallery2...1/rappadan.jpg EDIT: okay yeah, looking at the OP's plot, it's majorly messed up. The 5252RPM crossover points are inconsistent....Dyno definitely wasn't metering the tach correctly. |
Originally Posted by kotomile
(Post 707755)
Got a lot on the table there.
That's making great power for 10psi on a 1.6... be very happy with those number. |
Originally Posted by samnavy
(Post 707825)
Yeah, like engine life.
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http://a6.sphotos.ak.fbcdn.net/hphot..._3059333_n.jpg
its on a dyno dynamics that reads 15-18% lower then a dynojet |
hmm dbl post.
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